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GB966264A - Production of alkyl pyridines - Google Patents

Production of alkyl pyridines

Info

Publication number
GB966264A
GB966264A GB3129861A GB3129861A GB966264A GB 966264 A GB966264 A GB 966264A GB 3129861 A GB3129861 A GB 3129861A GB 3129861 A GB3129861 A GB 3129861A GB 966264 A GB966264 A GB 966264A
Authority
GB
United Kingdom
Prior art keywords
pyridine
ethyl
mixture
ketone
alumina
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3129861A
Inventor
Kenneth Raymond Hargrave
Leslie Ernest Cooper
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Distillers Co Yeast Ltd
Distillers Co Ltd
Original Assignee
Distillers Co Yeast Ltd
Distillers Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Distillers Co Yeast Ltd, Distillers Co Ltd filed Critical Distillers Co Yeast Ltd
Priority to GB3129861A priority Critical patent/GB966264A/en
Publication of GB966264A publication Critical patent/GB966264A/en
Expired legal-status Critical Current

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  • Pyridine Compounds (AREA)

Abstract

Alkyl pyridines are prepared by heating together in the vapour phase, a mixture of formaldehyde, ammonia, an aliphatic ketone with two methylene groups adjacent to the carbonyl carbon atom, and a saturated aliphatic aldehyde with two or more carbon atoms in the molecule. The mixture may be heated at from 300-500 DEG C. and a condensation catalyst, e.g. silica, alumina or a mixture of silica and alumina, optionally with titania, zirconia, ceria or thoria, or compounds of zinc, cadmium, tin, lead, tungsten, nickel, cobalt, chromium, molybdenum, iron, palladium or silver. The aldehyde may be acetaldehyde, propionaldehyde and n-butyraldehyde, and the ketones, acetone, methylethyl ketone and diethyl ketone. Examples describe the production of pyridine bases comprising, 5-ethyl-2-methyl and 2-ethyl-5-methyl pyridine, 3,5-diethyl pyridine, 2,3,5-trimethyl pyridine, 2:5-, 3:5-, 2:6- and 2:4-butidine, a - and g -picoline, pyridine, 2-ethyl pyridine, and 2:4:6-collidine.
GB3129861A 1961-08-31 1961-08-31 Production of alkyl pyridines Expired GB966264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3129861A GB966264A (en) 1961-08-31 1961-08-31 Production of alkyl pyridines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3129861A GB966264A (en) 1961-08-31 1961-08-31 Production of alkyl pyridines

Publications (1)

Publication Number Publication Date
GB966264A true GB966264A (en) 1964-08-06

Family

ID=10321056

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3129861A Expired GB966264A (en) 1961-08-31 1961-08-31 Production of alkyl pyridines

Country Status (1)

Country Link
GB (1) GB966264A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0371615A1 (en) * 1988-10-28 1990-06-06 Nepera, Inc. High yield synthesis of pyridine and/or alkylpyridine(s) via condensation of ternary mixtures of aldehydes and/or ketones with ammonia
US5013843A (en) * 1990-06-07 1991-05-07 Nepera, Inc. High yield of pyridine and/or alkylpyridine(s) in condensation reaction of ternary aldehydes and/or ketones with ammonia
US6770643B2 (en) 1999-12-24 2004-08-03 Aventis Pharma Limited Azaindoles
US6897207B2 (en) 2001-06-21 2005-05-24 Aventis Pharmaceuticals Inc. Azaindoles

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0371615A1 (en) * 1988-10-28 1990-06-06 Nepera, Inc. High yield synthesis of pyridine and/or alkylpyridine(s) via condensation of ternary mixtures of aldehydes and/or ketones with ammonia
US5013843A (en) * 1990-06-07 1991-05-07 Nepera, Inc. High yield of pyridine and/or alkylpyridine(s) in condensation reaction of ternary aldehydes and/or ketones with ammonia
US6770643B2 (en) 1999-12-24 2004-08-03 Aventis Pharma Limited Azaindoles
US7227020B2 (en) 1999-12-24 2007-06-05 Aventis Pharma Limited Azaindoles
US6897207B2 (en) 2001-06-21 2005-05-24 Aventis Pharmaceuticals Inc. Azaindoles

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