1??Methyl??1??azacyclohexa??2, 3??diene (N− B) borane− Generation and Interception of an Unsymmetrical Isodihydropyridine

S Drinkuth, S Groetsch, EM Peters…

Index: Drinkuth, Stefan; Groetsch, Stefan; Peters, Eva-Maria; Peters, Karl; Christl, Manfred European Journal of Organic Chemistry, 2001 , # 14 p. 2665 - 2670

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Citation Number: 5

Abstract

Abstract 3-Bromo-1-methyl-1, 2, 5, 6-tetrahydropyridine (N− B) borane (7) was prepared from 3-bromopyridine by conversion to 3-bromo-1-methylpyridinium iodide, hydrogenation of the latter with sodium tetrahydroborate and treatment of the resulting 3-bromo-1-methyl-1, 2, 5, 6-tetrahydropyridine (6) with borane− dimethyl sulfide. Whereas no trapping product of the possible intermediate 1-methyl-1-azacyclohexa-2, 3-diene (4) could be observed on ...