Synthesis of 2,3,5-Triaryl-4-trifluoromethyl Thiophenes.

Abstract Triaryl- β -trifluoromethyl thiophenes are synthesized from 1,3-dithiolium-4-olates and various substituted 1-aryl-3,3,3-trifluoro-1-propynes. The spectroscopic characteristics of the products and the regioselectivity of the reaction are discussed.