140429-26-1Relevant articles and documents
AN EXPEDIENT ROUTE TO 1H-BENZIMIDAZOLES AND 1H-IMIDAZOPYRIDINES
Eynde, Jean-Jacques Vanden,Mayence, Annie,Maquestiau, Andre,Anders, Ernst
, p. 357 - 364 (2007/10/02)
1H-Benzimidazoles, 1H-imidazopyridines, and 1H-imidazopyridines can be synthesized readily by reaction of unisolated N-(1-chloroalkyl)pyridinium chlorides with 1,2-benzenediamines, 2,3-pyridinediamine, and 3,4-pyridinediamine, respectively.
Novel syntheses of heterocycles with N-(1-haloalkyl)azinium halides. Part 2. Preparation of N-unsubstituted 1,4-dihydropyridines
Vanden Eynde,D'Orazio,Mayence,Maquestiau,Anders
, p. 1263 - 1268 (2007/10/02)
N-(1-Chloroalkyl)pyridinium chlorides, prepared from thionyl chloride, pyridine, and aldehydes, readily react with enaminocarbonyl derivatives to yield 1,4-dihydropyridines under mild and neutral conditions.
NOVEL SYNTHESES OF HETEROCYCLES WITH N-(1-HALOALKYL)AZINIUM HALIDES: PART 6. PREPARATION OF 2,3,4,5,10,11-HEXAHYDRO-1H-DIBENZODIAZEPIN-1-ONES
Eynde, J. -J. Vanden,Mayence, A.,Maquestiau, A.,Anders E.
, p. 801 - 806 (2007/10/02)
Conversion of aldehydes into N-(1-chloroalkyl)pyridinium chlorides (by means of pyridine and thionyl chloride) and further reaction with 3-(2-aminophenyl)amino-5,5-dimethyl-2-cyclohexenone provide a novel and efficient route to the title compounds.