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Dive into the research topics where Yasuyuki Sakata is active.

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Featured researches published by Yasuyuki Sakata.


Studies in Surface Science and Catalysis | 1991

A Novel Oxidation of Internal Alkynes with Hydrogen Peroxide Catalyzed by Peroxotungstophosphates

Yasutaka Ishii; Yasuyuki Sakata

Abstract Internal alkynes underwent a novel oxidation with aqueous hydrogen peroxide catalyzed by peroxotungstophosphates under two-phase conditions using chloroform as the solvent, affording α, β-epoxy ketones and α,β-unsaturated ketones as principal products. The epoxidation of α, β-unsaturated ketones by this catalyst oxidant system was considered to proceed by electrophilic attack of the peroxo species to the double bond.


Journal of Organic Chemistry | 1990

A novel oxidation of internal alkynes with hydrogen peroxide catalyzed by peroxotungsten compounds

Yasutaka Ishii; Yasuyuki Sakata


Journal of Organic Chemistry | 1991

A versatile transformation of vic-diols into .alpha.-hydroxy ketones with hydrogen peroxide catalyzed by peroxotungstophosphates

Yasuyuki Sakata; Yasutaka Ishii


Chemistry Letters | 1992

Oxidation of Aliphatic and Aromatic Amines with Hydrogen Peroxide Catalyzed by Peroxoheteropoly Oxometalates

Shigeki Sakaue; Yasuyuki Sakata; Yutaka Nishiyama; Yasutaka Ishii


Chemistry Letters | 1984

N-(TRIMETHYLSILYLMETHYL)AMINOMETHYL ETHERS AS AZOMETHINE YLIDE SYNTHONS. A NEW AND CONVENIENT ACCESS TO PYRROLIDINE DERIVATIVES

Akira Hosomi; Yasuyuki Sakata; Hideki Sakurai


Journal of Organic Chemistry | 1994

Oxidation of Allenes and Alkynes with Hydrogen Peroxide Catalyzed by Cetylpyridinium Peroxotungstophosphate (PCWP)

Satoshi Sakaguchi; Seiji Watase; Yuji Katayama; Yasuyuki Sakata; Yutaka Nishiyama; Yasutaka Ishii


Chemistry Letters | 1989

Epoxidation of α,β-Unsaturated Carboxylic Acids with Hydrogen Peroxide by Heteropoly Acids

Takahito Oguchi; Yasuyuki Sakata; Naotoshi Takeuchi; Kimio Kaneda; Yasutaka Ishii; Masaya Ogawa


Chemistry Letters | 1990

Iodohydrin Synthesis from Simple and Functionalised Olefins on Treatment with Periodic Acid and Sodium Bisulfite

Hirofumi Ohta; Yasuyuki Sakata; Toshiyuki Takeuchi; Yasutaka Ishii


Chemistry Letters | 1992

Direct Catalytic Transformation of Olefins into α-Hydroxy Ketones with Hydrogen Peroxide Catalyzed by Peroxotungstophosphate

Yasuyuki Sakata; Yuji Katayama; Yasutaka Ishii


Chemistry Letters | 1983

REACTIONS OF α-HETEROATOM-SUBSTITUTED ETHERS AND SULFIDES WITH SILYL ENOL ETHERS. CHEMOSELECTIVITY IN THE CLEAVAGE OF HETEROATOM–CARBON BONDS BY IODOTRIMETHYLSILANE AND TRIMETHYLSILYL TRIFLUOROMETHANESULFONATE

Akira Hosomi; Yasuyuki Sakata; Hideki Sakurai

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