Back to results
US 2011/0301314 A1Published application
Continuous liquid-phase process for the synthesis of diaminopyridines from glutaronitriles
AssigneeE.I. du Pont de Nemours and Company
InventorsKeith W. Hutchenson, Aaron Minter
Life of this patent
Estimating the term…
Abstract
A liquid-phase, continuous process is provided for the manufacture of 2,6-diaminopyridine and related compounds from glutaronitriles, which are used industrially as compounds and as components in the synthesis of a variety of useful materials. The synthesis proceeds by means of a dehydrogenative aromatization process.
Claims19
A process for the synthesis of a compound as represented by the structure of the following Formula (I):
- comprising (a) providing a compound as represented by the structure of the following Formula (II):
- in the form of a liquid;
- (b) providing an ammonia component selected from the group consisting of:
- neat liquid ammonia, a mixture of liquid ammonia and a solvent, and ammonia gas;
- (c) heating a heterogeneous dehydrogenation catalyst;
- and (d) contacting the Formula (II) compound and the ammonia component in the presence of the catalyst to produce a Formula (I) product;
- wherein R1 and R2 are each independently selected from H and a hydrocarbyl group;
- and wherein the process is a continuous process.
5 more elements
Dependencies are inferred from the claim text.