an efficient synthesis of tetrahydrobenzo[b]pyran derivatives using sulfonic acid functionalized silica as an efficient catalyst
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2011
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Abstract
Tetrahydrobenzo[b]pyran derivatives were efficiently synthesized by the reaction of appropriated aromatic aldehydes, malononitrile and dimedone in the presence of SiO2-Pr-SO3H as a nanoporous and recoverable solid acid catalyst, in good to excellent yields. Single crystal x-ray analysis conclusively confirmed the structure of the 2-amino-3-cyano-7,7-dimethyl-4-(4-methylphenyl)-5-oxo-4H-5,6,7,8-tetrahydro-benzopyran.
| Reference Key |
ziarani2011e-journalan
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|---|---|
| Authors | ;Ghodsi Mohammadi Ziarani;Alireza Abbasi;Alireza Badiei;Zeinab Aslani |
| Journal | Journal of pharmaceutical and biomedical analysis |
| Year | 2011 |
| DOI |
10.1155/2011/367613
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| URL | |
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