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铑（III）催化由芳基酮 - 乙酰肟和醌合成二苯并[,]吡喃 - 6 - 酮：C-H活化和C-C键断裂

Rh(iii)-catalyzed synthesis of dibenzo[,]pyran-6-ones from aryl ketone -acetyl oximes and quinones C-H activation and C-C bond cleavage.

作者信息

Yang Wei, Zhang Haonan, Liu Yu, Tang Cuiman, Xu Xiaohui, Liu Jiaqi

机构信息

School of Chemical Engineering, Northeast Electric Power University Jilin 132012 China

Gongqing Institute of Science and Technology Gongqing 332020 China.

出版信息

RSC Adv. 2022 May 12;12(23):14435-14438. doi: 10.1039/d2ra02074b.

DOI:10.1039/d2ra02074b
PMID:35702227
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9096810/
Abstract

A redox-neutral synthesis of dibenzo[,]pyran-6-ones from aryl ketone -acetyl oximes and quinones has been realized Rh(iii)-catalyzed cascade C-H activation annulation. A possible Rh(iii)-Rh(v)-Rh(iii) mechanism involving an unprecedented β-C elimination step was proposed.

摘要

通过铑（III）催化的级联C-H活化环化反应，实现了从芳基酮乙酰肟和醌类化合物中进行氧化还原中性合成二苯并[,]吡喃-6-酮。提出了一种可能的铑（III）-铑（V）-铑（III）机理，该机理涉及一个前所未有的β-C消除步骤。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/38cc/9096810/3d676837ff8a/d2ra02074b-s3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/38cc/9096810/17b4132d8cad/d2ra02074b-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/38cc/9096810/5774c710c31b/d2ra02074b-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/38cc/9096810/680a4b4956f0/d2ra02074b-s2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/38cc/9096810/3d676837ff8a/d2ra02074b-s3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/38cc/9096810/17b4132d8cad/d2ra02074b-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/38cc/9096810/5774c710c31b/d2ra02074b-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/38cc/9096810/680a4b4956f0/d2ra02074b-s2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/38cc/9096810/3d676837ff8a/d2ra02074b-s3.jpg

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