Solvent-free microwave synthesis of 3-(4-benzo[b]thiophene-2-carbonyl)-1-piperazinyl-1-benzo[b]thiophen-2-yl-1-propanones. New hetero bis-ligands with potential 5-HT1A serotonergic activity

Abstract

A novel series of 2-benzothiophenealkylpiperazine derivatives 11 (a-d) with potential affinity at 5-HT1A serotonin receptors have been synthesized via solvent-free, microwave-promoted Michael addition of benzo[b]thiophene piperazine derivatives 6(a-c) to substituted benzo[b]thiophen-2-yl propenones 10(b,c).