Potassium Acetate → 6-Bromo-1H-indazole

HRID 1664627

反応式

HRID 1664627 の反応式
F[B-](F)(F)F.[Br:6][C:7]1[CH:8]=[CH:9][C:10]([CH3:15])=[C:11]([N+:13]#[N:14])[CH:12]=1.C([O-])(=O)C.[K+]>C(Cl)(Cl)Cl.C1OCCOCCOCCOCCOCCOC1>[Br:6][C:7]1[CH:12]=[C:11]2[C:10]([CH:15]=[N:14][NH:13]2)=[CH:9][CH:8]=1

参加物

5

反応物 2

HCID 517044Potassium AcetateHCID 805030315-Bromo-2-methylbenzenediazonium tetrafluoroborate

生成物 1

HCID 178424716-Bromo-1H-indazole収率 86.7%

試薬・触媒・溶媒 2

HCID 2855718-Crown-6触媒HCID 6212Chloroform溶媒

実験手順

5-Bromo-2-methylphenyldiazonium tetrafluoroborate (1.50 g) was added to a mixture of potassium acetate (1.0 g) and 18-crown-6 (70 mg) in chloroform (50 mL) at room temperature in portions and then the reaction was stirred for 2 h. The resulting mixture was filtered and washed with chloroform. The filtrate was concentrated, and the residue was dissolved in diethyl ether, which was then washed with water, brine, dried, and the solvent was removed to give the product 6-bromoindazole (0.9 g). The product was used in the next step without further purification.

後処理

  1. filtrationThe resulting mixture was filtered
  2. washwashed with chloroform
  3. concentrationThe filtrate was concentrated
  4. dissolutionthe residue was dissolved in diethyl ether
  5. washwhich was then washed with water, brine
  6. customdried
  7. customthe solvent was removed

出典と根拠

ORDレコード
ord-2eac78ce5b7d4a4eb376115d988d051a
出典データセット
uspto-grants-2011_10
特許番号
US08039471B2

関連ノート

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