Modifications in the nitric acid oxidation of d-mannose: X-ray crystal structure of N,N′-dimethyl d-mannaramide
作者:Chrissie A. Carpenter、Kenneth I. Hardcastle、Donald E. Kiely
DOI:10.1016/j.carres.2013.05.004
日期:2013.7
Nitric acid oxidation of D-mannose was carried out under an oxygen atmosphere using a computer controlled reactor. The process represents a catalytic oxidation of D-mannose with oxygen as the terminal oxidant. The crude oxidation product was esterified with methanolic HCl and the esterified product directly converted to crystalline N,N'-dimethyl-D-mannaramide with methylamine. Treatment of the diamide
使用计算机控制的反应器在氧气气氛下进行D-甘露糖的硝酸氧化。该方法代表用氧作为末端氧化剂对D-甘露糖的催化氧化。用甲醇的HCl酯化粗氧化产物,然后用甲胺将酯化产物直接转化为结晶的N,N′-二甲基-D-马那酰胺。在氢氧化钠水溶液中处理二酰胺,得到固体D-甘露酸钠。N,N′-二甲基-D-马那酰胺的X射线晶体结构被确定为立体规则聚(亚烷基-D-马那酰胺)的重复D-马那酰胺单元的模型。制备了D-甘露酸钠二酯作为酯化的D-月桂酸的前体,用作反应性二酸单体以制备聚-D-月桂酰胺。