R. Castle

发表

HMQC‐NOESY: Application to a polynuclear aromatic at natural abundance

C. W. Andrews, G. Martin, Ronald, 1990 .

The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 4 . Benzo[f]thieno[2′,3′:4,5]thieno[2,3-c]quinoline and Benzo[h]thieno[2′,3′:4,5]thieno[2,3-c]quinoline and the total assignment of their 1H- and 13C-NMR spectra†

A. Zektzer, Jiann-Kuan Luo, R. Castle, 1991 .

The synthesis of lmidazo[4,5-d] pyridazines. VI. v-Triazolo[4,5-d] pyridazines, pyrazino[ 2,3-d ] pyridazines and 7H-Imidazo [4,5-d] tetrazolo[ 1,5-b] pyridazine

Stephen F Martin, Stephen F. Martin, R. Castle, 1969 .

The synthesis of derivatives of the novel pyrazino[2,3‐d] tetrazolo[4,5‐b] pyridazine ring system

R. Castle, L. DiStefano, 1968 .

Imidazo[4,5-d]pyridazines. I. Synthesis of 4,7-Disubstituted Derivatives1

R. Castle, W. Seese, 1958 .

The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 6. Naphthothienonaphthyridines

G. Martin, R. Castle, Sudabeh Pakray, 1991 .

Double-quantum-filtered zero-quantum-coherence two-dimensional NMR with broadband proton decoupling

G. Martin, R. Castle, M. D. Johnston, 1989 .

Double quantum filtered zero quantum coherence with broadband homonuclear f1 Decoupling

G. Martin, R. Castle, M. D. Johnston, 1989 .

Assignment of the NMR spectra of benzo[b]triphenyleno[1,2‐d]thiophene through the application of zero quantum proton—proton correlation combined with proton‐detected long‐range multiple quantum heteronuclear chemical shift correlation

A. Zektzer, Gary E Martin, G. Martin, 1988 .

Total assignment of the 1H‐ and 13C‐NMR spectra of dinaphtho[1,2‐b:1′,2′‐d]thiophene through the concerted use of two‐dimensional NMR techniques

G. Martin, R. Castle, M. D. Johnston, 1988 .

Establishing vicinal proton‐proton connectivities using two‐dimensional proton zero quantum coherence NMR

A. Zektzer, G. Martin, R. Castle, 1987 .

Isolation of sulphur heterocycles from petroleum- and coal-derived materials by ligand exchange chromatography

Milton L. Lee, R. M. Campbell, M. Nishioka, 1986 .

Physical Properties of Pyridazines

R. Castle, Anne G. Lenhert, 2008 .

Determination of sulphur heterocycles in selected synfuels

Milton L. Lee, R. Pratap, R. Castle, 1984 .

Determination of sulfur heterocycles in coal liquids and shale oils

Milton L. Lee, R. Castle, M. Iwao, 1981 .

Mesogenic polysiloxane stationary phase for high-resolution gas chromatography of isomeric polycyclic aromatic compounds

Milton L. Lee, R. Pratap, R. Castle, 1982 .

Synthesis of anthra[b]thiophenes and benzo[b]naphtho[d]thiophenes

Milton L. Lee, R. Castle, Y. Tominaga, 1981 .

Pyridylalkylthiols and derivatives

R. Castle, S. Furukawa, F. V. Wells, 1978 .

The synthesis of dinaphthothiophenes

Milton L. Lee, R. Castle, Y. Tominaga, 1983 .

Assignment of the 1H- and 13C-NMR spectra of phenanthro[1,2-b]thiophene through the concerted application of two-dimensional NMR spectroscopic techniques

Milton L. Lee, G. Martin, M. R. Willcott, 1983 .

Combined application of auto-correlated (COSY) and homonuclear J-resolved two-dimensional nmr spectra for the assignment of congested, non-first order spectra of polycyclic aromatic systems: assignment of the 1H-nmr spectrum of benzo[2,3]phenanthro[4,5-bcd]thiophene and an investigation of long rang

Milton L. Lee, R. Gampe, G. Martin, 1984 .

Sulphur heterocycles in coal-derived products: Relation between structure and abundance

Milton L. Lee, M. Nishioka, R. Castle, 1986 .

Determination of aminodibenzothiophenes in a coal liquid

Milton L. Lee, Philip A. Smith, R. M. Campbell, 1985 .

Capillary column gas chromatography of sulfur heterocycles in heavy oils and tars using a biphenylpolysiloxane stationary phase

Milton L. Lee, J. Bradshaw, M. Nishioka, 1985 .

Complete assignment of the 1H and 13C NMR Spectra of 11,12‐Dimethoxy[1]benzothieno[3,2‐a]‐4,7‐phenanthroline and its 8‐Chloro Analogue: Concerted Use of Two‐Dimensional NMR Techniques

R. Castle, M. Musmar, 1991 .

Benzannelated analogs of phenanthro[1,2-b]- and [2,1-b]thiophene: Synthesis and structural characterization by two-dimensional NMR and X-ray techniques

V. Lynch, Milton L. Lee, G. Martin, 1986 .

Two-dimensional relayed coherence transfer experiments as a means of subgrouping protonated carbon resonances of complex polynuclear heteroaromatics on the basis of vicinal proton-proton connectivities

Milton L. Lee, G. Martin, R. Castle, 1984 .

