反応式
[CH3:1][N:2]([CH3:11])[S:3]([N:6]1[CH:10]=[CH:9][CH:8]=[N:7]1)(=[O:5])=[O:4].[Cl:12]C(Cl)(Cl)C(Cl)(Cl)Cl.C([Li])CCC>>[Cl:12][C:8]1[CH:9]=[CH:10][N:6]([S:3]([N:2]([CH3:11])[CH3:1])(=[O:4])=[O:5])[N:7]=1参加物
実験手順
US 20130288893(A1) describes, inter alia, certain (3-halo-1-(pyridin-3-yl)-1H-pyrazol-4-yl)amides and carbamates and their use as pesticides. The route to prepare such compounds involved the preparation of 3-(3-chloro-1H-pyrazol-1-yl)pyridine by the direct coupling of 3-bromopyridine with 3-chloropyrazole. The 3-chloropyrazole was prepared by a) treating 1H-pyrazole with 2 dimethylsulfamoyl chloride and sodium hydride to provide N,N-dimethyl-1H-pyrazole-1-sulfonamide, b) treating the N,N-dimethyl-1H-pyrazole-1-sulfonamide with perchloroethane and n-butyl lithium to provide 3-chloro-N,N-dimethyl-1H-pyrazole-1-sulfonamide, and c) removing the N,N-dimethylsulfonamide from 3-chloro-N,N-dimethyl-1H-pyrazole-1-sulfonamide with trifluoroacetic acid to give the 3-chloropyrazole.
出典と根拠
- ORDレコード
- ord-7bd55377661046e8bc48de53f4f03188
- 出典データセット
- uspto-grants-2015_08
- 特許番号
- US09115115B1
関連ノート
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