Crich David, Banerjee Abhisek, Li Wenju, Yao Qingjia
Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, USA.
J Carbohydr Chem. 2005;24(4-6):415-424. doi: 10.1081/CAR-200066978.
An improved protocol for the large scale production of 1-benzenesulfinyl piperidine and other sulfinamides is described. It is demonstrated that 1-benzenesulfinyl pyrrolidine and N,N-diethyl benzenesulfinamide function analogously to 1-benzenesulfinyl piperidine in the trifluoromethanesulfonic anhydride-mediated activation of thioglycosides, and that their less crystalline nature enables them to be used at -78 °C as opposed to the -60 °C required to keep 1-benzenesulfinyl piperidine in solution. N,N-Dicyclohexyl benzenesulfinamide does not activate thioglycosides in combination with trifluoromethanesulfonic anhydride which is attributed to its greater steric bulk.
描述了一种用于大规模生产1-苯亚磺酰基哌啶和其他亚磺酰胺的改进方案。结果表明,在三氟甲磺酸酐介导的硫代糖苷活化反应中,1-苯亚磺酰基吡咯烷和N,N-二乙基苯亚磺酰胺与1-苯亚磺酰基哌啶具有类似的功能,并且它们较低的结晶性使其能够在-78°C下使用,而1-苯亚磺酰基哌啶需要在-60°C才能保持溶解状态。N,N-二环己基苯亚磺酰胺与三氟甲磺酸酐组合时不能活化硫代糖苷,这归因于其较大的空间位阻。