Patent · US Expired

Process for the preparation of carbazates

US5756824A · kind A · utility

3Cited by

5References

10Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Heinz Landscheidt · Duisburg, DE
Edwin Ritzer · Leverkusen, DE
Alexander Klausener · Neunburg vorm Wald, DE

Key dates

Filing date	Oct 21, 1996
Grant date	May 26, 1998
Priority date	—
Expiry date	Oct 21, 2016

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C281/02
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Alkyl carbazates of the formula R.sup.1 --O--CO--NH--NH.sub.2 (I) are prepared in an advantageous manner by reacting an alkyl carbazate of the formula R.sup.2 --O--CO--NH--NH.sub.2 (II) with alcohols of the formula R.sup.1 --OH (III) in the presence of a catalyst, where the symbols used in the formulae are as defined in the description.

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