Thioglycosylation
WebJun 27, 2006 · A novel, green chemistry, glycosylation strategy was developed based upon the use of ionic liquids. Research studies demonstrated that thiomethyl glycosides could readily be activated with methyl trifluoromethane sulfonate, using 1-butyl-3-methylimidazolium tetrafluoroborate as a solvent. This green … WebSep 27, 2006 · Representative Procedure for the catalytic thioglycosylation In a 25-mL, two-necked, round-bottomed flask equipped with an addition funnel was placed MoO 2Cl 2 (5.9 mg, 0.03 mmol, 3 mol%) followed by addition of anhydrous CH 2Cl 2 (1 mL). To this solution was slowly added a solution of a per-acetylated sugar (1 mmol) in CH 2Cl 2 (3 mL) at
Thioglycosylation
Did you know?
WebApr 30, 2014 · They employed a non-malodorous thioglycosylation methodology to promote β-glycosylation reactions. 2-methoxycarbonylphenyl 1-thioglycosides protected with O-benzyl groups (36, 40), and chiral sn-glycerol 37 which was used as the acceptor to avoid racemization, were chosen for the synthesis of diglycosyldiacylglycerols. All the … WebMar 28, 2024 · This work reported that two comprehensive series of aryl and benzyl thioglycosides were obtained via a combination of thiosulfates with glycals derived from glucose, arabinose, galactose, and rhamnose and achieved selectivity via stereospecific [2,3]-sigma rearrangements of α-sulfoxide-rhamnoside and α-methine-glucoside. Expand 4 …
WebFeb 13, 2006 · A novel, green chemistry, glycosylation strategy was developed based upon the use of ionic liquids. Research studies demonstrated that thiomethyl glycosides could readily be activated with methyl trifluoromethane sulfonate, using 1-butyl-3-methylimidazolium tetrafluoroborate as a solvent. WebDec 14, 2024 · Thioglycosides are an important class of sugars, since they can be used as non-ionic biosurfactants, biomimetic glycosides, and building blocks for carbohydrate …
WebJun 1, 2024 · This study describes the β-selective thioglycosylation of 1,2,4-O-orthoacetyl-α-d-glucose. Indium (III) bromide catalyzes the reaction in trifluoromethylbenzene at ambient temperature in the... WebIn the new thioglycosylation reaction, critically (TMS) 3 SiOH was identified as a HAT reagent, which could efficiently suppress the undesired reduction of the radical 8 . This …
WebThe recyclability of [bmim]BF4 for thioglycosylation reactions was accessed by repeating the synthesis of 3a, 4a and 3c. In brief, upon completion of the thioglycosylation reaction and extraction of the products, the ionic liquid was washed, filtered through a pad of Celite, and dried at 70°C, under reduced pres-sure.
WebAn efficient thioglycosylation of C(sp 2)−H bonds with thiosugars has been established for the first time. Using only Cu(OAc) 2 ⋅H 2 O as a catalyst and Ag 2 CO 3 as an additive in … bus grenoble vizillebus grève jeudiWebNov 18, 2009 · In summary, we developed a handy approach for the thioglycosylation of peracetylated saccharides by using an in situ prepared FeI 3 catalyst made from cheap iodine and metal iron in CH 2 Cl 2 solution. busha bizualem journalWebIn our own efforts, recently we have developed visible-light-mediated glycosyl radical reactions for the synthesis of C -glycosides. 15 In addition, we reported an organophotocatalytic thiolation of acyl radical method with thiosulfonates. 20 These chemistries guided us to explore a new thioglycosylation reaction. bush 41\u0027s vpWebNucleophilic Thioglycosylation of Pentafluorophenyl-Substituted Porphyrinoids: Synthesis of Glycosylated Calix[n]phyrin and [28]Hexaphyrin Systems. Organic Letters 2024, 21 (14) , … busha browne\u0027s jerkWebINIS Repository Search provides online access to one of the world's largest collections on the peaceful uses of nuclear science and technology. The International Nuclear Information System is operated by the IAEA in collaboration with over 150 members. busha browne\\u0027s jerkWebDirect, stereoselective thioglycosylation enabled by an organophotoredox radical strategy. Peng Ji, Yueteng Zhang, Feng Gao, Fangchao Bi, Wei Wang. Research output: Contribution to journal › Article › peer-review. 7 Scopus citations. Overview; Fingerprint; Abstract. bus handoyo jogja bogor