Acyl radicals are invaluable intermediates in organic synthesis, however their generation remains challenging. Herein, we present an unprecedented light‐driven, cobalt‐catalysed method for the generation of acyl radicals from readily available 2‐S‐pyridyl thioesters. The synthetic potential of this methodology was demonstrated in the Giese‐type acylation of activated olefins in the presence of heptamethyl
Direct acylation and alkynylation of hydrocarbons <i>via</i> synergistic decatungstate photo-HAT/nickel catalysis
作者:Wenfeng Liu、Yang Ke、Chuhan Liu、Wangqing Kong
DOI:10.1039/d2cc04408k
日期:——
Herein, we describe a protocol for the direct and selective acylation and alkynylation of the C(sp3)–H bonds of saturated hydrocarbons by synergistic decatungstate photo-HAT and nickel catalysis. This method, using cheap and easy-to-synthesize TBADT as a HAT photocatalyst, exhibits excellent siteselectivity. A wide variety of high-value ketones, amides, esters, and diverse alkynes can be efficiently
在这里,我们描述了一种通过协同十钨酸盐光-HAT 和镍催化对饱和烃的 C(sp 3 )-H 键进行直接和选择性酰化和炔基化的方案。该方法使用廉价且易于合成的 TBADT 作为 HAT 光催化剂,具有优异的位点选择性。从丰富的碳氢化合物原料中可以有效地构建各种高价值的酮、酰胺、酯和各种炔烃。
Samarium diiodide-mediated pinacolization of diketones—II. Synthesis of polycyclic frameworks containing a cyclobutane-1,2-diol and a cyclopentane-1,2-diol