Author

Tadashi Okuyama

Observed names: TADASHI OKUYAMA, Tadashi OKUYAMA, Tadashi. Okuyama

Observed institutions: Leiden University, Mie University, University of Hyogo, Kyoto University, Himeji University, University of Toyama, Nagoya University Research Center for Materials Science, The Institute of Scientific and Industrial Research, The University of Osaka, Nagoya University, Hyogo University, Tokushima University, The University of Osaka

OpenAlex ID: A5110279859

Solvolysis of Cyclohexenyliodonium Salt, a New Precursor for the Vinyl Cation: Remarkable Nucleofugality of the Phenyliodonio Group and Evidence for Internal Return from an Intimate Ion-Molecule Pair

1995 · Tadashi Okuyama, Tomoki Takino, et al. · Journal of the American Chemical Society · 296

Solvolysis of Vinyl Iodonium Salts. New Insights into Vinyl Cation Intermediates

2001 · Tadashi Okuyama · Accounts of Chemical Research · 138

Enantiodifferentiating tetrahydrofuranylation of but-3-enyl carboxylates using optically active hypervalent iodine(III) reagents via a 1,3-dioxan-2-yl cation intermediate

2007 · Morifumi Fujita, Sakuro Okuno, et al. · Tetrahedron Letters · 112

In-Plane Vinylic SN2 Substitution and Intramolecular β Elimination of β-Alkylvinyl(chloro)-λ3-iodanes

1998 · Tadashi Okuyama, Tomoki Takino, et al. · Journal of the American Chemical Society · 76

Elimination−Addition Mechanism for Nucleophilic Substitution Reaction of Cyclohexenyl Iodonium Salts and Regioselectivity of Nucleophilic Addition to the Cyclohexyne Intermediate

2004 · Morifumi Fujita, Wan Hyeok Kim, et al. · Journal of the American Chemical Society · 61

Structural requirements for substrate in highly enantioselective hydrogenation over the cinchonidine-modified Pd/C

2008 · Takashi Sugimura, Takayuki Uchida, et al. · Journal of Catalysis · 55

Acetolysis of Styryl and 1-Decenyl Iodonium Salts. Occurrence of Two-Step Mechanism via Vinylenephenonium Ion and One-Step Inversion Mechanism

1997 · Tadashi Okuyama, Masahito Ochiai · Journal of the American Chemical Society · 50

Ion radicals. XXV. Reactions of thianthrene and phenothiazine perchlorates with nitrite ion, pyridine, and other nucleophiles

1972 · Henry J. Shine, Juana J. Silber, et al. · The Journal of Organic Chemistry · 44

Argentation Equilibria of Substituted Styrenes

1965 · Takayuki Fueno, Tadashi Okuyama, et al. · Journal of the American Chemical Society · 40

Vinylic SN2 Reaction of 1-Decenyliodonium Salt with Halide Ions

1998 · Tadashi Okuyama, Tomoki Takino, et al. · Bulletin of the Chemical Society of Japan · 39

The effect of the substrate structure on the stereoselectivity in an asymmetric hydrogenation of unsaturated carboxylic acids over cinchonidine-modified palladium catalyst

2005 · Takashi Sugimura, Junya Watanabe, et al. · Tetrahedron Asymmetry · 38

Structure and reactivity of .alpha.,.beta.-unsaturated ethers. Acid-catalyzed hydrolysis of alkenyl alkyl ethers

1967 · Tadashi. Okuyama, Takayuki. Fueno, et al. · Journal of the American Chemical Society · 38

Generation of Cycloalkynes by Hydro-Iodonio-Elimination of Vinyl Iodonium Salts

2005 · Tadashi Okuyama, Morifumi Fujita · Accounts of Chemical Research · 37

Stereochemical Inversion in the Vinylic Substitution of Boronic Esters To Give Iodonium Salts: Participation of the Internal Oxy Group

2006 · Morifumi Fujita, Hee Jin Lee, et al. · Organic Letters · 34

Thermal and Photochemical Solvolysis of (E)- and (Z)-2-Phenyl-1-propenyl(phenyl)iodonium Tetrafluoroborate: Benzenium and Primary Vinylic Cation Intermediates

2001 · Roel Gronheid, Gerrit Lodder, et al. · Journal of the American Chemical Society · 32

A theoretical study on the reactivity of vinyl iodonium ions

1999 · Tadashi Okuyama, Hiroshi Yamataka · Canadian Journal of Chemistry · 32

Photosolvolysis of (E)-Styryl(phenyl)iodonium Tetrafluoroborate. Generation and Reactivity of a Primary Vinyl Cation

2002 · Roel Gronheid, Gerrit Lodder, et al. · The Journal of Organic Chemistry · 29

Mechanism of acid-catalyzed hydrolysis of ketene dithioacetals: reversibility of the carbon protonation

1986 · Tadashi Okuyama · Accounts of Chemical Research · 29

Carbon-13 NMR Spectra of 1-Arylpropynes and 1-Arylpropenes. Transmission of the Electronic Effects of Substituents through Carbon-Carbon Triple and Double Bonds

1973 · Kunisuke Izawa, Tadashi Okuyama, et al. · Bulletin of the Chemical Society of Japan · 29

Highly enantioselective hydrogenation of α-Alkyl-β-arylpropenoic acids over cinchonidine-modified palladium catalyst

2006 · Takashi Sugimura, Junya Watanabe, et al. · Catalysis Letters · 28

Synthesis and nucleophilic substitution of allenyl(m-nitrophenyl)iodanes as a new propynyl cation-equivalent species: synthesis of propynyl ethers, esters, and amides

1996 · Michio Kida, Takuya Sueda, et al. · Chemical Communications · 28

Structure and reactivity of .alpha.,.beta.-unsaturated ethers. 16. Electrophilic addition of benzenesulfenyl chloride to .alpha.,.beta.-unsaturated ethers and sulfides

1978 · Kenzo Toyoshima, Tadashi Okuyama, et al. · The Journal of Organic Chemistry · 28

Regioselective Reactions of 1-Alkylidene-2-oxyallyl Cations with Furan: Control of [4 + 3] Cycloaddition, [3 + 2] Cycloaddition, and Electrophilic Substitution

2006 · Morifumi Fujita, Makoto Oshima, et al. · Organic Letters · 27

Temperature-Independent Stereocontrolled [2+2] Cycloaddition. Potential of the 2,4-Pentanediol Tether in Asymmetric Reactions as a Differential Activation Entropy Promoter

2000 · Takashi Sugimura, Takahiro Tei, et al. · Journal of the American Chemical Society · 27

Nucleophilic Vinylic Substitution and Vinyl Cation Intermediates in the Reactions of Vinyl Iodonium Salts

2002 · Tadashi Okuyama, Gerrit Lodder · Advances in physical organic chemistry · 26

Works count: 238

Citation count: 3,044

H-index: 25

I10-index: 106