One-Pot Process of Naphthoquinones Synthesis from Hydroquinone in the Presence of Solutions of Mo-V-P Heteropolyacids as Bifunctional Catalysts
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Modern Research in Catalysis
ISSN: 2168-4480
, E-ISSN: 2168-4499
|
| Output data |
Year: 2019,
Volume: 8,
Pages: 1-9
Pages count
: 9
DOI:
10.4236/mrc.2019.81001
|
| Tags |
Hydroquinone, Naphthoquinones, Heteropolyacid, Diene Synthesis |
| Authors |
Gogin Leonid L.
1
,
Zhizhina Elena G.
1
,
Pai Zinaida P.
1
|
| Affiliations |
| 1 |
Federal Research Center Boreskov Institute of Catalysis, Novosibirsk, Russia
|
|
Funding (1)
|
1
|
Federal Agency for Scientific Organizations
|
0303-2016-0008
|
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.