A selectivity control element for palladium-catalyzed trimethylenemethane cycloaddition
作者:Barry M. Trost、Michael C. Matelich
DOI:10.1021/ja00023a094
日期:1991.11
TROST, VON BARRY M.;SCHNEIDER, STEPHAN, ANGEW. CHEM., 101,(1989) N, C. 215-217
作者:TROST, VON BARRY M.、SCHNEIDER, STEPHAN
DOI:——
日期:——
Facile synthesis of unsaturated lactones via intramolecular Wittig reaction
作者:Pradeep Kumar、K. Saravanan
DOI:10.1016/s0040-4020(97)10428-8
日期:1998.3
The phosphoranes 3 formed from the reaction of a variety of keto alcohols 1 and (triphenylphosphoranylidene)ethenone 2 undergo intramolecular Wittig cyclization to afford the unsaturated lactones in moderate yields.