Patent · US Expired

Preparation of pyridines or pyrroles from .alpha.,.omega.-dinitriles

US4521602A · kind A · utility

4Cited by

3References

5Claims

0Family size

Assignee

BASF SE

Inventors

Walter Rebafka · Eppelheim, DE
Gerd Heilen · Speyer, DE
Klaus Halbritter · Heidelberg, DE
Wolfgang Franzischka · Bischofswerda, DE

Key dates

Filing date	Jun 9, 1983
Grant date	Jun 4, 1985
Priority date	—
Expiry date	Jun 9, 2003

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D213/08
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A pyridine or a pyrrole is obtained in a one-stage process directly from an .alpha.,.omega.-dinitrile of appropriate carbon skeleton when the dinitrile is reacted in the gas phase with hydrogen, over a hydrogenation catalyst.

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