The crystal and molecular structure of 9-methylphenanthro[4,3-a]dibenzothiophene

V. Lynch, Milton L. Lee, G. Martin, 1986 .

Benzo[b]phenanthro[4,3‐d]thiophene: Spectral assignment by two‐dimensional NMR methods and tertiary structure determination

Milton L. Lee, R. Hurd, A. Zektzer, 1986 .

New pulse sequence for long‐range two‐dimesional heteronuclear NMR chemical shift correlation

A. Zektzer, Gary E Martin, M. Quast, 1986 .

Long range optimized two-dimensional proton-carbon chemical shift correlation. Application in the total assignment of the 1H- and 13C-NMR spectra of 9-methylphenanthro[4,3-a]dibenzothiophene

Milton L. Lee, G. Martin, E. Ezell, 1985 .

Assignment of the 13C-NMR spectrum of phenanthro[4,3-a]dibenzothiophene through the utilization of two-dimensional relayed coherence transfer and double quantum coherence spectroscopy

Milton L. Lee, R. Gampe, R. Hurd, 1985 .

1‐Methylphenanthro[3,4‐b]thiophene: Determination of the tertiary structure in solution and in the crystalline state by NMR spectroscopy and X‐ray diffraction

V. Lynch, Milton L. Lee, R. Gampe, 1985 .

Decoupling modulations due to one-bond heteronuclear spin couplings in long-range heteronuclear chemical-shift correlation spectra

A. Zektzer, G. Martin, R. Castle, 1987 .

The synthesis of benzo[b]phenanthro[d]thiophenes and anthra[b]benzo[d]thiophenes

Milton L. Lee, R. Castle, Y. Tominaga, 1983 .

QUINO(1,2‐C)QUINAZOLINES. I. SYNTHESIS OF QUINO(1,2‐C)QUINAZOLINIUM DERIVATIVES AND THE RELATED INDAZOLO(2,3‐A)QUINOLINE DERIVATIVES AS ANALOGS OF THE ANTITUMOR BENZO(C)PHENANTHRIDINE ALKALOIDS

S. Phillips, R. Castle, 1980 .

Optical crystallographic properties of organic compounds: IV. 2-Phenyl-1,2,3,2H-triazol-4-ylcarbinol and its oxidation products

R. Castle, 1953 .

The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 23 . Naphtho[2′,1′:4,5]thieno‐[2,3‐c]naphtho[2,1‐f]quinoline

Jiann-Kuan Luo, R. Castle, M. Cabal, 2001 .

The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 22 Dibenzo[f,h]benzothieno[2,3-c]quinoline, dibenzo[f,h]benzothieno[2,3-c][1,2,4]triazolo[4,3-a]quinoline and dibenzo[f,h]naphtho[2′,1′:4,5]thieno[2,3-c]quinoline†‡§

Jiann-Kuan Luo, R. Castle, M. Cabal, 2000 .

The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 21. Naphtho[2′,1′:4,5]thieno[2,3-c]naphtho[1,2-f]-quinoline, naphtho[2′,1′:4,5]thieno[2,3-c]naphtho[1,2-f][1,2,4]-triazolo[4,3-a]quinoline and naphtho[2′,1′:4,5]thieno[2,3-c

Jiann-Kuan Luo, R. Castle, R. F. Federspiel, 2000 .

The synthesis of novel polycyclic heterocyclic ring systemsviaphotocyclization.20. Benzo[h]thieno[3′,2′:4,5]thieno[2,3-c]-quinoline, benzo[f]thieno[3′,2′:4,5]thieno[2,3-c]quinoline, benzo[f]thieno[3′,2′:4,5]thieno[2,3-c]tetrazolo[1,5-a]quinoline and benzo[f]thieno[3′,2′:4,5]thieno[2,3-c][1,2,4]triaz

Jiann-Kuan Luo, R. Castle, R. F. Federspiel, 1998 .

The synthesis of novel polycyclic heterocyclic ring systems. 3. Synthesis and NMR spectroscopy of 15‐chloro[1]benzo‐thieno[2″,3″:3′,4′]naphtho[1′,2′:4,5]thieno[2,3‐c]quinoline

T. Hirota, K. Sasaki, Jiann-Kuan Luo, 1997 .

The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 19†‡. Thieno[3′,2′:4,5]thieno[2,3-c]-naphtho[1,2-f]quinoline, thieno[3′,2′:4,5]thieno[2,3-c]naphtho-[1,2-f][1,2,4]triazolo[4,3-a]quinoline and thieno[3′,2′:4,5]-thieno[2,3-c]naphtho[1,2-f]tetrazolo[1,5-a]quinoline

Jiann-Kuan Luo, R. Castle, R. F. Federspiel, 1997 .

The synthesis of novel polycyclic heterocyclic ring system via photocyclization. 18. Benzo[h]naphtho-[1′,2′:4,5]thieno[2,3-c]quinoline and benzo[h]naphtho-[1′,2′:4,5]thieno[2,3-c] [1,2,4]triazolo[4,3-a]quinoline†‡§

Jiann-Kuan Luo, R. Castle, R. F. Federspiel, 1996 .

