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Copper(I) Iodide-Catalyzed (Het)arylation of Diethyl Malonate with (Het)aryl Bromides by Using 1,3-Benzoxazole as a Ligand
Synlett ( IF 2 ) Pub Date : 2017-10-26 , DOI: 10.1055/s-0036-1591210
Zheng Fang 1 , Kai Guo 1, 2 , Yu Zeng 1 , Hao-liang Zheng 3 , Zhao Yang 4 , Cheng-Kou Liu 1
Affiliation  

An efficient Ullmann-type coupling of aryl bromides with diethyl malonate in the presence of copper(I) iodide and 1,3-benzoxazole is presented. This method has a broad substrate scope (heterocyclic and phenyl bromides) and good functional-group tolerance (OMe, Me, Ac, CN, NO2, F, and Cl). Moreover, less time is needed to reach full conversion (3–9 hours).

中文翻译:

以 1,3-苯并恶唑为配体,碘化铜 (I) 催化丙二酸二乙酯与 (杂) 芳基溴化物的 (杂) 芳基化

提出了在碘化铜 (I) 和 1,3-苯并恶唑存在下芳基溴化物与丙二酸二乙酯的有效 Ullmann 型偶联。该方法具有广泛的底物范围(杂环和苯基溴化物)和良好的官能团耐受性(OMe、Me、Ac、CN、NO2、F 和 Cl)。此外,达到完全转化所需的时间更少(3-9 小时)。
更新日期:2017-10-26
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