Selective deuteration over raney nickel in deuterium oxide: Methyl glycosides
作者:Stephen J. Angyal、John D. Stevens、Léon Odier
DOI:10.1016/0008-6215(86)85061-3
日期:1986.12
by deuterated Raney nickel in deuterium oxide, in various positions in methyl glycopyranosides and furanosides has been studied. In general, the exchange process is not highly regio-selective in these compounds. However, conditions were found under which methyl β- d -fructopyranoside can be selectivelylabelled on C-5, methyl β- d -fructofuranoside on C-3, and methyl β- d -galactopyranoside on C-3
Site-Selective, Copper-Mediated <i>O</i>-Arylation of Carbohydrate Derivatives
作者:Victoria Dimakos、Graham E. Garrett、Mark S. Taylor
DOI:10.1021/jacs.7b09420
日期:2017.11.1
site-selective, copper-promoted couplings of boronic acids with carbohydrate derivatives. These reactions generate sugar-derived aryl ethers, a structural class that is challenging to generate by other means and has not previously been accessed in a site-selective fashion. Experimental evidence and computational modeling suggest that the formation of a sugar-derived boronic ester intermediate is crucial to the
Diterpene glycosides and other constituents from argentinian baccharis species
作者:C. Zdero、F. Bohlmann、R.M. King、H. Robinson
DOI:10.1016/s0031-9422(00)83754-1
日期:1986.1
investigation of the aerial parts of nine Baccharis species from Argentina gave 37 new compounds, seven ent -clerodanes, 13 ent -labdanes, two friedolabdanes, a nor-labdane ketone, seven coumaric acid derivatives, two umbelliferone derivatives, a flavanone, three sesquiterpenes including a nor-furanocadinene and a propiophenone derivative. Ten of the diterpenes were glycosides. The structures and the configurations
Relations between Rotatory Power and Structure in the Sugar Group. XXXIII. The Alpha and Beta Methyl Pyranosides of L-Fucose (L-Galactomethylose) and their Triacetates