Tetrahedron Letters p. 1775 - 1778 (1999)
Update date:2022-07-29
Topics:
Lucas, Linda N.
Van Esch, Jan
Kellogg, Richard M.
Feringa, Ben L.
Symmetrical and photochromic diarylperfluorocyclopentene has been prepared by reaction of 3-lithio-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 materials.
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(2018)
