Photopromoted Ru-catalyzed asymmetric aerobic sulfide oxidation and epoxidation using water as a proton transfer mediator

H Tanaka, H Nishikawa, T Uchida…

Index: Tanaka, Haruna; Nishikawa, Hiroaki; Uchida, Tatsuya; Katsuki, Tsutomu Journal of the American Chemical Society, 2010 , vol. 132, # 34 p. 12034 - 12041

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Citation Number: 64

Abstract

Ru (NO)− salen complexes were found to catalyze asymmetric aerobic oxygen atom transfer reactions such as sulfide oxidation and epoxidation in the presence of water under visible light irradiation at room temperature. Oxidation of sulfides including alkyl aryl sulfides and 2- substituted 1, 3-dithianes using complex 2 as the catalyst proceeded with moderate to high enantioselectivity of up to 98% ee, and epoxidation of conjugated olefins using complex 3 ...