Pyridazine fungicides
US8410026B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Jan 14, 2009 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Jan 14, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P35/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to novel pyridazine derivatives of formula (I) as active ingredients which have microbiocidal activity, in particular fungicidal activity: wherein R1 is methyl, ethyl or isopropyl; R2 is chloro, fluoro, hydroxy or C1-C2alkoxy; R3 is H, chloro, fluoro, methoxy or C1-C3alkyl; R4 is chloro, fluoro or bromo; and R5 is H, fluoro or methoxy; or an agrochemically usable salt form thereof; with the proviso that when R1 is methyl, R2 is chloro and R3 is H, then R4 or R5 is different from fluoro.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.