Application of 516-12-1In 2021 ,《Chemical synthesis of the pentasaccharide repeating unit of the O-specific polysaccharide from Ruminococcus gnavus》 appeared in Carbohydrate Research. The author of the article were Pal, Debasish; Naskar, Mrinal; Bera, Anirban; Mukhopadhyay, Balaram. The article conveys some information:
The Gram-pos. bacterium Ruminococcus gnavus (R. gnavus) has been identified to be responsible for symptoms of Crohn’s disease. R. gnavas produces a glucorhamnan polysaccharide and it is postulated that this polysaccharide induces inflammatory response through toll-like receptor 4 (TLR4). The current manuscript describes the chem. synthesis of the pentasaccharide repeating unit of the O-polysaccharide from R. gnavus. The major challenge associated with this particular synthesis is the presence of two consecutive 1,2-cis glucose units. The target oligosaccharide is achieved through a linear strategy from com. available sugars through rational protecting group manipulation. 1,2-cis glycosylation of glucose through remote participation of acyl group at the 6-O position is used successfully with excellent yield. In both cases, sole 1,2-cis products are obtained at -20°C through the activation of thioglycosides. In the experiment, the researchers used many compounds, for example, 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Application of 516-12-1)
1-Iodopyrrolidine-2,5-dione(cas: 516-12-1) is used in the preparation of vinyl sulfones from olefins and benzenesulfinic acid. It acts as a source for I+ and involved in Hunsdiecker reactions for the conversion of cinnamic acids, and propiolic acids to the corresponding alfa-halostyrenes and 1-halo-1-alkynes respectively. Application of 516-12-1
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Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com