Applied Catalysis A: General p. 110 - 116 (2019)
Update date:2022-07-29
Topics:
Sun, Weng-Jie
Gao, En-Qing
Metal-organic frameworks with regular pore structures provide powerful platforms for the design of single-site metal catalysts for chemical transformation. In this paper, we develop a facile, stable and recyclable MOF-supported Cu(II) catalyst, MIL-101-SO3Cu. It shows extremely high activity for the A3 coupling of alkynes, aldehydes and amines. The turnover frequency can reach 6.8 × 105 h?1 under neat conditions, which is the highest so far reported for the reaction. The high activity is because the specific structure of the MIL-101-SO3 support enables a single-site dispersion and an unhindered open environment for the metal ion. MIL-101-SO3Cu also exhibits high activity for the one-pot cascade reactions combining A3 coupling and 5-endo-dig cyclization.
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