01240nas a2200169   4500008004100000022001400041245008500055210006900140260007100209300001400280490000700294520057800301100002900879700002400908700002000932856011800952       2009                        eng d  a0022-326300aOrthogonal activation of propargyl and n-pentenyl glycosides and 1,2-orthoesters0 aOrthogonal activation of propargyl and npentenyl glycosides and   a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcDEC  a9233-92360 v743 a<p>An orthogonal activation strategy with propargyl and n-pentenyl glycosides has been identified. According to this methodology, n-pentenyl glycosides can be selectively activated with NIS/TMSOTf in the presence of either armed or disarmed propargyl O-glycosides. In addition, we report herein that propargyl 1,2-orthoesters can be selectively activated with AuBr(3) in CH(2)Cl(2) at room temperature in the presence of n-pentenyl glycosides. Similarly, pentenyl 1,2-orthoesters can be selectively activated with NIS/Yb(OTf)(3) in the presence of propargyl glycosides.</p>1 aVidadala, Srinivasa, Rao1 aThadke, Shivaji, A.1 aHotha, Srinivas  uhttps://library.ncl.res.in/content/orthogonal-activation-propargyl-and-n-pentenyl-glycosides-and-12-orthoesters-0