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铱催化的二烷基丙二酸酯的不对称烯丙基烷基化反应,实现了手性全碳季碳中心的构建。

Ir-Catalyzed Asymmetric Allylic Alkylation of Dialkyl Malonates Enabling the Construction of Enantioenriched All-Carbon Quaternary Centers.

机构信息

The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 101-20, Pasadena, California 91125, United States.

Alterome Therapeutics, 11440 West Bernardo Court Ste. 330, San Diego, California 92127, United States.

出版信息

J Am Chem Soc. 2022 May 11;144(18):7983-7987. doi: 10.1021/jacs.2c02960. Epub 2022 Apr 27.

DOI:10.1021/jacs.2c02960
PMID:35476460
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10038141/
Abstract

An enantioselective iridium-catalyzed allylic alkylation of malonates with trisubstituted allylic electrophiles to form all-carbon quaternary stereocenters is reported. This reaction proceeds at ambient temperature and enables the preparation of a wide range of enantioenriched products in up to 93% yield and 97% ee. The quaternary products can be readily converted to several valuable building blocks such as vicinal quaternary products and β-quaternary acids.

摘要

报道了一种对映选择性的铱催化丙二酸酯与三取代烯丙基亲电试剂的烯丙基烷基化反应,形成全碳季碳立体中心。该反应在环境温度下进行,能够以高达 93%的收率和 97%的对映体过量制备广泛的手性富集产物。季碳产物可以很容易地转化为几种有价值的构建块,如邻位季碳产物和β-季碳酸。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/731c/10038141/1bb74c476eaf/nihms-1874509-f0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/731c/10038141/9f40d4533ea2/nihms-1874509-f0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/731c/10038141/a7ece53d72b7/nihms-1874509-f0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/731c/10038141/7f9210677e81/nihms-1874509-f0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/731c/10038141/6f4519ebffa4/nihms-1874509-f0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/731c/10038141/1bb74c476eaf/nihms-1874509-f0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/731c/10038141/9f40d4533ea2/nihms-1874509-f0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/731c/10038141/a7ece53d72b7/nihms-1874509-f0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/731c/10038141/7f9210677e81/nihms-1874509-f0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/731c/10038141/6f4519ebffa4/nihms-1874509-f0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/731c/10038141/1bb74c476eaf/nihms-1874509-f0007.jpg

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