4-Oxo-N-phenyl-4H-chromene-2-carboxamide and of a new polymorph of 7-meth­oxy-4-oxo-N-p-tolyl-4H-chromene-2-carboxamide and its hemihydrate

Reis, J.; Gaspar, A.; Borges, F.; Gomes, L.R.; Low, J.N.

doi:10.1107/S0108270113029727

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 1
The relationships of the compounds discussed in this paper, showing the conformations of the C—N rotamers formed. Note that the conformations of carboxamides (1) and (3c) are the same, but different from those of (2), (3a) and (3b), which are the same.

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 69| Part 12| November 2013| Pages 1527-1533

doi:10.1107/S0108270113029727

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