1-[(4-fluorophenyl)methyl]pyrazol-3-amine → HCID 46216421, compound

HRID 2063691Notes

Reaction equation

Br[C:2]1[CH:7]=[CH:6][C:5]([N:8]2[CH:12]=[C:11]([CH3:13])[N:10]=[CH:9]2)=[C:4]([O:14][CH3:15])[CH:3]=1.[F:16][C:17]1[CH:29]=[CH:28][C:20]([CH2:21][N:22]2[CH:26]=[CH:25][C:24]([NH2:27])=[N:23]2)=[CH:19][CH:18]=1.[O-]C1C=CC=CC=1.[Na+].C1(P(C2C=CC=CC=2)C2C3OC4C(=CC=CC=4P(C4C=CC=CC=4)C4C=CC=CC=4)C(C)(C)C=3C=CC=2)C=CC=CC=1>O1CCOCC1.O>[F:16][C:17]1[CH:29]=[CH:28][C:20]([CH2:21][N:22]2[CH:26]=[CH:25][C:24]([NH:27][C:2]3[CH:7]=[CH:6][C:5]([N:8]4[CH:12]=[C:11]([CH3:13])[N:10]=[CH:9]4)=[C:4]([O:14][CH3:15])[CH:3]=3)=[N:23]2)=[CH:19][CH:18]=1

Participants

Conditions

Temperature: 130 °C

Procedure

A mixture of 1-(4-bromo-2-methoxy-phenyl)-4-methyl-1H-imidazole (WO2009076352, Example 1; 50 mg, 0.19 mmol), 1-(4-fluoro-benzyl)-1H-pyrazol-3-ylamine (45 mg, 0.40 mmol), sodium phenoxide (35 mg, 0.57 mmol), tris(dibenzylideneacetone)dipalladium chloroform complex (3 mg, 0.003 mmol) and 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene=Xanthphos (7 mg, 0.012 mmol) in dioxane (2 ml) was heated under an argon atmosphere in the microwave to 130° C. for 15 min. The mixture was diluted with water, extracted with dichloromethane and the product purified by chromatography on silica gel using dichloromethane/methanol as eluent. The title compound was obtained as a light yellow solid (Yield=42%). MS ISP (m/e): 378.4 (100) [(M+H)+].

Workup

extractionextracted with dichloromethane
customthe product purified by chromatography on silica gel

Sources & evidence

ORD record: ord-8b741d5b33e445ea80cb9d924fd57542
Source dataset: uspto-grants-2012_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08288403B2

Reaction notes

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