Process to produce 4-(2-sulfoethyl) cyclohexane, 1,2-diol...

Organic compounds -- part of the class 532-570 series – Organic compounds – Sulfonic acids or salts thereof

Reexamination Certificate

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C562S109000, C562S115000, C562S030000

Reexamination Certificate

active

06906220

ABSTRACT:
Disclosed herein is a process for preparing 4-(2-sulfoethylcyclohexane)-1,2-diol sodium salt, at ambient condition and in the presence of a buffer and an initiator, from vinylcyclohexane-1,2-diol. Also disclosed is a process for preparing 3-(2-sulfoethyl) hexanedioic acid, sodium salt by oxidizing 4-(2-sulfoethylcyclohexane)-1,2 diol sodium salt with hydrogen peroxide in the presence of tungstic acid.

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CA:127:4966 abs of Toxicological and Environmental Chemistry by Mash 57(1-4) pp 153-162 1996.
CA:122:239210 abs of Neftekhimiya by Alimardanov et al 34(4) pp 344-50 1994.
Hans-Fischer-Gesellschaft, 29 Bis 30, Sep. 1960 in Munchen, pp. 69-71 (Angew. Chem 73 Jahrg. 1961).
Synthesis of Highly Water-Soluble Cyclodextrin Sulfonates by Addition of Hydrogen Sulfite to Cyclodextrin Allyl Ethers. Gerhard Wenz and Thomas Hofler. Carbohydrate Research 322 (1999) 153-165.
The Peroxide Effect in the Addition of Reagents to Unsaturated Compounds. IVIII. The Addition and Substitution of Bisulfite. M. S. Kharasch, Ernest M. May, and Frank R. Mayo. J. Org. Chem. v. 3, 1938-39, pp. 175-192.

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