Stereoselective electrocatalytic transformation of arylidenemalononitriles and malononitrile into (1R,5S,6R)*-6-aryl-2-amino-4,4-dialkoxy-1,5-dicyano-3-azabicyclo[3.1.0]hex-2-enes
摘要:
Electrolysis of arylidenemalononitriles and malononitrile in alcohols in an undivided cell in the presence of sodium bromide as mediator results in the stereoselective formation of (1R,2S,6R)*-6-aryl-2-amino-4,4-dialkoxy-1,5-dicyano-3-azabicyclo[3. 1.0]hex-2-enes in 60-80% yields. (C) 2004 Elsevier Ltd. All rights reserved.
Stereoselective electrocatalytic transformations of malononitrile and aromatic aldehydes into (1R,5S,6R)*-4,4-dialkoxy-2-amino-6-aryl-1,5-dicyano-3-azabicyclo[3.1.0]hex-2-enes
作者:M. N. Elinson、. K. Feducovich、T. A. Zaimovskaya、A. N. Vereshchagin、G. I. Nikishin
DOI:10.1007/s11172-005-0304-6
日期:2005.3
Electrolysis of aromatic aldehydes and malononitrile in alcohols in an undivided cell in the presence of a NaBr-NaOAc mediatory system stereoselectively gave bicyclic compounds containing the cyclopropane and pyrroline fragments in 60 to 70% yields. In the bicyclic products, the benzene and pyrroline rings are on different sides of the cyclopropane ring.