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Synthesis of 1,3-Azol-2-yl O-Heterocycles by Microwave-Irradiation-Assisted Direct C–H Functionalization
Synlett ( IF 1.7 ) Pub Date : 2018-10-02 , DOI: 10.1055/s-0037-1611012
Krisztina Kónya 1 , Zoltán Sipos
Affiliation  

A microwave-irradiation-assisted synthesis of novel 1,3-azol-2-yl-substituted O-heterocycles, namely flavones, chromones, coumarins, and chromanones, is reported. Starting from the appropriate bromo derivatives and 1,3-azoles, this palladium and copper co-catalyzed method provides moderate to good yields and excellent regioselectivity. The ligand- and base-free method can be a useful, generally applicable synthetic tool in the formation of new O-heterocycles.

中文翻译:

微波辐射辅助直接 C-H 官能化合成 1,3-Azol-2-yl O-杂环

报道了一种微波辐射辅助合成的新型 1,3-唑-2-基取代的 O-杂环,即黄酮、色酮、香豆素和色满酮。从合适的溴衍生物和 1,3-唑类开始,这种钯和铜共催化方法提供了中等至良好的产率和出色的区域选择性。无配体和无碱方法是一种有用的、普遍适用的合成工具,可用于形成新的 O-杂环。
更新日期:2018-10-02
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