144101-21-3Relevant academic research and scientific papers
Stereoselective organocatalyzed glycosylations-thiouracil, thioureas and monothiophthalimide act as Br?nsted acid catalysts at low loadings
Bradshaw,Colgan,Allen,Pongener,Boland,Ortin,McGarrigle
, p. 508 - 514 (2019/01/10)
Thiouracil catalyzes stereoselective glycosylations with galactals in loadings as low as 0.1 mol%. It is proposed that in these glycosylations thiouracil, monothiophthalimide, and the previously reported catalyst, Schreiner's thiourea, do not operate via
Stereoselective Synthesis of 2-Deoxyglycosides from Glycals by Visible-Light-Induced Photoacid Catalysis
Zhao, Gaoyuan,Wang, Ting
supporting information, p. 6120 - 6124 (2018/05/03)
The direct, photoacid-catalyzed synthesis of 2-deoxyglycosides from glycals is reported. A series of phenol-conjugated acridinium-based organic photoacids were rationally designed, synthesized, and studied alongside the commercially available phenolic catalyst eosin Y. In the presence of such a photoacid catalyst and light, synthetic glycals were activated and coupled with a range of alcohols to afford 2-deoxyglycosides in good yields and with excellent α-selectivity.
2-Deoxyglycosyl 3-benzoylpropionates as novel donors for the direct and stereoselective synthesis of 2-deoxy-glycosides
Bandi, Ramakrishna,Chalapala, Sudharani,Chandrasekaran, Srinivasan
, p. 2248 - 2257 (2018/04/05)
Lewis acid mediated stereoselective synthesis of 2-deoxy-O-glycosides has been demonstrated using 2-deoxyglycosyl 3-benzoylpropionates as novel glycosyl donors. These newly developed donors are easily synthesized from simple glycals, are stable at room te
Reagent-Controlled α-Selective Dehydrative Glycosylation of 2,6-Dideoxy- and 2,3,6-Trideoxy Sugars
Nogueira, Jason M.,Bylsma, Marissa,Bright, Danielle K.,Bennett, Clay S.
supporting information, p. 10088 - 10092 (2016/08/16)
We have found that activating either 2,3-bis(2,3,4-trimethoxyphenyl)cyclopropenone or 2,3-bis(2,3,4-trimethoxyphenyl)cyclopropene-1-thione with oxalyl bromide results in the formation of a species that promotes the glycosylation between 2,6-dideoxy-sugar hemiacetals and glycosyl acceptors in good yield and high α-selectivity. Both reactions are mild and tolerate a number of sensitive functional groups including highly acid-labile 2,3,6-trideoxy-sugar linkages.
Stereoselective synthesis of 2-deoxyglycosides by use of 2-deoxypyranosyl dithiocarbamates as donors
Wandzik,Szeja
, p. 1163 - 1170 (2007/10/03)
Glycosides, derivatives of 2-deoxysugars can be conveniently prepared by treatment of glycosyl dithiocarbamates (glycosyl donors) with hydroxy compounds (glycosyl acceptors) in the presence of thiophilic compounds as activators.
A Stereocontrolled Construction of 2-Deoxy-β-glycosidic Linkages via 1,2-trans-β-Glycosidation of 2-Deoxy-2-glycopyranosyl N,N,N',N'-Tetramethylphosphoroamidates
Hashimoto, Shun-ichi,Yanagiya, Yuki,Honda, Takeshi,Ikegami, Shiro
, p. 1511 - 1514 (2007/10/02)
A stereocontrolled synthesis of 2-deoxy-β-glycosides has been achieved by developing a salient 1,2-trans-glycosidation method with 2-deoxy-2-glycopyranosyl N,N,N',N'-tetramethylphosphoroamidates as glycosyl donors followed by a redu