Synthesis and total 1H-NMR assignment of naphtho[1′,2′:4,5]thieno[2,3-c][1,10]phenanthroline and naphtho[2′,1′:4,5]-thieno[2,3-c] [1,10]phenanthroline

R. Castle, L. Castle, A. P. Halverson, 1996 .

The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 17. Thieno[3′,2′:4,5]thieno[2,3‐c]naphtho‐[2,1‐f]quinoline and thieno[3′,2′:4,5]thieno[2,3‐c]‐naphtho[1,2‐g]quinoline

Jiann-Kuan Luo, R. Castle, L. Castle, 1996 .

Synthesis of two novel ring systems via photocyclization: Thieno[2′,3′:4,5]thieno[2,3-c][1,10]phenanthroline and thieno[3′,2′:4,5]thieno[2,3-c][1,10]phenanthroline

R. Castle, L. Castle, A. P. Halverson, 1996 .

The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 16. [1]benzothieno[2′,3′:4,5]thieno[2,3-c]quinoline and [1]benzothieno[2′,3′:4,5]thieno[2,3-c]naphtho[1,2-f]quinoline†

Jiann-Kuan Luo, R. Castle, R. F. Federspiel, 1995 .

The Synthesis of Novel Polycyclic Heterocyclic Ring Systems via Photocyclization. 12. Benzo[h]naphtho‐[2′,1′:4,5]thieno[2,3‐c]quinoline and benzo[f]‐naphtho[2′,1′:4,5]thieno[2,3‐c]quinoline

S. Castle, Jiann-Kuan Luo, R. Castle, 1993 .

Total assignment of the 1H and 13C NMR spectra of benzo[f][1]benzothieno[2,3-c]quinoline by inverse-detected two-dimensional NMR techniques

J. Shockcor, A. Cherif, G. Martin, 1991 .

A review of the chemistry of the antitumor benzo[c]phenanthridine alkaloids nitidine and fagaronine and of the related antitumor alkaloid coralyne

S. Phillips, R. Castle, 1981 .

Synthesis of polycyclic pyridazinediones as chemiluminescent compounds

K. Sasaki, R. Castle, Y. Tominaga, 1998 .

The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 7. [1]Benzothieno[2,3‐c]naphtho[2,1‐h]quinoline and [1]benzothieno[2,3‐c]naphtho[2,1‐h][1,2,4]triazolo[4,3‐a]quinoline

K. Sasaki, R. Castle, 1992 .

The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 3 . 12-Methylbenzo[h][1]benzothieno[2,3-c][1,6]naphthyridine†

R. Castle, M. Musmar, 1991 .

Synthesis of alkylaminoethanethiolsulfuric acids substituted with heterocyclic moieties

R. Castle, G. Singerman, R. Kimura, 1966 .

Condensed pyridazines including cinnolines and phthalazines

R. Castle, 1973 .

The synthesis of pyrimido[4,5-c] pyridazines and pyrido[2,3-d]pyrimidines related to toxoflavin and fervenulin

P. D. Cook, R. Castle, Bernadette Kuo Billings, 1975 .

Pyrimidinylalkylthiols, furo[2,3-d]pyrimidines and derivatives

M. Takada, R. Castle, S. Furukawa, 1981 .

Cinnoline chemistry. IX. 5-, 6-, 7- and 8-halogen substituted 4-mercaptocinnolines and related compounds †

R. Castle, R. R. Shoup, K. Adachi, 1964 .

The synthesis of dimethoxy[1]benzothieno[2,3-c]quinolines

R. Castle, Sudabeh Pakray, 1986 .

The synthesis of benzo[c] cinnoline dioxides

R. Castle, F. Kempter, 2009 .

The synthesis of benzo[c]cinnoline 5,6‐dioxides and related compounds

R. Castle, F. Kempter, 1969 .

The synthesis of some monomethylanthraceneamines

Milton L. Lee, R. Castle, H. Kudo, 1991 .

2.17 – Other Diazinodiazines

R. Castle, 1984 .

Topics in heterocyclic chemistry

R. Castle, 1969 .

Cinnoline chemistry. XII. The synthesis of 6-fluoro-4-methylcinnoline and other cinnolines as potential antitumor agents†

R. Castle, K. Adachi, William D. Guither, 1965 .

Synthesis of Diaryloxazoles1-3

R. Castle, D. L. Aldous, J. Riebsomer, 1960 .

The synthesis of some pyrrolo[1,5‐b:2,3‐c′]dipyridazines

P. D. Cook, R. Castle, F. V. Wells, 1976 .

The synthesis of pyrimido[4,5‐c]pyridazines and pyrimido[5,4‐c]pyridazines

R. Castle, T. Nakagome, Hirotaka Murakami, 1968 .

Pyridazines. II. The synthesis of amino-, azido- and nitraminopyridazines, tetrazolo[1,5-b] pyridazines and related nitrogen heterocycles

R. Castle, D. G. Clark, William D. Guither, 1965 .

Polycyclic pyridazines. II [3]. Synthesis of pyrazolo[4′,3′:5,6]pyrido[2,3-d]pyrid-azine derivatives from dimethyl pyrazolo[3,4-d]pyrid-azine-5,6-dicarboxylates as the key intermediates

Jiann-Kuan Luo, R. Castle, Y. Tominaga, 1993 .

