Visible-light-absorbing C–N cross-coupling for the synthesis of hydrazones involving C(sp<sup>2</sup>)–H/C(sp<sup>3</sup>)–H functionalization
作者:Ambuj Kumar Kushwaha、Suresh Kumar Maury、Arsala Kamal、Himanshu Kumar Singh、Shikha Pandey、Sundaram Singh
DOI:10.1039/d2cc07001d
日期:——
An efficient C–N cross-coupling approach for the synthesis of hydrazones was developed through C(sp2)–H and C(sp3)–H functionalization of indole and methylarene under visible light irradiation using photocatalyst eosin Y, ethanol:water as a green solvent and atmospheric air as an oxidant. With the aid of eosin Y, the C–H bonds of indole and methylarenes were activated followed by coupling with arylhydrazines
通过 C(sp 2 )–H 和 C(sp 3)–H 功能化吲哚和甲基芳烃在可见光照射下使用光催化剂曙红 Y,乙醇:水作为绿色溶剂和大气空气作为氧化剂。在曙红 Y 的帮助下,吲哚和甲基芳烃的 C-H 键被激活,然后与芳基肼偶联。该程序适用于具有良好官能团相容性的各种底物,提供了一种创造性的方法,可以用廉价且易于获得的原材料制造腙。没有金属、低成本、环境友好、绿色溶剂、无毒、易于处理以及利用可见光等可再生能源是该方法的一些主要优势。