Disclosed is a process for the preparation of a glucosamine acid addition salt from fructose and ammonia or an ammonia source such as an ammonium compound by contacting fructose and ammonia or an ammonia source in the presence of (i) a solvent comprising about 25 to 100 weight percent water and 75 to 0 weight percent of an inert, organic, water-miscible solvent at a
W
W
pH or
S
W
pH of about 1 to 6; or (ii) a solvent comprising about 75 to 100 weight percent of an inert, organic, water-miscible solvent and 0 to 25 weight percent water at a
W
W
pH or
S
W
pH of about 1 to 10. A mannosamine acid addition salt also is produced as a co-product of the process.
揭示了一种从
果糖和
氨或
氨源(如
铵化合物)制备
葡萄糖胺酸盐的过程,方法是在存在(i)约25至100重量百分比
水和75至0重量百分比惰性有机亲
水溶剂的溶剂中,以约1至6的aWWpH或SWpH条件下,将
果糖和
氨或
氨源接触;或者(ii)在存在约75至100重量百分比惰性有机亲
水溶剂和0至25重量百分比
水的溶剂中,以约1至10的aWWpH或SWpH条件下进行。该过程还会产生一种甘露胺酸盐作为副产品。