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A green method for the synthesis of thiochromene derivatives in ionic liquids
Author(s) -
Wang XiangShan,
Wu JianRong,
Zhou Jie,
Zhang MeiMei
Publication year - 2011
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.688
Subject(s) - malononitrile , chemistry , ionic liquid , aldehyde , organic chemistry , reaction conditions , environmentally friendly , catalysis , ecology , biology
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 6 H ‐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).