Coinage Metal Complexes of the Carbenic Tautomer of a Conjugated Mesomeric Betaine Akin to Nitron.

ABSTRACT: This study was motivated by our recent observation that the analytical reagent Nitron (2) is an "instant carbene", whose reaction with coinage metal salts MX afforded complexes of its carbenic tautomer 1,4-diphenyl-3-phenylamino-1,2,4-triazol-5-ylidene (2'). Our aim was to establish an alkyl homologue of 2 in order to achieve a carbenic tautomer of higher donicity. For this purpose 1-tert-butyl-4-methyl-1,2,4-triazol-4-ium-3-tert-butylaminide (6) was synthesized. Its reactions with MX afforded complexes of the carbenic tautomer 1-tert-butyl-3-tert-butylamino-4-methyl-1,2,4-triazol-5-ylidene (6'). With a stoichiometric ratio of 1:1 complexes of the type [MX(6')] were obtained. A ratio of 2:1 furnished complexes of the typ

SUBMITTER: Thie C 

PROVIDER: S-EPMC6152182 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature