T. Okujima

发表

Organic semiconductors based on small molecules with thermally or photochemically removable groups.

H. Yamada, T. Okujima, N. Ono, 2008, Chemical communications.

Supramolecules Based on Porphyrins

H. Yamada, T. Okujima, N. Ono, 2008 .

Photocurrent generation by benzoporphyrin films prepared by a solution process

T. Okujima, N. Ono, Hiroko Yamada, 2007 .

Synthesis of Rigid π Organic Molecular Architectures and Their Applications in Single-Molecule Measurement

T. Okujima, H. Uno, T. Nakae, 2017 .

SYNTHESIS AND PROPERTIES OF AZULENE-SUBSTITUTED THIOPHENES, TERTHIOPHENES AND DITHIENOTHIOPHENES

H. Yamada, T. Okujima, N. Ono, 2012 .

Synthesis of azulene-substituted benzofurans and isocoumarins via intramolecular cyclization of 1-ethynylazulenes, and their structural and optical properties.

A. Ohta, T. Okujima, Shigeki Mori, 2018, Organic & biomolecular chemistry.

Tetrabenzodiazaporphyrin: the semiconducting hybrid of phthalocyanine and tetrabenzoporphyrin

H. Yamada, T. Okujima, N. Ono, 2011 .

Ultrafast intramolecular energy relaxation dynamics of benzoporphyrins: influence of fused benzo rings on singlet excited states.

Hiroki Uoyama, Dongho Kim, T. Okujima, 2011, The journal of physical chemistry. B.

Synthesis, crystal structures and spectroscopic characterizations of two difluoroboradiaza-s-indacene dyes

X. You, Yi-zhi Li, T. Okujima, 2007 .

Synthesis and spectroscopic characterization of meso-tetraarylporphyrins with fused phenanthrene rings

X. You, T. Okujima, N. Ono, 2006 .

Yellow NIR dye: π-fused bisbenzoBODIPYs with electron-withdrawing groups.

H. Yamada, T. Okujima, H. Uno, 2014, Organic & biomolecular chemistry.

Synthesis and properties of BCOD-fused trithiasapphyrin and trithiabenzosapphyrins

H. Yamada, T. Okujima, N. Ono, 2010 .

Highly pure synthesis, spectral assignments, and two-photon properties of cruciform porphyrin pentamers fused with benzene units.

Hiroki Uoyama, Dongho Kim, H. Yamada, 2010, Chemistry.

Synthesis of azulenophthalimides by phosphine-mediated annulation of 1,2-diformylazulenes with maleimides

A. Ohta, T. Okujima, Taku Shoji, 2019, Organic Chemistry Frontiers.

Application of MCD spectroscopy and TD-DFT to nonplanar core-modified tetrabenzoporphyrins: effect of reduced symmetry on nonplanar porphyrinoids.

Hiroki Uoyama, S. Ito, T. Okujima, 2008, Chemistry.

Thermal Behavior of Free-Base and Core-Modified Bicyclo[2.2.2]octadiene-Fused Porphyrins

Hiroki Uoyama, T. Okujima, N. Ono, 2008 .

Synthesis of the Soluble Precursors of Tetrabenzoporphyrin: Control of the Solubility and the Conversion Temperature

H. Yamada, T. Okujima, N. Ono, 2019, Bulletin of the Chemical Society of Japan.

Solution-processed anthradithiophene-PCBM p-n junction photovoltaic cells fabricated by using the photoprecursor method.

N. Aratani, H. Yamada, T. Okujima, 2013, Chemical communications.

A soluble bispentacenequinone precursor for creation of directly 6,6′-linked bispentacenes and a tetracyanobipentacenequinodimethane

N. Aratani, H. Yamada, T. Okujima, 2013 .

Synthesis of Pyrroles and Their Derivatives from Isocyanides

T. Okujima, N. Ono, 2012 .

Thiatriphyrin(2.1.1): a core-modified contracted porphyrin.

H. Yamada, T. Okujima, H. Uno, 2013, Angewandte Chemie.

π-Fused bis-BODIPY as a candidate for NIR dyes.

