Diisopropylethylamine → tert-Butyl 4-(6-bromopyridin-2-yl)-1,4-diazepane-1-carboxylate

HRID 57863

反応式

HRID 57863 の反応式
[Br:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4](F)[N:3]=1.[N:9]1([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:15][CH2:14][CH2:13][NH:12][CH2:11][CH2:10]1.CCN(C(C)C)C(C)C>C(O)C>[Br:1][C:2]1[N:3]=[C:4]([N:12]2[CH2:13][CH2:14][CH2:15][N:9]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:10][CH2:11]2)[CH:5]=[CH:6][CH:7]=1

参加物

5

反応物 3

HCID 81531DiisopropylethylamineHCID 6394382-Bromo-6-fluoropyridineHCID 2756058Tert-butyl 1,4-diazepane-1-carboxylate

生成物 1

HCID 70700340tert-Butyl 4-(6-bromopyridin-2-yl)-1,4-diazepane-1-carboxylate収率 50.1%

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

反応条件

温度
100 °C

実験手順

A mixture of 2-bromo-6-fluoropyridine (500 mg, 2.8 mmol), tert-butyl 1,4-diazepane-1-carboxylate (568 mg, 2.8 mmol) in DIPEA (1.83 g, 14.2 mmol) and ethanol (10 mL) was heated at 100° C. for 16 hours. After it was cooled, the solvent was removed under reduced pressure, and the residue was diluted with EtOAc (100 mL) and washed with brine. The organic layer was dried over Na2SO4 and concentrated under reduced pressure to afford tert-butyl 4-(6-bromopyridin-2-yl)-1,4-diazepane-1-carboxylate as a colorless oil (500 mg, 50%). MS (ESI) m/z: 356 [M+H]+.

後処理

  1. temperatureAfter it was cooled
  2. customthe solvent was removed under reduced pressure
  3. additionthe residue was diluted with EtOAc (100 mL)
  4. washwashed with brine
  5. dry with materialThe organic layer was dried over Na2SO4
  6. concentrationconcentrated under reduced pressure

出典と根拠

ORDレコード
ord-a8c79bfab3124feab3aff312cbab4f18
出典データセット
uspto-grants-2016_09
特許番号
US09434725B2

関連ノート

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