Synthesis of C3-nitroalkylated-4-hydroxycoumarin and hydroxyiminodihydrofuroquinolinone derivatives via the Michael addition of cyclic 1,3-dicarbonyl compounds to β-nitrostyrenes

Herein, we describe a practical and efficient method for the C3-alkylation of 4-hydroxycoumarin by sonication under ‘on water’ conditions and mild temperatures using various substituted β-nitrostyrenes. In addition, we report on the development of a convenient process for the regioselective synthesi...

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Veröffentlicht in:	Tetrahedron 2011-04, Vol.67 (16), p.2870-2877
Hauptverfasser:	Barange, Deepak Kumar, Kavala, Veerababurao, Kuo, Chun-Wei, Lei, Po-Min, Yao, Ching-Fa
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemistry Derivatives Exact sciences and technology Heterocyclic compounds Heterocyclic compounds with n hetero atom and also o and/or s, se, te hetero atoms Heterocyclic compounds with o, s, se, te hetero atom and condensed derivatives Heterocyclic compounds with only one n hetero atom and condensed derivatives Isomers Methodology Michael reaction Noncondensed benzenic compounds Organic chemistry Preparations and properties Synthesis (chemistry) Tetrahedrons
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