4,4'-Diphenyl ether-dialdehyde-bis-dimethylacetal and a process

Details 4,4'-Diphenyl ether-dialdehyde-bis-dimethylacetal and a process 4,4'-Diphenyl ether-dialdehyde-bis-dimethylacetal and a process

1982-08-27

1984-07-03

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

C25C 100

Patent

active

044578105

ABSTRACT:
Disclosed is the novel compound 4,4'-diphenylether-dialdehyde-bis-dimethylacetyl of the formula ##STR1## and a process for its preparation from di-p-tolyl ether ##STR2## by anodic oxidation of the latter in the presence of methanol and of a supporting electrolyte. The anode material used in this reaction is preferably platinum, lead dioxide, graphite or vitreous carbon, and the cathode material used is preferably steel, nickel, or graphite. The supporting electrolyte used is preferably NaOCH.sub.3, KOH, KPF.sub.6, CsF, NaBF.sub.4, LiBF.sub.4, tetraethylammonium p-toluenesulfonate, H.sub.2 SO.sub.4 or CH.sub.3 OSO.sub.3 H, individually or as a mixture.

REFERENCES:
patent: 4284825 (1981-08-01), Degner
patent: 4318783 (1982-03-01), Buhmann

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