Izvorni znanstveni članak

https://doi.org/10.5562/cca3797

Mesoporous KIT-6 Supported Ionic Liquids as New and Highly Effective Heterogeneous Catalysts for Three-component Synthesis of 2-Amino-3-cyano-4H-pyrans

Jing Rui Li ; College of Materials and Chemical Engineering, Key laboratory of inorganic nonmetallic crystalline and energy conversion materials, China Three Gorges University, Yichang 443002, P. R. China
Chen Chen ; College of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, P. R. China
Yu Lin Hu ; College of Materials and Chemical Engineering, Key laboratory of inorganic nonmetallic crystalline and energy conversion materials, China Three Gorges University, Yichang 443002, P. R. China

Sažetak

A series of mesoporous KIT-6 supported ionic liquids were prepared and tested as effective and practical catalysts for the synthesis of 2-amino-3-cyano-4H-pyrans. The effects of type of catalysts, catalyst amount, and catalyst stability have also been investigated in detail, the catalyst KIT-6@ILMoO4 exhibited excellent activity in good to excellent yields of 88 % – 98 %, may be attributed to the synergetic effect between hydroxyl groups of support beta and molybdate from the ionic liquid. In addition, the supported catalyst can be easily recovered and reused for six times still with satisfactory catalytic activity. Furthermore, a general synergetic catalytic mechanism for the reaction was proposed. Maybe this work employing KIT-6@ILMoO4 as highly efficient and stable catalyst for the synthesis of 2-amino-3-cyano-4H-pyrans has potential commercial applications.

This work is licensed under a Creative Commons Attribution 4.0 International License.

Ključne riječi

2-amino-3-cyano-4H-pyrans; heterogeneous catalysis; mesoporous beta zeolite; recyclable catalyst; supported ionic liquid

Hrčak ID:

265020

URI

https://hrcak.srce.hr/265020

Datum izdavanja:

28.6.2021.

Posjeta: 1.221 *