Crystal structures of ethyl 6-(4-methyl­phen­yl)-4-oxo-4H-chromene-2-carboxyl­ate and ethyl 6-(4-fluoro­phen­yl)-4-oxo-4H-chromene-2-carboxyl­ate

The crystal structures of two chromone derivatives are described, one of which has two independent mol­ecules in the asymmetric unit. A comparison of the dihedral angles between the mean planes of the central chromone core with those of the substituents shows that each mol­ecule differs significantl...

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Bibliographic Details
Main Authors: Gomes, Ligia R., Low, John Nicolson, Fernandes, Carlos, Gaspar, Alexandra, Borges, Fernanda
Format: Online
Language:English
Published: International Union of Crystallography 2016
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4704759/