Cesium fluoride → 1-(2-Methoxymethyl-3-cyclopropylphenyl)-4-methyl-1,4-dihydrotetraz ol-5-one

Participants

Reaction Conditions

Reaction Steps

A mixture of 1-(2-methoxymethyl-3-bromophenyl)-4-methyl-1,4-dihydrotetrazole-5-one (described in Reference Preparation example 8) 30.1 g, cyclopropylboronic acid 12.9 g, cesium fluoride 46.2 g, [1,1′-bis(diphenylphosphino)ferrocene]palladium(II) dichloride dichloromethane adduct 8.2 g and dioxane 680 ml was stirred at 90° C. for four hours. After cooling the reaction mixture, the reaction mixture was filtered and the filtrate was concentrated under reduced pressure. The resulting residue was subjected to a silica gel column chromatography to give 1-(2-methoxymethyl-3-cyclopropylphenyl)-4-methyl-1,4-dihydrotetrazole-5-one 26.0 g.

Provenance & Evidence