Chemoselective Hydrogenolysis of Urethanes to Formamides and Alcohols in the Presence of More Electrophilic Carbonyl Compounds

Опубликована: Май 15, 2024

The development of methods for the chemical recycling polyurethanes is recognized as an urgent issue. Herein, we report Ir-catalyzed hydrogenolysis urethane C–O bond to produce formamides and alcohols, where both ester amide functionalities are tolerated. chemoselectivity observed counterintuitive generally accepted electrophilicity order carbonyl compounds. Hydrogenolysis urea isocyanurate, potential byproducts in polycondensation process polyurethanes, achieved alongside selective degradation themselves, which affords diformamides diols. present catalysis offers a novel method polyurethane-containing polymer waste.

Язык: Английский

Highly selective custom reduction products for hydrogenation of CO₂-derived urea derivatives or carbamates

Chemical Science, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

Selectively customizing hydrogenation products of urea derivatives or carbamates without external acid/base additives remains unrealized. Herein, we report a promising route to selectively obtain formamides, methanol, methylamines.

Язык: Английский