A new synthetic route to symmetrical pho
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Linda N. Lucas; Jan van Esch; Richard M. Kellogg; Ben L. Feringa
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Article
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1999
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Elsevier Science
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French
โ 166 KB
Symmetrical and photochromic diarylperfluorocyclopentene has been prepared by reaction of 3-1ithio-5-chloro-2-methylthiophene with the ethyl ester of hexafluoroglutaric acid, followed by ring closure via a McMurry coupling. Compound 7 is a versatile intermediate for the development of photochromic m