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Letters in Organic Chemistry

Author(s): Yu Wan, Wan-wan Liu, Qi-chen Zhan, Hao Cui, Qian Zhang, Shu-ning Yue, Wei Lin, Sheng-liang Zhou and Hui Wu

DOI: 10.2174/1570178612666150709170402

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Synthesis and Luminescence of 4H-Benzo[b]pyran Derivatives Catalyzed by Silica Sulfuric Acid in Aqueous Media

Page: [538 - 543] Pages: 6

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Abstract

Silica sulfuric acid (SSA) was used as efficient catalyst for the synthesis of 4Hbenzo[ b]pyran derivatives via the one-pot three-component condensation of aromatic aldehyde (1), 5,5-dimethyl-1,3-cyclohexanedione (2a) or 1,3-cyclohexandione (2b) and malononitrile (3) in aqueous media with high yields. The luminescence of products was studied in detail.

Keywords: 4H-Benzo[b]pyran Derivatives, Synthesis, Luminescence.

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