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5-[3-(2,5-Dimethoxyphenyl)prop-2-enylidene]-1,3-diethyl-2-thioxohexahydropyrimidine-4,6-dione
Journal article   Open access

5-[3-(2,5-Dimethoxyphenyl)prop-2-enylidene]-1,3-diethyl-2-thioxohexahydropyrimidine-4,6-dione

Abdullah Mohamed Asiri, Salman A. Khan and Seik Weng Ng
Acta crystallographica. Section E, Structure reports online, Vol.65(8), pp.O1820-U2629
01/08/2009
PMID: 21583522

Abstract

Crystallography Physical Sciences Science & Technology
1,3-Diethyl-2-thiobarbituric acid reacts with 2,5-dimethoxybenzaldehyde to form the title Knoevenagel product, C19H22N2O4S. In the compound, the two six-membered rings at either end of the three-membered -CHCHCH- chain are nearly coplanar with this fragment (r.m.s. deviation of the two six-membered rings and the three chain atoms = 0.08 angstrom).
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https://doi.org/10.1107/S1600536809026099View
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