Chemical Research in Chinese Universities ›› 2024, Vol. 40 ›› Issue (6): 1127-1133.doi: 10.1007/s40242-024-4033-5

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Protonated Mesoporous Aluminosilica Nanospheres Boosting Aza-Michael Cyclization and Diels-Alder Reaction

LI Baoyan1, MENG Jingjing1, LI Yingding1, JIANG Lingxia2, CHENG Tanyu1, LIU Guohua1   

  1. 1. The Education Ministry Key Lab of Resource Chemistry, Joint International Research Laboratory of Resource Chemistry, Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, P. R. China;
    2. Lianhe Chemical Technology Co., Ltd., Yancheng 224631, P. R. China
  • Received:2024-02-20 Online:2024-12-01 Published:2024-10-26
  • Contact: CHENG Tanyu,tycheng@shnu.edu.cn;LIU Guohua,ghliu@shnu.edu.cn E-mail:tycheng@shnu.edu.cn;ghliu@shnu.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (No. 21872095), the “111” Innovation and Talent Recruitment Base on Photochemical and Energy Materials, China (No. D18020), and the Project of Shanghai Engineering Research Center of Green Energy Chemical Engineering, China (No. 18DZ2254200).

Abstract: Mesoporous aluminosilica hollow nanospheres were prepared easily, which possess very strong acid site. The heterogeneous catalyst can be utilized in both intramolecular aza-Michael addition cyclization and intermolecular Diels-Alder reaction. The catalyst could be easily recovered and reused. Furthermore, the catalyst could be used in continuous flow chemistry for the uninterrupted synthesis of 2,3-dihydroquinolin-4(1H)-ones, which disclosed the potential application of the present solid catalyst in both academic and industrial syntheses. In addition, the catalyst could be recovered and reused at least 7 times without obvious loss of activity.

Key words: Heterogeneous catalyst, Aluminosilica nanosphere, Mesoporous, Aza-Michael cyclization, Diels-Alder reaction