Photochemical C–H acetalization of O-heterocycles utilizing phenylglyoxylic acid as the photoinitiator
作者:Giorgos S. Koutoulogenis、Nikoleta Spiliopoulou、Christoforos G. Kokotos
DOI:10.1007/s43630-021-00126-7
日期:2022.5
easy-to-execute procedure for the C-H acetalization of O-heterocycles via visible light activation is presented, utilizing phenylglyoxylic acid as the photoinitiator. Biomass-derived O-heterocycles, like THF, can be employed, while primary, secondary alcohols and alcohols bearing a variety of functionalities were succesfully employed, affording the desired acetals in high yields. Facile acidic deprotection
提出了一种利用苯乙醛酸作为光引发剂,通过可见光活化对 O-杂环进行 CH 缩醛化的新型、温和、无金属且易于执行的程序。可以使用生物质衍生的 O-杂环,如 THF,而伯醇、仲醇和具有多种官能团的醇被成功使用,以高收率提供所需的缩醛。还进行了简单的酸性脱保护。