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7 results in Authors: Masahiro Sai

Organic Chemistry

Working Paper

1-Arylallyloxysilanes as Formal Precursors to Potassium Homoenolate Equivalents of Ketones

Shuto Okuda, Yutaka Narita, Rikuo Hayashi, Taro Udagawa, Masahiro Sai

Version 1 posted 20 March 2025

227

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Organic Chemistry

Working Paper

β-Functionalized and α,β-Difunctionalized Ketones from 1-Arylallylic Alcohols via Dipotassio α,β-Dianion Intermediates

Rikuo Hayashi, Kaori Ando, Taro Udagawa, Masahiro Sai

Version 2 posted 26 August 2022

544

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Organic Chemistry

Working Paper

Regio- and Diastereoselective Synthesis of Unsymmetrical 1,4-Diketone-Derived (Z)-Monosilyl Enol Ethers via Siloxyallylpotassium Intermediates

Shuto Okuda, Yutaka Narita, Rikuo Hayashi, Masahiro Sai

Version 1 posted 30 December 2022

322

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Citations

Organometallic Chemistry

Working Paper

Silver-Catalyzed Tandem Cyclization for Syntheses of Azaoxa- and Diazaspirocycles

Momoka Shimaoka, Masahiro Sai

Version 1 posted 29 November 2022

231

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Organic Chemistry

Working Paper

One-Pot Synthesis of 3-Functionalized (Z)-Silyl Enol Ethers from 1-Arylallylic Alcohols by C,O-Difunctionalization of Dipotassio α,β-Dianion Intermediates

Rikuo Hayashi, Masahiro Sai

Version 1 posted 22 December 2022

307

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Citations

Organic Chemistry

Working Paper

Asymmetric Intramolecular Oxa-Michael Addition of ε- and ζ-Hydroxy-α,β-Unsaturated Esters Enabled by Chiral Crown Ether-Coordinated Potassium Base Catalysts

Takatoki Mizuno, Taro Udagawa, Masahiro Sai

Version 1 posted 14 March 2025

180

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Organic Chemistry

Working Paper

Chiral Potassium Brønsted Base-Catalyzed Stereoselective Synthesis of 1,3-Diols via a Tandem Allylic Isomerization/Asymmetric Aldol–Tishchenko Reaction

Hiroki Ishikawa, Masahiro Sai

Version 1 posted 18 March 2025

229

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7 results in Masahiro Sai in Authors: Masahiro Sai

1-Arylallyloxysilanes as Formal Precursors to Potassium Homoenolate Equivalents of Ketones

β-Functionalized and α,β-Difunctionalized Ketones from 1-Arylallylic Alcohols via Dipotassio α,β-Dianion Intermediates

Regio- and Diastereoselective Synthesis of Unsymmetrical 1,4-Diketone-Derived (Z)-Monosilyl Enol Ethers via Siloxyallylpotassium Intermediates

Silver-Catalyzed Tandem Cyclization for Syntheses of Azaoxa- and Diazaspirocycles

One-Pot Synthesis of 3-Functionalized (Z)-Silyl Enol Ethers from 1-Arylallylic Alcohols by C,O-Difunctionalization of Dipotassio α,β-Dianion Intermediates

Asymmetric Intramolecular Oxa-Michael Addition of ε- and ζ-Hydroxy-α,β-Unsaturated Esters Enabled by Chiral Crown Ether-Coordinated Potassium Base Catalysts

Chiral Potassium Brønsted Base-Catalyzed Stereoselective Synthesis of 1,3-Diols via a Tandem Allylic Isomerization/Asymmetric Aldol–Tishchenko Reaction

7 results in Authors: Masahiro Sai