Home

Primary Examiner: Moatz, Harry I.
Assistant Examiner:
Attorney: Ring; Sidney B., Glass; Hyman F.

Next ten patents ordered by date:

Process for piperidine intermediates for quinine, quinidine and analogs thereof
Quinuclidine derivatives
Substituted piperidines
Phosphinolines and phosphindolines
Substituted piperidine derivatives
2-Amino-5-spiro substituted oxazoline-4-one compounds
Benzopyrano and benzothiopyrano [2,3-6] pyridines
Substituted pyridinylalkoxy-, pyridinylalkylsulfonyl- and pyridinylalkylthio- phenylureas
Pyridyl phenyl-carbamate rodenticides
3-Pyridylmethyl aryl urea rodenticides

Translate:
En
De
Es
Fr
It
Pt
Ja
Ko
Zh

Title: Conversion of tetrahydropyrimidines to pyridines

Abstract: A process of converting 2,3,4,5-tetrahydropyrimidines containing at least 1 hydrogen in the 2-position and at least one methylene group in the 4-position to corresponding pyridines which comprises heating said tetrahydropyrimidines to a temperature sufficiently high to remove ammonia and hydrogen so as to form said pyridines.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Oude Alink, Bernardus A. (St. Louis, MO, US)

Application Number: 384440
Filing Date: 1973-08-01
Publication_date: 1976-01-06
Assignee: Petrolite Corporation (St. Louis, MO)
Primary Class(es): 546/252 546/283.4, 546/348
Other Classes:
US Patent Ref:
Other Refs: Other References: asinger et al., Angew. Chem., Vol. 70, p. 680-681, (1958).