Patent · US Expired

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

US6335454B1 · kind B1 · utility

2Cited by

1References

2Claims

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	Mar 17, 2000
Grant date	Jan 1, 2002
Priority date	—
Expiry date	Mar 17, 2020

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.