Process and catalyst for the preparation of acetylpyridines

Details Process and catalyst for the preparation of acetylpyridines Process and catalyst for the preparation of acetylpyridines

2006-06-27

2006-06-27

Saeed, Kamal A. (Department: 1626)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C546S315000

Reexamination Certificate

active

07067673

ABSTRACT:
A process for the production of acetylopyridines of the formula (1):by reacting a pyridinecarboxylic ester of the formula (II):wherein R1is C1-6-alkyl, with acetic acid in the gas phase in the presence of a catalyst. The active material of the catalyst is titanium dioxide and at least one alkali or alkaline earth metal oxide, and it is supported on an alumina-silica support having an apparent porosity of at least 50 percent. The process has the advantage of producing only small amounts of by-products (e.g, pyidine).

REFERENCES:
patent: 3979400 (1976-09-01), Rieger et al.
patent: 4950763 (1990-08-01), Schommer et al.
patent: 0352674 (1990-01-01), None
patent: 1249079 (1971-10-01), None
patent: 98/50374 (1998-11-01), None
International Search Report for applicants corresponding International patent application.
Girardon, Marc, et al., Journal of Organic Chemistry, vol. 63, No. 26, (1998), pp. 10063-10068.
Houben-Weyl, vol. VII/2a, pp. 632-633.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3688591