C. O. Okafor

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Synthesis, properties and uses of angular phenoxazines

C. O. Okafor, 1986 .

Chemistry of the phenoxathiins and isosterically related heterocycles. XXVII. Two‐dimensional J‐resolved spectra of 1,4,9‐triazaphenoxathiin: The influence of frequency of the position and intensity of resonances due to strong coupling

J. Ford, R. Gampe, G. Martin, 1983 .

STUDIES IN THE HETEROCYCLIC SERIES. XII. THE CHEMISTRY AND APPLICATIONS OF AZA AND THIA ANALOGS OF PHENOXAZINE AND RELATED COMPOUNDS

C. O. Okafor, 1977 .

Studies in the heterocyclic series. 22. New chemistry of azaphenothiazine and its precursors

C. O. Okafor, 1982 .

Studies in the heterocyclic series XVII. A new type of triazaphenothiazine heterocycle

C. O. Okafor, 1980 .

Heterocyclic series. VII. Use of Kaufmann's reaction as a route to o-aminomercaptopyridines

C. O. Okafor, 1973 .

STUDIES IN THE HETEROCYCLIC SERIES. IX. SYNTHESIS OF HETEROCYCLIC THIOLS

C. O. Okafor, 1976 .

Heterocyclic series. VIII. First triazaphenothiazine ring

C. O. Okafor, 1973 .

New synthesis of pyrrolobenzothiazine and pyrrolobenzoxazine ring systems

C. O. Okafor, M. U. Akpuaka, 1993 .

Studies in the heterocyclic series. XX. 1,4-Diazaphenoxazine and related compounds

C. O. Okafor, 1981 .

Heterocyclic series. X. 1,3,9-Triazaphenothiazine ring system, a new phenothiazine ring

C. O. Okafor, 1975 .

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 .

STUDIES IN THE HETEROCYCLIC SERIES. XXI. A NOVEL TETRAAZAANALOG OF PHENOTHIAZINE

C. O. Okafor, I. O. Uche, L. Akpanisi, 1981 .

The hetero cyclic series 21. a novel tetra aza analog of phenothiazine

C. O. Okafor, I. O. Uche, L. Akpanisi, 1981 .

Studies in the heterocyclic series. XIX. Synthesis of 1,4-diazaphenothiazine and its benzo derivatives

C. O. Okafor, 1981 .

Studies in the heterocyclic series. XVIII. Utilization of 4‐aminopyrimidine chemistry in 1,4,7,9‐tetraazabenzo[b]phenothiazine synthesis

C. O. Okafor, 1980 .

STUDIES IN THE HETEROCYCLIC SERIES. XIV. THE CHEMISTRY AND BIOLOGICAL ACTIVITY OF NEW AZA- AND THIA-PHENOTHIAZINES, AND RELATED DIBENZOTHIAZEPINES

C. O. Okafor, 1978 .

A new triazaphenothiazine ring with tranquilizing activity

J. Buckley, M. Steenberg, C. O. Okafor, 1975 .

Heterocyclic series. II. 3,6-Diazaphenothiazine sulfoxides and other potential antiparasitic and pesticidal agents

C. O. Okafor, 1971 .

Heterocyclic series. I. A novel diazaphenothiazine system

C. O. Okafor, 1967 .

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

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

STUDIES IN THE HETEROCYCLIC SERIES. XIII. NEW CNS-DEPRESSANTS DERIVED FROM 1,9-DIAZAPHENOXAZINE AND TWO ISOMERIC TRIAZAPHENOTHIAZINE RING SYSTEMS

J. Buckley, M. Steenberg, C. O. Okafor, 1977 .

The chemistry and applications of angular phenothiazine derivatives

C. O. Okafor, 1986 .

Some pyrido [2,3-d] thiazole systems.

C. O. Okafor, 1967, Journal of medicinal chemistry.

Studies in the heterocyclic series. XV. Synthesis and reactions of the first triazaphenoxazine ring system

C. O. Okafor, 1979 .

STUDIES IN THE HETEROCYCLIC SERIES. XI. REACTIONS OF 2-AMINO-3-HYDROXYPYRIDINE WITH 2-CHLORO-3-NITROPYRIDINE

C. O. Okafor, 1976 .

Synthesis of dipyrido[3,2-b: 2′,3′-e][1,4] oxazine (1,9-diazapheno xazine)

C. O. Okafor, 1974 .

New non-linear polycyclic azaphenothiazine dyestuffs

U. Okoro, C. O. Okafor, 1991 .

New phenothiazine dyes and pigments

C. O. Okafor, 1985 .

Synthesis of new benzothiazinophenoxazine ring systems

C. O. Okafor, M. U. Akpuaka, Ihesinachi A. Eluwa, 1992 .

The first branched benzoxazinophenothiazine ring system and its aza-analogues

C. O. Okafor, 1988 .

The First Branched Benzoxazinophenothiazine Ring System and Its Aza-Analogues.

C. O. Okafor, 1988 .

A new synthesis of ‘three-branched’ diazaphenothiazine dyes

U. Okoro, C. O. Okafor, 1988 .

Vat dyes from three new heterocyclic ring systems

S. Okeke, C. O. Okafor, I. O. Okerulu, 1987 .

A new type of angular phenothiazine ring system

C. O. Okafor, 1986 .

Synthesis of New Benzothiazinophenoxazine Ring Systems.

C. O. Okafor, M. U. Akpuaka, Ihesinachi A. Eluwa, 1993 .

SYNTHESIS OF NEW DIAZA ANGULAR AND TETRAAZA COMPLEX PHENOTHIAZINE RINGS

B. Ezema, C. O. Okafor, C. G. Ezema, 2012 .