Electrochemical generation of 4-amino-2-aryl-2-oxazolines
摘要:
A convenient method for the synthesis of the title compounds has been established. Chloralbenzamides were efficiently converted to N-(1-amino-2,2-dichloroethyl)benzamides which were directly transformed to 4-amino-2-aryl-2-oxazolines in fair to good yields by electrochemical reduction in an aprotic medium under constant cathodic potential. The molecular structure of the electrolysis products has been corroborated by X-ray crystallographic analysis of 4-(1-benzyl-3-phenylureido)-2-phenyl-2-oxazoline. (C) 2002 Elsevier Science Ltd. All rights reserved.
Direct conversion of 4-amino-2-oxazolines into 2-imidazolidinones
作者:Antonio Guirado、Raquel Andreu、Jesús Gálvez
DOI:10.1016/s0040-4039(99)01682-2
日期:1999.11
A convenient new method for the synthesis of polysubstituted 2-imidazolidinones has been established involving the reaction of 4-alkylamino-2-aryl-2-oxazolines with arylsulfonyl isocyanates. It has been applied successfully in preparing previously unknown 3-alkyl-4-aroylamino-1-arylsulfonyl-2-imidazolidinones in high yields.