Efficient synthesis of benzo[g]- and benzo[h]chromene derivatives by one-pot three-component condensation of aromatic aldehydes with active methylene compounds and naphthols
A convenient procedure is reported for the synthesis of benzo[g]- and benzo[h]chromene derivatives via one-pot three-component condensation of aromatic aldehydes with malononitrile or ethyl cyanoacetate and 1- or 2-naphthol in the presence of 10 mol % of titanium tetrachloride as catalyst. The react...
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Published in | Russian journal of organic chemistry Vol. 42; no. 12; pp. 1813 - 1815 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
NEW YORK
Springer Nature
01.12.2006
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Subjects | |
Online Access | Get full text |
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Summary: | A convenient procedure is reported for the synthesis of benzo[g]- and benzo[h]chromene derivatives via one-pot three-component condensation of aromatic aldehydes with malononitrile or ethyl cyanoacetate and 1- or 2-naphthol in the presence of 10 mol % of titanium tetrachloride as catalyst. The reactions require no solvent; they are characterized by simple experimental procedure and easy isolation and can be performed on enlarged scale. |
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ISSN: | 1070-4280 1608-3393 |
DOI: | 10.1134/S1070428006120098 |