A method for the preparation of m‐ and p‐acylbenzoic acids 3 based on the Claisen condensation of isophthalic or terephthalic diesters 1 with α‐methylenecarboxylic esters 2 is described. p‐Propionylbenzoic acid p‐4 (R = Me) is used in a new synthesis of rac‐suprofen (11).
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