Expedient Iron-Catalyzed C−H Allylation/Alkylation by Triazole Assistance with Ample Scope
作者:Gianpiero Cera、Tobias Haven、Lutz Ackermann
DOI:10.1002/anie.201509603
日期:2016.1.22
for the iron‐catalyzed C−H allylation of arenes, heteroarenes, and alkenes with ample scope. The versatile catalyst also proved competent for site‐selective methylation, benzylation, and alkylation with challenging primary and secondary halides. Triazole‐assisted C−H activation proceeded chemo‐, site‐, and diastereo‐selectively, and the modular TAM directing group was readily removed in a traceless
三唑的协助为广泛范围内的芳烃,杂芳烃和烯烃的铁催化的CHH烯丙基化的统一策略奠定了基础。事实证明,这种多功能催化剂还可胜任具有选择性的一级和二级卤化物的定点甲基化,苄基化和烷基化。三唑辅助的CH活化是化学,位点和非对映选择性的,在极温和的反应条件下,模块化TAM导向基团很容易以无痕方式除去。