Process for preparing 4,4'-isopropylidenedithio-bis-(2,6-di-tert

Details Process for preparing 4,4'-isopropylidenedithio-bis-(2,6-di-tert Process for preparing 4,4'-isopropylidenedithio-bis-(2,6-di-tert

1988-06-22

1989-08-29

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

204 73R, 204 78, C25B 300

Patent

active

048614432

ABSTRACT:
This invention relates to an improvement in a process for making 4,4'-isopropylidenedithio-bis-(2,6-di-tertiarybutylphenol), which is effected by carrying out an electrocatalytic reduction of bis(3,5-di-tertiarybutyl-4-hydroxyphenol)polysulfide at a lead cathode in an acidic electrolyte medium.

REFERENCES:
patent: 3576883 (1971-04-01), Neuworth
patent: 3952064 (1976-04-01), Whalley
patent: 4072584 (1978-02-01), Cipris et al.
patent: 4705620 (1987-11-01), Bricker et al.
patent: 4719237 (1988-01-01), McCaughan
patent: 4734527 (1988-03-01), Krauss

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