反应详情

A mixture of 1-(2-bromomethyl-3-bromophenyl)-4-methyl-1,4-dihydrotetrazole-5-one (described in Reference Preparation example 11) 3.1 g, 2-methyl-4-(3,4,5-trimethyl-pyrazol-1-yl)-phenol (described in Reference Preparation example 20) 1.6 g, potassium carbonate 1.3 g and acetonitrile 70 ml was stirred with heating under reflux for six hours, and the reaction mixture was then filtered and was concentrated under reduced pressure. The resulting residue was subjected to a silica gel column chromatography to give 1-{ 3-bromo-2-[2-methyl-4-(3,4,5-trimethyl-pyrazol-1-yl)-phenoxymethyl]-phenyl}-4-methyl-1,4-dihydrotetrazole-5-one 3.1 g.

1. temperaturewith heating
2. temperatureunder reflux for six hours
3. filtrationthe reaction mixture was then filtered
4. concentrationwas concentrated under reduced pressure