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A basic ionic liquid catalyzed reaction of benzothiazole, aldehydes, and 5,5‐dimethyl‐1,3‐cyclohexanedione: Efficient synthesis of tetrahydrobenzo[ b ]pyrans
Author(s) -
Wen LiRong,
Xie HuaiYuan,
Li Ming
Publication year - 2009
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.183
Subject(s) - ionic liquid , chemistry , benzothiazole , catalysis , pyran , organic chemistry , process (computing) , combinatorial chemistry , computer science , operating system
A fast, mild, and quantitative procedure for the preparation of tetrahydrobenzo[ b ]pyran derivatives in the presence of an easily accessible basic ionic liquid—[bmIm]OH(3‐butyl‐1‐methylimidazoliumhydroxide) as the catalyst has been developed. The ionic liquid was stable during the reaction process and could also be reused at least nine times with consistent activity. This procedure may be a practical alternative to the existing procedures to meet the need of academe as well as industries. J. Heterocyclic Chem., (2009).