Glycosyl fluorides from <i>n</i>-pentenyl-related glycosyl donors — Application to glycosylation strategies
作者:Bert Fraser-Reid、J. Cristobal Lopez、Paloma Bernal-Albert、Ana M. Gomez、Clara Uriel、Juan Ventura
DOI:10.1139/cjc-2012-0285
日期:2013.1
fluorides by a variety of methods. In the case of NPGs, Barluenga’s reagent, bis(pyridinium)iodonium(I)tetrafluoroborate (IPy2BF4), gives good yields of glycosyl fluorides when HF–pyridine complex is used as an additional fluoride source. NPOEs can be activated either by a combination of electrophilic iodonium (Barluenga’s reagent) and HBF4 or by the action of HF–pyridine complex. The ensuing glycosyl
IPy<sub>2</sub>BF<sub>4</sub>-Mediated Transformation of <i>n</i>-Pentenyl Glycosides to Glycosyl Fluorides: A New Pair of Semiorthogonal Glycosyl Donors
作者:J. Cristóbal López、Clara Uriel、Alejandra Guillamón-Martín、Serafín Valverde、Ana M. Gómez
DOI:10.1021/ol070753r
日期:2007.7.1
Bis(pyridinium) iodonium(I) tetrafluoroborate (IPy2BF4), a solid and stable reagent, can be used to transform n-pentenyl orthoesters (NPOEs) and n-pentenyl glycosides (NPGs) into glycosyl fluorides. The latter pair constitutes a new set of semiorthogonal glycosyl donors that can be used in glycosylation strategies, alone or in combination with NPOEs.