Silylation of 2H-indazoles by photoinduced hydrogen atom transfer catalysis

被引：8

作者：

Das, Krishna Kanta ^{[1
]}

Hajra, Alakananda ^{[1
]}

机构：

[1] Visva Bharati Cent Univ, Dept Chem, Santini Ketan 731235, W Bengal, India

来源：

ORGANIC & BIOMOLECULAR CHEMISTRY | 2024年 / 22卷 / 05期

关键词：

CROSS-COUPLING REACTIONS; C-H SILYLATION; SILICON CHEMISTRY; BOND; FUNCTIONALIZATION; HETEROARENES; DERIVATIVES; DESIGN; ACCESS;

D O I：

10.1039/d3ob01925j

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A metal-free, visible-light-mediated C-H silylation of 2H-indazoles with triphenylsilane has been developed employing 4CzIPN as a photocatalyst and triisopropylsilanethiol as a hydrogen atom transfer (HAT) reagent under aerobic reaction conditions. This method shows tolerance toward many functional groups and affords a variety of silylated indazoles at up to 89% yield. The experimental results suggest that the reaction progresses through a radical pathway.

引用

页码：1034 / 1037

页数：4

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