Photo-induced glycosylation using the edible polyphenol curcumin.

Org Biomol Chem

Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.

Published: July 2024

Photo-induced glycosylations of trichloroacetimidate donors and alcohols using an edible polyphenol, curcumin, were examined under visible photo-irradiation (470 nm). It was found, for the first time, that these glycosylations proceed smoothly under mild reaction conditions to give the corresponding glycosides in high yields. In addition, the present glycosylation method was applicable to a wide range of trichloroacetimidate donors and alcohol acceptors and showed high chemoselectivity over glycosyl phosphite, phosphate, (-phenyl)trifluoroacetimidate, fluoride, glycal and thioglycoside.

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http://dx.doi.org/10.1039/d4ob00624kDOI Listing

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