Chinese Journal of Organic Chemistry >
Highly Selective Dehydrogenation of Primary Amine to Nitrile over Bifunctional Co@NaKETS-10 Catalyst
Received date: 2024-09-22
Revised date: 2024-10-28
Online published: 2024-11-28
Supported by
Key Research and Development Plan of Anhui Province(2024AH051331); Research Start-Up Funds of Chaohu University(KYQD-2023053)
Basic zeolite NaKETS-10 was used as a support for Co metal catalyst in the double dehydrogenation reactions of various benzylamines under mild conditions, leading to the high selective formation of nitriles. The -Ti-O-Ti- chain within NaKETS-10 crystal possesses an electron transport function, resulting in the oxygen atom possessing a high electron density and thus acting as an effective electron donor. Research indicates that the electron-rich oxygen in the NaKETS-10 framework is the adsorption and activation site for benzylamine. This study also reveals that the Co metal site coordinates with the activated benzylamine molecule, working in conjunction with the electron-rich oxygen to facilitate the dehydrogenation process of benzylamine. Furthermore, as a heterogeneous catalyst, the Co@NaKETS-10 demonstrates a remarkable stability and maintains its activity even after being recycled at least five times. Combining the results of parallel experiments and controlled experiments, the elementary reaction steps of benzylamine double dehydrogenation on the Co@NaKETS-10 catalyst were investigated, and a possible mechanism was proposed.
Chaojie Zhu , Lele Wang , Rong Meng , Yongji Wang , Cheng Wang , Xiaodong Wang . Highly Selective Dehydrogenation of Primary Amine to Nitrile over Bifunctional Co@NaKETS-10 Catalyst[J]. Chinese Journal of Organic Chemistry, 2025 , 45(4) : 1268 -1275 . DOI: 10.6023/cjoc202409030
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