Efficient synthesis of novel bis(dihydropyrano[2,3c]pyrazoles), bis(4H-chromenes) and bis(dihydropyrano[3,2-c]chromenes) with amide functionality

Autor:	Ismail A. Abdelhamid, Amna M. Abdella, Holger Butenschön, Amr M. Abdelmoniem, Ahmed H. M. Elwahy
Rok vydání:	2019
Předmět:	lcsh:QD241-441 bis(pyrano[3 2-c]chromene) Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie chemistry.chemical_compound lcsh:Organic chemistry Chemistry Amide ddc:540 Organic Chemistry Bis(pyrano[2 3-c]pyrazole) Organic chemistry bis(chromene) amide linkages
Zdroj:	Arkivoc 4 (2019) ARKIVOC, Vol 2019, Iss 6, Pp 306-324 (2019)
ISSN:	1551-7012
DOI:	10.24820/ark.5550190.p011.071
Popis:	A synthesis of novel bis(1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitriles), bis(4H-chromene-3-carbonitriles) and bis(dihydropyrano[3,2-c]chromenes), which are linked to aliphatic spacers via amide linkages was achieved via multicomponent reactions (MCR) of the appropriate bis-aldehyde with two equivalents of both of malononitrile and 3-methylpyrazol-5-one, dimedone or 4-hydroxycoumarin in a basic solution.
Databáze:	OpenAIRE
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