Rh-Catalyzed Reductive Cyclization of Enynes Using Ethanol as a Source of Hydrogen
作者:Ji Hoon Park、Soo Min Kim、Young Keun Chung
DOI:10.1002/chem.201101745
日期:2011.9.19
H‐eartfelt donation: A Rh‐catalyzed reductivecyclization of unactivated 1,6‐enynes was developed that uses an alcohol as hydrogen donor under mild reaction conditions (see scheme). The reaction is an environmentally friendly synthetic method and proceeds efficiently to give various exo‐methylene‐substituted pyrrolidines, tetrahydrofuran, and cyclopentane compounds in a highly selective manner in moderate