Boron tribromide → HCID 178519606、化合物

HRID 1817498ノート

反応式

HRID 1817498 の反応式
C[O:2][C:3]1[CH:4]=[C:5]([C:9]([C:11]2[C:19]3[C:14](=[C:15]([C:20]([F:23])([F:22])[F:21])[CH:16]=[CH:17][CH:18]=3)[NH:13][N:12]=2)=[O:10])[CH:6]=[CH:7][CH:8]=1.B(Br)(Br)Br>C(Cl)Cl>[OH:2][C:3]1[CH:4]=[C:5]([C:9]([C:11]2[C:19]3[C:14](=[C:15]([C:20]([F:23])([F:22])[F:21])[CH:16]=[CH:17][CH:18]=3)[NH:13][N:12]=2)=[O:10])[CH:6]=[CH:7][CH:8]=1

参加物

4

反応物 2

HCID 25134Boron tribromideHCID 178490436HCID 178490436、化合物

生成物 1

HCID 178519606HCID 178519606、化合物収率 69.5%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

A solution of (3-methoxyphenyl)[7-(trifluoromethyl)-1H-indazol-3-yl]methanone (0.03 g, 0.094 mmol) in 2 mL of CH2Cl2 containing 0.2 mL cyclohexene was cooled to −78° C. under an argon atmosphere. Boron tribromide (0.035 mL, 0.375 mmol) was added in one portion and the reaction mixture was allowed to warm to ambient temperature. The reaction was quenched by the careful addition of methanol. The reaction mixture was partitioned with EtOAc and 1 N HCl. The organic phase was washed with brine and dried (Na2SO4). The solvents were removed in vacuo and the residue purified by flash chromatography to give 0.02 g of the title compound.

後処理

  1. customThe reaction was quenched by the careful addition of methanol
  2. customThe reaction mixture was partitioned with EtOAc and 1 N HCl
  3. washThe organic phase was washed with brine
  4. dry with materialdried (Na2SO4)
  5. customThe solvents were removed in vacuo
  6. customthe residue purified by flash chromatography

出典と根拠

ORDレコード
ord-94048bf3507f4ebd8dec63e16b1569da
出典データセット
uspto-grants-2009_10
特許番号
US07598286B2

反応ノート

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