Modern Research in Catalysis

Volume 8, Issue 1 (January 2019)

ISSN Print: 2168-4480   ISSN Online: 2168-4499

Google-based Impact Factor: 1.43  Citations  

One-Pot Process of Naphthoquinones Synthesis from Hydroquinone in the Presence of Solutions of Mo-V-P Heteropolyacids as Bifunctional Catalysts

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DOI: 10.4236/mrc.2019.81001    224 Downloads   426 Views  

ABSTRACT

1,4-Naphthoquinones (NQ) is a class of organic compounds with a number of important properties. However, the existing methods of their synthesis either give a low NQ yield or multistage and require a lot of time. In the present work new one-pot process of NQ synthesis from hydroquinone (HQ) and substituted 1,3-dienes at room temperature is proposed. The solution of heteropolyacid H7PMo8V4O40 (HPA-4) is used as a bifunctional (acid and redox) catalyst for this process. The influence of a number of factors on key process parameters has been studied. It is demonstrated that unsubstituted and a number of alkyl substituted NQ with the yields of 50% - 80% and purity of 92% - 99% can be obtained by this method. The results obtained allow to significantly simplify the synthesis of NQ directly from HQ in comparison with the described similar methods.

Cite this paper

Gogin, L. , Zhizhina, E. and Pai, Z. (2019) One-Pot Process of Naphthoquinones Synthesis from Hydroquinone in the Presence of Solutions of Mo-V-P Heteropolyacids as Bifunctional Catalysts. Modern Research in Catalysis, 8, 1-9. doi: 10.4236/mrc.2019.81001.

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