X-Ray Supramolecular Structure, NMR Spectroscopy and Synthesis of 3-Methyl-1-phenyl-1H-chromeno[4,3-c]pyrazol-4-ones Formed by the Unexpected Cyclization of 3-[1-(Phenyl-hydrazono)ethyl]-chromen-2-ones

X-Ray Supramolecular Structure, NMR Spectroscopy and Synthesis of 3-Methyl-1-phenyl-1H-chromeno[4,3-c]pyrazol-4-ones Formed by the Unexpected Cyclization of 3-[1-(Phenyl-hydrazono)ethyl]-chromen-2-ones

The molecular structures of nine 3-methyl-1-phenyl-1H-chromeno[4,3-c]pyrazol-4-one isomers, obtained by the oxidative cyclization of the corresponding 1-phenylhydrazono chromen-2-ones with copper acetate as catalyst, are reported. The molecular and supramolecular structures of the 8-chloro, 8-bromo-...

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Bibliographic Details
Main Authors:	Efren V. García-Baez, Jorge Gonzalez, Alejandro Cruz, Francisco J. Martínez-Martinez, Itzia I. Padilla-Martinez, Irma Y. Flores-Larios
Format:	Article
Language:	English
Published:	MDPI AG 2011-01-01
Series:	Molecules
Subjects:	oxidative cyclization benzopyrano-arylhydrazone benzopyrano-pyrazolone pi-stacking
Online Access:	http://www.mdpi.com/1420-3049/16/1/915/

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