2-{[Tris(hydroxymethyl)methyl]aminomethylene}cyclohexa-3,5-dien-1(2H)-one and its 6-hydroxy and 6-methoxy derivatives
- 11 October 2003
- journal article
- research article
- Published by International Union of Crystallography (IUCr) in Acta Crystallographica Section C Crystal Structure Communications
- Vol. 59 (11) , o616-o619
- https://doi.org/10.1107/s0108270103020997
Abstract
The title compounds, 2-{[tris(hydroxymethyl)methyl]aminomethylene}cyclohexa-3,5-dien-1(2H)-one, C11H15NO4, (I), 6-hydroxy-2-{[tris(hydroxymethyl)methyl]aminomethylene}cyclohexa-3,5-dien-1(2H)-one, C11H15NO5, (II), and 6-methoxy-2-{[tris(hydroxymethyl)methyl]aminomethylene}cyclohexa-3,5-dien-1(2H)-one, C12H17NO5, (III), adopt the keto–amine tautomeric form, with the formal hydroxy H atom located on the N atom, and the NH group and oxo O atom display a strong intramolecular N—H...O hydrogen bond. The N—H...O hydrogen-bonded rings are almost planar and coupled with the cyclohexadiene rings. The carbonyl O atoms accept two other H atoms from the alcohol groups of adjacent molecules in (I), and one from the alcohol and one from the phenol group in (II), but from only one alcohol H atom in (III).This publication has 5 references indexed in Scilit:
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