Synthesis of lateral chloro substituted biphenyl carboxylic acids and phenols for optically active esters

Abstract

The new pathway for the synthesis of lateral chloro substituted biphenyl carboxylic acids and phenols has been worked out. 3-Aryl-6-alkylcyclohex-2-en-1-ones arriving from the Michael type condensation of Mannich salts with the corresponding 2-alkylacetoacetic esters were used as the key starting compounds. The prepared carboxylic acids and phenol were applied as semiproducts for the synthesis of variety of the optically active esters. The phase transition temperatures for the prepared compounds are determined.

Key Words:

• liquid crystals
• synthesis of liquid crystals
• intermediates for liquid crystals
• lateral chloro substituted biphenyl carboxylic acids and phenols
• optically active esters