engleski

Mechanochemical Preparation of 3, 5-Disubstituted Hydantoins from Dipeptides and Unsymmetrical Ureas of Amino Acid Derivatives

5-Substituted-3-(alkoxycarbonyl)alkyl-hydantoin derivatives were prepared by mechanochemistry from amino esters or dipeptides, via a 1, 1′-carbonyldiimidazole-mediated one-pot/two-step cyclization reaction involving amino acid unsymmetrical urea A and carboxy-imidazolyl-dipeptide ester B intermediates. Comparative experiments in solution were also performed. The successful preparation of an antibacterial agent precursor was also investigated.

3 ; 5-disubstituted hydantoins ; mechanochemistry

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