As part of a program of synthesis of diamidines as antimicrobial agents, [10] and in an effort to eliminate the need for hydrogen gas for the efficient conversion of amidoximes to amidines, we have explored the use of ammonium formate (AF) as a hydrogen transfer reagent. Indeed, AF in the presence of Pd/C has been reported to reduce a number of different functional groups. [11] In this paper, we report that the AF/Pd/C system directly and efficiently reduces ...