Reaction of vinyl sulfoxides with sodium sulfide and polysulfides
摘要:
Sodium sulfide and polysulfides readily (50-55 degrees C, 3 h, aqueous medium) react with alkyl vinyl sulfoxides to afford bis(alkylsulfinylethyl)sulfides and -polysulfides in up to 75% yield. Under comparable conditions the reaction of divinyl sulfoxide with sodium sulfide proceeds by the mechanism of addition-cyclization and results in 1,4-dithiane-1-oxide and 1,4-oxathiane-4-oxide. Microwave activation of the studied reactions allows to increase their rate and efficiency.
Divinyl Sulfoxide: XI. Selective Addition of Carbonodithioate Anions to Divinyl Sulfoxide in the Water-Benzene System
作者:N. K. Gusarova、N. A. Chernysheva、M. Ya. Khil'ko、S. V. Yas'ko、L. M. Sinegovskaya、N. N. Chipanina、N. A. Korchevin、B. A. Trofimov
DOI:10.1007/s11176-005-0405-9
日期:2005.8
Selective monoaddition of carbonodithioate anions to divinyl sulfoxide gives rise to O-alkyl S-[2-(vinylsulfinyl)ethyl] carbonodithioates [ROC(S)SK, R = Et, Bu; 42–50°C, 6 h, NaHCO3, aqueous benzene].
Hydrothiophosphorylation of Vinyl Sulfoxides: First Examples
作者:Boris A. Trofimov、Nina K. Gusarova、Maria V. Bogdanova、Nina I. Ivanova、Nataliya A. Chernysheva、Boris G. Sukhov、Lidiya M. Sinegovskaya、Olga N. Kazheva、Grigorii G. Alexandrov、Oleg A. D’yachenko
DOI:10.1055/s-2005-918408
日期:——
The first examples of facile hydrothiophosphorylation of organyl vinyl sulfoxides are described. Nucleophilic addition of P,S-ambident secondary phosphine sulfides 1 and 2 to organyl vinyl sulfoxides 3-6 with potassium hydroxide at room temperature proceeds chemo- and regioselectively to give the corresponding bis(2-organylethyl)[2-(organylsulfinyl)ethyl]phosphine sulfides 7a-e in high isolated yields.