Acesulfame-K is a widely used sweetener in food and beverage. It is prepared by using the substituted sodium phenoxide or substituted phenol as the starting substance to synthesize the following three intermediates: a substituted phenoxide sulfonylchloride(I), a substituted phenoxide sulfonylamide(II) and an acetoacetamide-N-sulfonyl-substituted phenoxide(III). Particularly, II was prepared by using the liquid or gaseous ammonia to react with I under the action of some catalysts in a reaction column. III was prepared by using II to react with diketene. Acesulfame-K was prepared by ring-closure in III with methanol solution of KOH or K
2
CO
3
.
阿斯巴甜K是食品和饮料中广泛使用的
甜味剂。它是通过使用取代的
苯酚钠或取代的
苯酚作为起始物质来合成以下三种中间体制备的:取代的
苯酚磺酰氯(I)、取代的
苯酚磺酰胺(II)和乙酰乙酰胺-N-磺酰基取代
苯酚(III)。特别是,II是通过在反应柱中使用液态或气态
氨在一些催化剂的作用下与I反应制备的。III是通过使用II与二酮反应制备的。
阿斯巴甜K是通过在III中使用
氢氧化钾或
碳酸钾的
甲醇溶液进行环合制备的。