Degenerative xanthate transfer to olefins under visible-light photocatalysis

The degenerative transfer of xanthates to olefins is enabled by the iridium-based photocatalyst [Ir{dF(CF(3))ppy}(2)(dtbbpy)](PF(6)) under blue LED light irradiation. Detailed mechanistic investigations through kinetics and photophysical studies revealed that the process operates under a radical cha...

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Detalles Bibliográficos
Autores principales: Kaga, Atsushi, Wu, Xiangyang, Lim, Joel Yi Jie, Hayashi, Hirohito, Lu, Yunpeng, Yeow, Edwin K L, Chiba, Shunsuke
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Beilstein-Institut 2018
Materias:
Full Research Paper
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6296426/
https://www.ncbi.nlm.nih.gov/pubmed/30591827
http://dx.doi.org/10.3762/bjoc.14.283
Descripción
Sumario:The degenerative transfer of xanthates to olefins is enabled by the iridium-based photocatalyst [Ir{dF(CF(3))ppy}(2)(dtbbpy)](PF(6)) under blue LED light irradiation. Detailed mechanistic investigations through kinetics and photophysical studies revealed that the process operates under a radical chain mechanism, which is initiated through triplet-sensitization of xanthates by the long-lived triplet state of the iridium-based photocatalyst.

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