Patent · US Expired

Process for preparing 5-chloro-2-nitrophenol

US4310711A · kind A · utility

3Cited by

2References

5Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Helmut Muller · Bensberg, DE
Konrad Baessler · Frankfurt am Main, DE

Key dates

Filing date	Sep 2, 1980
Grant date	Jan 12, 1982
Priority date	—
Expiry date	Sep 2, 2000

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C201/12
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for preparing 5-chloro-2-nitrophenol from 2,4-dichloronitrobenzene and excess alkali metal hydroxide in the presence of aprotic polar solvents at 20.degree. to 150.degree. C.

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