The synthesis of substituted pyrazino[2,3-d]-1,2,4-triazolo[4,3-b]pyridazines

R. Castle, R. Thompson, 1981 .

The synthesis of imidazo[4,5-c] - and v-triazolo[4,5-c] pyridazines

R. Castle, Hirotaka Murakami, 1967 .

The synthesis of v‐triazolo[4,5‐c]pyridazines, a new heterocyclic ring system as potential purine antagonists

R. Castle, G. Gerhardt, 1964 .

s‐Triazolo[4,3‐b]pyridazines and imidazo[4,5‐c]pyridazines

R. Castle, T. Kuraishi, 1966 .

1-(2-Mercaptoethyl)phthalazines and related compounds

S. Takano, R. Castle, 1968 .

A one-step synthesis of 1,4-diaminophthalazine from phthalonitrile

R. Castle, L. DiStefano, 1968 .

Cinnoline Chemistry. VII. 4-Cinnolinecarboxaldehyde1,2

R. Castle, M. Onda, 1961 .

CINNOLINE CHEMISTRY. XIII. 4-AZIRIDINOCINNOLINES

T. Yamazaki, R. Castle, R. E. Draper, 1978 .

Pyrrolopyridazines. II. Synthesis of the novel pyrrolo[3,2-c]pyridazine ring system †

P. D. Cook, R. Castle, 1973 .

Pyrrolopyridazines. 1. Synthesis and reactivity of pyrrolo[2,3-d]pyridazine 5-oxides†

P. D. Cook, R. Castle, 1973 .

Identification of Some Barbiturates

R. Castle, C. Poe, 1944 .

Synthesis of 6-aminobenzo[b]naphtho[2,1-d]thiophene

R. Castle, Y. Tominaga, L. Castle, 1993 .

The reaction of phosphorus pentasulfide with halogen-substituted nitrogen heterocycles

R. Castle, C. Weber, M. Malm, 1966 .

Cinnoline chemistry. XI. The ultraviolet spectra of halogen substituted 4‐hydroxy‐ and 4‐mercaptocinnolines

R. Castle, R. R. Shoup, 1964 .

Cinnoline chemistry. XIV. 3-cyclohexylcinnolines†

R. Castle, I. Maeba, 1980 .

Imidazo[4,5‐d]pyridazines. IV. Synthesis of 4,7 disubstituted derivatives and 1‐benzyl‐2‐substituted thio derivatives

R. Castle, D. L. Aldous, G. Gerhardt, 1965 .

Imidazo[4,5-d]pyridazines. III. The Synthesis of 2-phenylimidazo [4,5-d]-pyridazines†

R. Castle, Miriam Malm and, 1964 .

The nucleophilic displacement of halogen in pyridazines with phosphorus pentasulfide

R. Castle, K. Kaji, 1962 .

Cinnoline Chemistry. I. Some Condensation Reactions of 4-Chlorocinnoline

F. H. Kruse, R. Castle, 1952 .

Total assignment of the 1H and 13C NMR spectra of phenanthro[9,10‐b]thiophene: Concerted use of two‐dimensional NMR techniques

A. Zektzer, G. Martin, R. Castle, 1989 .

Total assignment of the proton NMR spectrum of dinaphtho[1,2‐B:2′,3′‐d]thiophene

G. Martin, R. Castle, M. D. Johnston, 1988 .

The synthesis of substituted [1]benzothieno[2,3‐c]quinolines and their N‐methyl quaternary salts

Jiann-Kuan Luo, R. Castle, M. Musmar, 1991 .

The synthesis of difluoro[1]benzothieno[2,3-c]quinolines and their N-methyl quaternary salts

S. Castle, Jiann-Kuan Luo, R. Castle, 1990 .

The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 1. Thieno[3′,2′:4,5]thieno[2,3‐c]quinoline and thieno[2′,3′:4,5]thieno[2,3‐c]quinoline

Milton L. Lee, S. Castle, Jiann-Kuan Luo, 1988 .

The synthesis of dimethoxy- and trimethoxy[1]benzothieno[2,3-c]quinolines

R. Castle, J. Stuart, J. Mckenney, 1987 .

The Synthesis of Monomethoxy(1)benzothieno(2,3-c)quinolines.

P. Buckhaults, J. D. Mckenney, S. Castle, 1987 .

The synthesis of monomethoxynaphtho[1',2':4,5]thieno[2,3-c]quinolines

R. Castle, Sudabeh Pakray, 1987 .

Synthesis of the isomeric monomethyl derivatives of the novel naphtho[2′,1′:4,5]thieno[2,3‐c]quinoline ring system

Milton L. Lee, R. Castle, H. Kudo, 1985 .

