2-(Di-tert-butylphosphino)biphenyl → HCID 86659376, compound

HRID 1187673Notes

Reaction equation

Cl[C:2]1[CH:7]=[C:6]([C:8]2[CH:9]=[N:10][N:11]([CH3:13])[CH:12]=2)[CH:5]=[C:4]([Cl:14])[N:3]=1.[F:15][C:16]1[CH:21]=[CH:20][C:19]([C@@H:22]([NH2:24])[CH3:23])=[CH:18][CH:17]=1.C(P(C(C)(C)C)C1C=CC=CC=1C1C=CC=CC=1)(C)(C)C.CC(C)([O-])C.[Na+]>C([O-])(=O)C.[Pd+2].C([O-])(=O)C.C1(C)C=CC=CC=1>[Cl:14][C:4]1[N:3]=[C:2]([NH:24][C@H:22]([C:19]2[CH:20]=[CH:21][C:16]([F:15])=[CH:17][CH:18]=2)[CH3:23])[CH:7]=[C:6]([C:8]2[CH:9]=[N:10][N:11]([CH3:13])[CH:12]=2)[CH:5]=1

Participants

Conditions

Temperature: 85 °C

Procedure

257 mg of 2,6-dichloro-4-(1-methyl-1H-pyrazol-4-yl)pyridine obtained by Step 1, 164 mg of (S)-(−)-1-(4-fluorophenyl)ethylamine, 66 mg of 2-(di-t-butylphosphino)biphenyl, 271 mg of sodium t-butoxide and 25 mg of palladium acetate were added in turn to 6 ml of degassed toluene, and the mixture was stirred at 85° C. for 2 hours under argon atmosphere. The reaction solution was purified by silica gel column chromatography to obtain 240 mg of the objective compound as pale yellow powder.

Workup

customThe reaction solution was purified by silica gel column chromatography

Sources & evidence

ORD record: ord-e5f4864e183b43db84331750e44588fc
Source dataset: uspto-grants-2014_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08673891B2

Reaction notes

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