Process for the preparation of dimethyl succinylosuccinate, the

Details Process for the preparation of dimethyl succinylosuccinate, the Process for the preparation of dimethyl succinylosuccinate, the

1982-01-21

1984-03-06

Helfin, Bernard

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

Organic compounds

Carboxylic acid esters

560 21, 560 47, 562435, 562456, 562457, C07C10138, C07C10168, C07C10376

Patent

active

044355890

ABSTRACT:
Process for the preparation of dimethyl succinylosuccinate, or the disodium salt thereof, by condensation of dimethyl succinate in a 35-45 percent by weight solution of sodium methylate in methanol, and a process for the preparation of dianilinodihydroterephthalic acids, the dimethyl esters and salts thereof, and of dianilinoterephthalic acids, and the dimethyl esters and salts thereof, starting from the disodium salt of dimethyl succinylosuccinate prepared according to the new process, without intermediate isolation.

REFERENCES:
patent: 2782220 (1957-02-01), Ingram
patent: 2803644 (1957-08-01), Lemel
patent: 2821541 (1958-01-01), Struve
patent: 3024268 (1962-03-01), Struve
patent: 3045040 (1962-07-01), Deuschel
patent: 4124768 (1978-11-01), Kirsch et al.

Affiliated with

Also associated with

Rating

Process for the preparation of dimethyl succinylosuccinate, the 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 the preparation of dimethyl succinylosuccinate, the , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of dimethyl succinylosuccinate, the will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-742813