Potassium vinyltrifluoroborate → HCID 89619523, compound

Participants

Reaction Steps

The mixture of 4-methyl-2,1,3-benzoxadiazol-5-yl trifluoromethanesulfonate (3.90 g, 13.8 mmol), potassium vinyltrifluoroborate (2.22 g, 16.6 mmol) and Pd (dppf)2Cl2 (0.5 g) in 50 mL of EtOH and 15 mL of TEA was refluxed under Ar for 4 hours. Concentrated, the residue was purified by silica column chromatography (PE:EtOAc=20:1) to afford 5-ethenyl-4-methyl-2,1,3-benzoxadiazole.

Provenance & Evidence