Visible‐Light Photoredox Alkylation of Heteroaromatic Bases Using Ethyl Acetate as Alkylating Agent
作者:Nándor Győrfi、András Kotschy、Márió Gyuris
DOI:10.1002/ejoc.202001113
日期:2020.11.8
The direct Csp2‐Csp3 visible‐light photoredox cross‐dehydrogenative coupling of N‐heteroaromatics with ethyl acetate via the generation of 1‐acetoxyethan‐1‐yl radical is reported. This approach also uncovers ethyl acetate as a cheap and non‐conventional radical source in photoredox related organic synthesis.
dimethylmalonate anion in the presence of a Pd(0) catalyst to give products of nucleophilicsubstitution and/or byproducts, depending upon the substitution pattern. The observed side reactions were reduction in the case of primary acetates and elimination or elimination/Michael-type addition sequence for secondary substrates.