Ontology highlight
ABSTRACT:
SUBMITTER: Gomes LR
PROVIDER: S-EPMC4992908 | biostudies-other | 2016 Jul
REPOSITORIES: biostudies-other
Gomes Lígia R LR Low John Nicolson JN Fonseca André A Matos Maria João MJ Borges Fernanda F
Acta crystallographica. Section E, Crystallographic communications 20160610 Pt 7
Three coumarin derivatives, viz. 6-methyl-N-(3-methyl-phen-yl)-2-oxo-2H-chromene-3-carboxamide, C18H15NO3 (1), N-(3-meth-oxy-phen-yl)-6-methyl-2-oxo-2H-chromene-3-carboxamide, C18H15NO4 (2), and 6-meth-oxy-N-(3-meth-oxy-phen-yl)-2-oxo-2H-chromene-3-carboxamide, C18H15NO5 (3), were synthesized and structurally characterized. The mol-ecules display intra-molecular N-H⋯O and weak C-H⋯O hydrogen bonds, which probably contribute to the approximate planarity of the mol-ecules. The supra-molecular stru ...[more]