Abstract
1. During the oxidative cyanation of 2-, 3-, and 4-methylcyclohexanones in the Na2S2O8-NaCN system the corresponding 4-cyano(methyl)cyclohexanones are formed regiospecifically. 2. The oxidative cyanation of 2- and 3-methylcyclohexanones takes place diastereoselectively with the formation of trans- and cis-4-cyano-2(3)-methylcyclohexanones in a ratio of 1.5∶1 (or 2∶1). The selectivity of cyanation is determined by the bridge structure of the intermediate 4-oxo(methyl)cyclohexyl radicals, which are the precursors of the 4-cyanocyclohexanones.
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More From: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science
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