Tetrahedron

Electrophilic 2-thienylselenenylation of thiophene. Preparation of oligo (seleno-2, 5-thienylenes)

M Tiecco, L Testaferri, L Bagnoli, F Marini, A Temperini…

Index: Tiecco, Marcello; Testaferri, Lorenzo; Bagnoli, Luana; Marini, Francesca; Temperini, Andrea; Tomassini, Cristina; Santi, Claudio Tetrahedron, 2000 , vol. 56, # 20 p. 3255 - 3260

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Citation Number: 15

Abstract

The substitution reactions of thiophene and 2-methylthiophene with the electrophilic selenenylating agent produced from the 2, 2′-dithienyl diselenide by oxidation with iodobenzene diacetate involve only the α-positions and give rise to the formation of oligo (seleno-2, 5-thienylenes). Products deriving from the attack at the α-positions of thiophene and 2-methylthiophene were also observed starting from the 5, 5′-dimethyl-2, 2′- ...