Studies on highly regio- and stereoselective selenohydroxylation reaction of 1,2-allenyl phosphine oxides with PhSeCl
摘要:
The selenohydroxylation of readily available 1,2-allenyl phosphine oxides with PhSeCl in MeCN/H2O afforded 3-hydroxy-2-phenylselanyl-1(E)-alkenyl diphenyl phosphine oxides in good yields with very high regio- and stereoselectivities including the high efficiency of the axial chirality transfer. The E-stereoselectivity is believed to be determined by the neighboring group participation effect of the diphenyl phosphine oxide functionality. (C) 2009 Elsevier Ltd. All rights reserved.
Studies on highly regio- and stereoselective selenohydroxylation reaction of 1,2-allenyl phosphine oxides with PhSeCl
作者:Guangke He、Hao Guo、Rong Qian、Yinlong Guo、Chunling Fu、Shengming Ma
DOI:10.1016/j.tet.2009.04.023
日期:2009.6
The selenohydroxylation of readily available 1,2-allenyl phosphine oxides with PhSeCl in MeCN/H2O afforded 3-hydroxy-2-phenylselanyl-1(E)-alkenyl diphenyl phosphine oxides in good yields with very high regio- and stereoselectivities including the high efficiency of the axial chirality transfer. The E-stereoselectivity is believed to be determined by the neighboring group participation effect of the diphenyl phosphine oxide functionality. (C) 2009 Elsevier Ltd. All rights reserved.
Methyltrioxorhenium-catalyzed highly selective dihydroxylation of 1,2-allenylic diphenyl phosphine oxides