Phosphorus oxychloride → HCID 23726818、化合物
反応式
[Cl:1][CH2:2][C:3]1[NH:4][C:5](=O)[C:6]2[C:11]([C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=3)=[CH:10][S:9][C:7]=2[N:8]=1.P(Cl)(Cl)([Cl:21])=O>ClCCl>[Cl:21][C:5]1[C:6]2[C:11]([C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=3)=[CH:10][S:9][C:7]=2[N:8]=[C:3]([CH2:2][Cl:1])[N:4]=1参加物
4
実験手順
A stirred suspension of 2-chloromethyl-5-phenyl-3H-thieno[2,3-d]pyrimidin-4-one (1.5 g, 5.42 mmol) and phosphoryl chloride (23 ml) was heated under reflux for 7 hours and then left to stand at ambient temperature for 18 hours. The excess phosphoryl chloride was removed in vacuo to give a dark residue, which was dissolved in dichloromethane (100 ml) and then washed with water (2×100 ml) followed by saturated sodium hydrogen carbonate solution (100 ml). The organic extract was dried (MgSO4) and the solvent was removed in vacuo to give the crude product. Purification by flash chromatography (silica) eluting with dichloromethane gave 4-chloro-2-chloromethyl-5-phenylthieno[2,3-d]pyrimidine as a pale-yellow solid (1.42 g).
後処理
- temperaturewas heated
- temperatureunder reflux for 7 hours
- waitleft
- customThe excess phosphoryl chloride was removed in vacuo
- customto give a dark residue, which
- washwashed with water (2×100 ml)
- extractionThe organic extract
- dry with materialwas dried (MgSO4)
- customthe solvent was removed in vacuo
- customto give the crude product
- customPurification by flash chromatography (silica)
- washeluting with dichloromethane
出典と根拠
- ORDレコード
- ord-7128eea9862b4c6e968acf49ab205c33
- 出典データセット
- uspto-grants-2011_09
- 特許番号
- US08022076B2
反応ノート
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