HCID 57786168、化合物 → HCID 57786038、化合物

HRID 1399266ノート

反応式

HRID 1399266 の反応式
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([CH:25]=[O:26])=[C:6]2[C:10]=1[N:9]=[C:8]1[N:11]([C:15]3[C:20]([Br:21])=[CH:19][C:18]([O:22][CH3:23])=[CH:17][C:16]=3[Br:24])[CH2:12][CH2:13][CH2:14][N:7]21.[CH2:27]([Mg]Br)[CH3:28]>O1CCCC1.[Cl-].[NH4+]>[Cl:1][C:2]1[C:10]2[N:9]=[C:8]3[N:11]([C:15]4[C:16]([Br:24])=[CH:17][C:18]([O:22][CH3:23])=[CH:19][C:20]=4[Br:21])[CH2:12][CH2:13][CH2:14][N:7]3[C:6]=2[C:5]([CH:25]([OH:26])[CH2:27][CH3:28])=[CH:4][CH:3]=1

参加物

5

反応物 2

HCID 57786168HCID 57786168、化合物HCID 178418443HCID 178418443、化合物

生成物 1

HCID 57786038HCID 57786038、化合物収率 92%

試薬・触媒・溶媒 2

HCID 8028Tetrahydrofuran溶媒HCID 25517Ammonium Chloride溶媒

反応条件

温度
0 °C

実験手順

To a solution of 9-chloro-1-(2,6-dibromo-4-methoxyphenyl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazole-6-carbaldehyde (80.0 mg, 0.160 mmol) in tetrahydrofuran (3.2 mL) was added dropwise ethylmagnesium bromide (3 M solution in diethyl ether, 0.107 mL, 0.321 mmol) at 0° C., and the mixture was stirred at 0° C. for 5 min. The reaction mixture was diluted with aqueous saturated ammonium chloride, and extracted with ethyl acetate. The combined organic layer was washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel eluting with a 10-50% ethyl acetate/n-hexane gradient mixture to give the title compound as a colorless solid (78.0 mg, 0.147 mmol, 92%).

後処理

  1. extractionextracted with ethyl acetate
  2. washThe combined organic layer was washed with brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by flash column chromatography on silica gel eluting with a 10-50% ethyl acetate/n-hexane gradient mixture

出典と根拠

ORDレコード
ord-13328ddd64894a0cb2db54b438062be7
出典データセット
uspto-grants-2014_12
特許番号
US08901141B2

反応ノート

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