Patent · US Expired

Process for the preparation of the 5- and 6-nitro derivatives of 1,2,3,4-tetrahydro-anthraquinone from 1,2,3,4,4a,9a-hexahydro-9,10-anthracene-dione

US4335050A · kind A · utility

1Cited by

2References

7Claims

0Family size

Assignee

P C U K Produits Chimiques Ugine Kuhlmann · FR

Inventors

Serge Y. Delavarenne · Francheville, FR
Pierre Tellier · Oullins, FR

Key dates

Filing date	Sep 28, 1979
Grant date	Jun 15, 1982
Priority date	—
Expiry date	Sep 28, 1999

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2603/24
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Process for the preparation of the mononitro derivatives substituted in positions 5 or 6 of 1,2,3,4-tetrahydro-anthraquinone, which comprises nitrating 1,2,3,4,4a,9a-hexahydro-9,10-anthracene-dione by means of nitric acid or a mixture of nitric acid and sulfuric acid.

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