反应详情

A mixture of 1-(2-bromomethyl-3-methylthiophenyl)-4-methyl-1,4-dihydrotetrazole-5-one (described in Preparation example 13) 1.5 g, 4-(5-chloro-1,4-dimethyl-1H-pyrazol-3-yl)-2-methyl-phenol 1 g, potassium carbonate 0.9 g and acetonitrile 20 ml was stirred with heating under reflux for five hours. The reaction mixture was concentrated and the resulting residue was subjected to a silica gel column chromatography to give 1-{3-methylthio-2-[2-methyl-4-(5-chloro-1,4-dimethyl-1H-pyrazol-3-yl)-phenoxymethyl]-phenyl}-4-methyl-1,4-dihydrotetrazole-5-one (hereinafter, referred to as “Present compound 38”) 2.1 g.

1. temperaturewith heating
2. temperatureunder reflux for five hours
3. concentrationThe reaction mixture was concentrated