SYNTHESIS OF LATERAL CHLORO SUBSTITUTED BIPHENYL CARBOXYLIC-ACIDS ANDPHENOLS FOR OPTICALLY-ACTIVE ESTERS

The new pathway for the synthesis of lateral chloro substituted biphen yl carboxylic acids and phenols has been worked out. 3-Aryl-6-alkylcyc lohex-2-en-1-ones arriving from the Michael type condensation of Manni ch salts with the corresponding 2-alkylacetoacetic esters were used as the key starting compounds. The prepared carboxylic acids and phenol were applied as semi-products for the synthesis of variety of the opti cally active esters. The phase transition temperatures for the prepare d compounds are determined.