The Reaction of α-Chlorocarbenium Salts with Nitriles: Formation of Chloro-Substituted 2-Azoniaallene Salts
作者:Johannes C. Jochims、Atef Hamed、Tran Huu-Phuoc、Josef Hofmann、Helmut Fischer
DOI:10.1055/s-1989-27430
日期:——
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.
二芳基或芳基氯取代的 δ±-氯羰基鎓盐与苯甲腈或二甲基氰酰胺反应,生成氯取代的 2-氮杂烯盐 10a、b、11c。X 射线结构分析证实了其中一种盐(11c)的组成。水、对甲酚、对甲苯胺、二乙胺、肼、甲基、苯基、2.4,6-三氯苯肼、羟胺、N-苯基羟胺、1,3-二甲基脲和异han酸乙酯进行反应,得到杂环和开链化合物 13-21。