A convenient synthesis of 2, 5-thienylene oligomers; some of their spectroscopic and electrochemical properties

C Van Pham, A Burkhardt, R Shabana…

Index: Pham, Chiem Van; Burkhardt, A.; Shabana, R.; Cunningham, David D.; Mark, Harry B.; Zimmer, Hans Phosphorus, Sulfur and Silicon and the Related Elements, 1989 , vol. 46, p. 153 - 168

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Citation Number: 78

Abstract

Abstract A convenient synthesis of a number of oligomeric thiophcnes and oligomeric methyl- , and ethyl-substituted thiophenes as building blocks for novel conducting polymers is reported. The synthesis is based on a NiCl2 (dppp)(dppp= Ph2PCH2CH2CH2; PPh2) catalyzed coupling reaction between appropriately substituted bromothiophenes and Grignard compounds derived of them. The λmax of the UV spectra of the unsubstituted ...

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