Ethyl 2-acetylalkanoate gave ethyl2-(methyl- or phenylthio)alkanoate in high yield on treatment wiht CH3SSO2CH3, PhSSO2Ph, or PhSSPh in the presence of small excess of EtONa in EtOH. Application of the present method to synthesis of pellitorine and the queen substance is also described.
1,2-Thio Group Migration in Rh(II) Carbene Reactions
作者:Feng Xu、Weifeng Shi、Jianbo Wang
DOI:10.1021/jo050109v
日期:2005.5.1
A series of β-thio group substituted α-diazo carbonyl compounds have been prepared by nucleophilicsubstitutionreactions of thiophenol, thionaphthol, or benzyl mercaptan with β-acetoxy-α-diazo carbonyl compounds. The diazo decomposition of these diazo carbonyl compounds with various transition metal catalysts, including Rh(II) carboxylates and Cu(I) and Cu(II) complexes, has been investigated. It
Sulfenylation Accompanied by Dealkoxycarbonylation of β-Keto Esters, Geminal Diesters, and α-Cyano Ester in Hexamethylphosphoric Triamide (HMPA)
作者:Morio Asaoka、Kazutoshi Miyake、Hisashi Takei
DOI:10.1246/bcsj.51.3008
日期:1978.10
In the presence of sodium iodide, diphenyl disulfide reacted with geminal diesters, β-keto esters, and α-cyano esters in hexamethylphosphoric triamide (HMPA) at 150–160 °C to give alkyl phenyl sulfides and α-phenylthio esters, ketones, and nitriles, respectively, along with evolution of carbon dioxide.
在碘化钠存在下,二苯基二硫化物在 150-160 °C 的温度下与六甲基三磷酰胺 (HMPA) 中的宝石二酯、β-酮酯和α-氰酯发生反应,分别生成烷基苯基硫化物和α-苯基硫代酯、酮和腈,同时产生二氧化碳。
Solid-Liquid Phase Transfer Catalytic Synthesis. XI. The Convenient and Efficient Alkylation of Ethyl Phenylmercapto-Acetate in the Presence of Quaternary Ammonium Salts Under Microwave Irradiation
作者:Runhua Deng、Yuliang Wang、Yaozhong Jiang
DOI:10.1080/00397919408010199
日期:1994.7
Abstract The rapid alkylation of ethyl phenylmercapto—acetate with a series of halides was performed in 650W domestic microwave oven to yield the alkylated products in 58 to 83%.
Photocatalytic [2,3]-Sigmatropic Rearrangement Reactions of Ethyl Diazoacetate
作者:Karabo M. Bopape、Aryan Shah、Rene M. Koenigs
DOI:10.1055/a-2201-7197
日期:——
We describe a photocatalytic reaction of diazo compounds with allyl sulfides under visible-light reaction conditions. In the presence of Ru(bpy)3Cl2 as a photocatalyst, a [2,3]-sigmatropic rearrangementreaction occurs that leads to the formation of homoallylic sulfides. This reaction proceeds in acetone as the solvent, which is unusual in carbene-transfer reactions, and it shows a broad substrate