| Identification | Back Directory | [Name]
pyroxasulfone | [CAS]
447399-55-5 | [Synonyms]
KIH-485
pyroxasulfone
pyroxasulfone-002
Pyroxasulfone Solution
3-[[5-(difluoromethoxy)-1-methyl-3-(trifluoromethyl)pyrazol-4-yl]methylsulfonyl]-5,5-dimethyl-4H-1,2-oxazole
Isoxazole, 3-[[[5-(difluoromethoxy)-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl]methyl]sulfonyl]-4,5-dihydro-5,5-dimethyl- | [EINECS(EC#)]
800-417-5 | [Molecular Formula]
C12H14F5N3O4S | [MDL Number]
MFCD17167020 | [MOL File]
447399-55-5.mol | [Molecular Weight]
391.31 |
| Hazard Information | Back Directory | [Uses]
Pyroxasulfone is an inhibitor of the biosynthesis of very-long-chain fatty acids. Pyroxasulfone is also used to control grass weed species in pre-emergence in major field crops. | [Production Methods]
Pyroxasulfone is commercially synthesised through a multi-step process that builds its unique isoxazoline-sulfonyl-pyrazole structure. The synthesis typically begins with the preparation of a substituted pyrazole intermediate, such as 5-(difluoromethoxy)-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-ylmethanol, which is then reacted with a sulfonylating agent and coupled to a dimethylisoxazoline moiety. This process involves selective fluorination, methylation, and sulfonylation steps under controlled conditions to ensure high purity and herbicidal efficacy. | [Mechanism of action]
Inhibition of very long chain fatty acids (VLCFA, inhibition of cell division) | [Pesticide Type]
Herbicide |
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