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Ammonium Chloride → 2-Benzyl-4-chloro-5,7-difluoro-3-methylquinoline

HRID 1431457
ノート
印刷プレビュー

反応式

HRID 1431457 の反応式
Cl[C:2]1[C:11]([CH3:12])=[C:10]([Cl:13])[C:9]2[C:4](=[CH:5][C:6]([F:15])=[CH:7][C:8]=2[F:14])[N:3]=1.[Br-].[CH2:17]([Zn+])[C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1.[Cl-].[NH4+]>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C1COCC1>[CH2:17]([C:2]1[C:11]([CH3:12])=[C:10]([Cl:13])[C:9]2[C:4](=[CH:5][C:6]([F:15])=[CH:7][C:8]=2[F:14])[N:3]=1)[C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

6

反応物 3

HCID 25517Ammonium ChlorideHCID 596310402,4-Dichloro-5,7-difluoro-3-methylquinolineHCID 178419772HCID 178419772、化合物

生成物 1

HCID 596314902-Benzyl-4-chloro-5,7-difluoro-3-methylquinoline収率 51%

試薬・触媒・溶媒 2

HCID 178418397HCID 178418397、化合物触媒
HCID 8028
Tetrahydrofuran
溶媒

反応条件

温度
60 °C

実験手順

A screw cap vial was sequentially charged with 2,4-dichloro-5,7-difluoro-3-methylquinoline (250 mg, 1.00 mmol), tetrakis(triphenylphosphine)palladium(0) (116 mg, 0.10 mmol), and dry THF (2.52 mL). The mixture was then sparged with N2 prior to the addition of benzylzinc(II) bromide (0.5M in THF, 2.12 mL, 1.06 mmol). The reaction was stirred under N2 at 60° C. for 2 h. The reaction was then cooled to rt, slowly poured over satd aq. ammonium chloride and ice, and extracted with EtOAc. The organic layer was washed with water and brine, dried (MgSO4), and concentrated. The crude product then was triturated with toluene, affording 2-benzyl-4-chloro-5,7-difluoro-3-methylquinoline (155 mg, 0.510 mmol). Mass Spectrum (ESI) m/e=304.0 (M+1).

後処理

  1. customA screw cap
  2. customThe mixture was then sparged with N2
  3. temperatureThe reaction was then cooled to rt
  4. extractionextracted with EtOAc
  5. washThe organic layer was washed with water and brine
  6. dry with materialdried (MgSO4)
  7. concentrationconcentrated
  8. customThe crude product then was triturated with toluene

出典と根拠

ORDレコード
ord-1fdf05aada1840258588ad4206f2e91a
出典データセット
uspto-grants-2015_01
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08940724B2

反応ノート

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