Quino[1,2‐c]quinazolines. II. Synthesis of 12,13‐dihydro‐11bH‐quino‐[1,2‐c]quinazolines via the versatile intermediates 2‐(2‐amino‐4,5‐dimethoxyphenyl)‐6,7‐disubstituted‐1,2,3,4‐tetrahydroquinolines

S. Phillips, R. Castle, 1980 .

The synthesis of 3,5-dimethylpyrazol-1-yl-vl-v-triazolo[4,5-d]pyridazines and substituted 3,5-dimethylpyrazol-1 -ylimidazo[4,5-d]pyridazines

R. Castle, R. E. Draper, 1983 .

The synthesis of hydroxyphenylthiophenes

Milton L. Lee, R. Castle, Sudabeh Pakray, 1985 .

The reaction of methyl 3-amino-4-cyano-5-methylthiothiophene-2-carboxylate with dmad. A new synthesis of polyfunctionalized quinolines

Jiann-Kuan Luo, R. Castle, Y. Tominaga, 1994 .

Synthesis of 2,7-disubstituted-4,5,9,10-tetraazapyrenes

R. Castle, P. Hilbert, F. Kempter, 1969 .

Synthesis of benzo[4,5]phenaleno[1,9‐bc]thiophene and benzo[4,5]phenaleno[9,1–6c]thiophene

Milton L. Lee, R. Castle, Y. Tominaga, 1982 .

The polymorphism of sulfapyridine.

R. Castle, N. F. Witt, 1946, Journal of the American Chemical Society.

Pyridazine Aldehydes, Ketones, and Alcohols

R. Castle, Anne G. Lenhert, 2008 .

Syntheses of 1-, 2-, 3- and 4-acridinecarbaldehydes

Milton L. Lee, R. Castle, Kazufumi Takahashi, 1987 .

Chapter III. Halopyridazines

R. Castle, D. L. Aldous, 2008 .

Open-chain analogs of LSD. II. Synthesis of some 2-(3-indolylethyl)- and 2-(3-methyl-2-indolylethyl)piperidines.

R. Castle, C. W. Whittle, 1963, Journal of Pharmacy and Science.

Synthesis of Some 2-(3-Indolylethenyl)- and 2-(2-Pyrrylethenyl)-Pyridines and Hydrogenated Analogs

R. Castle, C. W. Whittle, 1959 .

Synthesis in the diazasteroid group VI. A synthesis of 2,3‐dimethoxy‐15‐methyl‐8,15‐diazaestra‐1,3,5(10)triene

M. Nagata, T. Yamazaki, R. Castle, 1977 .

The synthesis of ω-dialkylaminoalkylaminopyrazino[2,3-d]-, pyrido[2,3-d]-, imidazo[4,5-c]- and imidazo[4,5-d]pyridazines

R. Castle, N. R. Patel, W. Rich, 1968 .

1H and 13C spectral assignment of naphtho[2′,1′:5,6]‐naphtho[2′,1′:4,5]thieno[2,3‐c]quinoline using the IDR‐GHSQC‐TOCSY experiment

G. Martin, C. Hadden, Jiann-Kuan Luo, 2000 .

A Comparison of the hyphenated experiments GHMQC‐TOCSY and GHSQC‐TOCSY

G. Martin, C. Hadden, Jiann-Kuan Luo, 1999 .

Inverted and suppressed direct response HMQC-TOCSY spectra-A convenient method of spectral editing

T. Spitzer, G. Martin, R. Crouch, 1992 .

Synthesis in the diazasteroid group. V. Synthesis of the 9,14‐diazasteroid system

M. Nagata, T. Yamazaki, R. Castle, 1975 .

The synthesis and properties of pyridazino[4,3‐e] ‐as‐triazines and pyridazino[4,5‐e] ‐as‐triazines, two novel condensed pyridazine ring systems

R. Castle, D. K. Chesney, 1974 .

The synthesis of pyrazino[2,3‐d]pyridazine and some of its derivatives

R. Castle, N. R. Patel, 1966 .

The synthesis of imidazo[4,5-c]-, s-triazolo[4,3-b]-, and tetrazolo[1,5-b]pyridazines

R. Castle, T. Kuraishi, 1964 .

Response-intensity modulation in long-range heteronuclear two-dimensional NMR chemical-shift correlation

A. Zektzer, G. Martin, M. Quast, 1987 .

Long range heteronuclear chemical shift correlation with one bond modulation decoupling: phenanthro[1,2-b]thiophene

G. Martin, R. Castle, D. K. Kruger, 1988 .

The synthesis of [1]benzothieno[2,3‐c]quinolines, [1]benzothieno[2,3‐c][1,2,4]triazolo[4,3‐a]quinoline, and [1]benzothieno[2,3‐c]tetrazolo[1,5‐a]quinoline

R. Castle, J. Mckenney, 1987 .

THE SYNTHESIS OF SOME SUBSTITUTED BENZYL IODIDES1

G. Daub, R. Castle, 1954 .

The crystal structure of 5‐amino‐6‐chloro‐4‐nitro‐2‐(β‐D‐ribofuranosyl)‐2H‐pyridazin‐3‐one

