Understanding the role of Al/Zr ratio in Zr-Al-Beta zeolite: Towards the one-pot production of GVL from glucose

Author(s):  
Marta Paniagua ◽  
Gabriel Morales ◽  
Juan A. Melero ◽  
Jose Iglesias ◽  
Clara López-Aguado ◽  
...  
Keyword(s):  
One Pot ◽  
Small ◽  
2014 ◽  
Vol 10 (9) ◽  
pp. 1771-1778 ◽  
Author(s):  
Shengrong Ye ◽  
Aaron R. Rathmell ◽  
Yoon-Cheol Ha ◽  
Adria R. Wilson ◽  
Benjamin J. Wiley

2010 ◽  
Vol 8 (2) ◽  
pp. 320-325 ◽  
Author(s):  
Santosh Katkar ◽  
Pravinkumar Mohite ◽  
Lakshman Gadekar ◽  
Balasaheb Arbad ◽  
Machhindra Lande

AbstractA rapid and an efficient one-pot method for the synthesis of quinoxalines catalysed by ZnO-beta zeolite at room temperature is described. This environmentally benign method provides several advantages over methods that are currently employed such as a simple work-up, mild reaction conditions, good to excellent yields, and a process to recover and reuse the catalyst for several cycles with consistent activity.


2016 ◽  
Vol 6 (12) ◽  
pp. 4283-4293 ◽  
Author(s):  
Yufeng Ren ◽  
Bo Yang ◽  
Xiali Liao

The one-pot three-component synthesis of 2-amino-4H-chromenes was accomplished by supramolecular catalysis with well-designed amino-appended β-cyclodextrins (ACDs) in water, while the key role of amino side chains in chemoselectivity was determined for the first time.


Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 280
Author(s):  
Thomas Brossier ◽  
Gael Volpi ◽  
Vincent Lapinte ◽  
Sebastien Blanquer

Semi-crystalline poly(trimethylene carbonate) (PTMC) can be efficiently prepared by ring-opening polymerization (ROP) initiated by amine using various catalysts. More promising results were reached with the one-step process of stannous octanoate unlike the two-step one-pot reaction using TBD and MSA catalysts. The ROP-amine of TMC consists in a simple isocyanate free process to produce polycarbonate-urethanes, compatible with the large availability of amines ranging from mono- to multifunctional until natural amino acids. ROP-amine of TMC leads to urethane bonds monitored by FTIR spectroscopy. The relationship between the nature of amines and the crystallinity of PTMC was discussed through X-ray diffraction and thermal studies by DSC and TGA. The impact of the crystallinity was also demonstrated on the mechanical properties of semi-crystalline PTMC in comparison to amorphous PTMC, synthesized by ROP initiated by alcohol. The semi-crystalline PTMC synthesized by ROP-amine opens many perspectives.


2010 ◽  
Vol 3 (4) ◽  
pp. 287-292 ◽  
Author(s):  
Santosh S. Katkar ◽  
Pravinkumar H. Mohite ◽  
Lakshman S. Gadekar ◽  
Balasaheb R. Arbad ◽  
Machhindra K. Lande

2004 ◽  
pp. 1292-1293 ◽  
Author(s):  
Flori Iosif ◽  
Simona Coman ◽  
Vasile Pârvulescu ◽  
Paul Grange ◽  
Stéphanie Delsarte ◽  
...  

2010 ◽  
Vol 380 (1-2) ◽  
pp. 113-117 ◽  
Author(s):  
Alexandre B. Gaspar ◽  
Flavia G. Barbosa ◽  
Sonia Letichevsky ◽  
Lucia G. Appel
Keyword(s):  
One Pot ◽  

2016 ◽  
Vol 18 (21) ◽  
pp. 5777-5781 ◽  
Author(s):  
Blanca Hernández ◽  
Jose Iglesias ◽  
Gabriel Morales ◽  
Marta Paniagua ◽  
Clara López-Aguado ◽  
...  

Bifunctional Brønsted–Lewis, Zr- and Al-containing beta zeolite catalysts prepared by a post-synthetic methodology promote the one-pot production of γ-valerolactone (GVL) from xylose in alcohol media through a cascade process.


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