二苯甲酰甲烷的可见光光催化自环丙烷化反应用于环丙烷的合成
Visible-Light-Photocatalyzed Self-Cyclopropanation Reactions of Dibenzoylmethanes for the Synthesis of Cyclopropanes.
作者信息
Indurmuddam Ranadheer Reddy, Huang Pei-Chi, Hong Bor-Cherng, Chien Su-Ying
机构信息
Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi 621, Taiwan ROC.
Instrumentation Center, National Taiwan University, Taipei 106, Taiwan ROC.
出版信息
Org Lett. 2024 Jul 12;26(27):5752-5757. doi: 10.1021/acs.orglett.4c01875. Epub 2024 Jul 1.
A new self-cyclopropanation of 1,3-diphenylpropane-1,3-dione, leading to tetrasubstituted cyclopropane containing three contiguous stereogenic centers with high stereoselectivity, has been achieved through violet-light-emitting diode-irradiated photocatalysis, featuring both cycloaddition and a distinctive rearrangement. Diverging from conventional cyclopropanation pathways, this reaction yields a tetrasubstituted cyclopropane through unprecedented rearrangement and cascade reactions.
通过紫光发光二极管照射的光催化作用，实现了1,3 - 二苯基丙烷 - 1,3 - 二酮的一种新的自环丙烷化反应，该反应以高立体选择性生成了含有三个相邻手性中心的四取代环丙烷，具有环加成和独特的重排反应。与传统的环丙烷化途径不同，该反应通过前所未有的重排和串联反应生成了四取代环丙烷。
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