Pyridine base synthesis

Details Pyridine base synthesis Pyridine base synthesis

1996-06-21

1998-07-14

Rotman, Alan L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546250, C07D21309, C07D21310

Patent

active

057806357

ABSTRACT:
A base synthesis process and catalyst for the preparation of pyridine or its alkylpyridine derivatives involving the catalytic reaction of one or more aldehydes and/or ketones containing from one to about five carbon atoms, with at least one reactant having more than one carbon atom, with ammonia in the gas phase. The catalyst comprises an effective amount of a large-pore zeolite having been prepared with a silica to alumina ratio of at least 15, and at least a first dimension having first channels formed by twelve-membered rings, and a second dimension having second channels formed by ten- or twelve-membered rings which intersect the first channels. The preferred zeolite is a zeolite having the structure of zeolite beta.

REFERENCES:
patent: 3020280 (1962-02-01), Cislak et al.
patent: 3020281 (1962-02-01), Cislak et al.
patent: 3020282 (1962-02-01), Cislak et al.
patent: 3308069 (1967-03-01), Wadlinger et al.
patent: 4016218 (1977-04-01), Haag et al.
patent: 4220783 (1980-09-01), Chang et al.
patent: 4388461 (1983-06-01), Chang et al.
patent: 4518485 (1985-05-01), LePierre et al.
patent: 4628097 (1986-12-01), Le Blanc et al.
patent: 4675410 (1987-06-01), Feitler et al.
patent: 4714537 (1987-12-01), Jorgensen et al.
patent: 4810794 (1989-03-01), Shimizu et al.
patent: 4861894 (1989-08-01), Bowes et al.
patent: 4866179 (1989-09-01), Cheng et al.
patent: 4910006 (1990-03-01), Zones et al.
patent: 5013843 (1991-05-01), Feitler et al.
patent: 5164169 (1992-11-01), Rubin
patent: 5218122 (1993-06-01), Goe et al.
patent: 5304698 (1994-04-01), Husain
patent: 5395940 (1995-03-01), Angevine et al.
Frillette, V.J., Haag, W.O., Lago, R.M., Catalysis By Crystalline Aluminosilicates: Characterization of Intermediate Pore-Size Zeolites by the "Constraint Index", J. of Catalysis, vol. 67, pp. 218-222 (1981).
Haggin, J., "New Zeolite Structures Promising For Catalysis", C & En, p. 8, Dec. 6, 1993.
Higgins, J.B., LaPierre, R.B., Schlenker, J.L., Rohrman, A.C., Wood, J.D., Kerr, G.T. Rohrbaugh, W.J., "The Framework Topology Of Zeolite Beta", Zeolites, vol. 8, pp. 446-452, Nov. 1988.
Lobo, R.F., Pan, M., Chan, I., Li, H-X., Medrud, R.C., Zones, S.I., Crozier, P.A., Davis, M.E., "SSZ-26 And SSZ-33: Two Molecular Sieves With Intersecting 10-And 12-Ring Pores", Science, vol. 262, pp. 1543-1546, Dec. 3, 1993.
Weitkamp, J., Ernst, S., Kumar, R., "The Spaciousness Index: A Novel Test Reaction For Characterizing The Effective Pore Width Of Bifunctional Zeolite Catalysts", Applied Catalysis, vol. 27, pp. 207-210 (1986).
Weitkamp, J., Chen, C.Y., Ernst, S., "Characterization Of Zeolites By The Spaciousness Index", Successful Design of Catalysts, pp. 343-350 (1988).

Affiliated with

Also associated with

Rating

Pyridine base synthesis does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pyridine base synthesis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pyridine base synthesis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1883089