Visible Light Mediated C(sp3)‐H Alkenylation of Cyclic Ethers Enabled by Aryl Ketone,ChemCatChem

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Visible Light Mediated C(sp3)‐H Alkenylation of Cyclic Ethers Enabled by Aryl Ketone
ChemCatChem ( IF 3.8 ) Pub Date : 2019-02-21 , DOI: 10.1002/cctc.201802079
Mengmeng Zhang ₁ , Liming Yang ₁ , Hui Yang ₁ , Guanghui An _{1,

2} , Guangming Li ₁

Affiliation

C−H alkenylation of cyclic ethers (THF, 1,4‐dioxane) using the readily available nitroalkenes as the alkenylating reagents has been developed. It allows the rapid access to the α‐alkenyl ethers with high E‐selectivity. The previous inaccessible α‐dienyl ethers are successfully obtained. Acyclic ether can also participate in this alkenylation process. The mechanism study reveals that alkenylation proceeded through a proton coupled electron transfer (PCET) process with a de‐nitration.

中文翻译：

芳基酮使可见光介导的环状醚的C（sp3）-H烯基化

已经开发出使用容易获得的硝基烯烃作为烯基化试剂的环状醚（THF，1,4-二恶烷）的CH烯基化反应。它可以快速获得具有高E选择性的α链烯基醚。成功获得了以前无法获得的α-二烯基醚。无环醚也可以参与该烯基化过程。机理研究表明，烯基化反应是通过质子偶联电子转移（PCET）过程进行的，该过程具有脱硝作用。

更新日期：2019-02-21

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