Potassium Phosphate, Tribasic → 4-[4-Amino-3-(4,4-dimethyl-cyclohex-1-enyl)-phenyl]-piperidine-2,6-dione

HRID 340537

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HRID 340537 반응식
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]2[CH2:13][C:12](=[O:14])[NH:11][C:10](=[O:15])[CH2:9]2)=[CH:4][C:3]=1Br.[O-]P([O-])([O-])=O.[K+].[K+].[K+].[CH3:25][C:26]1([CH3:35])[CH2:31][CH2:30][C:29](B(O)O)=[CH:28][CH2:27]1.C1(P(C2CCCCC2)C2C=CC=CC=2C2C=CC=CC=2)CCCCC1>C1(C)C=CC=CC=1.O1CCOCC1.CCOC(C)=O.CC([O-])=O.CC([O-])=O.[Pd+2]>[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]2[CH2:13][C:12](=[O:14])[NH:11][C:10](=[O:15])[CH2:9]2)=[CH:4][C:3]=1[C:29]1[CH2:30][CH2:31][C:26]([CH3:35])([CH3:25])[CH2:27][CH:28]=1

참가 물질

9

반응물 4

HCID 62657Potassium Phosphate, TribasicHCID 27342162-(Dicyclohexylphosphino)biphenylHCID 441195554,4-Dimethylcyclohexen-1-ylboronic acidHCID 597712744-(4-Amino-3-bromo-phenyl)-piperidine-2,6-dione

생성물 1

HCID 597712924-[4-Amino-3-(4,4-dimethyl-cyclohex-1-enyl)-phenyl]-piperidine-2,6-dione수율 21.1%

시약·촉매·용매 4

HCID 167845palladium(II) acetate촉매HCID 1140Toluene용매HCID 8857Ethyl Acetate용매HCID 312751,4-Dioxane용매

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온도
80 °C

실험 절차

A solution of 600 mg (2.12 mmol) of 4-(4-amino-3-bromo-phenyl)-piperidine-2,6-dione (as prepared in Example 1, step (j)) in toluene (20 mL) and dioxane (20 mL) was treated with 900 mg (4.24 mmol) of K3PO4, 424 mg (2.76 mmol) of 4,4-dimethyl-cyclohex-1-enylboronic acid, and 297 mg (0.848 mmol) of 2-(dicyclohexylphosphino)biphenyl. The mixture was degassed via sonication, placed under Ar, treated with 47.6 mg (0.212 mmol) of Pd(OAc)2, and heated to 80° C. for 2.5 h. The mixture was diluted with EtOAc (100 mL) and washed with water (2×70 mL). The aqueous layer was extracted with EtOAc (100 mL), the combined organic layers were dried (MgSO4) and concentrated in vacuo. Silica gel chromatography of the residue on a 50-g Varian MegaBond Elut SPE column with 25-50% EtOAc-hexane afforded 140 mg (21%) of the title compound as a tan solid: Mass spectrum (ESI, m/z): Calcd. for C19H24N2O2, 313.2 (M+H). found 313.1.

후처리

  1. customThe mixture was degassed via sonication
  2. washwashed with water (2×70 mL)
  3. extractionThe aqueous layer was extracted with EtOAc (100 mL)
  4. dry with materialthe combined organic layers were dried (MgSO4)
  5. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-3e102724f7704f73bedb6328f097668f
출처 데이터셋
uspto-grants-2014_11
특허 번호
US08895584B2

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