Abstract: Sucralose is a wholely－new concept of food additive.Due to its high sweetness,excellent sweet characteristics and high safety,sucralose is regarded as the highest accomplishment of intense sweetener.Up to now,it can only be produced by Tate ＆Lyle Company in Britain,Whose manufacture technologies,especially key steps and parameters,are still kept highly secret.This article discussed the sweetness－enhancing mechanism of sucrose halogenated derivatives and their synthesis mechanism.

Key words: Sucrose halogenated derivatives Sucralose Intense sweetener Hologroup protected method synthesis