Potassium Carbonate → HCID 59773474、化合物
反応式
Cl.[N:2]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][C:10]=2[SH:12])[CH:5]=[CH:4][CH:3]=1.C(=O)([O-])[O-].[K+].[K+].[CH3:19][O:20][C:21](=[O:30])[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=1[CH2:28]Br>CN(C=O)C.C(O)(=O)CC(CC(O)=O)(C(O)=O)O>[CH3:19][O:20][C:21](=[O:30])[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=1[CH2:28][S:12][C:10]1[CH:9]=[CH:8][CH:7]=[C:6]2[C:11]=1[N:2]=[CH:3][CH:4]=[CH:5]2参加物
6
実験手順
A solution of 4.0 eq. of quinoline-8-thiol hydrochloride (39, Aldrich, cat. no. 35,978-5) was dissolved in DMF. To this was added 32.0 eq. of potassium carbonate. The mixture was stirred at room temperature for 20 minutes and 1.0 eq of 2-bromomethyl-benzoic acid methyl ester (40, J. Org. Chem, 2002, 67, 2160) was added. The mixture was stirred at room temperature for a time sufficient enough for reaction completion. The mixture was diluted with 0.1 M citric acid and extracted with EtOAc. The organic layer was washed with brine and dried with Na2SO4, filtered, and concentrated. The product was purified by flash chromatography on silica gel using a mixture of EtOAc-hexanes as eluant to give 41.
後処理
- stirringThe mixture was stirred at room temperature for a time sufficient enough for reaction completion
- extractionextracted with EtOAc
- washThe organic layer was washed with brine
- dry with materialdried with Na2SO4
- filtrationfiltered
- concentrationconcentrated
- customThe product was purified by flash chromatography on silica gel using
- additiona mixture of EtOAc-hexanes as eluant
出典と根拠
- ORDレコード
- ord-e8a31bada58841b4bbb0df52f1feb51f
- 出典データセット
- uspto-grants-2008_10
- 特許番号
- US07432379B2
反応ノート
読み込み中…