Abstract
N-Aryl-trans,trans-α-carboxyl-β-benzoyl-γ-aryl-γ-butyrolactams were synthesized in high yields with high stereoselectivity by the reaction of electron-deficient cyclopropane derivatives, cis-1-benzoyl-2-aryl-6,6-dimethyl-5,7-dioxo-spiro-[Citation2 Citation5]-4,8-octadiones, with aromatic amines. The reaction mechanism was proposed.
ACKNOWLEDGMENT
This project was supported by the National Natural Science Foundation of China (No. 20472047) and the Foundations of Education Commission of Shanghai Municipality (Nos. J50102 and 08ZZ44).