2-Bromo-6-(2-(1-methyl-4-phenyl-1H-imidazol-2-yl)vinyl)pyridine → 6-(2-(1-methyl-4-phenyl-1H-imidazol-2-yl)vinyl)-picolinonitrile

HRID 868971Notes

Reaction equation

Br[C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([CH:8]=[CH:9][C:10]2[N:11]([CH3:21])[CH:12]=[C:13]([C:15]3[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=3)[N:14]=2)[N:3]=1.[C:22]([Zn])#[N:23]>CN(C=O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:21][N:11]1[CH:12]=[C:13]([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[N:14]=[C:10]1[CH:9]=[CH:8][C:4]1[N:3]=[C:2]([C:22]#[N:23])[CH:7]=[CH:6][CH:5]=1

Participants

Conditions

Temperature: 130 °C

Procedure

To a solution of 2-bromo-6-(2-(1-methyl-4-phenyl-1H-imidazol-2-yl)vinyl)pyridine (120 mg, 0.354 mmol) in dry DMF (3 mL) was added cyanozinc (97 mg, 1.062 mmol) and tetrakis(triphenylphosphine)palladium(0) (41 mg, 0.035 mmol). The mixture was stirred at 130° C. for 3 h in a microwave. The residue was then filtered. The filtrate was concentrated and purified by reverse phase column chromatography to yield 6-(2-(1-methyl-4-phenyl-1H-imidazol-2-yl)vinyl)-picolinonitrile (100 mg) as a yellow solid. MS (ESI): m/z 287 [M+H]+.

Workup

filtrationThe residue was then filtered
concentrationThe filtrate was concentrated
custompurified by reverse phase column chromatography

Sources & evidence

ORD record: ord-d6b5ee7a423e445b907801d4e3a7fcbb
Source dataset: uspto-grants-2015_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08969349B2

Reaction notes

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