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A green method for the synthesis of thiochromene derivatives in ionic liquids

Authors

  • Xiang-Shan Wang,

    Corresponding author
    1. School of Chemistry and Chemical Engineering, The Key Laboratory of Biotechnology on Medical Plant, Xuzhou Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
    • School of Chemistry and Chemical Engineering, The Key Laboratory of Biotechnology on Medical Plant, Xuzhou Normal University, Xuzhou, Jiangsu 221116, People's Republic of China

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  • Jian-Rong Wu,

    1. School of Chemistry and Chemical Engineering, The Key Laboratory of Biotechnology on Medical Plant, Xuzhou Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
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  • Jie Zhou,

    1. School of Chemistry and Chemical Engineering, The Key Laboratory of Biotechnology on Medical Plant, Xuzhou Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
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  • Mei-Mei Zhang

    1. School of Chemistry and Chemical Engineering, The Key Laboratory of Biotechnology on Medical Plant, Xuzhou Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
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Abstract

Controlling the pH value by changing the negative ion of ionic liquids, the same reactions of aromatic aldehyde, 2-(2,3-dihydrothiochromen-4-ylidene) malononitrile and malononitrile product unaromatized and aromatized 6H-benzo[c]thiochromene derivatives in high yields. The nice features of these procedures include mild reactions condition, simple operations, high yields, and environmentally benign. J. Heterocyclic Chem., (2011).

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