Dehydration of Carbohydrates to 5-Hydroxymethylfurfural over Lignosulfonate-Based Acidic Resin

2018 ◽  
Vol 6 (4) ◽  
pp. 5645-5652 ◽  
Author(s):  
Hao Tang ◽  
Ning Li ◽  
Guangyi Li ◽  
Wentao Wang ◽  
Aiqin Wang ◽  
...  
Keyword(s):  
Acidic Resin

Highly efficient synthesis of 5-hydroxymethylfurfural with carbohydrates over renewable cyclopentanone-based acidic resin

2017 ◽  
Vol 19 (8) ◽  
pp. 1855-1860 ◽  
Author(s):  
Hao Tang ◽  
Ning Li ◽  
Fang Chen ◽  
Guangyi Li ◽  
Aiqin Wang ◽  
...  
Keyword(s):  
Reusable Catalyst ◽  
Efficient Synthesis ◽  
Highly Efficient ◽  
Acidic Resin

A sulfated cyclopentanone-formaldehyde condensate was found to be an effective and reusable catalyst for the dehydration of fructose to 5-hydroxymethylfurfural (HMF).

scholarly journals New 1,3,5-Triazine Derivatives Incorporating Aminobenzenesulfonamide, Aminoalcohol, Piperazine, Chalcone or Stilbene Structural Motifs and Evaluation of Their Antioxidative Activity

Proceedings ◽  
2019 ◽  
Vol 41 (1) ◽  
pp. 17
Author(s):  
Eva Havránková ◽  
Nikola Čalkovská ◽  
Tereza Padrtová ◽  
Jozef Csöllei ◽  
Radka Opatřilová ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Ascorbic Acid ◽  
Antioxidative Activity ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Scavenging Activity ◽  
Inhibition Activity ◽  
Structural Motifs ◽  
Triazine Derivatives ◽  
Acidic Resin

A series of 1,3,5-triazine derivatives, incorporating aminobenzenesulfonamide, aminoalcohol/phenol, piperazine, chalcone, or stilbene structural motifs, were evaluated as potential antioxidants. The compounds were prepared by using step by step nucleophilic substitution of chlorine atoms in starting 2,4,6-trichloro-1,3,5-triazine. Reactions were catalyzed by Cu(I)-supported on a weakly acidic resin. The radical scavenging activity was determined in terms of %inhibition activity and IC50, using the ABTS method. Trolox and ascorbic acid (ASA) were used as standards. In the lowest used concentration 1 × 10−4 M, the %inhibition activity at time 0 min was comparable with both standards at least for 10 compounds. After 60 min compounds 1, 2, 9 and 25 showed nearly twice %inhibition (73.44–87.09%) in comparison with standards (Trolox = 41.49%; ASA = 31.07%). Values of IC50 correlated with %inhibition activity. For compounds 1, 2, 9 and 25 values of IC50 in time 60 min (17.16–27.78 μM) were 5 times lower than IC50 of both standards (Trolox = 178.33 μM; ASA = 147.47 μM). Based on these results, the presented 1,3,5-triazine derivatives and their analogs have a high potential in the treatment of illnesses caused or related to oxidative stress.

scholarly journals Acidic resin-catalysed conversion of fructose into furan derivatives in low boiling point solvents

2011 ◽  
Vol 346 (13) ◽  
pp. 2016-2018 ◽  
Author(s):  
Hong Zhu ◽  
Quan Cao ◽  
Chunhu Li ◽  
Xindong Mu
Keyword(s):  
Boiling Point ◽  
Furan Derivatives ◽  
Acidic Resin

ChemInform Abstract: Paal-Knorr Pyrrole Synthesis Using Recyclable Amberlite IR 120 Acidic Resin: A Green Approach.

ChemInform ◽  
2012 ◽  
Vol 43 (38) ◽  
pp. no-no
Author(s):  
Aarti Devi ◽  
Shallu Shallu ◽  
M. L. Sharma ◽  
Jasvinder Singh
Keyword(s):  
Green Approach ◽  
Acidic Resin

Lignosulfonate-based acidic resin for the synthesis of renewable diesel and jet fuel range alkanes with 2-methylfuran and furfural

2015 ◽  
Vol 17 (6) ◽  
pp. 3644-3652 ◽  
Author(s):  
Shanshan Li ◽  
Ning Li ◽  
Guangyi Li ◽  
Lin Li ◽  
Aiqin Wang ◽  
...  
Keyword(s):  
Jet Fuel ◽  
Renewable Diesel ◽  
Acidic Resin

Lignosulfonate-based acidic resins were reported as promising catalysts for the hydroxyalkylation/alkylation (HAA) of 2-methylfuran and furfural from lignocellulose.

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