A practical synthesis of enantiopure N-carbobenzyloxy-N′-phthaloyl-cis-1,2-cyclohexanediamine by asymmetric reductive amination and the Curtius rearrangement
作者:Jun-ichi Matsuo、Masahiko Okano、Kosuke Takeuchi、Hiroyuki Tanaka、Hiroyuki Ishibashi
DOI:10.1016/j.tetasy.2007.08.014
日期:2007.8
Enantionterically pure N-carbobenzyloxy-N'-phthaloyl-cis-1,2-cyclohexanediamine was synthesized by the asymmetric reduction of a beta-enamino ester formed from benzyl 2-oxocycloliexanecarboxylate and (R)-phenylethylamine, followed by hydrogenolysis, phthaloylation, and the Curtius rearrangement. (c) 2007 Elsevier Ltd. All rights reserved.