Lithiation reaction of 2, 5-dibromothiophene. Carbon-13 NMR spectra of 3-substituted derivatives

…, RS Macomber, HB Mark Jr, H Zimmer

Index: Pham, Chiem van; Macomber, Roger S.; Mark, Harry B.; Zimmer, Hans Journal of Organic Chemistry, 1984 , vol. 49, # 26 p. 5250 - 5253

Full Text: HTML

Citation Number: 68

Abstract

Poly (2, 5-thienylenes), after doping with iodine, have been shown to exhibit significant conductivity. The polymeric materials were obtained by transition-metalinduced polymerization of the bis Grignard compounds derived from 2, 5-dibromothiophene, 1, and 2, 5-dibromo-3-methylthiophene, 2.'The polymeric material derived from 2 exhibited improved conductivity in comparison with that of 1 (eq 1). r5 R