Amphoteric branched sulfatobetaines of the formula
wherein Rf is perfluoroalkyl or perfluoroxyperfluoroalkyl, R1 is a direct bond or a divalent connecting group, R2, R3 and R4 are independently hydrogen or lower alkyl, R5, R6 and R7 are independently lower alkyl, where R6 may additionally represent aralkyl, and R6 and R7 taken together with the nitrogen to which they are attached may also together represent piperidino or morpholino and R5, R6 and R7 taken together may also represent pyridyl, acridyl or quinolyl and salts thereof. The new compounds are suitable surface active agents.
式中的两性支链磺基
甜菜碱
其中 Rf 为
全氟烷基或
全氟氧基
全氟烷基,R1 为直接键或二价连接基团,R2、R3 和 R4 独立地为氢或低级烷基,R5、R6 和 R7 独立地为低级烷基,其中 R6 还可以代表芳烷基,R6 和 R7 与它们所连接的氮一起还可以一起代表
哌啶基或吗啉基,R5、R6 和 R7 一起还可以代表
吡啶基、
吖啶基或醌基及其盐类。这些新化合物是合适的表面活性剂。