N-bromobutanimide → HCID 67148260、化合物

HRID 2219053ノート

反応式

HRID 2219053 の反応式
[C:1]([O:9][C:10]1[C:20](=[O:21])[N:14]2[CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][C:13]2=[N:12][C:11]=1[C:22]([O:24][CH3:25])=[O:23])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[Br:26]N1C(=O)CCC1=O>C(Cl)(Cl)(Cl)Cl>[C:1]([O:9][C:10]1[C:20](=[O:21])[N:14]2[CH2:15][CH2:16][CH2:17][CH2:18][CH:19]([Br:26])[C:13]2=[N:12][C:11]=1[C:22]([O:24][CH3:25])=[O:23])(=[O:8])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

参加物

4

反応物 2

HCID 67184N-bromobutanimideHCID 67147764HCID 67147764、化合物

生成物 1

HCID 67148260HCID 67148260、化合物

試薬・触媒・溶媒 1

HCID 5943Carbon Tetrachloride溶媒

実験手順

A mixture of methyl 3-(benzoyloxy)-4-oxo-4,6,7,8,9,10-hexahydropyrimido[1,2-a]azepine-2-carboxylate, N-bromo-succinimide (2 eq.) and α,α′-azoisobutyronitrile (0.45 eq.) in carbon tetrachloride was stirred under reflux for 14 hour. The mixture was cooled to room temperature, the succinimide was filtered off and the solvent was removed under reduced pressure. Methyl 3-(benzoyloxy)-10-bromo-4-oxo-4,6,7,8,9,10-hexahydropyrimido[1,2-a]azepine-2-carboxylate was obtained after flash chromatography (eluents petroleum ether/ethyl acetate, 8:2) as a pale yellow solid.

後処理

  1. temperatureunder reflux for 14 hour
  2. filtrationthe succinimide was filtered off
  3. customthe solvent was removed under reduced pressure

出典と根拠

ORDレコード
ord-8e25f124c51d45db97221a8361f9e441
出典データセット
uspto-grants-2008_08
特許番号
US07414045B2

反応ノート

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