Tributylvinyltin → Methyl 1-methyl-6-vinyl-1H-indazole-3-carboxylate

Participants

Reaction Conditions

Reaction Steps

To the solution of methyl 6-bromo-1-methyl-1H-indazole-3-carboxylate (60 mg, 0.22 mmol) in DMF (10 mL), tributyl(vinyl)tin (99 μL, 0.34 mmol), Pd(Ph3)4 (11 mg, 9 μmol) was added. After the addition was completed, the mixture was stirred at 90° C. for 4 h under Ar. Then the solvent was removed under reduced pressure. Purification by CC afforded compound 9a (52 mg, 88%).

Provenance & Evidence