A <i>para</i>
-C-H Functionalization of Aniline Derivatives via In situ Generated Bulky Hypervalent Iodinium Reagents
作者:Chao Tian、Xu Yao、Weizhe Ji、Qian Wang、Guanghui An、Guangming Li
DOI:10.1002/ejoc.201801058
日期:2018.11.25
A general para‐selective C‐H functionalization was achieved via a steric control strategy. Para‐iodo, bromo, chloro, nitro, and trifluormethyl aniline derivatives were prepared via in situ generated, bulky hypervalent iodinium reagents in as little as 10 min. Products can be purified without column chromatography or recrystallization, which significantly reduces the waste and simplifies the work‐up
通过空间控制策略可实现一般的对选择性C-H功能化。对碘,溴,氯,硝基和三氟甲基苯胺衍生物可在短短10分钟内通过原位生成的大体积高价碘试剂制备。无需柱色谱或重结晶即可纯化产品,从而大大减少了浪费并简化了后处理过程。