Approximate o h ring conformation of 2,3- -carbonate protected α- and β- -rhamnopyranosides as confirmed by x-ray crystallography

HIGHLIGHTS

• who: Iva from the Department of Chemistry, University of Illinois at Chicago, Chicago, IL, USA have published the research work: Approximate O H ring conformation of 2,3- -carbonate protected u03b1- and u03b2- -rhamnopyranosides as confirmed by X-ray crystallography, in the Journal: (JOURNAL)

SUMMARY

The stereocontrolled synthesis of the β-manno- and rhamnopyranosides has long been recognized as a significant challenge in carbohydrate chemistry. The first direct8 solutions to this problem, variants on the venerable Koenigs Knorr reaction, employed the α-mannosyl9 and rhamnosyl10 bromides 1 and 2 carrying the 2,3-O-carbonate . . .

 



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