Simple and efficient synthesis with theoretical calculations of novel N-halamine monomers

Hydantoins represent a group of compounds which over the past few years has attracted great attention because of their diverse biological activities. The synthetic methods for 5,5-dimetyhyl hydantoin (well-known biocidal material) available in literature are particularly difficult, and the yield of the synthesis after purification does not exceed 40%. On the other hand, styrene-type monomers containing spirohydantoin moieties were successfully synthesized by N-alkylation reaction. A simple and efficient preparation of N-chlorinated (N-halamine) monomers is presented, and the experimental data are supported by DFT calculations.