Resumo

LIU, Yang; RONG, Qi; CHEN, Chen  e  LIN, Hu Yu. Novel and Reusable Mesoporous Silica Supported 4-Methylbenzenesul- fonate-functionalized Ionic Liquids for Room Temperature Highly Efficient Preparation of 2,4,5-Triaryl-1H-imidazoles. J. Mex. Chem. Soc [online]. 2021, vol.65, n.4, pp.535-549.  Epub 28-Fev-2022. ISSN 1870-249X.  https://doi.org/10.29356/jmcs.v65i4.1529.

A series of mesoporous materials supported ionic liquids were prepared and tested as effective and practical catalysts for the synthesis of 2,4,5-triaryl-1H-imidazoles. The effects of type of catalysts, catalyst amount, and catalyst stability have also been investigated in detail, the catalyst Ti-SBA-15@ILTsO exhibited excellent activity in excellent yields of 92 % ~ 99 % with low catalyst amount at room temperature within 1 h. In addition, the supported ionic liquid can be easily recovered and reused for six times with satisfactory catalytic activity. Furthermore, a general synergetic catalytic mechanism for the reaction was proposed. Maybe this work employing Ti-SBA-15@ILTsO as highly efficient and stable catalyst for the synthesis of 2,4,5-triaryl-1H-imidazoles has potential commercial applications.

Palavras-chave : Mesoporous silica; supported ionic liquid; high efficient; 2,4,5-triaryl-1H-imidazoles; synergetic and recyclable catalyst.

        · resumo em Espanhol     · texto em Inglês     · Inglês ( pdf )