Water → Trifluoro-methanesulfonic acid 3-cyano-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazol-8-yl ester

HRID 61731

反応式

HRID 61731 の反応式
[OH:1][C:2]1[CH:3]=[CH:4][C:5]2[C:17](=[O:18])[C:16]3[C:15]4[C:10](=[CH:11][C:12]([C:19]#[N:20])=[CH:13][CH:14]=4)[NH:9][C:8]=3[C:7]([CH3:22])([CH3:21])[C:6]=2[CH:23]=1.[F:24][C:25]([F:31])([F:30])[S:26](O)(=[O:28])=[O:27].O>N1C=CC=CC=1>[C:19]([C:12]1[CH:11]=[C:10]2[C:15]([C:16]3[C:17](=[O:18])[C:5]4[CH:4]=[CH:3][C:2]([O:1][S:26]([C:25]([F:31])([F:30])[F:24])(=[O:28])=[O:27])=[CH:23][C:6]=4[C:7]([CH3:21])([CH3:22])[C:8]=3[NH:9]2)=[CH:14][CH:13]=1)#[N:20]

参加物

5

実験手順

8-Hydroxy-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile (Compound A6, 550 mg, 0.189 mmol) was dissolved in pyridine (18 mL), added with anhydrous trifluoromethanesulfonic acid (0.758 ml, 3 eq.), and stirred at room temperature for 30 min. The reaction solution was added to water and then extracted with dichloromethane. The organic layer was dried over magnesium sulfate. The drying agent was removed by filtration and the residues obtained after concentration under reduced pressure were purified by silica gel column chromatography (ethyl acetate/hexane) to obtain the target compound (white powder, 641 mg, 81%).

後処理

  1. extractionextracted with dichloromethane
  2. dry with materialThe organic layer was dried over magnesium sulfate
  3. customThe drying agent was removed by filtration
  4. customthe residues obtained
  5. concentrationafter concentration under reduced pressure
  6. customwere purified by silica gel column chromatography (ethyl acetate/hexane)
  7. customto obtain the target compound (white powder, 641 mg, 81%)

出典と根拠

ORDレコード
ord-a64daa35875b4087aac059c7e785b57b
出典データセット
uspto-grants-2016_09
特許番号
US09440922B2

関連ノート

読み込み中…