16124-23-5Relevant academic research and scientific papers
Polyvinyl trisulfonate ethylamine based solid acid catalyst for the efficient glycosylation of sugars under solvent free conditions
Chaugule, Avinash A.,Jadhav, Amol R.,Kim, Hern
, p. 104715 - 104724 (2015)
Heterogeneous Bronsted solid acid catalysts have the potential to decrease the environmental impact related to chemical production. Herein, we have synthesized polyvinyl bound trisulfonate ethylamine chloride (PV-THEAC) and polyvinyl bound disulfonate ethylamine (PV-DSEA) as Bronsted solid acid catalysts which exhibited effective catalytic activity for acid catalyzed glycosylation reactions with sugar derivatives. In particular, 0.3 equiv. of the PV-THEAC catalyst was found to be the most efficient and a reusable catalyst for glycosylation reactions. A high density of the trisulfonic group (-OSO3H) contributed to the excellent catalytic activity during glycosylation. Moreover, glycosylation reactions with d-mannose, d-xylose and d-glucose have been studied with alcohol. Remarkable acceleration of the glycosylation reaction using a glycosyltrichloroacetimidate donor was obtained with the selective production of β-glycoside.
Preparation of New Terpenyl β-D-Glucopyranosides by a Modified Koenigs-Knorr Procedure.
Ackermann, Irmtraud E.,Banthorpe, Derek V.,Fordham, William D.,Kinder, John P.,Poots, Ian
, p. 79 - 82 (2007/10/02)
Ten new hemi- and monoterpenyl β-D-glucopyranosides have been prepared by a modification of the Koenigs-Knorr procedure which utilises silver fluoroacetate as a soluble catalyst coupled with the introduction of a basic ion-exchange resin to effect the deacetylation step.Most of these compounds could not be obtained in acceptable yields using the classical procedure.
