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Communication | Regular issue | Vol 29, No. 11, 1989, pp.2061-2064
Published online, 1st January, 1970
DOI: 10.3987/COM-89-5120
Enzyme-mediated Acylation of Flavonoid Monoglycosides

Bruno Danieli,* Paolo De Bellis, Giacomo Carrea, and Sergio Riva*

*Dipartimento di Chimica Organica e Industriale, Centro C. N. R., Università degli Studi di Milano, V. Venezian 21, I-20133 Milano, Italy

Abstract

Subtilisin catalyzes the reaction of the flavonoid glucosides 1 and 3 with trifluoroethyl butanoate (CH3CH2CH2COOCH2CF3) in pyridine to afford the corresponding 3”-O-mono-, 6”-O-mono-, and 3”,6”-O-diacyl derivatives, while the rhamnoside 2 is unaffected.