Process for the preparation of thiophene-2-5-dicarboxylic acid a

Details Process for the preparation of thiophene-2-5-dicarboxylic acid a Process for the preparation of thiophene-2-5-dicarboxylic acid a

1996-11-18

1997-11-18

Dees, Jose G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D33340

Patent

active

056889690

ABSTRACT:
The invention relates to a process for the preparation of thiophene-2,5-dicarboxylic acid by reacting thionyl chloride and adipic acid, with pyridine as catalyst, which process comprises

REFERENCES:
patent: 2744917 (1956-05-01), Jones et al.
patent: 3062834 (1962-11-01), Fiesselmann
patent: 3127416 (1964-03-01), Liechti et al.
patent: 5093504 (1992-03-01), Goda et al.
patent: 5310940 (1994-05-01), Goda et al.
Derwent Abs. No. 78-25397A/14 of DD-12944-A, Raunen et al, "Pure thiophene-2-5-dicarboxylic and . . . ", (1978).
Chem. Abst. 57:15075 of DE 1,210,888, (1962).
Chem. Abst. 89:753479 of DD 129,448, (1978).
Chem. Abst. 68:871432 of CH 426,870, (1968).

Affiliated with

Also associated with

Rating

Process for the preparation of thiophene-2-5-dicarboxylic acid a 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 thiophene-2-5-dicarboxylic acid a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of thiophene-2-5-dicarboxylic acid a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1567025