title: Crystal structure of 1'-(2-methyl-prop-yl)-2,3-di-hydro-spiro-[1-benzo-thio-pyran-4,4'-imidazolidine]-2',5'-dione.
abstract: In the title compound, C15H18N2O2S, the 2,3-di-hydro-1-benzo-thio-pyran ring adopts a sofa conformation and the hydantoin ring is twisted with respect to the benzene ring at 78.73 (17)°. In the crystal, pairs of N-H⋯O hydrogen bonds link the mol-ecules into inversion dimers.
authors.affiliation: Department of Chemistry, School of Engineering and Technology, Jain University, Bangalore 562 112, India.
authors.forename: Cynthia E
authors.initials: CE
authors.lastname: Theodore
authors.affiliation: Institution of Excellence, University of Mysore, Manasagangotri, Mysore 570 006, India.
authors.forename: S
authors.initials: S
authors.lastname: Naveen
authors.affiliation: Department of Chemistry, School of Engineering and Technology, Jain University, Bangalore 562 112, India.
authors.forename: S B
authors.initials: SB
authors.lastname: Benaka Prasad
authors.affiliation: Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore 570 006, India.
authors.forename: M
authors.initials: M
authors.lastname: Madaiah
authors.affiliation: Department of Nanotechnology, Center for Post Graduate Studies, Visveswaraya Technological University, Bangalore 560 018, India.
authors.forename: C S
authors.initials: CS
authors.lastname: Ananda Kumar
authors.affiliation: Department of Studies in Physics, University of Mysore, Manasagangotri, Mysore m570 006, India.
authors.forename: N K
authors.initials: NK
authors.lastname: Lokanath
keywords: crystal structure; hydantoin compounds; hydrogen bonding; spiro­[1-benzo­thio­pyran-4,4′-imidazolidine]