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 C2ÍC 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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Avdeenko, A.P., Shishkina, S.V., Shishkin, O.V. et al. Halogenation of N-Substituted p-Quinonimines and p-Quinone Oxime Esters: I. Chlorination and Bromination of 4-Aroyloxyimino- and Arylsulfonyloxyimino-2,5-cyclohexadienones. Russian Journal of Organic Chemistry 38, 683–691 (2002). https://doi.org/10.1023/A:1019611105962
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DOI: https://doi.org/10.1023/A:1019611105962