Asymmetric Formal [3+2] Cycloaddition Reaction of Isocyanoesters to 2‐Oxobutenoate Esters by a Multifunctional Chiral Silver Catalyst
作者:Jin Song、Chang Guo、Peng‐Hao Chen、Jie Yu、Shi‐Wei Luo、Liu‐Zhu Gong
DOI:10.1002/chem.201100636
日期:2011.7.4
Silver‐standard selectivity! The first highly enantioselective formal [3+2] cycloaddition reaction of isocyanoesters with 2‐oxobutenoate esters catalyzed by a chiralsilver complex proceeded readily under the catalysis of a multifunctional chiralsilver complex in high yields and enantiometric excess (ee) values of up to 98 % (see scheme).