8 research outputs found
3-(4-Methoxyphenyl)pent-2-ene-1,5-dioic acid
In the title compound, C12H12O5, molecules are linked into antiparallel hydrogen-bonded sheets through inversion dimers generated via two O—H⋯O hydrogen bonds. Using the R
2
2(8) motif as a building block, hydrogen-bonded chains of a C
2
2(8) superstructure are then generated
4-(4-Methoxyphenyl)-1-phenylpyridine-2,6(1H,3H)-dione
In the title compound, C18H15NO3, the pyridine-2,6-dione ring adopts an envelope conformation. The phenyl ring lies approximately perpendicular to the mean plane of the pyridine-2,6-dione ring [dihedral angle = 81.5 (1)°], while the methoxyphenyl ring is tilted to the same plane by a dihedral angle of 34.8 (1)°. Intermolecular C—H⋯O interactions link the molecules into chains along [100]
Ethyl 4-(4-hydroxyphenyl)-6-methyl-2-oxo-1,2,3,4 tetrahydropyrimidine-5-carbox ylate monohydrate
There are three formula units in the asymmetric unit of the title compound, C14H16N2O4 center dot H2O. Molecules are linked by N-H center dot center dot center dot O hydrogen bonds into dimers with the common R-2(2)(8) graph-set motif. Between dimers, single N-H center dot center dot center dot O hydrogen bonds are formed between the other N-H group of each pyrimidine ring and the hydroxyl groups. The water molecules accept O-H center dot center dot center dot O hydrogen bonds from the hydroxyl groups and donate hydrogen bonds to the ester groups