Triethylamine → HCID 178521337、化合物

HRID 471382ノート

反応式

HRID 471382 の反応式
[Cl:1][C:2]1[CH:10]=[C:9]([C:11]2[CH2:15][C:14]([C:20]3[CH:25]=[C:24]([Cl:26])[CH:23]=[C:22]([Cl:27])[CH:21]=3)([C:16]([F:19])([F:18])[F:17])[O:13][N:12]=2)[CH:8]=[CH:7][C:3]=1[CH:4]=[N:5][OH:6].Cl[N:29]1C(=O)CC[C:30]1=O.[Cl-].[F:37][C:38]([F:46])([F:45])[CH2:39][NH:40][C:41]([NH2+]C)=[O:42].C(N(CC)CC)C>CN(C=O)C.C1COCC1>[Cl:1][C:2]1[CH:10]=[C:9]([C:11]2[CH2:15][C:14]([C:20]3[CH:21]=[C:22]([Cl:27])[CH:23]=[C:24]([Cl:26])[CH:25]=3)([C:16]([F:19])([F:18])[F:17])[O:13][N:12]=2)[CH:8]=[CH:7][C:3]=1[C:4]([NH:29][CH2:30][C:41]([NH:40][CH2:39][C:38]([F:37])([F:45])[F:46])=[O:42])=[N:5][OH:6]

参加物

7

反応物 4

HCID 8471TriethylamineHCID 31398ChlorosuccinimideHCID 87401929(2,2,2-Trifluoro-ethylcarbamoyl)-methyl-ammoniumchlorideHCID 1363862682-Chloro-4-[5-(3,5-dichloro-phenyl)-5-trifluoromethyl-4,5-dihydro-isoxazol-3-yl]-benzaldehyde Oxime2 回

生成物 1

HCID 178521337HCID 178521337、化合物収率 52%

試薬・触媒・溶媒 2

HCID 6228Dimethylformamide溶媒HCID 8028Tetrahydrofuran溶媒

反応条件

温度
75 °C

実験手順

To a solution of 2-Chloro-4-[5-(3,5-dichloro-phenyl)-5-trifluoromethyl-4,5-dihydro-isoxazol-3-yl]-benzaldehyde oxime (i.e. the product of Step 3, 250 mg) in DMF (5 mL) was added N-chloro succinimide (80 mg) and heated to 75° C. for 1 h. After cooling, the reaction mixture was poured onto ice-water and extracted with EtOAc. The combined organic layers were washed with water, dried (Na2SO4) and concentrated in vacuo to ¼ of the original volume to obtain the crude hydroxamic acid chloride. This mixture was added to a solution of (2,2,2-trifluoro-ethylcarbamoyl)-methyl-ammoniumchloride (110 mg) and triethylamine (0.29 mL, 0.21 g) in THF (10 mL) and stirred at room temperature over night. After concentration in vacuo, the mixture was purified by chromatography on silica gel to obtain the title compound (176 mg, 52%).

後処理

  1. temperatureAfter cooling
  2. additionthe reaction mixture was poured onto ice-water
  3. extractionextracted with EtOAc
  4. washThe combined organic layers were washed with water
  5. dry with materialdried (Na2SO4)
  6. concentrationconcentrated in vacuo
  7. customto obtain the crude hydroxamic acid chloride
  8. concentrationAfter concentration in vacuo
  9. customthe mixture was purified by chromatography on silica gel

出典と根拠

ORDレコード
ord-04b0a542a3e8461a9e438ced67379d70
出典データセット
uspto-grants-2014_01
特許番号
US08633134B2

反応ノート

読み込み中…