N&#8242;-[1-(2,4-Dioxo-3,4-dihydro-2H-1-benzopyran-3-ylidene)ethyl]thiophene-2-carbohydrazide

N&#8242;-[1-(2,4-Dioxo-3,4-dihydro-2H-1-benzopyran-3-ylidene)ethyl]thiophene-2-carbohydrazide

The title compound, C16H12N2O4S, was obtained by the condensation of 3-acetyl-4-hydroxycoumarin with thien-2-ylcarbonyl hydrazide. The pyran ring adopts a 2,4-dione tautomeric form. The benzopyran ring system is almost coplanar with the thiophene ring [dihedral angle 0.9&#8197;(2)&#1...

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Bibliographic Details
Main Authors:	Madeleine Helliwell, Despina A. Nasiopoulou, Philip A. Harris, Antigoni Kotali, John A. Joule
Format:	Article
Language:	English
Published:	International Union of Crystallography 2011-04-01
Series:	Acta Crystallographica Section E
Online Access:	http://scripts.iucr.org/cgi-bin/paper?S1600536811010907

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