可见光光催化下变性黄原酸酯向烯烃的转移
Degenerative xanthate transfer to olefins under visible-light photocatalysis.
作者信息
Kaga Atsushi, Wu Xiangyang, Lim Joel Yi Jie, Hayashi Hirohito, Lu Yunpeng, Yeow Edwin K L, Chiba Shunsuke
机构信息
Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore.
出版信息
Beilstein J Org Chem. 2018 Dec 13;14:3047-3058. doi: 10.3762/bjoc.14.283. eCollection 2018.
The degenerative transfer of xanthates to olefins is enabled by the iridium-based photocatalyst Ir{dF(CF)ppy}(dtbbpy) 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.
在蓝色发光二极管（LED）光照下，基于铱的光催化剂Ir{dF(CF)ppy}(dtbbpy)能够实现黄原酸酯向烯烃的退化转移。通过动力学和光物理研究进行的详细机理研究表明，该过程在自由基链机理下进行，该机理是由基于铱的光催化剂的长寿命三重态对黄原酸酯的三重态敏化引发的。
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