Organoaluminum hydrides catalyzed hydroboration of carbonates, esters, carboxylic acids, and carbon dioxide

Abstract

Herein, Al-catalyzed hydroboration of carbonates, esters, carboxylic acids, and CO 2 , with HBpin, is described, which provides a new route for the reduction of CO group compounds. We also conducted an in-depth study of the reduction mechanism of carbonate.

The reductive functionalization of the CO unit of carbonates, carboxylic acids, esters, and CO 2 , respectively has received great attention since its introduction. This method is often used industrially for the synthesis of high value-added energy products in chemistry. This opens up a new way forward to reduce greenhouse gases and the consumption of traditional energy sources. Herein, we report an earth-abundant, cheap, and readily available aluminum dihydride, which can catalyze the reduction of a range of carbonates, esters, carboxylic acids, and CO 2 , respectively in the presence of pinacolborane as a reducing agent. Moreover, we demonstrate that the reaction can proceed to obtain good yield products under mild conditions, with low catalyst loading and solvent-free reactions. The mechanism of the catalytic reduction of carbonates has been investigated.

Herein, Al-catalyzed hydroboration of carbonates, esters, carboxylic acids, and CO 2 , with HBpin, is described, which provides a new route for the reduction of CO group compounds. We also conducted an in-depth study of the reduction mechanism of carbonate.

The reductive functionalization of the CO unit of carbonates, carboxylic acids, esters, and CO 2 , respectively has received great attention since its introduction. This method is often used industrially for the synthesis of high value-added energy products in chemistry. This opens up a new way forward to reduce greenhouse gases and the consumption of traditional energy sources. Herein, we report an earth-abundant, cheap, and readily available aluminum dihydride, which can catalyze the reduction of a range of carbonates, esters, carboxylic acids, and CO 2 , respectively in the presence of pinacolborane as a reducing agent. Moreover, we demonstrate that the reaction can proceed to obtain good yield products under mild conditions, with low catalyst loading and solvent-free reactions. The mechanism of the catalytic reduction of carbonates has been investigated.