95580-98-6Relevant academic research and scientific papers
Sonochemistry: A powerful way of enhancing the efficiency of carbohydrate synthesis
Deng, Shenglou,Gangadharmath, Umesh,Chang, Cheng-Wei Tom
, p. 5179 - 5185 (2007/10/03)
Using sonication as a means of facilitating organic reactions in carbohydrate chemistry was explored under the conditions used for traditional organic synthesis. An array of representative reactions, including hydroxy group manipulation (acylation, protection/deprotection, acyl group migration), thioglycoside synthesis, azidoglycoside synthesis, 1,3-dipolar cycloaddition and reductive cleavage of benzylidene, commonly used in the synthesis of carbohydrate derivatives was examined. A series of glycosylation reactions that employ thioglycosides, glycosyl trichloroacetimidate, glycosyl bromide and glycosyl acetate as the glycosyl donors was also examined. Our results demonstrate that sonication can significantly shorten the reaction time, enhance the reactivity of reactant and lead to superior yield and excellent stereoselectivity. More importantly, a general protocol of glycosylation may finally be developed. Sonication is compatible to the conditions used for traditional organic synthesis. We believe that sonication can also be applied to other areas of synthetic processes.
APPLICATION OF PHENYL 1-SELENOGLYCOSIDES IN THE SYNTHESIS OF A CELL-WALL TETRAMERIC FRAGMENT OF PROTEUS VULGARIS STRAIN 5/43
Zuurmond, H. M.,Klein, P. A. M. van der,Wildt, J. de,Marel, G. A. van der,Boom, J. H. van
, p. 323 - 340 (2007/10/02)
DAST-assisted rearrangement of 3-O-allyl-4-O-benzyl-α-L-rhamnopyranosyl azide followed by treatment of the generated fluorides with ethanethiol and BF3*OEt2 gave glycosyl donor ethyl 3-O-allyl-2-azido-4-O-benzyl-2,6-dideoxy-1-thio-α/β-L-glucopyranoside.St
