Since all the DXSO-DCC reactions we have examined have been found to require acidic catalysis, we felt that an extension of the above studies to amines as the reactive nucleophile might be difficult. This seemed particularly so since at an early stage we examined the reaction with 2, 4-dinitroaniline, an amine that we felt might be sufficiently weakly basic to not block the acid-catalyzed formation of 1. This compound showed no ...
