Process for preparing silylated aromatic acids

Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

556439, 556430, C07F 708

Patent

active

050829599

ABSTRACT:
An improved process is disclosed for preparation of silicon-containing aromatic polyacids by liquid phase oxidation of a silyl compound in the presence of oxygen and a catalyst comprising cobalt-manganese-bromine. 2-Trimethylsilyl-p-xylene is oxidized to 2-trimethylsilyl-terephthalic acid; 5-trimethylsilyl-m-xylene is oxidized to 5-trimethylsilyl-isophthalic acid, 2,5-bis (trimethylsilyl)-p-xylene is oxidized to 2,5-bis (trimethylsilyl)-terephthalic acid; 5-trimethylsilyl-pseudocumene is oxidized to 1,2,4-tricarboxy-5-trimethylsilyl benzene; and 1,3-bis-(p-tolyl)-tetramethyl-disiloxane is oxidized to 1,3-bis(p-carboxyphenyl)-tetramethyl-disiloxane.

REFERENCES:
patent: 4940810 (1990-07-01), Yokelson et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Process for preparing silylated aromatic acids does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing silylated aromatic acids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing silylated aromatic acids will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-116652

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.