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(+)-Catechin: Benzoyl Protection of OH Groups and NMR Study of Products

R. Marek, A. de Degroot, R. Dommisse, G. Lemiére, and M. Potáček

Department of Organic Chemistry, Faculty of Science, Masaryk University, CZ-611 31 Brno, Czech Republic

 

Abstract: Several benzoyl esters of (+)-catechin [(2R,3S)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-benzo[b]-pyran-3,5,7-triol] have been synthesized by the dicyclohexylcarbodiimide promoted condensation of (+)-catechin hydroxy groups with benzoic acid. All the products were identified by MS, 1H  and 13C  NMR spectroscopy. The determination of the esterification position was carried out by long-range INEPT pulse sequence.

Full paper in Portable Document Format: 512a107.pdf

 

Chemical Papers 51 (2) 107–110 (1997)

Thursday, February 27, 2020

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