Hiroki Uoyama, H. Yamada, T. Okujima, 2012, Organic & biomolecular chemistry.

Synthesis and characterization of new platinum(II) and platinum(IV) triphyrin complexes.

H. Yamada, T. Okujima, H. Uno, 2013, Inorganic chemistry.

Synthesis and spectroscopic properties of ring-fused thiophene bridged push–pull dyes and their application in dye-sensitized solar cells

X. You, F. Kong, H. Yamada, 2012 .

Synthesis of 2-amino- and 2-arylazoazulenes via nucleophilic aromatic substitution of 2-chloroazulenes with amines and arylhydrazines.

A. Ohta, T. Okujima, Shigeki Mori, 2017, Organic & biomolecular chemistry.

Synthesis and Properties of Azulene-Substituted Donor–Acceptor Chromophores Connected by Arylamine Cores

T. Okujima, Taku Shoji, S. Ito, 2013 .

Synthesis of 2- and 6-thienylazulenes by palladium-catalyzed direct arylation of 2- and 6-haloazulenes with thiophene derivatives.

T. Okujima, Taku Shoji, S. Ito, 2015, Organic & biomolecular chemistry.

Pentacene precursors for solution-processed OFETs

Hiroki Uoyama, H. Yamada, T. Okujima, 2010 .

Synthesis of π-expanded O-chelated boron–dipyrromethene as an NIR dye

H. Yamada, T. Okujima, N. Ono, 2011 .

Benzene-fused bis(acenaphthoBODIPY)s, stable near-infrared-selective dyes

T. Okujima, H. Uno, T. Nakae, 2018, RSC advances.

Synthesis of 2-aminoazulene derivatives. Nucleophilic and palladium-catalyzed amination of 2-substituted azulene

T. Okujima, S. Ito, A. Tajiri, 2003 .

Synthesis of 6-Amino- and 6-Arylazoazulenes via Nucleophilic Aromatic Substitution and Their Reactivity and Properties.

A. Ohta, T. Okujima, Taku Shoji, 2019, The Journal of organic chemistry.

New synthesis of meso-free-[14]triphyrin(2.1.1) by McMurry coupling and its derivatization to Mn(I) and Re(I) complexes.

H. Yamada, T. Okujima, H. Uno, 2011, Chemical communications.

A facile one-pot synthesis of meso-aryl-substituted [14]triphyrin(2.1.1).

X. You, H. Yamada, T. Okujima, 2008, Journal of the American Chemical Society.

Synthesis of 4,7-Dihydro-2H-isoindole Derivatives via Diels-Alder Reaction of Tosylacetylene

H. Yamada, T. Okujima, N. Ono, 2006 .

Synthesis of π-expanded BODIPYs and their fluorescent properties in the visible–near–infrared region

H. Yamada, T. Okujima, N. Ono, 2010 .

First synthesis of a series of core-modified tetrabenzoporphyrins.

T. Okujima, N. Ono, H. Uno, 2004, Chemical communications.

Photo precursor for pentacene

M. Kikuchi, T. Ogawa, H. Yamada, 2005 .

Synthesis of extremely soluble precursors of tetrabenzoporphyrins

T. Okujima, N. Ono, Hiroko Yamada, 2008 .

Electrophilic ipso-Substitution and Some Unique Reaction Behavior of 1,3,6-Tri-tert-butylazulene

T. Okujima, Taku Shoji, S. Ito, 2009 .

Cyclo[8]isoindoles: ring-expanded and annelated porphyrinoids.

H. Yamada, T. Okujima, N. Ono, 2011, Angewandte Chemie.

THERMAL BEHAVIOR OF BICYCLO[2.2.2]OCTADIENE-INSTALLED PRECURSORS FOR 2H-ANTHRA[2,3-c]PYRROLES AND ANTHRA [2,3-c] THIOPHENE

Hiroki Uoyama, H. Yamada, T. Okujima, 2010 .

