Cholesteric medium inductive asymmetric polymerization: preparation of optically active polythiophene derivatives from achiral monomers in cholesteric liquid crystals

TETRAHEDRON LETTERS

卷:48

Article

Togashi, Fumihiro ; Ohta, Reina ; Goto, Hiromasa

关键词: chirality;    circular dichroism;    conjugated polymer;    liquid crystals;   

DOI  :  10.1016/j.tetlet.2007.02.025

来源: Elsevier

【 摘 要 】

This Letter reports the synthesis and optical properties of polythiophenes prepared in cholesteric liquid crystal (CLC) medium. The polythiophenes prepared from achiral monomers in the CLC display consistent optical activity. In the first step of this research, we prepared CLCs for a reaction solvent. Next, Stille-type polycondensation reaction in the CLC was carried out. The resultant polymers show intense circular dichroism (CD). The CD results suggest that the polymers form a chiral structure. (c) 2007 Elsevier Ltd. All rights reserved.

【 授权许可】

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