A new bisphosphonate reagent for the synthesis of (Z)-olefins and bis(trifluoroethyl) phosphonates
作者:Ashley A. Davis、Jennifer J. Rosén、James J. Kiddle
DOI:10.1016/s0040-4039(98)01329-x
日期:1998.8
A new Wadsworth-Emmons reagent, tetrakis(2,2,2-trifluoroethyl) methylenediphosphonate, was prepared and its reaction with aldehydes to yield Q-vinyl phosphonates is described. Additionally, an example of a base catalyzed isomerization of a Q-vinyl phosphonate to the corresponding (E)-allylic phosphonate is also discussed. (C) 1998 Elsevier Science Ltd. All rights reserved.