One-pot microwave synthesis of tertiary phosphine sulfides directly from aromatic alkenes, elemental phosphorus and sulfur in KOH–DMSO system
作者:Vladimir A. Kuimov、Svetlana F. Malysheva、Nina K. Gusarova、Anastasiya O. Korocheva、Boris A. Trofimov
DOI:10.1080/17415993.2013.809454
日期:2014.3.4
Aromatic alkenes (vinylbenzene, 1-(tert-butyl)-4-vinylbenzene, 1-chloro-4-vinylbenzene) react with red phosphorus and elemental sulfur in the superbasic system KOH-DMSO(H2O) under microwave irradiation (600 W, 6-8 min, Ar) in the presence of hydroquinone to afford tris(2-phenylethyl)-, tris[2-(4-Bu-t-phenyl)ethyl]- and tris[2-(4-Cl-phenyl)ethyl]phosphine sulfides in 53%, 38% and 42% yield, respectively.[GRAPHICS].
Nucleophilic additon of phosphine to 1-(tert-butyl)-4-vinylbenzene: a short-cut to bulky secondary and tertiary phosphines and their chalcogenides
作者:Nina K. Gusarova、Svetlana F. Malysheva、Vladimir A. Kuimov、Nataliya A. Belogorlova、Valentina L. Mikhailenko、Boris A. Trofimov
DOI:10.1016/j.mencom.2008.09.011
日期:2008.9
Phosphine readily adds to 1-(tert-butyl)-4-vinylbenzene in the KOH-DMSO system (70-120 degrees C, 3 h, atmospheric pressure) to form bis[4-(tert-butyl)phenethyl]phosphine and tris[4-(tert-butyl)phenethyl]phosphine, which are further oxidized to corresponding phosphine oxides, sulfides and selenides.
A one-pot synthesis of a branched tertiary phosphine oxide from red phosphorus and 1-(tert-butyl)-4-vinylbenzene in KOH–DMSO: an unusually facile addition of P-centered nucleophiles to a weakly electrophilic double bond
作者:Boris A. Trofimov、Svetlana F. Malysheva、Nina K. Gusarova、Vladimir A. Kuimov、Nataliya A. Belogorlova、Boris G. Sukhov
DOI:10.1016/j.tetlet.2008.03.097
日期:2008.5
Red phosphorus reacts with 1-(tert-butyl)-4-vinylbenzene in a superbase media (KOH–DMSO, 90–100 °C, 3 h) to give tris[4-(tert-butyl)phenethyl]phosphine oxide in 77% yield. Microwave activation of the reaction affords the phosphine oxide in 82% yield in 6 min.