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Updated: Aug 10, 2026

Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene
Published on: March 20, 2017
Diastereoselective cyclization of a dithienylethene switch through single crystal confinement
Kingo Uchida1, Martin Walko, Jaap J D de Jong
1Department of Materials Chemistry, Faculty of Science and Technology, Ryukoku University, CREST-JST, Seta, Otsu, 520-2194, Japan. uchida@chem.ryukoku.ac.jp
Abstract:
Upon UV irradiation of the hydrogen-bond confined crystal state of a dithienylhexafluorocyclopentene with (R)-N-phenylethylamide substituents, the photochemical cyclization reaction proceeds diastereoselectively to form the coloured, closed-ring isomer with 97% de.
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