Synthesis, Properties, and Redox Behavior of Tris(1‐azulenyltetracyanobutadiene) and Tris[1‐azulenylbis(tetracyanobutadiene)] Chromophores Connected to a 1,3,5‐Tri(1‐azulenyl)benzene Core

T. Okujima, Taku Shoji, S. Ito, 2015 .

Synthesis of donor-acceptor chromophores by the [2 + 2] cycloaddition of arylethynyl-2H-cyclohepta[b]furan-2-ones with 7,7,8,8-tetracyanoquinodimethane.

T. Okujima, Taku Shoji, S. Ito, 2012, Organic & biomolecular chemistry.

Synthesis of redox-active, intramolecular charge-transfer chromophores by the [2+2] cycloaddition of ethynylated 2H-cyclohepta[b]furan-2-ones with tetracyanoethylene.

T. Okujima, Taku Shoji, S. Ito, 2011, Chemistry.

Synthesis and Properties of Bicyclo[2.2.2]octadiene- and Benzene-Fused Bis(thiaporphyrin)s

T. Okujima, H. Uno, T. Nakae, 2017 .

Diethyl N,N′-dimethylpyrrol[3,4-f]isoindole-1,7-dicarboxylate as a 14π-electronic aromatic compound with two azomethine-ylide moieties

T. Okujima, H. Uno, T. Nakae, 2017 .

Synthesis, Characterization, and Electronic Structures of Porphyrins Fused with Polycyclic Aromatic Ring Systems.

T. Nyokong, H. Yamada, T. Okujima, 2016, Chemistry.

Synthesis of cyclo[8]pyrrole–polyoxometalate double-decker complex

T. Okujima, H. Uno, T. Nakae, 2016 .

Template Synthesis of Decaphyrin without Meso-Bridges: Cyclo[10]pyrrole.

T. Okujima, H. Uno, T. Nakae, 2016, Journal of the American Chemical Society.

Face‐ and Regioselectivity in Electrophilic Phenylsulfenylation of 7‐tert‐Butoxybicyclo[2.2.1]hepta‐2,5‐dienes

T. Okujima, H. Uno, T. Nakae, 2014 .

Synthesis of NIR-emitting O-chelated BODIPYs fused with benzene and acenaphthylene

T. Okujima, H. Uno, T. Nakae, 2014 .

Synthesis and Molecular Structure of Cyclo[8](9,10-dihydro-9,10-anthraceno)pyrrole

H. Yamada, T. Okujima, H. Uno, 2014 .

Acenaphthylene-fused cyclo[8]pyrroles with intense near-IR-region absorption bands.

H. Yamada, T. Okujima, H. Uno, 2013, Chemistry.

Synthesis, structure and properties of ethyl naphth[2,3-f]isoindole-1-carboxylate

Hiroki Uoyama, T. Okujima, H. Uno, 2013 .

Retro-Diels-Alder approach to the synthesis of π-expanded azuliporphyrins and their porphyrinoid aromaticity.

H. Nakano, H. Yamada, T. Okujima, 2012, Chemistry.

Preparation, characterization, and cycloaddition reaction of the heterocumulenes attached directly to azulenes. An efficient strategy for the preparation of azulene-substituted heterocycles

T. Okujima, S. Ito, C. Kabuto, 2003 .

Synthesis, Properties and Redox Behavior of Ene–Diyne Scaffolds Bearing 1‐ and 2‐Azulenyl Groups at the Periphery

T. Okujima, Taku Shoji, S. Ito, 2013 .

Synthesis and [2+2] Cycloaddition with Tetracyanoethylene of Ene–Diyne Scaffolds Bearing Ferrocenes at the Periphery

T. Okujima, Taku Shoji, S. Ito, 2011 .

Towards the Preparation of Electrochromic Materials with Strong Absorption in the Near-Infrared Region: Synthesis and Redox Behavior of Azulene-Substituted Enediyne Scaffolds Connected by a 9,10-Anthracenediyl Spacer

T. Okujima, S. Ito, J. Kawakami, 2009 .

Efficient preparation of 2-azulenylboronate and Miyaura-Suzuki cross-coupling reaction with aryl bromides for easy access to poly(2-azulenyl)benzenes

T. Okujima, S. Ito, T. Murafuji, 2004 .

SYNTHESIS OF BIS-nAPHTHOPORPHYRINS

Hiroki Uoyama, H. Yamada, T. Okujima, 2012 .

