abstract |
Ampho-ionic compounds of the formula ##STR1## wherein, for example, R is CH 2 ═C(CH 3 )--COOCH 2 --, R 2 is hydrogen and B.sup.⊕ is --N.sup.⊕ --(CH 3 ) 2 C 12 H 25 , are prepared by reacting an oxirane compound with sulfur dioxide and a tertiary amine. These ampho-ionic compounds are useful as, for example, surfactants. |