Alginic acid: A mild and renewable bifunctional heterogeneous biopolymeric organocatalyst for efficient and facile synthesis of polyhydroquinolines.

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ID: 74069
2018
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Ranked #11 of 200 articles by views in International journal of biological macromolecules

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Abstract
Alginic acid, a widely used naturally occurring carbohydrate which is generally derived from brown seaweeds, can be considered as a bifunctional heterogeneous and green biopolymeric organocatalyst. Alginic acid, without any post-modification with active Bronsted or Lewis acid centers, was found to be a highly active, cost-effective, commercially-available, renewable and recoverable heterogeneous biopolymeric organocatalyst for the expeditious synthesis of polyhydroquinolines (PHQs). Polyhydroquinolines were synthesized from the four-component Hantzsch reaction of ethyl acetoacetate, different aldehydes, ammonium acetate and cyclic 1,3-diones under mild conditions in high to quantitative yields, 75-97%, using alginic acid. Furthermore, alginic acid was found to be reusable for at least 6 consecutive cycles without considerable loss of its catalytic activity.
Reference Key
dekamin2018alginicinternational Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Dekamin, Mohammad G;Karimi, Zahra;Latifidoost, Zahra;Ilkhanizadeh, Siamand;Daemi, Hamed;Naimi-Jamal, M Reza;Barikani, Mehdi;
Journal International journal of biological macromolecules
Year 2018
DOI
S0141-8130(17)32145-1
URL
Keywords
green chemistry biopolymer heterocycles organocatalysis alginic acid hantzsch esters polyhydroquinolines (phqs)

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