CYCLOHEXENONES THROUGH ADDITION OF ETHYL ACETOACETATE TO CHALCONES DERIVED FROM 2-ACETYLTHIOPHENE
Gheorghe
Roman
Department of Chemistry, Transilvania
University, 29
Eroilor Blvd., 500036 Brašov,
Romania
Abstract
Nine new ethyl 6-aryl-4-(2-thienyl)cyclohex-3-en-2-one-1-carboxylates, valuable intermediates in the synthesis of fused heterocycles, have been prepared through NaOH-catalyzed cyclocondensation of 3-aryl-1-(2-thienyl)prop-2-en-1-ones with ethyl acetoacetate.
Key words: chalcone, Michael addition, cyclocondensation, cyclohexenones