Regiochemical aspects in the reaction of 2,3,5-tri-o-benzoyl-d-ribofuranosyl
作者:Yayoi S. Yokoyma、M.R.H. Elmoghayar、Isao Kuwajima
DOI:10.1016/s0040-4039(00)87428-6
日期:1982.1
In the reaction with silyl enol ethers catalyzed by stannicchloride, 2,3,5-tri-O-benzoyl-D-ribofuranosyl acetate behaves as an ambident electrophile; silyl enol ethers of ketones having α-hetero substituents afford C-1 adducts, whereas those of usual acyclic ketones give products arising from attack on C-2 benzoxyl group.