Efficient and multi-function compatible click-reaction of organosilanes

Abstract

The synthesis of organotriethoxysilanes by click chemistry was studied using the recyclable, multidentate catalyst [Cu(C18tren)]Br. For the evaluation, alkyne precursors containing some of the more common organic functions were reacted with a triethoxy silyl group containing azide. The procedure allowed the isolation of the desired products in high yields and high purity. Especially remarkable is the facility of the catalyst removal by simple filtration and evaporation. The catalyst is concluded to be ideal for the synthesis of moisture sensitive organotriethoxysilanes.