S. Larson, N. K. Dalley, S. H. Simonsen, 1981 .

SYNTHESIS OF ANALOGS OF THE 2,3,6,‐TRIAZAPHENOTHIAZINE RING SYSTEM

R. Castle, C. O. Okafor, 1983 .

Unequivocal synthesis of 2,3,6-triazaphenothiazine and two new tetraazaphenothiazine heterocycles †

R. Castle, C. O. Okafor, D. S. Wise, 1983 .

The synthesis of novel dipyridazinothiazine ring systems

R. Castle, D. S. Wise, 1974 .

Synthesis of analogues of the 2,3,6,-triazaphenothiazine ring system

R. Castle, C. O. Okafor, 1983 .

The synthesis of 3-(β-D-ribofuranosyl)imidazo[4,5-c] pyridazines

D. Halverson, R. Castle, 1974 .

Capillary Column Gas Chromatographic Resolution of Isomeric Polycyclic Aromatic Sulfur Heterocycles in a Coal Liquid

S. Wise, Milton L. Lee, R. Pratap, 1982 .

Isolation and determination of hydroxylated nitrogen heterocycles in a coal liquid

Milton L. Lee, R. M. Campbell, M. Nishioka, 1985 .

Microbial mutagenicity of 3- and 4-ring polycyclic aromatic sulfur heterocycles.

M. Lee, R. Castle, M. Iwao, 1983, Mutation research.

Synthesis of all of the monomethyl isomers of naphtho[2,1‐b]thiophene

Milton L. Lee, R. Castle, Y. Tominaga, 1983 .

The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 11. Synthesis and total assignment of the 1H and 13C NMR spectra of isomeric benzothienonaphthoquinolines using multiple inverse detected two‐dimensional NMR methods

A. Zektzer, J. Shockcor, G. Martin, 1993 .

The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 5. [1]Benzothieno[2,3-c]naphtho[2,1-f]-quinoline and [1]benzothieno[2,3-c]naphtho[1,2-g]quinoline†

Jiann-Kuan Luo, R. Castle, 1991 .

The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 2 . Benzo[h][1]benzothieno[2,3‐c]quinoline and benzo[h][1]benzothieno[2,3‐c]quinoline

Jiann-Kuan Luo, R. Castle, 1990 .

The synthesis of all of the monomethyl isomers of benzo[b]naphtho[1,2-d]thiophene

Milton L. Lee, R. Pratap, R. Castle, 1982 .

Synthesis of monoamino and monohydroxydibenzothiophenes

Milton L. Lee, R. Castle, H. Kudo, 1985 .

Determination and mutagenic activity of nitrogen-containing thiophenic compounds in coal-derived products

Milton L. Lee, Philip A. Smith, G. Booth, 1986 .

Determination of hydroxylated thiophenic compounds in a coal liquid

Milton L. Lee, M. Nishioka, R. Castle, 1985 .

Microbial mutagenicity of isomeric two-, three-, and four-ring amino polycyclic aromatic hydrocarbons.

M. Lee, D. Later, G. Booth, 1984, Environmental mutagenesis.

The ring opening of N-(1-phthalazyl)- and N-(4-quinazolyl)aziridines

S. Takano, R. Castle, 1968 .

Synthesis of Pyridazine Derivatives with Sulfur-Containing Substituent. II. A Novel Cyclization Furnishing the Concurrent Formation of 2,7-Dibenzyldipyridazo-[4,5-b : 4', 5'-e]-1,4-dithiin-1,6 (2H, 7H)-dione and 2,8-Dibenzyldipyridazo [4,5-b : 4', 5'-e]-1,4-dithiin-1,9 (2H, 8H)-dione. (1)

M. Kuzuya, R. Castle, K. Kaji, 1970 .

Notes. Quinoxalines. II. Basic Ethers from 2-Chloroquinoxaline

R. Castle, M. Onda, 1961 .

Condensed pyridazines. Part II. Synthesis of pyrido[2,3-C] pyridazines

R. Castle, I. Maeba, 1979 .

Photocyclization of aryl‐ and heteroaryl‐2‐propenoic acid derivatives. Synthesis of polycyclic heterocycles

R. Castle, Y. Tominaga, 1996 .

Condensed pyridazines. Part IV. Reductive cyclization of (Z)-methyl 3-(6-azido-3-chloro-1-methyl-4-oxo-1,4-dihydropyridazin-5-yl)-2-rnethylacrylatc (I) to pyrido[2,3-c] pyridazines and the acid-catalysed cyclization of I to a pyrano[2,3-d] pyridazine

R. Castle, K. Mori, I. Maeba, 1979 .

Condensed pyridazines. Part III. Rearrangement and ring cyclization during the thermolysis of (z)-methyl 3-(6-azido-3-chloro-1-methyl-4-oxo-1,4-dihydropyridazin-5-yl)-2-methylacrylate

R. Castle, I. Maeba, 1979 .

The synthesis of isomeric naphthylethylcarbazole derivatives as reference compounds in coal-derived products

Milton L. Lee, Jiann-Kuan Luo, R. Castle, 1989 .

Synthesis in the diazasteroid group. I. A new synthesis of 8,13-diaza-2,3-dimethoxygona-1,3,5(10)triene and its mercuric acetate oxidation†

M. Nagata, T. Yamazaki, R. Castle, 1972 .

Pyridazines. I. 4-Halo-5-hydrazino-3-pyridazone and its derivatives.

