Process for preparing aromatic hydroxycarboxylic acids

Details Process for preparing aromatic hydroxycarboxylic acids Process for preparing aromatic hydroxycarboxylic acids

C - Chemistry, Metallurgy

07

C

C07C 65/01 (2006.01) C07C 51/15 (2006.01)

Patent

CA 2124055

Abstract Process for preparing aromatic hydroxycarboxylic acids A process for preparing aromatic hydroxycarboxylic acids or di-salts thereof by reaction of alkali metal phenol- ates or naphtholates with carbon dioxide, in the presence or absence of a further alkali metal salt, which com- prises introducing the solid phenolate or naphtholate starting materials and, if desired, the alkali metal salt into the reaction mixture batchwise or continuously, separately or together, in the form of a dispersion in an inert organic liquid. The process of the invention makes possible the prepara- tion of aromatic hydroxycarboxylic acids in good yields and with high chemical selectivity. Additional measures for increasing the selectivity, as are described for the Kolbe-Schmitt reaction in, for example, EP-A 0 053 824, EP-A 0 081 753 and EP-A 0 254 596, can be omitted.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1929106