CN103396440A | 農藥合法資訊網
Theinventionbelongstothefieldofchemicalsynthesis,andparticularlyrelatestoanewpreparationmethodofaglufosinate-ammoniumweedkiller.
A kind of preparation method of careless ammonium phosphineTechnical field
The invention belongs to the field of chemical synthesis, particularly a kind of preparation method of weedicide grass ammonium phosphine.
Background technology grass ammonium phosphine (Glufosinafe) is a kind of efficient, the low toxicity of being developed at first by Hoechest company, nonselective herbicide, and commodity are called Basta.Its molecular formula is: C 5H 12NO 4P; Molecular weight: 181.1; Structural formula is:
The chemical name of grass ammonium phosphine: 4-[hydroxyl (methyl) phosphono]-the DL-high lactamine; No. CAS: [151276-47-22].Grass ammonium phosphine is soluble in water, and solvability is low in organic solvent, and is stable to light.Facile hydrolysis in the water of pH=5-9; The fusing point 229-231 ℃ of DL type grass ammonium phosphine, L-type is 214-216 ℃.Grass ammon...
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