Patent · US Expired

1-Aminomethylnaphthalene-6-sulphonic acid, its preparation and its use

US4795596A · kind A · utility

1Cited by

1References

1Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Erich Hammerschmidt · Bensberg, DE
Heinz U. Blank · Odenthal, DE

Key dates

Filing date	Oct 15, 1987
Grant date	Jan 3, 1989
Priority date	—
Expiry date	Oct 15, 2007

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C309/47
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to the new compound 1-aminomethylnaphthalene-6-sulphonic acid, a process for its preparation by amidoalkylation of naphthalene-2-sulphonic acid and hydrolysis of the amidoalkylation product, and its use as an intermediate product for the preparation of 6-hydroxynaphthalene-1-carboxylic acid.

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