Synthesis, properties, and redox behavior of tetracyanobutadiene and dicyanoquinodimethane chromophores bearing two azulenyl substituents.

T. Okujima, Taku Shoji, S. Ito, 2013, The Journal of organic chemistry.

Synthesis, properties, and ambipolar organic field-effect transistor performances of symmetrically cyanated pentacene and naphthacene as air-stable acene derivatives.

H. Yamada, T. Okujima, K. Nakayama, 2011, Organic letters.

Synthesis, Properties and Redox Behavior of Ferrocenyl-1,1,4,4-tetracyano-1,3-butadienes Connected by Arylamine and Azobenzene Spacers

T. Okujima, Taku Shoji, S. Ito, 2015 .

Synthesis of 2-azulenyl-1,1,4,4-tetracyano-3-ferrocenyl-1,3-butadienes by [2+2] cycloaddition of (ferrocenylethynyl)azulenes with tetracyanoethylene.

T. Okujima, Taku Shoji, S. Ito, 2013, Chemistry.

Synthesis of push-pull chromophores by the sequential [2 + 2] cycloaddition of 1-azulenylbutadiynes with tetracyanoethylene and tetrathiafulvalene.

T. Okujima, Taku Shoji, S. Ito, 2012, Organic & biomolecular chemistry.

Molecular Transformation to Pyrroles, Pentafulvenes, and Pyrrolopyridines via [2 + 2] Cycloaddition of Propargylamines with Tetracyanoethylene.

A. Ohta, T. Okujima, Shigeki Mori, 2019, Chemistry.

Synthesis of 2-Aminofurans by Sequential [2+2] Cycloaddition-Nucleophilic Addition of 2-Propyn-1-ols with Tetracyanoethylene and Amine-Induced Transformation into 6-Aminopentafulvenes.

A. Ohta, T. Okujima, Shigeki Mori, 2017, Chemistry.

Soluble precursors of 2,3-naphthalocyanine and phthalocyanine for use in thin film transistors.

H. Yamada, T. Okujima, N. Ono, 2008, Chemical communications.

Synthesis of pentacene-, tetracene- and anthracene bisimides using double-cyclization reaction mediated by bismuth(III) triflate.

H. Yamada, T. Okujima, Sadahiro Masuo, 2011, Chemical communications.

Protonation behavior of thiaporphyrin and thiabenzoporphyrin

T. Okujima, H. Uno, Shigeki Mori, 2017 .

One-pot Synthesis of a Rice-ball-shaped Cyclophane with syn-Diethanoanthracene-fused Dipyrrole and Hexafluorobenzene

T. Okujima, H. Uno, Shigeki Mori, 2017 .

FULL PAPER Synthesis, Properties and Redox Behavior of Tris[1- azulenyltetracyanobutadiene and 1- azulenylbis(tetracyanobutadiene)s] Connected with 1,3,5-Tri(1- azulenyl)benzene Core

T. Okujima, Taku Shoji, S. Ito, 2018 .

Effective synthesis of diiodinated picene and dibenzo[a,h]anthracene by AuCl-catalyzed double cyclization

H. Sakaguchi, T. Okujima, R. Ohnishi, 2012 .

Organic Thin-Film Transistor from a Pentacene Photoprecursor

T. Okujima, N. Ono, Hiroko Yamada, 2009 .

Synthesis and photochemical properties of α-diketoporphyrins as precursors for π-expanded porphyrins

K. Ohkubo, S. Fukuzumi, T. Okujima, 2010 .

Manipulable Metal Catalyst for Nanographene Synthesis.

I. Hamada, H. Sakaguchi, T. Okujima, 2020, Nano letters.

Effect of the orthoquinone moiety in 9,10-phenanthrenequinone on its ability to induce apoptosis in HCT-116 and HL-60 cells.

