کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
42932 | 45947 | 2009 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis, characterization and catalytic performance of Sn-MCM-48 in solvent-free Mukaiyama-type aldol condensation reactions Synthesis, characterization and catalytic performance of Sn-MCM-48 in solvent-free Mukaiyama-type aldol condensation reactions](/preview/png/42932.png)
The influence of various synthesis variables on the physico-chemical properties of mesoporous stannosilicate molecular sieves with MCM-48 structure (Sn-MCM-48) has been investigated. Sn-MCM-48 has been used as a new heterogeneous catalyst in solvent-free Mukaiyama-type aldol reactions. Invariably, the β-hydroxy ester selectivity was found to be 100% irrespective of the conversion level. The product yield was found to increase, to reach a maximum (70%), and then to decrease with the increase in tin content.
Synthesis variables such as synthesis time, molar SiO2/SnO2 ratios in the starting gel composition, silica source and tin sources affect the physico-chemical properties of mesoporous stannosilicate molecular sieves with MCM-48 structure (Sn-MCM-48). For the first time, Sn-MCM-48 has been used as a new heterogeneous catalyst in solvent-free Mukaiyama-type aldol reaction.Figure optionsDownload as PowerPoint slide
Journal: Applied Catalysis A: General - Volume 358, Issue 1, 30 April 2009, Pages 88–94