256390-79-1Relevant academic research and scientific papers
Anomeric effects of sulfones
Chen, Guangwu,Franck, Richard W.,Yang, Guangli,Blumenstein, Michael
, p. 894 - 899 (2007/10/03)
The anomeric effect of the sulfone group in tetrahydropyrans has been determined. The value is >2 kcal mol-1, which is larger than the A-value of a methyl group but less than the A-value of the sulfone in a tetrahydropyran. Hence, in an unsubstituted tetrahydropyranyl sulfone, the equatorial conformer predominates, whereas in a properly substituted methyltetrahydropyranyl sulfone, an axial sulfone is preferred over an axial methyl group.
Convergent C-glycolipid synthesis via the Ramberg-Baecklund reaction: active antiproliferative glycolipids.
Yang,Franck,Byun,Bittman,Samadder,Arthur
, p. 2149 - 2151 (2008/02/10)
[formula: see text] A novel methodology has been developed, employing the Ramberg-Baecklund rearrangement and ionic hydrogenation to synthesize C-glycosides with high stereoselectivity at the anomeric center. The C-glycolipid 14b exhibits antiproliferativ
