3-methylsulfonylmethyl-4-sulfomethyl-pyrrolidinium-betaines and

Details 3-methylsulfonylmethyl-4-sulfomethyl-pyrrolidinium-betaines and 3-methylsulfonylmethyl-4-sulfomethyl-pyrrolidinium-betaines and

1990-12-18

1992-03-24

Brust, Joseph Paul

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548568, C07D20708

Patent

active

050990438

ABSTRACT:
The invention relates to novel 3-methylsulfonylmethyl-4-sulfomethyl-pyrrolidinium betaines (methylsulfonyl-sulfobetaines) of the general formula I, which can be used as intermediates for further syntheses or, if they contain a long-chain alkyl radical, as polyfunctional surfactants or hydrotopes [sic]. Molar quantities of a diallylammonium salt are reacted together with chloroacetic acid and twice the molar quantity of sodium hydrogen sulfite in the presence of a catalytic quantity of a peroxodisulfate and the reaction solution obtained is, after addition of a catalytic quantity of iodide as well as calcium carbonate, converted to 3-methylsulfonylmethyl-4-sulfomethyl-pyrrolidinium betaines I by heating until the evolution of carbon dioxide has ceased. ##STR1##

REFERENCES:
patent: 4410709 (1983-10-01), Ohme et al.
patent: 4528383 (1985-07-01), Schmitt
patent: 4877885 (1989-10-01), Ballschuh et al.

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