790685-10-8Relevant academic research and scientific papers
Facile conversion of O-silyl protected sugars into their corresponding formates using POCl3·DMF complex
Andrade, Marta M.,Barros, M. Teresa
, p. 9235 - 9243 (2007/10/03)
The direct O-formylation of two selectively protected sugar derivatives using the Vilsmeier-Haack (V-H) complex POCl3·DMF was studied. Primary O-TBDMS and O-TBDPS ethers of sucrose, the most common disaccharide, underwent regio and chemoselecti
Fast galloylation of a sugar moiety: Preparation of three monogalloylsucroses as references for antioxidant activity. A method for the selective deprotection of tert-butyldiphenylsilyl ethers
Barros,Maycock,Sineriz,Thomassigny
, p. 6511 - 6516 (2007/10/03)
Three protected new gallotannins, namely the 6'-O-(tri-O-methylgalloyl)-2,3,4,6,1',3',4'-hepta-O-acetylsucrose, the 6'-O-(tri-O-methylgalloyl)-2,3,4,6,1',3',4'-hepta-O-benzoylsucrose and the 6,6'-di-O-tert-butyldiphenylsilyl-1'-O-(tri-O-methylgalloyl)-2,3, 4,3',4'-penta-O-acetylsucrose have been prepared in four short sequences from sucrose. Methods for rapid galloylation have been studied in order to avoid simultaneous acyl transfer reactions. A method for the deprotection of a tert-butyldiphenylsilyl ether has been developed which avoids the intramolecular migration of a benzoate group. (C) 2000 Elsevier Science Ltd.
