Published as part of the Special Topic Modern Radical Methods and their Strategic Applications in Synthesis

Abstract

A palladium catalyst in combination with two types of phosphine ligands efficiently catalyzes direct C–H alkylation of heteroarenes with secondary and tertiary alkyl bromides under irradiation conditions. Irradiation of blue light-emitting diodes (blue LEDs) effectively excites phosphine-ligated palladium catalyst to facilitate oxidative addition with alkyl bromides, and also excites the alkylpalladium species to enable the generation of alkyl radicals to react with heteroarenes.

A palladium catalyst in combination with two types of phosphine ligands efficiently catalyzes direct C–H alkylation of heteroarenes with secondary and tertiary alkyl bromides under irradiation conditions. Irradiation of blue light-emitting diodes (blue LEDs) effectively excites phosphine-ligated palladium catalyst to facilitate oxidative addition with alkyl bromides, and also excites the alkylpalladium species to enable the generation of alkyl radicals to react with heteroarenes.

中文翻译：

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辐照诱导钯催化杂芳烃与叔烷基溴和仲烷基溴的直接C–H烷基化

作为特别主题“现代自由基方法及其在合成中的战略应用”的一部分发布

抽象的

钯催化剂与两种类型的膦配体结合可以有效地催化在辐照条件下用仲烷基和叔烷基溴化物直接催化杂芳烃的直接C–H烷基化。蓝色发光二极管（蓝色LED）的辐照有效地激发了膦连接的钯催化剂，以促进烷基溴化物的氧化加成，并且还激发了烷基钯物质，从而使烷基自由基的产生与杂芳烃反应。

钯催化剂与两种类型的膦配体结合可以有效地催化在辐照条件下用仲烷基和叔烷基溴化物直接催化杂芳烃的直接C–H烷基化。蓝色发光二极管（蓝色LED）的辐照有效地激发了膦连接的钯催化剂，以促进烷基溴化物的氧化加成，并且还激发了烷基钯物质，从而使烷基自由基的产生与杂芳烃反应。