Hydrochloric Acid → 4-Cyclopropyl-8-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl methoxy)-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile

HRID 2275227ノート

反応式

HRID 2275227 の反応式
[CH:1]1(B2OC(C)(C)C(C)(C)O2)[CH2:3][CH2:2]1.P([O-])([O-])([O-])=O.[K+].[K+].[K+].Br[C:22]1[C:23]([C:51]#[N:52])=[CH:24][CH:25]=[C:26]2[C:34]=1[NH:33][C:32]1[C:31]([CH3:36])([CH3:35])[C:30]3[CH:37]=[C:38]([O:41][CH2:42][C@H:43]4[CH2:47][O:46][C:45]([CH3:49])([CH3:48])[O:44]4)[CH:39]=[CH:40][C:29]=3[C:28](=[O:50])[C:27]2=1.C1(P(C2CCCCC2)C2CCCCC2)CCCCC1.Cl>O.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[CH:1]1([C:22]2[C:23]([C:51]#[N:52])=[CH:24][CH:25]=[C:26]3[C:34]=2[NH:33][C:32]2[C:31]([CH3:35])([CH3:36])[C:30]4[CH:37]=[C:38]([O:41][CH2:42][C@H:43]5[CH2:47][O:46][C:45]([CH3:48])([CH3:49])[O:44]5)[CH:39]=[CH:40][C:29]=4[C:28](=[O:50])[C:27]3=2)[CH2:3][CH2:2]1

参加物

8

反応物 5

HCID 313Hydrochloric AcidHCID 62657Potassium Phosphate, TribasicHCID 75806TricyclohexylphosphineHCID 27580152-Cyclopropyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolaneHCID 668348924-bromo-8-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl methoxy)-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile

生成物 1

HCID 668351654-Cyclopropyl-8-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl methoxy)-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile収率 49.2%

試薬・触媒・溶媒 2

HCID 167845palladium(II) acetate触媒HCID 962Water溶媒

実験手順

Under nitrogen atmosphere, 2-cyclopropyl-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane (13.2 mg, 78.73 μmol) and potassium phosphate (212.27 mg, 212.0 μmol) were dissolved in water (0.20 mL), and the mixture was stirred at room temperature for 15 min. To the reaction solution, 4-bromo-8-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl methoxy)-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile (Compound U8-1, 30.0 mg, 60.56 μmol), palladium acetate (1.36 mg, 6.056 μmol), and tricyclohexylphosphine (toluene solution, 20 wt %, 17.0 mg, 12.11 mmol) were added and the mixture was stirred at 80° C. for 24 hr. The reaction solution was poured into hydrochloric acid (1 M), extracted with ethyl acetate, washed with saturated aqueous solution of sodium bicarbonate and saturated brine, dried over sodium sulfate, and then filtered. The residues obtained after concentration under reduced pressure were purified by silica gel column chromatography (ethyl acetate/hexane) to obtain the title compound (13.6 mg, 49%).

後処理

  1. stirringthe mixture was stirred at 80° C. for 24 hr
  2. extractionextracted with ethyl acetate
  3. washwashed with saturated aqueous solution of sodium bicarbonate and saturated brine
  4. dry with materialdried over sodium sulfate
  5. filtrationfiltered
  6. customThe residues obtained
  7. concentrationafter concentration under reduced pressure
  8. customwere purified by silica gel column chromatography (ethyl acetate/hexane)

出典と根拠

ORDレコード
ord-66a22b78a3404b9692eaa5e0e990ef84
出典データセット
uspto-grants-2015_09
特許番号
US09126931B2

反応ノート

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