H. Yamada, T. Okujima, M. Ishikura, 2013, Bioorganic & medicinal chemistry letters.

MCD spectroscopy and TD-DFT calculations of low-symmetry acenaphthoporphyrins with dual fluorescence

T. Okujima, Hiroko Yamada, H. Uno, 2013 .

Synthesis of 2-Azulenyltetrathiafulvalenes by Palladium-Catalyzed Direct Arylation of 2-Chloroazulenes with Tetrathiafulvalene and Their Optical and Electrochemical Properties.

A. Ohta, T. Okujima, Taku Shoji, 2017, The Journal of organic chemistry.

Synthesis, Structure, and Photochemistry of 5,14‐Diketopentacene

H. Yamada, T. Okujima, H. Uno, 2012 .

Photochemical synthesis of tetraaryl-substituted pentacenes

T. Okujima, Hiroko Yamada, H. Uno, 2010 .

Synthesis of Azulene-Substituted Tetraarylpyrroles by Reaction of 1-Azulenyl Ketones with Benzoin and Ammonium Acetate

A. Ohta, T. Okujima, Taku Shoji, 2017 .

Synthesis of 1,2′-Biazulenes by Palladium-Catalyzed Unusual Homocoupling Reaction of 1-Haloazulenes in the Presence of Ferrocene

T. Okujima, Taku Shoji, S. Ito, 2016 .

Reaction of azulenes with 1-trifluoromethanesulfonylpyridinium trifluoromethanesulfonate (TPT) and synthesis of the parent azulene.

T. Okujima, S. Ito, A. Tajiri, 2003, Organic & biomolecular chemistry.

Molecular Transformation of 2‐Methylazulenes: An Efficient and Practical Synthesis of 2‐Formyl‐ and 2‐Ethynylazulenes

A. Ohta, T. Okujima, Shigeki Mori, 2018 .

Synthesis of 2,2′-Diamino-1,1′-biazulenes by the Copper-catalyzed Homocoupling Reaction of 2-Aminoazulenes

T. Okujima, Taku Shoji, S. Ito, 2014 .

Synthesis and Properties of 6-Methoxy- and 6-Dimethylamino-1-methylthio- and 1,3-Bis(methylthio)azulenes and Triflic Anhydride-Mediated Synthesis of Their Biaryl Derivatives.

T. Okujima, Taku Shoji, S. Ito, 2014 .

Preparation and Stille cross-coupling reaction of the first organotin reagents of azulenes. Easy access to poly(azulen-6-yl)benzene derivatives

T. Okujima, S. Ito, N. Morita, 2002 .

Preparation and Stille cross-coupling reaction of the first organotin reagents of azulenes. An efficient Pd(0)-catalyzed synthesis of 6-aryl- and biazulenes

T. Okujima, S. Ito, N. Morita, 2002 .

Synthesis, crystal structure, and photodynamics of π-expanded porphyrin-fullerene dyads synthesized by Diels-Alder reaction.

Atula S. D. Sandanayaka, K. Ohkubo, S. Fukuzumi, 2010, The journal of physical chemistry. B.

Synthesis of azuleno[2,1-b]thiophenes by cycloaddition of azulenylalkynes with elemental sulfur and their structural, optical and electrochemical properties

A. Ohta, T. Okujima, Shigeki Mori, 2019, Organic Chemistry Frontiers.

Synthesis, properties, and redox behavior of 1,1,4,4-tetracyano-2-ferrocenyl-1,3-butadienes connected by aryl, biaryl, and teraryl spacers.

T. Okujima, Taku Shoji, S. Ito, 2015, Chemistry.

Synthesis of 1,3-bis(tetracyano-2-azulenyl-3-butadienyl)azulenes by the [2+2] cycloaddition-retroelectrocyclization of 1,3-bis(azulenylethynyl)azulenes with tetracyanoethylene.

