两性表面活性剂（八）——两性表面活性剂的合成

较为详细地介绍了烷基甜菜碱、烷基酰胺基甜菜碱、磺基甜菜碱及其他若干种甜菜碱型表面活性剂的合成，并比较了其中一些合成路线，特别是磺基甜菜碱的几种合成方法。对咪唑啉中间体、两性咪唑啉合成中的主要副产物及两性咪唑啉的开环结构进行了报道。对氨基酸型两性表面活性剂的原料胺、长链烷基氨基酸及烷基低聚氨基酸的合成方法也进行了讨论。

Amphoteric Surfactants(Ⅷ)Synthesis of Amphoteric Surfactants

Syntheses of some amphoteric surfactants which tructures are betaie-llke,Imidazoline-like of amino acid-like respectively were introduced.The syntheses of alkylbetaine,acylbetaine,sulfobetaine and the other betaine-like surfactants were discussed in detail because betaine-like surfactant is the main kind of amphoteric surfactants.Some alternative synthetic routines of betaine-like surfactants,especially of sulfobetaine were compared with one another.The structure of inidazoline intermediate,the linear structure of amphoteric inidazoline and companying chief biproducts were reported.The prapreation methods of amino acid-like amphoteric surfactants,such as allkyl substituted amino acid and alkyl polyminoacid and their precursor amines were discussed.