Process for the preparation of dodecanedioic acid

Details Process for the preparation of dodecanedioic acid Process for the preparation of dodecanedioic acid

1990-01-19

1991-06-25

Tung, T.

Chemistry: electrical and wave energy

Processes and products

204 59R, 204 78, 204 92, 204 93, 204 96, 204129, 2603986, 562544, C07C 500, C25B 302

Patent

active

050264613

ABSTRACT:
A process for the production of dodecanedioic acid by oxidation of cyclododecene using a two phase system in which ruthenium tetroxide serves as the oxidizing agent in the organic phase, and ruthenium tetroxide is regenerated in the second phase, an aqueous phase containing cerium ions in the plus 4 state. The cerium plus 4 ions may be regenerated by electrolytic oxidation in a separate step.

REFERENCES:
patent: 3459644 (1969-08-01), MacLean et al.
patent: 3479403 (1969-11-01), MacLean
patent: 3637832 (1972-01-01), White et al.
patent: 3692810 (1972-09-01), Washecheck
patent: 4532079 (1985-07-01), Venturello et al.
patent: 4639298 (1987-01-01), Kreh et al.
patent: 4794172 (1988-12-01), Kreh
Torii et al. "Indirect Electrooxidation of Alcohols and Aldehydes by Using a Double Mediatory System Consisting of RuO.sub.4 /RuO.sub.2 and Cl.sup.+ /Cl.sup.- Redoxes in an Aqueous Organic Two-Phase System", J. Organic Chem.; 1986, vol. 51, pp. 155-161.

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