3-SULFINATOMETHYL AND 3-SULFONATOMETHYL-4-SULFOMETHYL-PYRROLIDINIUM BETAIN AND THEIR SALTS, AND PROCESS FOR THEIR PREPARATION

摘要

Pyrrolidinium sulphobetaines of formula (I) are new: x=2 or 3; R1=H, 1-22C alkyl (opt. interrupted by NHCO or CONH), hydroxyalkyl, oxyalkylene (sic), benzyl, (CH2)3SO3-, CH2CH(SO2-) CH2SO3- or CH2CH(SO3-)CH2SO3-; R2=H, 1-22C alkyl (opt. interrupted by NHCO or CONH), hydroxyalkyl or oxyalkylene (sic); or R1+R2 forms a ring; R3 and R4 =H or Me; M+ = cations, pref. H, Na, K or NH4; n=1-3.