title: 5-[3-(2,5-Dimethoxy-phen-yl)prop-2-enyl-idene]-1,3-diethyl-2-thioxohexa-hydro-pyrimidine-4,6-dione.
abstract: 1,3-Diethyl-2-thio-barbituric acid reacts with 2,5-dimethoxy-benzaldehyde to form the title Knoevenagel product, C(19)H(22)N(2)O(4)S. 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 Å).
authors.forename: Abdullah Mohamed
authors.initials: AM
authors.lastname: Asiri
authors.forename: Salman A
authors.initials: SA
authors.lastname: Khan
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng