Patent · US Active

Gas-phase process for the synthesis of diaminopyridines from glutaronitriles

US7999057B2 · kind B2 · utility

0Cited by

22References

20Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Keith W. Hutchenson · McKeesport, US
Aaron Minter · Wilmington, US
Gregg Sunshine · Wilmington, US

Key dates

Filing date	Jul 8, 2008
Grant date	Aug 16, 2011
Priority date	—
Expiry date	Jul 8, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D213/73
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A gas-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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.