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Wipark Anutrasakda. Synthesis of mesoporous silica with site-isolated acid and base - based catalysts and their bifunctional application in a one-pot cascade reaction. (). King Mongkut's University of Technology North Bangkok. Central Library. : , 2018.
Synthesis of mesoporous silica with site-isolated acid and base - based catalysts and their bifunctional application in a one-pot cascade reaction
Name: Apichat Klayanon
Organization :
Chulalongkorn University. Faculty of Science
Name: Wipark Anutrasakda
Organization :
Chulalongkorn University. Faculty of Science
Email :
wipark.a@chula.ac.th
keyword:
Mesoporous Silica
LCSH:
Acid-base chemistry
Abstract:
In this work, mesoporous silica supported acid (-SO3H)-base (-NH2) catalysts were
synthesized using a combination of co-condensation and post-synthetic grafting methods. The
prepared acid-base catalysts were characterized by XRD, FT-IR, and N2 adsorptiondesorption
techniques. XRD and N2 adsorption-desorption indicated that the synthesized
mesoporous silica supported acid-base catalysts preserved the hexagonal structure with the
surface area in the range of 609-691 m2g-1. The S=O and N-H stretching frequencies, as
indicated by FT-IR, occurred at 1,032 and 1,536 cm-1, respectively. The acid and base
concentrations of the catalysts, examined by back titration method, were in the range of 0.89-
1.10 mmol g-1 and 0.38-0.57 mmol g-1, respectively. The synthesized catalysts were tested for
a one-pot deacetylation-aldol reaction of benzaldehydedimethylacetal (A) with malononitrile
to produce benzylidenemalononitrile (C). Under the 5 h reaction time at 90 C, the reaction
gave a 71% yield of benzylidenemalononitrile as the sole product, suggesting that the
synthesized materials are ones of efficient catalysts for one-pot cascade reactions requiring
both acid and base active species.
King Mongkut's University of Technology North Bangkok. Central Library
Address:
BANGKOK
Email:
library@kmutnb.ac.th
Created:
2018
Modified:
2562-07-10
Issued:
2019-07-10
บทความ/Article
application/pdf
BibliograpyCitation :
In Prince of Songkla University Faculty of Science. Pure and Applied Chemistry International Conference (PACCON 2018) (p.MN369-MN374). Songkla : Prince of Songkla University
eng
©copyrights King Mongkut's University of Technology North Bangkok
RightsAccess:
ใช้เวลา
0.024934 วินาที
Apichat Klayanon
| Title | Contributor | Type |
|---|---|---|
| Synthesis of mesoporous silica with site-isolated acid and base - based catalysts and their bifunctional application in a one-pot cascade reaction
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Apichat Klayanon;Wipark Anutrasakda | บทความ/Article | |
| Synthesis of bi- and trifunctional mesoporous silica-based catalyst and application in one-pot cascade reactions
จุฬาลงกรณ์มหาวิทยาลัย Apichat Klayanon | Wipark Anutrasakda | วิทยานิพนธ์/Thesis |
Wipark Anutrasakda
| Title | Contributor | Type |
|---|---|---|
| Synthesis of mesoporous silica with site-isolated acid and base - based catalysts and their bifunctional application in a one-pot cascade reaction
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Apichat Klayanon;Wipark Anutrasakda | บทความ/Article | |
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