One-Pot Process of Anthraquinone Synthesis in the Presence of Mo-V-P Heteropoly Acid Solutions as a Bifunctional Catalysts

• 作者: Elena Zhizhina Leonid Gogin
• 来源期刊: 催化剂现代研究(英文)
• 学科: 化学
• 关键词: 9 10-Anthraquinone Mo-V-P HETEROPOLY Acids DIENE SYNTHESIS Organic Solvents
• 年，卷（期）: 2013,（3）
• 页码范围: 90-92
• 页数: 3页
• 分类号: O6

摘要

Acid-catalytic 1,3-butadiene condensation with para-quinones followed by the obtained product oxidation may be performed in one stage as one-pot process, if assisted by the aqueous solutions of Mo-V-P heteropoly acids with a composition of HaPzMoyVxOb. 1,4-naphthoquinone condensation with 1,3-butadiene in the HPA solutions with no organic solvents yields 9,10-anthraquinone (AQ) mixed with tetrahydro-AQ (THA) and dihydro-AQ (DHA). However, AQ yield and its purity may be considerably improved by using water-mixable organic solvents, e.g., acetone, 1,4-dioxane, as well as high vanadium content HPA such as H15P4Mo18V7O89 and H17P3Mo16V10O89. Process optimization provides 70% yield of reaction product containing no less than 90% AQ.