Alkylating activity of polyphosphate ester in the course of the synthesis of benzimidazoles

1985 ◽  
Vol 50 (9) ◽  
pp. 1959-1961 ◽  
Author(s):  
Giovanni Allunni Bistocchi ◽  
Giovanni De Meo ◽  
Mauro Pedini ◽  
Adolfo Ricci ◽  
Pierre Jacquignon
Keyword(s):  
Furoic Acid ◽  
Alkylating Activity

5-Fluoro-2-(5-nitrofuryl)benzimidazole (I) was synthesized from 4-fluoro-1,2-diaminobenzene and 5-nitro-2-furoic acid using ethyl polyphosphate as cyclization reagent. N-Ethyl derivative was isolated as by-product in substantial amount.

Bioacitivities Evaluation and Pharmacokinetics of 5-Hydroxymethyl-2-furoic Acid Derived from the Administration of Liu-Wei-Di-Huang-Wan

Planta Medica ◽  
2008 ◽  
Vol 74 (03) ◽  
Author(s):  
X Wang ◽  
H Sun ◽  
H Lv ◽  
N Zhang ◽  
F Geng ◽  
...  
Keyword(s):  
Furoic Acid

The processing-module assembly strategy for continuous bio-oxidation of furan chemicals by integrated and coupled biotechnology

2021 ◽  
Vol 23 (3) ◽  
pp. 1330-1336
Author(s):  
Genlai Du ◽  
Xia Hua ◽  
Bin Xu ◽  
Huan Wang ◽  
Xin Zhou ◽  
...  
Keyword(s):  
Electrochemical Techniques ◽  
Furoic Acid ◽  
Assembly Strategy ◽  
Processing Module

We designed a technology to combined biotechnology, chemical and electrochemical techniques to achieve furoic acid bio-production from bio-toxic furfural.

scholarly journals Furoic Acid and Derivatives as Atypical Dienes in Diels-Alder Reactions

2021 ◽  
Author(s):  
Razvan Cioc ◽  
Tom Smak ◽  
Marc Crockatt ◽  
Jan Kees Van der Waal ◽  
Pieter C A Bruijnincx
Keyword(s):  
Green Chemistry ◽  
Cycloaddition Reaction ◽  
Building Blocks ◽  
Diels Alder ◽  
Furoic Acid

The furan Diels-Alder (DA) cycloaddition reaction has become an important tool in green chemistry, being central to the sustainable synthesis of many chemical building blocks. The restriction to electron-rich furans...

Production of renewable oleo-furan surfactants by cross-ketonization of biomass-derived furoic acid and fatty acids

2021 ◽  
Vol 11 (8) ◽  
pp. 2762-2769
Author(s):  
Hannah Nguyen ◽  
Yunzhu Wang ◽  
David Moglia ◽  
Jiayi Fu ◽  
Weiqing Zheng ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Furoic Acid

Production of an oleo-furan surfactant precursor from biomass-derived furoic acid and fatty acid via cross-ketonization.

scholarly journals A novel recyclable furoic acid-assisted pretreatment for sugarcane bagasse biorefinery in co-production of xylooligosaccharides and glucose

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Lin Dai ◽  
Tian Huang ◽  
Kankan Jiang ◽  
Xin Zhou ◽  
Yong Xu
Keyword(s):  
Enzymatic Hydrolysis ◽  
Sugarcane Bagasse ◽  
Production Cost ◽  
Solid Loading ◽  
Fed Batch ◽  
Acid Pretreatment ◽  
Furoic Acid ◽  
Cooling Crystallization ◽  
Mineral Acids ◽  
Hydrolysis Of

Abstract Background Pretreatment is the key step for utilizing lignocellulosic biomass, which can extract cellulose from lignin and disrupt its recalcitrant crystalline structure to allow much more effective enzymatic hydrolysis; and organic acids pretreatment with dual benefic for generating xylooligosaccharides and boosting enzymatic hydrolysis has been widely used in adding values to lignocellulose materials. In this work, furoic acid, a novel recyclable organic acid as catalyst, was employed to pretreat sugarcane bagasse to recover the xylooligosaccharides fraction from hemicellulose and boost the subsequent cellulose saccharification. Results The FA-assisted hydrolysis of sugarcane bagasse using 3% furoic acid at 170 °C for 15 min resulted in the highest xylooligosaccharides yield of 45.6%; subsequently, 83.1 g/L of glucose was harvested by a fed-batch operation with a solid loading of 15%. Overall, a total of 120 g of xylooligosaccharides and 335 g glucose could be collected from 1000 g sugarcane bagasse starting from the furoic acid pretreatment. Furthermore, furoic acid can be easily recovered by cooling crystallization. Conclusion This work put forward a novel furoic acid pretreatment method to convert sugarcane bagasse into xylooligosaccharides and glucose, which provides a strategy that the sugar and nutraceutical industries can be used to reduce the production cost. The developed process showed that the yields of xylooligosaccharides and byproducts were controllable by shortening the reaction time; meanwhile, the recyclability of furoic acid also can potentially reduce the pretreatment cost and potentially replace the traditional mineral acids pretreatment.

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