HCID 57786250、化合物 → 9-Chloro-1-(2,4-dichlorophenyl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-amine

HRID 1399038ノート

反応式

HRID 1399038 の反応式
[Cl:1][C:2]1[C:10]2[N:9]=[C:8]3[N:11]([C:15]4[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=4[Cl:22])[CH2:12][CH2:13][CH2:14][N:7]3[C:6]=2[C:5]([N+:23]([O-])=O)=[CH:4][CH:3]=1>[Pd].C(O)(=O)C>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([NH2:23])=[C:6]2[C:10]=1[N:9]=[C:8]1[N:11]([C:15]3[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=3[Cl:22])[CH2:12][CH2:13][CH2:14][N:7]21

参加物

4

反応物 1

HCID 57786250HCID 57786250、化合物

生成物 1

HCID 577863289-Chloro-1-(2,4-dichlorophenyl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-amine収率 45.1%

試薬・触媒・溶媒 2

HCID 23938Palladium触媒HCID 176Acetic Acid溶媒

実験手順

A mixture of 9-chloro-1-(2,4-dichlorophenyl)-6-nitro-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazole (123 mg, 0.308 mmol) and, 10% palladium on carbon (12 mg) in acetic acid (5.0 mL) was stirred under hydrogen atmosphere at room temperature for 8 hr. The catalyst was removed by filtration and the filtrate was concentrated in vacuo. The residue was purified by flash chromatography on silica gel eluting with a 50-100% ethyl acetate/n-hexane gradient mixture. The filtrate was concentrated in vacuo to give the title compound (51 mg, 0.139 mmol, 45%) as an oil.

後処理

  1. customThe catalyst was removed by filtration
  2. concentrationthe filtrate was concentrated in vacuo
  3. customThe residue was purified by flash chromatography on silica gel eluting with a 50-100% ethyl acetate/n-hexane gradient mixture
  4. concentrationThe filtrate was concentrated in vacuo

出典と根拠

ORDレコード
ord-5e8ad37c05d7412caf438ae145854aea
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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