R. Castle, D. L. Aldous, W. M. Osner, 1963, Journal of pharmaceutical sciences.

Dipyridazo[4,5-b:4,5-e]-1,4-dithiins

R. Castle, D. S. Wise, K. Kaji, 1966 .

The preparation of Schiff bases from some sulfonamides and aromatic aldehydes.

R. Castle, 1951, Journal of the American Pharmaceutical Association. American Pharmaceutical Association.

Quinazolines I. ω-Tertiaryamino-α-(4-quinazolyl)-α-phenylalkanenitriles

R. Castle, M. Onda, 1962 .

Cinnoline Chemistry. VIII. α-(ω-Dialkylaminoalkyl)-α-phenyl-4-cinnolineacetonitriles and Related Compounds.

R. Castle, M. Onda, 1961 .

SYNTHESIS OF TRIPHENYLENO(B)THIOPHENES

Milton L. Lee, R. Pratap, R. Castle, 1981 .

Synthesis of phenanthro[b]thiophenes

Milton L. Lee, R. Castle, M. Iwao, 1980 .

Synthesis of phenaleno[1,9-bc]thiophene

Milton L. Lee, R. Castle, Y. Tominaga, 1981 .

Complete assignment of the 1h‐ and 13c‐nmr spectra of [1]benzothieno[2,3‐c]naphtho[1,2‐h]quinoline and [1]benzothieno[2,3‐c]naphtho[1,2‐h][1,2,4]triazolo[4,3‐a]quinoline. Concerted use of two‐dimensional nmr techniques

K. Sasaki, R. Castle, L. Castle, 1994 .

The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 13. Dibenzo-[f,h]phenanthro[9′,10′:4,5]thieno[2,3-c]quinoline†‡§

Jiann-Kuan Luo, R. Castle, 1993 .

The HMQC-NOESY experiment without decoupling during acquisition for detection of nOe between pseudo-equivalent protons

R. Castle, M. D. Johnston, L. Castle, 1992 .

The synthesis of two novel fused thienopyridopyridazines

Jiann-Kuan Luo, R. Castle, 1991 .

The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 9. Phenanthro[9′,10′:4,5]thieno[2,3‐c]quinoline, benzo[f]phenanthro[9′,10′:4,5]thieno[2,3‐c]quinoline, and benzo[h]‐phenanthro[9′,10′:4,5]thieno[2,3‐c]quinoline

R. Castle, C. Camoutsis, 1993 .

Assignments of the 1H and 13C NMR spectra of pseudo-symmetric heterocyles using the HMQC-TOCSY experiment to differentiate overlapping spin systems

R. Castle, M. D. Johnston, L. Castle, 1992 .

The Synthesis of Novel Polycyclic Heterocyclic Ring Systems via Photocyclization. Part 13. Dibenzo(f,h)phenanthro(9′,10′:4,5)thieno(2, 3-c)quinoline (VIII).

R. Castle, J.‐K. Luo, 1994 .

The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 14. 14‐methylbenzo[h]naphtho‐[1′2′:4,5]thieno[2,3‐c][1,6]naphthyridine

R. Castle, M. Musmar, 1994 .

The diels‐alder reaction of 5‐aminopyrazole‐4‐carbonitrile with dmad: Synthesis and structural determination of dimethyl 2‐(p‐toluenesulfonylamino)‐3‐cyano‐4‐imino‐1,4‐dihydropyridine‐5,6‐dicarboxylate

N. K. Dalley, R. Castle, Y. Tominaga, 1993 .

The Synthesis of Two Novel Fused Thienopyridopyridazines.

Jiann-Kuan Luo, R. Castle, 1991 .

Disentangling proton connectivity networks in highly overlapped 1H-NMR spectra of polynuclear aromatics using 1D-HOHAHA

J. Shockcor, A. Cherif, G. Martin, 1990 .

Complete Assignment of the 1H and 13C NMR Spectra of (1)Benzothieno(2, 3‐c)naphtho(1,2‐h)quinoline (I) and (1)Benzothieno(2,3‐c)naphtho(1,2‐h) (1,2,4)triazolo(4,3‐a)quinoline (II). Concerted Use of Two‐Dimensional NMR Techniques.

K. Sasaki, R. Castle, L. Castle, 1995 .

The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 10. Synthesis and structure determination of naphtho[1′,2′:4,5]thieno[3,2‐a]‐4,7‐phenanthroline

N. K. Dalley, A. Zektzer, R. Castle, 1993 .

Mutagenic activity of methyl-substituted tri- and tetracyclic aromatic sulfur heterocycles.

M. Lee, R. Pratap, G. Booth, 1984, Mutation research.

Synthesis of benzo[3,2]phenanthro[4,5‐bcd]thiophene and chryseno[4,5‐bcd]thiophene

Milton L. Lee, R. Castle, M. Iwao, 1981 .

Synthesis of bridged heteroaromatic compounds as reference standards for coal degradation products

Milton L. Lee, Jiann-Kuan Luo, R. Castle, 2009 .

