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US 4,299,780 AGranted
Process for preparing salts of carbamoyl sulfonic acid derivatives
AssigneeUnion Carbide Corporation
InventorYoung-Jin Lee
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Abstract
This invention relates to a process of preparing a compound of the formula: R-NHCOSO.sub.3.sup.- M.sup.+ wherein R is a C.sub.1 --C.sub.8 alkyl or phenyl group and M is an alkali metal or ammonium ion. Also encompassed by the present invention is a novel class of compounds, namely salts of N-methylcarbamoylsulfonic acids.
Claims6
A process for preparing a compound of the formula:
- R-NHCOSO.sub.3.sup.- M.sup.+
- which comprises reacting a compound of the formula:
- M.sup.+ HSO.sub.3.sup.-
- with a compound of the formula
- R-NHCOX
- wherein
- R is a C.sub.1 to C.sub.8 alkyl or phenyl group,
- M.sup.30 is an alkali metal or ammonium ion, and
- X is halogen,
- said reaction being effected at a temperature between about 0.degree. C. and about 50.degree. C. and at a pressure of autogenous or atmospheric pressure.
7 more elements
A compound of the formula :
- CH.sub.3 -NHCOSO.sub.3.sup.- M.sup.+
- wherein M is alkali metal or ammonium.
Dependencies are inferred from the claim text.