T. Okujima, Taku Shoji, S. Ito, 2014, Chemistry.

Synthesis and Redox Behavior of Bis(3‐methylthio‐1‐azulenyl)methyl Cations and Dications Connected by 2‐Thienyl and 2,5‐Thiophenediyl Spacers

T. Okujima, Taku Shoji, S. Ito, 2011 .

Synthesis and Aromaticity of Benzene-Fused Doubly N-Confused Porphyrins.

T. Okujima, H. Uno, Shigeki Mori, 2020, Chemistry.

Synthesis and Redox Properties of Pyrrole- and Azulene-Fused Azacoronene.

T. Okujima, H. Uno, Shigeki Mori, 2019, Organic letters.

Synthesis, Structures, and Properties of Core-Expanded Azacoronene Analogue: A Twisted π-System with Two N-Doped Heptagons.

T. Okujima, H. Uno, Shigeki Mori, 2018, Journal of the American Chemical Society.

Cyclo[9]pyrrole: Selective Synthesis of [34]Nonaphyrin(0.0.0.0.0.0.0.0.0).

T. Okujima, H. Uno, Shigeki Mori, 2021, Organic letters.

Synthesis, Structural and Optical Properties of Tetrabenzoporphyrin Complexes Bearing Four or Eight Peripheral Phenyl Groups

T. Okujima, H. Uno, T. Nakae, 2019, European Journal of Organic Chemistry.

Porphyrin molecular tweezers for fullerenes

Hiroki Uoyama, F. Tani, M. Kuramoto, 2011 .

Photochemical synthesis of pentacene and its derivatives.

M. Kikuchi, T. Ogawa, H. Yamada, 2005, Chemistry.

Oxidation Behavior of 1,3-Dihydrothieno[3,4-a]HPHAC

T. Okujima, H. Uno, Shigeki Mori, 2019, Bulletin of the Chemical Society of Japan.

Di(acenaphtho)BODIPYs and Dipyrrins as Dyes with Deep-Red To NIR Absorptions

T. Okujima, H. Uno, Shigeki Mori, 2019, Bulletin of the Chemical Society of Japan.

Synthesis of azulitriphyrin(2.1.1)

T. Okujima, H. Uno, Shigeki Mori, 2020 .

η5-Cyclopentadienyliron(II)-[14]triphyrin(2.1.1) sandwich compounds: synthesis, characterization, and stable redox interconversion.

K. Ohkubo, S. Fukuzumi, N. Aratani, 2013, Angewandte Chemie.

Synthesis and properties of boron complexes of [14]triphyrins(2.1.1).

N. Aratani, H. Yamada, T. Okujima, 2013, Chemical communications.

Synthesis of Non- or Antiaromatic Dicarbaamethyrin: [24]Diazulihexaphyrin(0.1.0.0.1.0).

T. Okujima, H. Uno, Shigeki Mori, 2021, Organic letters.

Development of Heterocycle-Substituted and Fused Azulenes in the Last Decade (2010–2020)

T. Okujima, Taku Shoji, S. Ito, 2020, International journal of molecular sciences.

First synthesis of dodecasubstituted porphycenes.

H. Yamada, T. Okujima, H. Uno, 2011, Chemistry.

Synthesis, structures, and optical and electrochemical properties of benzoporphycenes.

H. Yamada, T. Okujima, N. Ono, 2009, Chemistry.

A new synthesis of acenaphthobenzoporphyrin and fluoranthobenzoporphyrin

T. Okujima, N. Ono, H. Uno, 2006 .

Selective synthesis of 5-alkenyl-15-alkynyl-porphyrin and 5,15-dialkynyl-porphyrin by 2+2 acid-catalyzed condensation of dipyrrylmethane and TMS propynal

T. Okujima, N. Ono, Hiroko Yamada, 2008 .

Synthesis of 2,3-Dihydrobenzo[1,4]dithiin-Fused Porphyrins

H. Yamada, T. Okujima, N. Ono, 2010 .

Synthesis of a Porphyrin-Fused π-Electron System

T. Okujima, H. Uno, Shigeki Mori, 2015 .

Synthesis of hexagonal shape-persistent cyclophane with D2h symmetry

T. Okujima, H. Uno, Shigeki Mori, 2016 .

Synthesis and intramolecular pericyclization of 1-azulenyl thioketones.

