(Z)-6-{[1,3-Dihydroxy-2-(hydroxymethyl)propan-2-ylamino]methylene}-2-Methoxy-4-{(E)-[3-(trifluoromethyl)phenyl]diazenyl}cyclohexa-2,4-Dienone

Abstract

The molecule of the title compound, C<inf>19</inf>H<inf>20</inf>F <inf>3</inf>N<inf>3</inf>O<inf>5</inf>, at 150 K, is nearly planar and exists in the keto-amine (N-H⋯O) tautomeric form, with a strong intramolecular hydrogen bond of 2.585 (2) Å between the O and N atoms. The configuration around the azo -N=N- double bond is trans, as found for other diazene derivatives, and the dihedral angle between the planes of the two aromatic rings is 7.81 (4)°. © 2005 International Union of Crystallography Printed in Great Britain - all rights reserved.