Tributylvinyltin → 5-Bromo-2,7-dimethyl-6-vinylquinoline

HRID 2207030Notes

Reaction equation

FC(F)(F)S(O[C:7]1[C:8]([Br:19])=[C:9]2[C:14](=[CH:15][C:16]=1[CH3:17])[N:13]=[C:12]([CH3:18])[CH:11]=[CH:10]2)(=O)=O.[CH2:22]([Sn](CCCC)(CCCC)C=C)[CH2:23]CC.[Cl-].[Li+]>CN(C=O)C.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[Br:19][C:8]1[C:7]([CH:22]=[CH2:23])=[C:16]([CH3:17])[CH:15]=[C:14]2[C:9]=1[CH:10]=[CH:11][C:12]([CH3:18])=[N:13]2

Participants

Conditions

Temperature: 80 °C

Procedure

PdCl2(PPh3)2 (207 mg, 0.30 mmol) were added to a mixture 5-bromo-2,7-dimethylquinolin-6-yl trifluoromethanesulfonate (1.13 g, 2.95 mmol), tributyl-vinyl-stannane (0.95 mL, 3.25 mmol), lithium chloride (375 mg, 8.85 mmol) in DMF (30 mL). The reaction mixture was flushed with nitrogen, heated at 80° C. for 4 hours, cooled to room temperature. The mixture was diluted by ethyl acetate, washed with NaHCO3 solution, water and brine, dried over Na2SO4, filtered and concentrated in vacuo. The obtained residue was purified by flash chromatography to provide the desired product. LCMS-ESI+: calc'd for C13H12BrN: 262.0 (M+H+); Found: 262.1 (M+H+).

Workup

customThe reaction mixture was flushed with nitrogen
temperaturecooled to room temperature
additionThe mixture was diluted by ethyl acetate
washwashed with NaHCO3 solution, water and brine
dry with materialdried over Na2SO4
filtrationfiltered
concentrationconcentrated in vacuo
customThe obtained residue was purified by flash chromatography

Sources & evidence

ORD record: ord-4ee15febd3ec48f5aeaec4c0a4e4d97d
Source dataset: uspto-grants-2016_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09376392B2

Reaction notes

Loading…