625371-09-7Relevant articles and documents
Biomimetic one-pot preparation of a black tea polyphenol theasinensin A from epigallocatechin gallate by treatment with copper(II) chloride and ascorbic acid
Shii, Takuya,Miyamoto, Makoto,Matsuo, Yosuke,Tanaka, Takashi,Kouno, Isao
, p. 1183 - 1185 (2011)
Chromatographic separation of black tea polyphenols is too difficult to supply sufficient quantities of pure compounds for biological experiments. Thus, facile methods to prepare black tea constituents were desired. Treatment of epigallocatechin gallate w
Isolation of key intermediates during formation of oolongtheanins
Hirose, Sayumi,Tomatsu, Kaoru,Yanase, Emiko
supporting information, p. 7040 - 7043 (2013/12/04)
Oolongtheanin-3′-O-gallate (2b) was obtained by treatment of (-)-EGCg (1d) with CuCl2. This transformation was achieved over three steps, with the isolation of two intermediates; their chemical structures were determined through derivatization