Abstract
The stereospecific syntheses of trans-2,3-diaryl-1-aminocyclopropanecarboxylic acid derivatives are reported. The key step is a 1,3-dipolar cycloaddition of phenyldiazomethane to (Z)-2-phenyl-4-arylidene-5(4H)-oxazolones, followed by the extrusion of nitrogen in situ.
Acknowledgment
Financial support from the Foundation of Science and Technology Bureau of the Guangxi Zhuang Autonomous Region, People's Republic of China is gratefully acknowledged.