Asymmetric aza-Michael additions of 4-nitrophthalimide to nitroalkenes and preliminary study of the products for herbicidal activities
作者:Shijun Ma、Lulu Wu、Ming Liu、Yaodong Huang、Yongmei Wang
DOI:10.1016/j.tet.2013.01.043
日期:2013.3
The first application of 4-nitrophthalimide as nitrogen nucleophile for enantioselective aza-Michael addition to nitroalkenes has been developed. The process is promoted by chiral thiourea catalyst derived from cinchonine to give corresponding Michael adducts with up to 87% ee. Activity test showed that some products of the reaction have moderate or good herbicidal activity against cole and barnyard grass at 100 mu g/ml. (C) 2013 Elsevier Ltd. All rights reserved.