Atom-Economical Synthesis of Lewis Acidic Boron Containing Porous Organic Polymers via Hydroboration Polymerization for Basic Chemical Capture

Atom economy is one of the main concerns for material synthesis. Here, the facile synthesis of Lewis acidic boron-containing porous organic polymers (B-POPs) via hydroboration polymerization reaction of commercially available borane dimethyl sulfide complex (BH3 center dot SMe2) with multi-alkynes under mild reaction conditions is presented. This new synthetic method for B-POPs has the advantage of high atom economy. The resulted porous alkenyl borane polymers (PABPs) have unique features such as high boron content, strong Lewis acidity, and high surface areas. Owing to the strong Lewis acid-base interactions, PABPs exhibit excellent adsorptive capacity toward triethylamine (up to 841 mg g-1) and pyridine (up to 1396 mg g-1) vapor. Atom-economical synthesis of Lewis acidic boron-containing porous organic polymers (B-POPs) via hydroboration polymerization reaction is presented for the first time. This strategy affords a new type of B-POPs with high boron content, strong Lewis acidity.image

Automated summary

This article presents a facile synthesis method for Lewis acidic boron-containing porous organic polymers (B-POPs) via hydroboration polymerization reaction. The method has high atom economy and results in porous alkenyl borane polymers (PABPs) with high boron content and strong Lewis acidity.