Alkynylation of Csp2
(O)-H Bonds Enabled by Photoredox-Mediated Hydrogen-Atom Transfer
作者:Satobhisha Mukherjee、R. Aleyda Garza-Sanchez、Adrian Tlahuext-Aca、Frank Glorius
DOI:10.1002/anie.201708037
日期:2017.11.13
(HAT) strategies within the framework of photoredox catalysis is highly appealing for its power to activate a desired C−H bond in the substrate leading to its selective functionalization. Reported here is the first photoredox‐mediated hydrogen‐atom transfer method for the efficient synthesis of ynones, ynamides, and ynoates with high regio‐ and chemoselectivity by direct functionalization of C (O)−H
在光氧化还原催化框架内,新的氢原子转移(HAT)策略的开发极具吸引力,因为它具有激活基质中所需的CH键的能力,从而导致其选择性功能化。此处报道的是第一种通过光氧化还原介导的氢原子转移方法,可通过C (O)-H键的直接官能化有效合成具有高区域和化学选择性的炔酮,乙酰胺和壬酸酯。该方法的广泛合成应用已通过复杂分子支架中C(O)-H键的选择性功能化得到了证明。