Pentapotassium Triphosphate → 4-Chloro-2-[(2,5-dichloro-4-pyridinyl)amino]benzonitrile

HRID 62530

반응식

HRID 62530 반응식
[Cl:1][C:2]1[CH:7]=[C:6](I)[C:5]([Cl:9])=[CH:4][N:3]=1.[NH2:10][C:11]1[CH:18]=[C:17]([Cl:19])[CH:16]=[CH:15][C:12]=1[C:13]#[N:14].[O-]P(OP(OP([O-])([O-])=O)([O-])=O)(=O)[O-].[K+].[K+].[K+].[K+].[K+].C1C=CC(P(C2C(OC3C(P(C4C=CC=CC=4)C4C=CC=CC=4)=CC=CC=3)=CC=CC=2)C2C=CC=CC=2)=CC=1>O1CCOCC1.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[Cl:19][C:17]1[CH:16]=[CH:15][C:12]([C:13]#[N:14])=[C:11]([NH:10][C:6]2[C:5]([Cl:9])=[CH:4][N:3]=[C:2]([Cl:1])[CH:7]=2)[CH:18]=1

참가 물질

7

반응물 4

HCID 61695Pentapotassium TriphosphateHCID 170059Benzonitrile, 2-amino-4-chloro-HCID 4285986Bis[2-(diphenylphosphino)phenyl] etherHCID 534009652,5-Dichloro-4-iodopyridine

생성물 1

HCID 575169164-Chloro-2-[(2,5-dichloro-4-pyridinyl)amino]benzonitrile수율 57.1%

시약·촉매·용매 2

HCID 167845palladium(II) acetate촉매HCID 312751,4-Dioxane용매

실험 절차

To a degassed solution of 2,5-dichloro-4-iodopyridine (4.5 g, 16.43 mmol), 2-amino-4-chlorobenzonitrile (2.507 g, 16.43 mmol) and potassium triphosphate (10.46 g, 49.3 mmol) in 1,4-dioxane (60 ml) stirred under nitrogen at the room temperature was added DPEPhos (0.708 g, 1.314 mmol) and palladium acetate (0.148 g, 0.657 mmol). The reaction mixture was stirred at the reflux for 18 hr. The reaction mixture was filtered. The solution was evaporated. Ether (50 ml) was added and the formed solid was filtered. 4-chloro-2-[(2,5-dichloro-4-pyridinyl)amino]benzonitrile (2.8 g, 9.38 mmol, 57.1% yield) was isolated as an orange solid. 1H NMR (400 MHz, DMSO-d6) ppm 6.70 (s, 1 H) 7.53 (dd, J=8.34, 2.02 Hz, 1 H) 7.65 (d, J=2.02 Hz, 1 H) 7.95 (d, J=8.34 Hz, 1 H) 8.28 (s, 1 H) 9.12 (br. s., 1 H); HPLC Rt=3.50 min, MS (ESI): 298.0, 300.0 [M+H]+.

후처리

  1. temperaturereflux for 18 hr
  2. filtrationThe reaction mixture was filtered
  3. customThe solution was evaporated
  4. additionEther (50 ml) was added
  5. filtrationthe formed solid was filtered

출처 및 근거

ORD 기록
ord-26a121a17bbd42c3bb2d5e1864966d8f
출처 데이터셋
uspto-grants-2016_09
특허 번호
US09446034B2

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