organic compounds
Open access
In the crystal structure of the title compound, C28H23F3N4S·CHCl3, the chloroform solvate molecules connect the pyrimidine molecules into chains along [101] through weak C—HN and C—HCl hydrogen-bond interactions. There are further connections between adjacent chains through FCl halogen contacts of 3.185 (3) Å, with the –CF3 group presenting a significant short FF interchain distance of 2.712 (4) Å. The five-membered pyrazole ring is approximately planar (r.m.s. deviation = 0.050 Å). The pyrimidine ring makes dihedral angles of 84.15 (8) and 4.56 (8)° with the benzene rings.
data reports
Open access
In the title compound, C13H13ClO4, the dihedral angle between the chlorobenezene ring and the least-squares plane through the 4-methoxy-2-oxobut-3-enoate ethyl ester residue (r.m.s. deviation = 0.0975 Å) is 54.10 (5)°. In the crystal, molecules are connected by methoxy–ketone and benzene–carboxylate carbonyl C—HO interactions, generating a supramolecular layer in the ac plane.