Asymmetric Cyclization of <i>N</i>-Sulfonyl Alkenyl Amides Catalyzed by Iridium/Chiral Diene Complexes
作者:Midori Nagamoto、Tomoyuki Yanagi、Takahiro Nishimura、Hideki Yorimitsu
DOI:10.1021/acs.orglett.6b01954
日期:2016.9.16
Iridium/chiral diene complexes efficiently catalyzed the asymmetric cyclization of N-sulfonyl alkenyl amides to give the corresponding 2-pyrrolidone derivatives with high enantioselectivity. A mechanistic study revealed that the reaction proceeds via nucleophilic attack of the amide on the alkene moiety.
铱/手性二烯配合物有效地催化了N-磺酰基烯基酰胺的不对称环化反应,从而得到具有高对映选择性的相应的2-吡咯烷酮衍生物。机理研究表明,反应是通过酰胺对烯烃部分的亲核攻击而进行的。