2-Methylthio-4-methyl-5-(2,4,6-trifluorophenyl)-6-chloropyrimidine → 2-Methylthio-4-methyl-5-(2,4,6-trifluorophenyl)-6-(2-methylbutyl)pyrimidine

Participants

Reaction Steps

At 50° C., 70 ml (0.035 mol) of a 0.5 M solution of 2-methylbutylmagnesium bromide (in tetrahydrofuran) were added to 9.1 g (30 mmol) of 2-methylthio-4-methyl-5-(2,4,6-trifluorophenyl)-6-chloropyrimidine (Example 1.1.) and about 200 mg of bisdiphenylphosphinoferrocenepalladium dichloride in 90 ml of toluene. After about 2 hours, an additional about 200 mg of bisdiphenylphosphinoferrocenepalladium dichloride and, a little at a time, a further 50 ml of a 0.5 M solution of 2-methylbutyl-magnesium bromide (in tetrahydrofuran) were added. The reaction was monitored by HPLC.

Provenance & Evidence