European Journal of Organic Chemistry

New photochromic dithienylethenes through a click chemistry approach

O Tosic, J Mattay

Index: Tosic, Oliver; Mattay, Jochen European Journal of Organic Chemistry, 2011 , # 2 p. 371 - 376

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Citation Number: 14

Abstract

Abstract Symmetric dithienylethenes 9–12 bearing a variety of substituents were synthesized by a click chemistry approach. The starting material, diacetylene 4, was obtained through Wittig reaction of dialdehyde 1 with dibromomethyltriphenylphosphonium bromide (2) and subsequent treatment with a lithium base (Corey–Fuchs reaction). Triazoles 11 and 12 with covalently linked fluorophore moieties show reversible quenching of ...

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