New fast synthesis route for symmetric and asymmetric phenyl-substituted photochromic dithienylethenes bearing functional groups such as alcohols, carboxylic acids, or amines |
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Authors: | Stephan Hermes Giuseppe Zerbi |
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Institution: | Dipartimento di Chimica, Materiali e Ingegneria Chimica ‘Giulio Natta’, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy INSTM—Italian Interuniversity Consortium on Materials Science and Technology, via G. Giusti 9, 50121 Firenze, Italy |
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Abstract: | This Letter describes an efficient three-step synthesis route of symmetric and asymmetric phenyl-substituted photochromic 1,2-dithienylethenes bearing unprotected functional groups (i.e., alcohols, carboxylic acids or amines). These products can be easily obtained by typical Suzuki cross-coupling between photochromic dichlorides and commercial available boronic acids or pinacol esters. |
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Keywords: | Dithienylethenes Photochromism Suzuki-coupling |
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