Potassium Carbonate → Benzenamine, 4-bromo-2-(4,5-dihydro-3-isoxazolyl)-3-methyl-

HRID 434216

反応式

HRID 434216 の反応式
[O:1]1[CH2:5][CH2:4][C:3]([C:6]2[C:12]([CH3:13])=[CH:11][CH:10]=[CH:9][C:7]=2[NH2:8])=[N:2]1.C(=O)([O-])[O-].[K+].[K+].[Br-:20].[Br-].[Br-].C([N+](CCCC)(CCCC)CCCC)CCC.C([N+](CCCC)(CCCC)CCCC)CCC.C([N+](CCCC)(CCCC)CCCC)CCC>C(#N)C>[Br:20][C:11]1[CH:10]=[CH:9][C:7]([NH2:8])=[C:6]([C:3]2[CH2:4][CH2:5][O:1][N:2]=2)[C:12]=1[CH3:13]

参加物

5

反応物 3

HCID 11430Potassium CarbonateHCID 97940062-(4,5-Dihydroisoxazol-3-yl)-3-methylanilineHCID 23500184Tetra-n-butylammonium tribromide

生成物 1

HCID 9813747Benzenamine, 4-bromo-2-(4,5-dihydro-3-isoxazolyl)-3-methyl-

試薬・触媒・溶媒 1

HCID 6342Acetonitrile溶媒

反応条件

温度
30 °C

実験手順

30 g (170 mmol) of 2-(4,5-dihydroisoxazol-3-yl)-3-methylaniline are dissolved in 400 ml of acetonitrile, and 94 g (0.68 mol) of potassium carbonate are added. 84 g (174 mmol) of tetrabutylammonium tribromide are subsequently added a little at a time with vigorous stirring at temperatures<30° C. For work-up, the solid is filtered off with suction and the filtrate is diluted with methylene chloride and extracted with water. The solvent is stripped off and the residue is again taken up in methyl tert-butyl ether and washed twice with water. The organic phase is dried and concentrated.

後処理

  1. filtrationFor work-up, the solid is filtered off with suction
  2. additionthe filtrate is diluted with methylene chloride
  3. extractionextracted with water
  4. washwashed twice with water
  5. customThe organic phase is dried
  6. concentrationconcentrated

出典と根拠

ORDレコード
ord-27427512053c4a09b794d01d097195cb
出典データセット
uspto-grants-2003_12
特許番号
US06670482B2

関連ノート

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