CAS 1020174-04-2: 1-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

1-Methylpyrazole-3-boronic acid pinacol ester

1-Methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1h-pyrazole is a reagent in organic synthesis. It is an intermediate in the synthesis of pinacol esters and isomers thereof. 1-Methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1h pyrazole can be prepared by diazotization with sodium nitrite and hydrochloric acid followed by heating in an alcoholic solution of pinacol. The synthetic method for this compound has been described.br>br> The target product of this chemical reaction is pinacol ester. Pinacol esters are used as intermediates for the synthesis of many other compounds including pharmaceuticals and fragrances. Diazotization with sodium nitrite and hydrochlor