Catalytic anti-selective asymmetric Henry (nitroaldol) reaction catalyzed by Cu(I)–amine–imine complexes
作者:Yao Qiong Ji、Gao Qi、Zaher M.A. Judeh
DOI:10.1016/j.tetasy.2011.12.010
日期:2011.12
derived from N-methyl-C1-tetrahydro-1,1′-bisisoquinolines (R)-1b and Cu(I)Cl promoted the diastereoselective Henry reaction of nitroethane with a series of aromatic and aliphatic aldehydes. The nitroalcohol adducts were obtained in excellent yields (up to 95%), moderate anti-selectivity (up to 2.6:1), and good enantioselectivity (up to 92% ee) without any special precautions to exclude moisture or air
衍生自N-甲基-C 1-四氢-1,1'-双异喹啉(R)-1b和Cu(I)Cl的手性配合物促进了硝基乙烷与一系列芳香族和脂肪族醛的非对映选择性亨利反应。硝基醇加合物的收率高(高达95%),适度的抗选择性(高达2.6:1)和良好的对映选择性(高达92%ee),并且没有任何特殊的预防措施来排除水分或空气。