Copper-catalyzed direct alpha-alkynylation of ethers under mild conditions

Ye Yu-Xin; Ou Yan-Ling; Liang Hao; Zhou Hai-Yun; Ye Bao-Hui

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Copper-catalyzed direct alpha-alkynylation of ethers under mild conditions

机译：在温和条件下铜催化的醚直接α-醇烷基化

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摘要

A new method for the direct alpha-alkynylation of ethers C(sp(3))-H bond with terminal alkynes C(sp)-H bond is described in good yields in the presence of a pincer ligand and copper(II) ion under mild conditions. The catalytic reaction is compatible with various functional groups. Investigation of the mechanism indicates a catalytic cycle involving a radical process and the cleavage of ether C(sp(3))-H bond affording the alpha-oxy radical is the rate determining step.

机译：在存在钳子配体和铜（II）离子的情况下，在存在渗透体和铜（II）离子的情况下，在烯烷烃C（SP）-H键合烯醇的直接α-炔醇-H-H键的新方法温和的条件。催化反应与各种官能团相容。该机制的研究表明，涉及自由基方法的催化循环和醚C的切割（SP（3）） - H键，得到α-氧自由基的键是速率确定步骤。

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来源
《Catalysis Communications》 |2018年第2018期|共5页
作者
Ye Yu-Xin; Ou Yan-Ling; Liang Hao; Zhou Hai-Yun; Ye Bao-Hui;
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作者单位

Sun Yat Sen Univ Sch Chem MOE Key Lab Bioinorgan &

Synthet Chem Guangzhou 510275 Guangdong Peoples R China;

Sun Yat Sen Univ Sch Chem MOE Key Lab Bioinorgan &

Synthet Chem Guangzhou 510275 Guangdong Peoples R China;

Sun Yat Sen Univ Sch Chem MOE Key Lab Bioinorgan &

Synthet Chem Guangzhou 510275 Guangdong Peoples R China;

Sun Yat Sen Univ Instrumental Anal &

Res Ctr Guangzhou 510275 Guangdong Peoples R China;

Sun Yat Sen Univ Sch Chem MOE Key Lab Bioinorgan &

Synthet Chem Guangzhou 510275 Guangdong Peoples R China;

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原文格式 PDF
正文语种 eng
中图分类物理化学（理论化学）、化学物理学;
关键词
Alkynylation; Copper-catalyzed; Ether; N-pincer ligand; Terminal alkyne;

机译：alkynylation;铜催化;乙醚;n-pincer配体;alkyne;

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专利

1. Copper-catalyzed direct alpha-alkynylation of ethers under mild conditions [J] . Ye Yu-Xin, Ou Yan-Ling, Liang Hao, Catalysis Communications . 2018,第期

机译：在温和条件下铜催化的醚直接α-醇烷基化
2. The use of Nafion-H as an efficient catalyst for the direct conversin of primary and secondary trimethylsilyl ethers to their corresponding ethers under mild and heterogeneous conditions [J] . Mohammad Ali Zolfigol, Iraj Mohammadpoor-Baltork, Davood Habibi, Tetrahedron letters: The International Journal for the Rapid Publication of Preliminary Communications in Organic Chemistry . 2003,第44期

机译：使用Nafion-H作为有效催化剂，可在温和和非均相条件下将伯甲基和仲三甲基甲硅烷基醚直接转化为其相应的醚
3. Copper-Catalyzed Direct Carbamoylation of Quinoxalin-2(1H)-ones with Hydrazinecarboxamides Under Mild Conditions [J] . Chu Xianglong, Wu Yujuan, Lu Haigen, European journal of organic chemistry . 2020,第9期

机译：在温和条件下用肼乙酰甲酰胺的铜催化的喹唑啉-2（1H）酮的直接碳化碳化物
4. Direct conversion of methane to methanol over Copper-Exchanged Zeolites under mild conditions [C] . ZENG R., Li L., Shimizu T 化学工学会年会 . 2020

机译：在温和条件下将甲烷直接转化甲烷在铜交换沸石上的甲醇
5. I. Highly regioselective diastereoselective directed hydroformylation of allyl ethers. II. Highly practical and enantioselective ligands for copper-catalyzed conjugate addition. [D] . Krauss, Isaac Jonathan. 2003

机译：I.烯丙基醚的高度区域选择性非对映选择性定向加氢甲酰化。二。用于铜催化共轭加成的高度实用和对映选择性配体。
6. General and Efficient Copper-Catalyzed OxazaborolidineComplex in Transfer Hydrogenation of Isoquinolines under Mild Conditions [O] . Qianyu Du, Linpeng Liu, Taigang Zhou 2020

机译：一般高效的铜催化的恶唑罗啉在温和条件下的异喹啉转移氢化的复合物
7. General and Efficient Copper-Catalyzed Oxazaborolidine Complex in Transfer Hydrogenation of Isoquinolines under Mild Conditions [O] . Qianyu Du, Linpeng Liu, Taigang Zhou 2020

机译：温和条件下异喹啉转移氢化的一般和高效铜催化的恶唑啉络合物

Copper-catalyzed direct alpha-alkynylation of ethers under mild conditions

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