Abstract
AbstractDescribed herein presents a kind of multisite hybrid ionic liquid‐catalysts and establishes a novel strategy for H2S utilization, which has been characterized by multiaspects to reveal internal structural characterization. Through chemical modification, the D101‐based hybrid ILs were used for the direct synthesis of thioamides from the addition of H2S and nitriles. D101‐[PMDETA][DMG] can achieve an impressive activity of quantitative conversion for benzonitrile. Reaction kinetics, adsorption thermodynamics, substrate universality, and catalyst cycling experiments have been systematically studied. A first‐order kinetic model was constructed and studied experimentally for the reaction of nitriles with H2S to produce thioamides. The internal mechanism was proposed through experiments and confirmed by DFT‐based theoretical calculations. Moreover, D101‐based hybrid ILs can be easily recovered, thus completing the cyclic process of thioamide multiplication. This work not only offers an effective method for the construction of organic‐inorganic hybrid materials but also provides a novel insight into efficient H2S conversion.
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