Synthesis of 2-Aminochromene Derivatives Catalyzed by KF/Al2O3

A series of 2-aminochromene derivatives include 2-aminobenzo-[h]chromene and naphtha[1,2-b;6,5-b′]dipyrans derivatives were synthesized from arylaldehyde, malononitrile or ethyl cyanoacetate with 1-naphthol or 1,5-naphthalenediol in refluxing ethyl alcohol catalyzed by KF-Al 2 O 3 . The structure of...

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Bibliographic Details
Published in:Synthetic communications 2004-12, Vol.34 (3), p.509-514
Main Authors: Wang, Xiang-shan, Shi, Da-qing, Yu, Hui-zhen, Wang, Gao-feng, Tu, Shu-jiang
Format: Article
Language:English
Subjects:
2-Aminochromene
Naphtho[1,2-b
6,5-b′]dipyrans
Synthesis
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Summary:A series of 2-aminochromene derivatives include 2-aminobenzo-[h]chromene and naphtha[1,2-b;6,5-b′]dipyrans derivatives were synthesized from arylaldehyde, malononitrile or ethyl cyanoacetate with 1-naphthol or 1,5-naphthalenediol in refluxing ethyl alcohol catalyzed by KF-Al 2 O 3 . The structure of the products was confirmed by X-ray analysis.
ISSN:0039-7911
1532-2432
DOI:10.1081/SCC-120027291