4.4 Article

Photochemical C-H acetalization of O-heterocycles utilizing phenylglyoxylic acid as the photoinitiator

期刊

PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
卷 21, 期 5, 页码 687-694

出版社

SPRINGERNATURE
DOI: 10.1007/s43630-021-00126-7

关键词

Photoorganocatalysis; Photochemical C-H acetalization; Phenylglyoxylic acid; Photoinitiator

资金

  1. Hellenic Foundation for Research and Innovation (HFRI) [721]
  2. Stavros Niarchos Foundation (SNF)
  3. 1st Call for H.F.R.I. Research Projects to Support Faculty Members and Researchers [655]

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A novel, mild, metal-free procedure for the C-H acetalization of O-heterocycles via visible light activation using phenylglyoxylic acid as the photoinitiator is presented. Biomass-derived O-heterocycles such as THF can be used, and a variety of alcohols with different functionalities can be successfully employed to afford the desired acetals in high yields. Convenient acidic deprotection was also carried out.
A novel, mild, metal-free and 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 was also performed.

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