Patent · US Expired

Process for preparing 3-(1-hydroxyphenyl-1-alkoximinomethyl) dioxazines

US6093837A · kind A · utility

3Cited by

1References

4Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Bernd Gallenkamp · Wuppertal, DE
Lothar Rohe
Herbert Gayer · Monheim, DE
Peter Gerdes · Aachen, DE

Key dates

Filing date	Nov 5, 1998
Grant date	Jul 25, 2000
Priority date	—
Expiry date	Nov 5, 2018

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D307/82
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a novel process for preparing 3-(1-hydroxyphenyl-1-alkoximinomethyl)dioxazines which are known as intermediates for preparing compounds having fungicidal properties (WO 95-04728). Furthermore, the invention relates to novel 3-(1-hydroxyphenyl-1-alkoximinomethyl)dioxazines, to novel intermediates for their preparation and to a plurality of processes for preparing the novel intermediates.

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