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Orientador(es)
Resumo(s)
The Diels-Alder reaction of (E)-2-styrylchromones with a pyrimidine ortho-quinodimethane is reported for the first time. These cycloaddition reactions afford mixtures of two regioisomeric tetrahydroquinazoline-substituted chromones in moderate to excellent global yields. Irrespectively of the substituents on the 2-styrylchromones, the 2-(7-aryl-4-methoxy-2-methyl-5,6,7,8-tetrahydroquinazolin-6-yl)chromone derivatives are always the major isomers.
Descrição
Palavras-chave
Tetrahydroquinazolines Cycloadditions 2-Styrylchromones Pyrimidine ortho-Quinodimethane NMR
Contexto Educativo
Citação
Editora
Elsevier