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Photocatalytic Cycloadditions Enabled by a Lithium Perchlorate/Nitromethane Electrolyte Solution
Author(s) -
Nagahara Shingo,
Wakamatsu Hiroki,
Okada Yohei,
Chiba Kazuhiro
Publication year - 2018
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.201801280
Subject(s) - nitromethane , chemistry , lithium perchlorate , photochemistry , electron acceptor , perchlorate , lithium (medication) , photocatalysis , inorganic chemistry , electrolyte , electron transfer , acceptor , lewis acids and bases , excited state , organic chemistry , catalysis , ion , electrode , medicine , physics , condensed matter physics , nuclear physics , endocrinology
Photocatalytic cycloadditions involving carbon–carbon bond formation in the absence of an external sensitizer are described. The use of a lithium perchlorate/nitromethane electrolyte solution exhibiting remarkable Lewis acidity is the key for the successful transformations. According to the UV/Vis measurements, an electron donor–acceptor complex did not form and nitromethane was expected to function as the initial sensitizer for the reactions. Although the mechanisms are still under debate, both electron‐ and energy‐transfer processes could be involved, both of which are triggered by excited nitromethane in combination with molecular oxygen.