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An Efficient Synthesis of 4 H ‐Benzo[ g ]chromene‐5,10‐dione De‐ rivatives through Triethylbenzylammonium Chloride Catalyzed Multicomponent Reaction under Solvent‐free Conditions
Author(s) -
Yao Changsheng,
Yu Chenxia,
Li Tuanjie,
Tu Shujiang
Publication year - 2009
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200990334
Subject(s) - chemistry , malononitrile , yield (engineering) , catalysis , aldehyde , chloride , solvent , organic chemistry , aryl , medicinal chemistry , combinatorial chemistry , materials science , alkyl , metallurgy
A series of 4‐aryl‐5,10‐dihydro‐4 H ‐benzo[ g ]chromene‐5,10‐dione derivatives were synthesized by a three‐component reaction with aromatic aldehyde, 2‐hydroxy‐1,4‐dihydronaphthalene‐1,4‐dione, and malononitrile catalyzed by triethylbenzylammonium chloride under solvent‐free conditions. The novel efficient method has the advantages of environmental friendliness, high yield, simple work‐up and ease of operation.