作者:Thomas F. Knöpfel、Pablo Zarotti、Takashi Ichikawa、Erick M. Carreira
DOI:10.1021/ja052411r
日期:2005.7.13
We document a copper-catalyzed, enantioselective, conjugateaddition involving the direct use of a terminal acetylene, which undergoes in situ metalation. The addition reactions of phenylacetylene to Meldrum's acid derived acceptors take place in aqueous media, without recourse to inert atmosphere. The success of the enantioselective process was enabled by the use of a new class of conveniently accessed