Process for producing silicon-containing aromatic polyacids

Details Process for producing silicon-containing aromatic polyacids Process for producing silicon-containing aromatic polyacids

1989-12-15

1990-07-10

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

C07F 708, C07F 718

Patent

active

049408100

ABSTRACT:
An improved process is disclosed for preparation of silicon-containing aromatic polyacids by liquid phase oxidation of a mono- or polyalkyl substituted diaryldialkylsilane in the presence of oxygen and a catalyst comprising cobalt-manganese-bromine. Bis(p-tolyl)dimethylsilane is oxidized to bis(p-carboxyphenyl)dimethylsilane and bis(3,4-dimethylphenyl)-dimethylsilane is oxidized to bis(3,4-dicarboxylphenyl)dimethylsilane.

REFERENCES:
patent: 4176124 (1979-11-01), Darms et al.

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