Cesium carbonate → HCID 57466830、化合物

HRID 601634ノート

反応式

HRID 601634 の反応式
[C:1]([O:5][C:6](=[O:15])[NH:7][CH2:8][CH2:9][C:10]1[NH:14][N:13]=[N:12][N:11]=1)([CH3:4])([CH3:3])[CH3:2].C(=O)([O-])[O-].[Cs+].[Cs+].Br[CH2:23][CH2:24][F:25]>CN(C=O)C>[C:1]([O:5][C:6](=[O:15])[NH:7][CH2:8][CH2:9][C:10]1[N:14]([CH2:23][CH2:24][F:25])[N:13]=[N:12][N:11]=1)([CH3:4])([CH3:2])[CH3:3]

参加物

5

反応物 3

HCID 10796Cesium carbonateHCID 129822-Fluoroethyl bromideHCID 178453348HCID 178453348、化合物

生成物 1

HCID 57466830HCID 57466830、化合物

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

To a solution comprising [2-(1H-Tetrazol-5-yl)-ethyl]-carbamic acid tert-butyl ester (EP 449523) (0.125 g, 0.586 mmol) in DMF (5 ml) is added caesium carbonate (0.23 g, 0.703 mmol) followed by 1-bromo-2-fluoroethane (0.174 ml, 2.344 mmol) and the reaction mixture is left to stir at room temperature for 3 days. The solvent is removed in vacuo and the crude residue is purified by flash silica chromatography (elution 3:2 increasing to 1:4 hexane/ethyl acetate) to afford the titled compound and {2-[1-(2-Fluoro-ethyl)-1H-tetrazol-5-yl]-ethyl}-carbamic acid tert-butyl ester.

後処理

  1. waitthe reaction mixture is left
  2. customThe solvent is removed in vacuo
  3. customthe crude residue is purified by flash silica chromatography (elution 3:2 increasing to 1:4 hexane/ethyl acetate)

出典と根拠

ORDレコード
ord-fa8945977530468aac78c07e851a36e8
出典データセット
uspto-grants-2011_03
特許番号
US07902375B2

反応ノート

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