Halogenation of N-Substituted p-Quinonimines and p-Quinone Oxime Esters: I. Chlorination and Bromination of 4-Aroyloxyimino- and Arylsulfonyloxyimino-2,5-cyclohexadienones期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Halogenation of N-Substituted p-Quinonimines and p-Quinone Oxime Esters: I. Chlorination and Bromination of 4-Aroyloxyimino- and Arylsulfonyloxyimino-2,5-cyclohexadienones

Authors:	Avdeenko A. P. Shishkina S. V. Shishkin O. V. Glinyanaya N. M. Konovalova S. A. Goncharova S. A.

Affiliation:	(1) Donbass State Machine-Building Academy, ul. Shkadinova 72, Kramatorsk, 84313, Ukraine;(2) Research Department of Alkali Metal Halide Crystals, Institut monokristallov Research and Technological Concern, National Academy of Sciences of Ukraine, Kharkiv, Ukraine

Abstract:	Chlorine and bromine addition to 4-aroyloxyimino- and 4-arylsulfonyloxymino-3-methyl-2,5-cyclohexadienones initially occurs at the C⁵ÍC⁶ double bond. The second chlorine molecule adds at both C²Í^C and C⁵ÍC⁶ double bonds. The chlorination of 2,5-dialkyl-substituted 4-aroyloxyimino- and 4-arylsulfonyloxymino-2,5-cyclohexadienones involves either of the CÍC bonds in the quinoid ring.

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