Synthesis and Crystal Structure of 3-Ethyl Methylene)imidazolidine-4

Abstract

The structure of the title compound, C<inf>17</inf>H<inf>16</inf>N<inf>2</inf>O<inf>3</inf>S, was prepared by the reaction of chromone-3-carboxaldehyde with 2-thioxo-imidazolidine-4-one and ethyl iodide. The five-membered imidazolidine ring is in a planar conformation with a maximum deviation of 0.013(1)Å, and making a dihedral angle of 5.36(5)° with the benzopyran ring system. The crystal structure is stabilized by intra and intermolecular hydrogen-bond interactions. 2007 © The Japan Society for Analytical Chemistry.