JEE Main Chemistry question
[IIT 2005] Three stereoisomeric methoxy-substituted aryl compounds (K, L and M), differing in the relative configuration of an adjacent leaving group and the methoxy substituent, are separately subjected to hydrolysis in aqueous acetone. Only the isomer in which the methoxy group is antiperiplanar to the leaving group can provide neighbouring-group (anchimeric) assistance; the hydrolysis product mixture is
Answer: (C)
Solution
Anchimeric assistance by a neighbouring methoxy group requires it to be antiperiplanar to the leaving group so that its oxygen lone pair can backside-displace the leaving group through a cyclic
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