Synthesis 1989; 1989(12): 918-922
DOI: 10.1055/s-1989-27430
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The Reaction of α-Chlorocarbenium Salts with Nitriles: Formation of Chloro-Substituted 2-Azoniaallene Salts

Johannes C. Jochims* , Atef Hamed, Tran Huu-Phuoc, Josef Hofmann, Helmut Fischer
  • *Fakultät Für Chemie der Universität Konstanz, Postfach 5560, D-7750 Konstanz, Federal Republic of Germany
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Publication History

Publication Date:
02 May 2002 (online)

Diaryl or arylchloro substituted α-chlorocarbenium salts react with benzonitriles or dimethylcyanamide to afford chloro substituted 2-azoniaallene salts 10a, b, 11c. An X-ray structural analysis confirms the constitution of one of these salts (11c). Substitution of the chlorine atoms in 1,3-dichloro-1,3-diphenyl-2-azoniaallene hexachloroantimonate (10a) by the nucleophiles water, p-cresol, p-toluidine, diethylamine, hydrazine, methyl-, phenyl-, 2.4,6-trichlorophenylhydrazine, hydroxylamine, N-phenylhydroxylamine, 1,3-dimethylurea, and ethyl allophanate have been carried out affording heterocycles and open-chain compounds 13-21.

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