Tetrahedron

Selective and efficient syntheses of phototoxic 2, 2′: 5′, 2 ″-terthiophene derivatives bearing a functional substituent in the 3′-or the 5-position

R Rossi, A Carpita, M Ciofalo, V Lippolis

Index: Rossi; Carpita; Ciofalo; Lippolis Tetrahedron, 1991 , vol. 47, # 39 p. 8443 - 8460

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Citation Number: 67

Abstract

Efficient and selective procedures have been developed to prepare on a medium scale several phototoxic 2, 2′: 5′, 2 ″-terthiophene derivatives of general formula 2 and 3, which are characterized by a functional substituent in the 3′-or the 5-position. Most of these procedures, which are based on the construction of the 2.2′: 5′, 2 ″-terthiophene moiety and involve palladium-mediated carbon-carbon bond forming reactions, allow to ...