Triethylamine → 1-Methyl-3-trifluoromethyl-1H-pyrazole-4-sulfonic acid [1-(3,5'-difluoro-2'-methoxy-biphenyl-4-yl)-ethyl]-amide

HRID 2422879Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2422879
[F:1][C:2]1[CH:3]=[C:4]([C:11]2[CH:16]=[C:15]([F:17])[CH:14]=[CH:13][C:12]=2[O:18][CH3:19])[CH:5]=[CH:6][C:7]=1[CH:8]([NH2:10])[CH3:9].C(N(CC)CC)C.[CH3:27][N:28]1[CH:32]=[C:31]([S:33](Cl)(=[O:35])=[O:34])[C:30]([C:37]([F:40])([F:39])[F:38])=[N:29]1>ClCCl>[F:1][C:2]1[CH:3]=[C:4]([C:11]2[CH:16]=[C:15]([F:17])[CH:14]=[CH:13][C:12]=2[O:18][CH3:19])[CH:5]=[CH:6][C:7]=1[CH:8]([NH:10][S:33]([C:31]1[C:30]([C:37]([F:40])([F:38])[F:39])=[N:29][N:28]([CH3:27])[CH:32]=1)(=[O:35])=[O:34])[CH3:9]

Komponenten

5

Edukt 3

HCID 8471TriethylamineHCID 27945611-Methyl-3-(trifluoromethyl)-1H-pyrazole-4-sulfonyl chlorideHCID 672458741-(3,5'-Difluoro-2'-methoxy-biphenyl-4-yl)-ethylamine

Produkt 1

HCID 672454371-Methyl-3-trifluoromethyl-1H-pyrazole-4-sulfonic acid [1-(3,5'-difluoro-2'-methoxy-biphenyl-4-yl)-ethyl]-amideAusbeute 70,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

1-(3,5′-Difluoro-2′-methoxy-biphenyl-4-yl)-ethylamine was prepared in a similar manner to 1-(2-allyl-5′-fluoro-2′-methoxy-biphenyl-4-yl)-ethylamine (Example 34) using 4′-bromo-2′-fluoroacetophenone to give 1-(4-bromo-2-fluoro-phenyl)-ethylamine. To a solution of 1-(3,5′-difluoro-2′-methoxy-biphenyl-4-yl)-ethylamine (20.0 mg, 0.08 mmol) in dichloromethane (1 ml) was added triethylamine (8.1 mg, 0.08 mmol) and 1-methyl-3-trifluoromethyl-1H-pyrazole-4-sulfonyl chloride (14.2 mg, 0.06 mmol). The solution was stirred overnight then the solvent evaporated and the residue purified by flash chromatography over silica gel eluting with dichloromethane. Evaporation of solvent under reduced pressure gave the title compound (20 mg). 1H NMR (400 MHz, CDCl3): δ 7.51 (s, 1H), 7.21-7.16 (m, 2H), 7.14-7.09 (m, 1H), 7.05-6.95 (m, 2H), 6.93-6.88 (m, 1H), 5.11 (d, 1H), 4.76 (dq, 1H), 3.81 (s, 3H), 3.73 (s, 3H), 1.55 (d, 3H) ppm; MS (ESI) m/z: 498.3 [M+Na]+.

Aufarbeitung

  1. customthe solvent evaporated
  2. customthe residue purified by flash chromatography over silica gel eluting with dichloromethane
  3. customEvaporation of solvent under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-c6443eb4b2f64e40aedb5014d111d09a
Quelldatensatz
uspto-grants-2011_06
Patentnummer
US07960365B2

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