THE REACTIONS OF BENZYLIDENEMALONONITRILES AND β-NITROSTYRENES WITH O-PHENYLENEDIAMINE INCLUDING THE NEW ORGANIC REDOX REACTIONS BETWEEN THE OLEFINS AND 2-PHENYLBENZIMIDAZOLINES

Abstract
The reactions of benzylidenemalononitriles and β-nitrostyrenes with o-phenylenediamine in ethanol at boiling temperature gave the reduced products of the olefins. The reactions were rationalized on the basis of the role of 2-phenylbenzimidazolines as a hydrogen donor.