T. Okujima, Taku Shoji, S. Ito, 2008, The Journal of organic chemistry.

Strain-induced skeletal rearrangement of a polycyclic aromatic hydrocarbon on a copper surface

H. Sakaguchi, T. Okujima, H. Uno, 2017, Nature Communications.

Absorption and Emission Properties of Acenaphthoporphyrins

H. Yamada, T. Okujima, N. Ono, 2009 .

Bisarylation of 1,1′,3,3′-Tetrahalo-2,2′-biazulene under Suzuki–Miyaura Cross-coupling Conditions

T. Okujima, H. Uno, T. Nakae, 2014 .

Synthesis, properties, and redox behavior of di(1-azulenyl)(2- and 3-thienyl)methyl cations and dications composed of two di(1-azulenyl)methylium units connected with 2,5-thiophenediyl and 2,5-thienothiophenediyl spacers.

T. Okujima, S. Ito, T. Asao, 2001, The Journal of organic chemistry.

Effective photochemical synthesis of an air-stable anthracene-based organic semiconductor from its diketone precursor

H. Yamada, T. Okujima, N. Ono, 2006 .

Synthesis and Properties of (3‐Phenyl‐1‐azulenyl)tetracyanobetadienes and Tris(aryltetracyanobetadiene)s Connected with 1,3,5‐Tri(1‐azulenyl)benzene Core

T. Okujima, Taku Shoji, S. Ito, 2016 .

A new synthesis of tetra(quinoxalino)tetraazaporphyrin by the retro Diels-Alder reaction of a soluble precursor

M. Kikuchi, H. Yamada, T. Okujima, 2006 .

Synthesis and characterization of tetraanthroporphyrins.

H. Yamada, T. Okujima, N. Ono, 2008, Organic letters.

Synthesis of Peripherally Annulated Phenanthroporphyrins.

T. Okujima, H. Uno, Shigeki Mori, 2023, Organic letters.

Synthesis, structures and properties of benzoporphycenes and naphthoporphycenes

Shigeki Mori, Hiroko Yamada, Daiki Kuzuhara, 2011 .

Synthesis and Properties of Functional π-Expanded Compounds Prepared by Thermal or Photochemical Conversion of the Precursors

H. Yamada, T. Okujima, H. Uno, 2011 .

Preparation of highly conjugated oligoaza-PAHs based on the oxidative intramolecular coupling of bicyclo〔2.2.2〕octadiene-fused pyrrole

Hiroki Uoyama, H. Yamada, T. Okujima, 2010 .

SYNTHESIS OF TETRABENZOPORPHYRINS FUSED WITH FLUORANTHENES

H. Yamada, T. Okujima, N. Ono, 2010 .

1-Aminoisoindole as a useful π-system elongation unit

Hiroki Uoyama, H. Yamada, T. Okujima, 2009 .

1,1-Ethylene-1H-azulenium ion and its alkyl substituted derivatives: Synthesis, characterization, and some reactions thereof

M. Oda, T. Kajioka, Takuya Uchiyama, 1999 .

Charging Up the Future by Organic Solar Cells

T. Okujima, 2019, Functional Materials.

SYNTHESIS OF MONO-, DI-AND TRIBENZOPORPHYRINS FROM THEIR SOLUBLE PRECURSORS

H. Yamada, T. Okujima, N. Ono, 2009 .

In situ preparation of highly fluorescent pyrene-dyes from non-luminous precursors upon photoirradiation.

H. Yamada, T. Okujima, H. Uno, 2013, Chemical communications.

FIRST SYNTHESIS OF 2-HETEROARYLAZULENES BY THE ELECTROPHILIC SUBSTITUTION OF AZULENE WITH TRIFLATE OF N-CONTAINING HETEROCYCLES

T. Okujima, Taku Shoji, N. Morita, 2012 .

Synthesis of Porphyrins Fused with Aromatic Rings

H. Yamada, T. Okujima, N. Ono, 2013 .

Synthesis of 2-Aryl- and 6-Heteroaryl-1,3-di(4-pyridyl)azulenes by Katritzky’s Pyridylation of 2-Aryl- and 6-Heteroarylazulenes

T. Okujima, Taku Shoji, M. Yasunami, 2014 .

Pyrrole-Fused Azacoronene Analog with Sulfur Embedded in the Outer Periphery.

