Chromium(0)-Catalyzed Tandem Cyclization of α,β-Unsaturated Thioimidates Containing an Enyne Moiety
作者:Yusuke Karibe、Hiroyuki Kusama、Nobuharu Iwasawa
DOI:10.1002/anie.201201505
日期:2012.6.18
1‐azabicyclo[5.3.0]decane derivatives proceeds through 1,7‐electrocyclization of the zwitterionic intermediates that are formed in the cyclization of α,β‐unsaturated thioimidatescontaining an enynemoiety (see scheme). Furthermore 1,4‐addition of nucleophiles to α,β‐unsaturated carbene complex intermediates was also achieved.