Phenylphosphinic Acid-Promoted Addition of Isocyanide to 1-Methoxyisochroman Derivatives
摘要:
A synthetic method for preparation of isochroman-1-carboxylamides in good to high yields by addition of isocyanides to 1-methoxyisochroman derivatives in the presence of phosphinic acid was developed. A wide range of 1-methoxyisochroman derivatives and isocyanides were suitable for this reaction.
Visible Light‐promoted C(sp3)‐H α‐Carbamoylation of Cyclic Ethers with Isocyanides
作者:Camilla Russo、Carmine Volpe、Federica Santoro、Diego Brancaccio、Anna Di Porzio、Alfonso Carotenuto、Antonio Randazzo、Laurence Grimaud、Maxime R. Vitale、Stefano Protti、Mariateresa Giustiniano
DOI:10.1002/chem.202401997
日期:2024.8.27
C(sp3)-H carbamoylation of cyclic ethers has been achieved via a domino sequence of Hydrogen AtomTransfer/RadicalPolarCrossover pathways, finally enabling the nucleophilic addition of isocyanides to oxocarbenium ions. The current method features mild reaction conditions to generate oxocarbenium ions from non-activated ethers, along with good substrate scope and functional group compatibility.