Аннотация:
The aprotic organic superacid CBr4·2AlBr3 initiates carbonylation of methylcyclopentane 1 and cyclohexane 2 with CO at atmospheric pressure with formation (after EtOH treatment) of various products in high yields depending on the conditions. The products are esters of 1-methylcyclopentanecarbonic (1a; at –45 °C) and cyclohexanecarbonic (2a; at 0 °C) acids and 2-methylcyclohexanone (3; at –23 °C); the reaction mechanism is discussed.
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