Microporous and Mesoporous Materials
Microporous and Mesoporous Materials
5 years ago

Synthesis of L-serine modified benzene bridged periodic mesoporous organosilica and its catalytic performance towards aldol condensations

Synthesis of L-serine modified benzene bridged periodic mesoporous organosilica and its catalytic performance towards aldol condensations
Periodic mesoporous organosilica materials (PMOs) offer unique possibilities towards catalysis due to their high stability and tunable organic bridges. Moreover, the presence of the organic bridges make them, in comparison with the traditional silica materials, much more robust in an aqueous environment. As a result, these materials can be applied as catalysts for the valorization of biomass-based resources which are, typically, performed in the presence of water. In this work, we post-synthetically modified benzene bridged PMO with L-serine, thus obtaining a bifunctional PMO bearing a primary amine with an alcohol group on the β-carbon. The promoting effect of the alcohol, in combination with the amine as a base catalyst, is beneficial in the aldol condensation of acetone and 4-nitrobenzaldehyde. Thorough characterization, including a solid state NMR study, of the L-serine modified PMO was performed as well as a successful catalytic test in an aqueous environment. We obtained a TOF value of 1.61 × 10−4 ± 0.08 × 10−4 s−1 and a high selectivity towards the aldol product.

Publisher URL: www.sciencedirect.com/science

DOI: S138718111730361X

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.