Patent · US Expired

Process for the preparation of nitrosobenzene

US4314089A · kind A · utility

0Cited by

4References

7Claims

0Family size

Assignee

Akzona Incorporated · US

Inventors

Hans Zengel · Kleinwallstadt, DE
Manfred Bergfeld · Zell am Harmersbach, DE
Werner Klostermeier · Dippoldiswalde, DE

Key dates

Filing date	Mar 13, 1980
Grant date	Feb 2, 1982
Priority date	—
Expiry date	Mar 13, 2000

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C201/00
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

An improved process for the preparation of nitrosobenzene by catalytically reducing nitrobenzene with the use of a reducing agent selected from the group consisting of aliphatic compounds containing from about 1 to about 20 carbon atoms, cycloaliphatic compounds containing from about 4 to about 12 carbon atoms, benzene, naphthalene, and ethylenically unsaturated compounds containing from about 2 to about 10 carbon atoms is disclosed. The improvement comprises performing the reduction in the presence of from about 0.05 to about 4.0 moles of water per mole of nitrobenzene.

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