Invention Grant
- Patent Title: Method for preparing optionally substituted benzofuranones
- Patent Title (中): 制备任选取代的苯并呋喃酮的方法
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Application No.: US09509911Application Date: 2000-04-04
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Publication No.: US06194590B1Publication Date: 2001-02-27
- Inventor: Bernd Gallenkamp , Peter Gerdes , Herbert Gayer , Lothar Rohe , Lubbertus Mulder
- Applicant: Bernd Gallenkamp , Peter Gerdes , Herbert Gayer , Lothar Rohe , Lubbertus Mulder
- Priority: DE19744705 19971010
- Main IPC: C07D30783
- IPC: C07D30783
Abstract:
The invention relates to an improved method for preparing optionally substituted benzofuran-3-ones which can be used as initial products for preparing 3-(1-hydroxyphenyl-1-alkoximinomethyl) dioxazines. These later are known starting materials for preparing compounds with fungicidal properties.
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