The synthesis of polycyclic thiophenes derived from phenanthrene intermediates

Milton L. Lee, R. Castle, M. Tedjamulia, 1984 .

Synthesis of the monomethyl isomers of naphtho[1',2':4,5]thieno[2,3-c]quinoline

Milton L. Lee, R. Castle, H. Kudo, 1984 .

The synthesis of phenanthrodibenzothiophenes

Milton L. Lee, R. Castle, M. Tedjamulia, 1984 .

The synthesis of naphtho[1,2-b]thiophene and all of the eight isomers of monomethylnaphtho[1,2-b]thiophene

Milton L. Lee, R. Castle, Y. Tominaga, 1984 .

Angular polycyclic thiophenes containing two thiophene rings. I

Milton L. Lee, R. Castle, M. Tedjamulia, 1984 .

The synthesis of the monomethylbenzo[2,3]phenanthro-[4,5-bcd]thiophenes

Milton L. Lee, R. Castle, Y. Tominaga, 1983 .

The synthesis of all of the dimethyldibenzothiophenes and monoethyldibenzothiophenes

Milton L. Lee, R. Castle, Y. Tominaga, 1983 .

The synthesis of phenanthro[4,5-bcd]thiophene and the four monomethylphenanthro[4,5-bcd]thiophenes

Milton L. Lee, R. Castle, Y. Tominaga, 1983 .

The synthesis of the monomethyl isomers of benzo[b]naphth[2,1‐d]thiophene

Milton L. Lee, R. Pratap, R. Castle, 1982 .

The synthesis of the monomethyl derivatives of benzo[b]naphtho[2,3‐d]thiophene

Milton L. Lee, R. Pratap, R. Castle, 1982 .

Synthesis of benzo[b]phenanthro[d]thiophenes

Milton L. Lee, R. Pratap, R. Castle, 1982 .

SYNTHESIS OF BENZO(1,2)PHENALENO(BC)THIOPHENES

Milton L. Lee, R. Pratap, R. Castle, 1982 .

Synthesis of pyreno[b]thiophenes

Milton L. Lee, R. Pratap, R. Castle, 1981 .

Photocyclization of 2-[1]benzothien-3-yl)-3-phenylpropenoic acids

R. Castle, Y. Tominaga, L. Castle, 1996 .

Photocyclization of 2-(naphth-1-yl)-3-(thien-2-yl)propenoic acid and the total assignment of the 1H- and 13C-NMR spectra of the product

R. Castle, L. Castle, Yoshinori Tominagaxs, 1996 .

The synthesis of novel polycyclic heterocyclic ring systems. 2. Naphmo[2,1‐b:4,3‐g]bisbenzo[b]thiophene

T. Hirota, K. Sasaki, Jiann-Kuan Luo, 1996 .

Syntheses of thiopyrone and pyrone derivatives by photocyclization reaction of 3-aryl-2-( Benzothien-3-yl)propenoic acids†‡

T. Hirota, K. Sasaki, R. Castle, 2000 .

The synthesis of possible degradation products of nicotine.

A. Burger, R. Castle, 1954, Journal of the American Pharmaceutical Association. American Pharmaceutical Association.

Mutagenicities of hydroxy-substituted carbazoles and dibenzothiophenes using the CHO/HGPRT assay

Milton L. Lee, G. Booth, R. Castle, 1991 .

Synthesis in the diazasteroid group. III . Syntheses of the 8,16- and 8,17-diazasteroid systems†

M. Nagata, T. Yamazaki, R. Castle, 1974 .

The optical crystallographic properties of some sulfonamides and their derivatives.

R. Castle, N. F. Witt, C. Poe, 1949, Journal of the American Chemical Society.

Comparative developmental dermal toxicity and mutagenicity of carbazole and benzo[a]carbazole

G. B. Schaalje, G. Booth, R. Castle, 1997 .

Synthesis of diazasteroids II. Synthesis of 8,11-diaza-2,3-dimethoxygona-1, 3,5 (10), 9 (11)-tetraene†‡§

M. Nagata, T. Yamazaki, R. Castle, 1973 .

A Reinvestigatton of the 13C-NMR Chemical Shift Assignments of Fluoranthene

G. Martin, R. Castle, M. D. Johnston, 1988 .

Assignment of the 1H‐ and 13C‐NMR spectra of congested helicenes using two‐dimensional NMR methods: Phenanthro[3′,4′:3,4]phenanthro[2,1‐b]thiophene

A. Zektzer, G. Martin, R. Castle, 1986 .

The Synthesis of Pyridazines, Tetrazines and Related Nitrogen Heterocycles as Potential Explosive Agents. Final Report

R. Castle, 1966 .

Lectures in heterocyclic chemistry

R. Castle, 1984 .

Optical crystallographic properties of organic compounds. III. Esters of gamma-hydroxybenzoic acid.

R. Castle, 1952, Journal of the American Pharmaceutical Association. American Pharmaceutical Association.

Optical crystallographic properties of organic compounds II. Aliphatic dicarboxylic acids

R. Castle, 1951 .

Optical Crystallographic Properties of Organic Compounds. I. Barbituric Acid Derivatives

R. Castle, 1949 .