[3+2] Photooxygenation of Aryl Cylopropanes Via Visible Light Photocatalysis
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We report that Ru(bpz) is an excellent sensitizer for the photooxygenation of aryl cyclopropanes upon irradiation with visible light. The effectiveness of this photocatalyst enables the synthesis of a range of five-membered endoperoxides in excellent yield with quite low (0.5 mol%) catalyst loadings even when standard household light sources are utilized.
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