907606-02-4Relevant academic research and scientific papers
Electron-deficient pyridinium salts/thiourea cooperative catalyzed O-glycosylation via activation of O-glycosyl trichloroacetimidate donors
Shaw, Mukta,Kumar, Yogesh,Thakur, Rima,Kumar, Amit
, p. 2385 - 2395 (2017)
The glycosylation of O-glycosyl trichloroacetimidate donors using a synergistic catalytic system of electron-deficient pyridinium salts/aryl thiourea derivatives at room temperature is demonstrated. The acidity of the adduct formed by the 1, 2-addition of
Cooperative catalysis in glycosidation reactions with o-glycosyl trichloroacetimidates as glycosyl donors
Geng, Yiqun,Kumar, Amit,Faidallah, Hassan M.,Albar, Hassan A.,Mhkalid, Ibrahim A.,Schmidt, Richard R.
supporting information, p. 10089 - 10092 (2013/10/01)
Thiourea mediates cooperative glycosidation through hydrogen bonding. N,N′-Diarylthiourea as cocatalyst enforces an SN2-type acid-catalyzed glycosidation even at room temperature (see scheme; Bn=benzyl). From O-(α-glycosyl) trichloroacetimidates as glycosyl donors and various acceptors, β-glycosides are preferentially or exclusively obtained.
Silicon fluorides for acid-base catalysis in glycosidations
Kumar, Amit,Geng, Yiqun,Schmidt, Richard R.
experimental part, p. 1489 - 1499 (2012/07/14)
Adduct formation between alcohols as glycosyl acceptors and phenylsilicon trifluoride (PhSiF3) as catalyst permits acid-base-atalyzed glycosidations with O-glycosyl trichloroacetimidates as glycosyl donors. In this way, from various glycosyl do
