US PATENT SUBCLASS 562 / 117
.~.~.~ Conversion of sulfur containing hetero ring compounds to sulfonic acids

Current as of: June, 1999
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562 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {41}
30  DF  .~ Sulfonic acids or salts thereof (i.e., compounds containing the sulfonate group, -S(=O)(=O)-O- wherein the single bonded oxygen is bonded directly to hydrogen, or to a group IA or IIA light metal or to substituted or unsubstituted ammonium) {15}
115  DF  .~.~ Processes (e.g., neutralization, stabilization, etc.) {6}
117.~.~.~ Conversion of sulfur containing hetero ring compounds to sulfonic acids

DEFINITION

Classification: 562/117

(under subclass 115) Processes wherein sulfonic acids are formed by conversion of sulfur containing hetero ring compounds.

(1) Note. An example of a process provided for herein is the conversion of an alkyl sultone to an alkene sulfonic acid by hydrolysis.