催化学报

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具有磁性回收性能的钴纳米颗粒催化剂用于高选择性高性能环氧化合物羰基化制备β-内酯

Jianwei Jianga, Minji Kanga, Jeongcheol Shinb, Kiyoung Parkc, Sungho Yoona,*   

  1. aDepartment of Chemistry, Chung‐Ang University, Dongjak‐gu, Seoul 06974, Republic of Korea;
    bDepartment of Chemistry, Duksung Women’s University, Dobong‐gu, Seoul 01369, Republic of Korea;
    cDepartment of Chemistry, Korea Advanced Institute of Science and Technology, Yuseong‐gu, Daejeon 34141, Republic of Korea
  • 收稿日期:2025-10-21 接受日期:2026-02-01
  • 通讯作者: *电子信箱: sunghoyoon@cau.ac.kr (S. Yoon).

Cobalt nanoparticle catalyst with magnetic recoverability for high-performance epoxide carbonylation to β-lactones with high selectivity

Jianwei Jianga, Minji Kanga, Jeongcheol Shinb, Kiyoung Parkc, Sungho Yoona,*   

  1. aDepartment of Chemistry, Chung‐Ang University, Dongjak‐gu, Seoul 06974, Republic of Korea;
    bDepartment of Chemistry, Duksung Women’s University, Dobong‐gu, Seoul 01369, Republic of Korea;
    cDepartment of Chemistry, Korea Advanced Institute of Science and Technology, Yuseong‐gu, Daejeon 34141, Republic of Korea
  • Received:2025-10-21 Accepted:2026-02-01
  • Contact: *E-mail: sunghoyoon@cau.ac.kr (S. Yoon).

摘要: 环氧化物羰基化制备β-内酯是可持续化学生产的一条有吸引力的途径, 但受限于[Co(CO)4]的稳定性导致当前催化剂活性较低. 本文报道了一种负载在碳上的钴纳米粒子催化剂(Co-NPs-C), 该催化剂与[(TPP)CrCl]结合表现出较好的催化性能, 转化数和生产效率分别达到了230000和11000 mol/(mol-Cr·h). 量子力学研究结果表明, 钴纳米粒子原位生成[Co(CO)4], 并与路易斯酸协同活化确保高的β-内酯选择性. 该催化剂可回收, 可放大制备至>200克, 为工业β-内酯合成提供了一个实用的平台, 并展示了基于纳米粒子钴催化的应用前景.

关键词: 环氧化物羰基化制备β-内酯, [Lewis acid]+[Co(CO)4]-, [Co(CO)4]-稳定性, 钴纳米粒子, 高活性催化剂

Abstract: The carbonylation of epoxides to β-lactones is an attractive route for sustainable chemical production but remains constrained by the instability of [Co(CO)₄]- and the limited activity of current catalysts. We report a cobalt nanoparticle catalyst supported on carbon (Co NPs-C) that, with [(TPP)CrCl], delivers unprecedented performance, achieving a turnover number (TON) of 230000 and a productivity of 11000 mol/(mol-Cr·h). Mechanistic studies reveal in-situ generation of [Co(CO)₄]- from Co NPs, with synergistic Lewis acid activation ensuring high β-lactone selectivity. The catalyst is recyclable and scalable to > 200 g, offering a practical platform for industrial β-lactone synthesis and highlighting the promise of nanoparticle-based cobalt catalysis.

Key words: Carbonylation of epoxide to β-lactone, [Lewis acid]+[Co(CO)4]-, [Co(CO)4]- stability, Cobalt nanoparticles, Highly active catalyst