Patent · US Expired

Catalytic process for the direct carbonylation of organic nitro compounds

US4491670A · kind A · utility

9Cited by

1References

8Claims

0Family size

Assignee

Indian Explosives Limited · IN

Inventors

Sumit Bhaduri · Spring, US
Krishna Sharma · Thane, IN
Gopalkrishnan S. Kalpathi · Thane, IN

Key dates

Filing date	Jan 27, 1983
Grant date	Jan 1, 1985
Priority date	—
Expiry date	Jan 27, 2003

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C263/14
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Isocyanates, or derivatives thereof, are produced from nitrobenzene or 2,4-dinitrotoluene by reaction with carbon monoxide in the presence of an iron, ruthenium, rhodium, or platinum carbonyl as catalyst.

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