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[2+2] Cycloaddition of 1,3‐Dienes by Visible Light Photocatalysis
Author(s) -
Hurtley Anna E.,
Lu Zhan,
Yoon Tehshik P.
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201405359
Subject(s) - cycloaddition , photoexcitation , photocatalysis , visible spectrum , photochemistry , chemistry , combinatorial chemistry , organic chemistry , catalysis , materials science , excited state , optoelectronics , physics , nuclear physics
[2+2] Photocycloadditions of 1,3‐dienes represent a powerful yet synthetically underutilized class of reactions. We report that visible light absorbing transition metal complexes enable the [2+2] cycloaddition of a diverse range of 1,3‐dienes. The ability to use long‐wavelength visible light is attractive because these reaction conditions tolerate the presence of sensitive functional groups that might be readily decomposed by the high‐energy UVC radiation required for direct photoexcitation of 1,3‐dienes. The resulting vinylcyclobutane products are poised for a variety of further diversification reactions, and this method is consequently expected to be powerfully enabling in the synthesis of complex organic targets.