Potassium Carbonate → 5'-(3-Chlorophenyl)-4-methoxy-5''-methyldispiro[cyclohexane-1,2'-[1]-benzofuran-3',2''-imidazol]-4''-amine

HRID 539352ノート

反応式

HRID 539352 の反応式
[Cl:1][C:2]1[CH:3]=[C:4](B(O)O)[CH:5]=[CH:6][CH:7]=1.Br[C:12]1[CH:13]=[CH:14][C:15]2[O:26][C:25]3([CH2:31][CH2:30][CH:29]([O:32][CH3:33])[CH2:28][CH2:27]3)[C:18]3([N:22]=[C:21]([NH2:23])[C:20]([CH3:24])=[N:19]3)[C:16]=2[CH:17]=1.C([O-])([O-])=O.[K+].[K+]>O1CCOCC1.Cl[Pd-]Cl.C1(P(C2C=CC=CC=2)[C-]2C=CC=C2)C=CC=CC=1.[C-]1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=C1.[Fe+2]>[Cl:1][C:2]1[CH:3]=[C:4]([C:12]2[CH:13]=[CH:14][C:15]3[O:26][C:25]4([CH2:27][CH2:28][CH:29]([O:32][CH3:33])[CH2:30][CH2:31]4)[C:18]4([N:22]=[C:21]([NH2:23])[C:20]([CH3:24])=[N:19]4)[C:16]=3[CH:17]=2)[CH:5]=[CH:6][CH:7]=1

参加物

6

反応物 3

HCID 11430Potassium CarbonateHCID 2734323(3-Chlorophenyl)boronic acidHCID 679795525'-Bromo-4-methoxy-5''-methyldispiro[cyclohexane-1,2'-[1]-benzofuran-3',2''-imidazol]-4''-amine2 回

生成物 1

HCID 679793635'-(3-Chlorophenyl)-4-methoxy-5''-methyldispiro[cyclohexane-1,2'-[1]-benzofuran-3',2''-imidazol]-4''-amine収率 47%

試薬・触媒・溶媒 2

HCID 178479795HCID 178479795、化合物触媒HCID 312751,4-Dioxane溶媒

反応条件

温度
120 °C

実験手順

3-Chlorophenylboronic acid (47.7 mg, 0.31 mmol), 5′-bromo-4-methoxy-5″-methyldispiro-[cyclohexane-1,2′-[1]benzofuran-3′,2″-imidazol]-4″-amine (Example 29, 77 mg, 0.20 mmol) and (1,1′-bis(diphenylphosphino)ferrocene)-dichloropalladium(I) (8.37 mg, 10.18 μmol) were put in a microwave vial and dissolved in dry dioxane (2 mL). A 2M aq. solution of K2CO3 (0.204 mL, 0.41 mmol) was added, the mixture was degassed with nitrogen gas and the mixture was heated at 120° C. for 20 min in a microwave reactor. The mixture was combined with a second reaction from 10 mg (0.03 mmol) of 5′-bromo-4-methoxy-5″-methyldispiro[cyclohexane-1,2′-[1]benzofuran-3′,2″-imidazol]-4″-amine and concentrated. EtOAc (7 mL) and a sat. aq. solution of NaHCO3 (5 mL) was added and the phases were separated. The aqueous phase was extracted with EtOAc (5 mL) and the combined organic layers were dried over MgSO4, filtered and evaporated. The crude product was purified by preparative chromatography, yielding 38.5 mg of the title compound (41% yield). 1 H NMR (500 MHz, DMSO-d6) δ ppm 1.21 (m, 1 H), 1.46 (m, 3 H), 1.82 (m, 2 H), 1.98 (m, 2 H), 2.21 (s, 3 H), 3.09 (m, 1 H), 3.22 (s, 3 H), 6.71 (br. s., 2 H), 6.85 (d, 1 H), 6.98 (d, 1 H), 7.32 (m, 1 H), 7.40 (s, 1 H), 7.47 (m, 1 H), 7.51 (m, 1 H), 7.54 (s, 1 H); MS (APCI+) m/z 410 [M+H]+.

後処理

  1. customthe mixture was degassed with nitrogen gas
  2. concentrationconcentrated
  3. additionEtOAc (7 mL) and a sat. aq. solution of NaHCO3 (5 mL) was added
  4. customthe phases were separated
  5. extractionThe aqueous phase was extracted with EtOAc (5 mL)
  6. dry with materialthe combined organic layers were dried over MgSO4
  7. filtrationfiltered
  8. customevaporated
  9. customThe crude product was purified by preparative chromatography

出典と根拠

ORDレコード
ord-2e8f2ad426ff485c9394297ba2b37876
出典データセット
uspto-grants-2014_10
特許番号
US08865911B2

反応ノート

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