Crystal structure of ethyl (E)-4-(4-chlorophenyl)-4-methoxy-2-oxobut-3-enoate

Abstract

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—H...O interactions, generating a supramolecular layer in the ac plane.

Keywords

• crystal structure
• methoxy–ketone interactions
• benzene–carboxylate carbonyl interactions
• 4-methoxy-2-oxobut-3-enoate ethyl ester