T. Okujima, H. Uno, Shigeki Mori, 2023, The Journal of organic chemistry.

Strain-induced skeletal rearrangement of a polycyclic aromatic hydrocarbon on a copper surface

H. Sakaguchi, T. Okujima, H. Uno, 2017, Nature Communications.

Photochemical synthesis of naphthacene and its derivatives for irreversible photo-responsive fluorescent molecules

H. Yamada, T. Okujima, N. Ono, 2013 .

FET performance and substitution effect on 2,6-dithienylanthracene devices prepared by photoirradiation of their diketone precursors.

H. Yamada, T. Okujima, N. Ono, 2012, Chemical communications.

Radially π-Extended Pyrrole-Fused Azacoronene: A Series of Crystal Structures of HPHAC with Various Oxidation States.

T. Okujima, H. Uno, Shigeki Mori, 2021, The Journal of organic chemistry.

Synthesis and redox behavior of 1,3,5- and 1,2,4-tri(6-azulenyl)benzene derivatives

N. Harada, T. Okujima, K. Imafuku, 2001 .

Synthesis and redox behavior of azulene-substituted benzene derivatives and (eta(5)-cyclopentadienyl)[tetra- and di(6-azulenyl)cyclobutadiene]cobalt complexes.

N. Harada, T. Okujima, K. Imafuku, 2001, The Journal of organic chemistry.

Synthesis, Structures, and Properties of Core-Expanded Azacoronene Analogue: A Twisted π-System with Two N-Doped Heptagons

T. Okujima, H. Uno, Shigeki Mori, 2018, Journal of the American Chemical Society.

Synthesis, Reactivity, and Properties of Benz[a]azulenes via the [8 + 2] Cycloaddition of 2H-Cyclohepta[b]furan-2-ones with an Enamine.

R. Katoh, T. Okujima, Taku Shoji, 2022, The Journal of organic chemistry.

Synthesis of 2-Methyl-1-azulenyl Tetracyanobutadienes and Dicyanoquinodimethanes: Substituent Effect of 2-Methyl Moiety on the Azulene Ring toward the Optical and Electrochemical Properties.

A. Ohta, T. Okujima, Taku Shoji, 2018, The Journal of organic chemistry.

Synthesis of 1,6′-Bi- and 1,6′:3,6′′-Terazulenes from 1-Pyridyl- and 1,3-Di(pyridyl)azulenes by the Ziegler–Hafner Method

T. Okujima, Taku Shoji, Erika Shimomura, 2013 .

Organic semiconductors based on small molecules with thermally or photochemically removable groups.

H. Yamada, T. Okujima, N. Ono, 2008, Chemical communications.

Synthesis of pentacene-, tetracene- and anthracene bisimides using double-cyclization reaction mediated by bismuth(III) triflate.

H. Yamada, T. Okujima, Sadahiro Masuo, 2011, Chemical communications.

π-Fused bis-BODIPY as a candidate for NIR dyes.

Hiroki Uoyama, H. Yamada, T. Okujima, 2012, Organic & biomolecular chemistry.

Application of MCD spectroscopy and TD-DFT to nonplanar core-modified tetrabenzoporphyrins: effect of reduced symmetry on nonplanar porphyrinoids.

Hiroki Uoyama, S. Ito, T. Okujima, 2008, Chemistry.

First synthesis of dodecasubstituted porphycenes.

H. Yamada, T. Okujima, H. Uno, 2011, Chemistry.

A facile one-pot synthesis of meso-aryl-substituted [14]triphyrin(2.1.1).

X. You, H. Yamada, T. Okujima, 2008, Journal of the American Chemical Society.