128100-62-9Relevant academic research and scientific papers
Friedel-Crafts catalysts as assistants in the tritylation of less reactive hydroxyls
Bernini, Roberta,Maltese, Maurizio
supporting information; experimental part, p. 4113 - 4116 (2010/08/19)
Less reactive hydroxyls, such as those present in secondary alcohols and in some primary alcohols, phenols and carboxylic acids, were easily tritylated with the homogeneous assistance of equimolar quantities of chlorides of di- and trivalent metals in apr
Direct glycosylation of protected O-tritylserine esters and oligopeptides
Rajca, Andrzej,Wiessler, Manfred
, p. 123 - 136 (2007/10/03)
N-Fmoc-3-O-Tr-L-serine methyl and benzyl esters, as well as a tripeptide FmocAlaSer(Tr)GlyOBn were directly glycosylated by 3,4,6-tri-O-acetyl-1,2-O-(1-cyanoethylidene)-α-D-galactopyranose in the presence of TrClO4 in dichloromethane, yielding 32-57percent of N-Fmoc-3-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-L-serine esters and the corresponding tripeptide.Keywords: Glycosylation; N-9-Fluorenylmethoxycarbonyl-O-tritylserine esters; Serine glycosides; Serine glycopeptides; Cyanoethylidene condensation
