Regioselective Addition of Dithiophosphinic Acids to Vinyl Sulfides and Selenides: An Efficient Route Toward Functional Dithiophosphinates
作者:Ludmila A. Oparina、Alexander V. Artem'ev、Nikita A. Kolyvanov、Oksana V. Vysotskaya、Nataliya A. Chernysheva、Vladimir I. Smirnov、Tatyana N. Borodina、Nina K. Gusarova、Boris A. Trofimov
DOI:10.1002/hc.21215
日期:2015.1
Earlier unknown S-[1-(organosulfanyl)ethyl]- and S-[1-(organoselenyl)ethyl] dithiophosphinates were synthesized in 85–97% yields by regioselectiveaddition of dithiophosphinicacids to diverse vinylsulfides and selenides under mild conditions (ambient temperature, Et2O, 3 h).
Hydrophosphination of Vinyl Sulfides and Vinyl Selenides: First Examples
作者:Nina K. Gusarova、Boris A. Trofimov、Svetlana F. Malysheva、Nina I. Ivanova、Boris G. Sukhov、Natal’ya A. Belogorlova、Vladimir A. Kuimov
DOI:10.1055/s-2002-34852
日期:——
The first examples of the hydrophosphination of alkyl vinyl sulfides and selenides are described. The reaction of secondary phosphines (R 1 ) 2 PH 1-3 with vinyl chalcogenides CH 2 =CHXR 2 4-9 proceeds readily under radical initiation to give in anti-Markovnikov mode regiospecifically the corresponding organylchalcogenophosphines (R 1 ) 2 PCH 2 CH 2 XR 2 10a-h in high yields.
Electrophilic addition of thioselenophosphinic acids to vinyl sulfides and selenides
作者:Alexander V. Artem'ev、Ludmila A. Oparina、Oksana V. Vysotskaya、Nikita A. Kolyvanov、Nina K. Gusarova、Boris A. Trofimov
DOI:10.1080/17415993.2015.1007142
日期:2015.3.4
The thioselenophosphinic acids, R2P(Se)SH (R = Ph, Cy, aralkyl), prepared by acidification of the sodium salts or generated in situ by reaction of secondary phosphine sulfides with elemental selenium, add easily to diverse vinyl sulfides and vinyl selenides in a Markovnikov manner to give the corresponding S- and Se-esters in a ∼60:40 molar ratio (83–96% total yield). GRAPHICAL ABSTRACT
Reaction of Vinyl Selenides with Secondary Phosphines and Elemental Selenium: One-Pot Selective Synthesis of a New Family of Diselenophosphinic<i>Se</i>-Esters
作者:Alexander V. Artem'ev、Nataliya A. Chernysheva、Nina K. Gusarova、Svetlana V. Yas'ko、Jian-Hong Liao、C. W. Liu、Alexander I. Albanov、Boris A. Trofimov
DOI:10.1002/hc.21144
日期:2014.5
Alkyl vinylselenides react with diverse secondary phosphines and elemental selenium in a 1.1:1:2 molar ratio (120–124°C, 20–40 min, 1,4-dioxane) to afford selectively earlier unknown diselenophosphinic Se-esters, R2P(Se)SeCH(Me)SeR´, in 82–99% yield. This three-component atom-economic reaction proceeds via intermediate formation of diselenophosphinic acid R2P(Se)SeH (generated from secondary phosphine
The first examples of a facile hydrochalcogenophosphorylation of alkyl vinyl selenides are reported. The regiospecific addition of secondaryphosphinesulfides and phosphine selenides to vinyl selenides proceeds under radical initiation (AIBN, 65-70 °C, 1 h or UV-irradiation, 1 h) to afford the anti-Markovnikov adducts in 87-95% yield.