Thermally controlled silicone functionalization using selective Huisgen reactions

The thermal azide–alkyne cycloaddition using electron deficient alkynes has previously been applied to the room temperature crosslinking of polysiloxanes. However, only propiolates were used as the alkyne partner to functionalize polysiloxanes under metal-free conditions. Herein, we extend the methodology to alkynes with differing electronic demands and therefore different reactivities, which opens the possibility for selective silicone …