A Facile Route to Vinyl- and Arylphosphonates by Vinyl and Aryl Radical Trapping with (MeO)<sub>3</sub>P
作者:Xian-Yun Jiao、Wesley G. Bentrude
DOI:10.1021/jo020671a
日期:2003.4.1
The generation of vinyl or aryl radicals under classical, thermal AIBN/n-Bu3SnH conditions at 80 degreesC in the presence of an excess of (MeO)(3)P gives rise to the corresponding vinyl- or arylphosphonates in good yields. This approach complements the photochemical reactions of the same systems previously used. Reactions with the individual stereoisomers of MeCH=CHMeBr (thermal AIBN/n-BU3SnH conditions) afford a radical-equilibrated 96/4 E/Z ratio of vinylphosphonates. Substitution of (TMS)(3)SiH for n-Bu3SnH yields an approximately 1/1 ratio of separable E and Z vinylphosphonate diastereomers.
Gareev, R. D.; Chernova, A. V.; Ishnaeva, E. A., Journal of general chemistry of the USSR, 1982, vol. 52, # 11, p. 2161 - 2172
作者:Gareev, R. D.、Chernova, A. V.、Ishnaeva, E. A.、Berdnikov, E. A.、Shagidullin, R. R.