scholarly journals Microalgae lipids as a feedstock for the production of benzene

2018 ◽  
Vol 20 (8) ◽  
pp. 1874-1878 ◽  
Author(s):  
Dennis Pingen ◽  
Julia Zimmerer ◽  
Nele Klinkenberg ◽  
Stefan Mecking

A two-step one-pot synthesis of benzene from the five-fold unsaturated fatty acid eicosapentaenoic acid (EPA), a component of microalgae oils, is presented. Simultaneously to the dehydrogenation, hydrogenation of the by-products to the desirable sebacic acid and octanoic acid is performed.

1996 ◽  
Vol 62 (3) ◽  
pp. 372-379 ◽  
Author(s):  
Hirofumi Furuita ◽  
Toshio Takeuchi ◽  
Takeshi Watanabe ◽  
Hiroshi Fujimoto ◽  
Sachio Sekiya ◽  
...  

2019 ◽  
Vol 6 (1) ◽  
pp. 20-27
Author(s):  
Bipasa Halder ◽  
Himadri S. Maity ◽  
Ahindra Nag

Background: The conception of ‘Green chemistry’ is the much inventive chemistry which is potent and more environmentally benign. It is notable that many organic reactions take place in conventional organic solvents, known as volatile organic compounds. Being concerned about the environmental impact, we report a promoting medium, coconut juice (ACC) for one-pot synthesis of biscoumarins and pyranocoumarins which is safe, harmless, green and environmentally benign. Methods and Results: Substituted biscoumarins have been achieved by the reaction of biscoumarin and substituted aromatic aldehydes in presence of ACC which acts as a green catalyst cum solvent. Each reaction showed good to excellent yield in presence of both electron donating as well as electron withdrawing group on aromatic aldehyde without formation of any by-products. Similarly, pyranocoumarins have been achieved by the reaction of biscoumarin, substituted aromatic aldehydes, active methylene nitrile in presence of ACC. All the reactions proceed smoothly and gave higher yields in case of malononitrile in comparison of ethyl-2-cyanoacetate. Conclusion: A simple, eco-friendly and novel procedure was demonstrated for the synthesis of biscoumarins and pyranocoumarins using natural feedstock coconut juice. The major importance of using ACC juice is higher yields, no work-up and no column chromatography.


RSC Advances ◽  
2015 ◽  
Vol 5 (51) ◽  
pp. 40997-41005 ◽  
Author(s):  
T. Vijai Kumar Reddy ◽  
G. Sandhya Rani ◽  
R. B. N. Prasad ◽  
B. L. A. Prabhavathi Devi

Solvent free one-pot synthesis of isomannide-based fatty acid monoesters as non-ionic bio-surfactants employing a green recyclable SO3H-carbon catalyst was demonstrated.


2020 ◽  
Vol 5 (9) ◽  
pp. 1791-1797
Author(s):  
Oleg A. Kazantsev ◽  
Ildar R. Arifullin ◽  
Maria V. Savinova ◽  
Alexey P. Sivokhin ◽  
Yevgeniya A. Bol'shakova ◽  
...  

N-(Dibutylaminomethyl)methacrylamide can be easily obtained via a two-stage one-pot Mannich reaction under mild conditions. By-products are practically absent and the monomer can be easily isolated from the reaction mixture with a 96% yield.


2014 ◽  
Vol 24 (24) ◽  
pp. 5635-5638 ◽  
Author(s):  
Hugo Tremblay ◽  
Catherine St-Georges ◽  
Marc-André Legault ◽  
Caroline Morin ◽  
Samuel Fortin ◽  
...  

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