84274-52-2

Upstream product

• 87087-62-5 6-galloyl-1-O-(4-gallate)-glucopyranose 
• 149-91-7 3,4,5-trihydroxybenzoic acid 
• 83553-80-4 3,5-Di-O-acetylgallussaeuremethylester 
• 102019-30-7 4-O-benzyl-3,5-diacetoxybenzoic acid methyl ester 
• 91925-82-5 3,5-dihydroxy-4-(phenylmethoxy)benzoic acid methyl ester 
• 99-24-1 methyl galloate 
• 114103-31-0 3,5-Di-O-acetyl-4-O-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)gallussaeuremethylester 

Downstream Products

• 80220-30-0 4-O-(6-O-Sulfo-β-D-glucopyranosyl)gallussaeure 

Relevant academic research and scientific papers

VOM RADIOAKTIVEN CONIFERIN ZUM MARKIERTEN TURGORIN

The first Periodic Leaf Movement Factor ("PLMF 1"), 4-O-(β-D-glucopyranosyl 6-sulfate)gallic acid (1), which is chemonastically active on Mimosa pudica L., and its (14)C-carboxyl-labelled analog were synthesized by Koenigs-Knorr reaction of a D-glucose derivative with a suitably blocked gallic acid to give 4-O-β-D-glucopyranosylgallic acid after deblocking.Regioselective sulfatation with sulfur trioxide-pyridine afforded 1.The (14)C-labelled analog was prepared via regioselective glucosylation of methyl galloate with 2,3,4,6-tetra-D-acetyl-α-D-glucopyranosyl bromide and subsequent sulfatation of the deblocked glucoside.

Tannins and Related Compounds. X. Rhubarb (2): Isolation and Structures of a Glycerol Gallate, Gallic Acid Glucoside Gallates, Galloylglucoses and Isolindleyin

Six tannin-related compounds (I-VI) have been isolated from commercial rhubarb, and their structures have been established on the basis of chemical and spectroscopic data to be 1-O-galloylglycerol (I), gallic acid 3-O-β-D-(6'-O-galloyl)-glucopyranoside (II), gallic acid 4-O-β-D-(6'-O-galloyl)-glucopyranoside (III), 1,6-di-O-galloyl-β-D-glucose (IV), 6-O-galloylglucose (V) and 4-(4'-hydroxyphenyl)-2-butanone 4'-O-β-D-(2"-O-galloyl)-glucopyranoside (VI, named isolindleyin).Keywords - rhubarb; Polygonaceae; glycerol gallate; gallic acid glucoside gallate; galloylglucose; isolindleyin; tannin-related compound