Diphenyl oxalate-phenol adduct, process for producing the adduct

Details Diphenyl oxalate-phenol adduct, process for producing the adduct Diphenyl oxalate-phenol adduct, process for producing the adduct

1996-11-26

1998-01-06

Ambrose, Michael G.

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

Organic compounds

Carboxylic acid esters

C07C 6936

Patent

active

057056773

ABSTRACT:
A novel crystalline adduct of diphenyl oxalate and phenol in a molar ratio of 1:2 and having a high purity is produced by melting a mixture containing diphenyl oxalate and phenol at a temperature of 100.degree. C. or more; cooling the melt to a temperature of less than 100.degree. C. to allow a resultant adduct of diphenyl oxalate and phenol in a molar ratio of 1:2 to crystallize and deposit from the melt; and collecting the crystalline adduct. Diphenyl oxalate with a high purity is produced by melting the crystalline adduct to dissociate it into diphenyl oxalate and phenol, and evaporating away the dissociated phenol from the melt to collect the dissociated diphenyl oxalate.

REFERENCES:
patent: 5239106 (1993-08-01), Shafer
Fritz Feigl und Riva Kobiliansky: Uber Vorverbindungen bei der Veresterung von Oxalsaure mit Phenolen, 1925, pp. 1483-1488, Berichte Der Deutschen Chemisciien Gesellschaft.

Affiliated with

Also associated with

Rating

Diphenyl oxalate-phenol adduct, process for producing the adduct does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Diphenyl oxalate-phenol adduct, process for producing the adduct, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diphenyl oxalate-phenol adduct, process for producing the adduct will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2330264