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Demethylenation of Cyclopropanes via Photoinduced Guest‐to‐Host Electron Transfer in an M 6 L 4 Cage
Author(s) -
Cullen William,
Takezawa Hiroki,
Fujita Makoto
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201904752
Subject(s) - cage , chemistry , electron transfer , photochemistry , molecule , derivatization , photoinduced electron transfer , host (biology) , steroid , organic chemistry , ecology , biochemistry , high performance liquid chromatography , mathematics , combinatorics , hormone , biology
Unusual demethylenation reactions of cyclopropanes under UV‐light irradiation were found within a cavity of a photoactive coordination cage. The reaction proceeded via a guest‐to‐host electron transfer owing to the highly electron‐deficient nature of the cage. The reactions were highly chemoselective and enabled late‐stage derivatization of a steroid molecule, which led to a totally new un‐natural steroid.