A facile protocol for the preparation of 5-alkylidene and 5-imino substituted hydantoins from N,N′-disubstituted parabanic acids |
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| Authors: | ?evket Hakan Ü ngö ren,?brahim KaniAhmet Gü nay |
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| Affiliation: | a Department of Chemistry, Faculty of Arts and Sciences, Bozok University, 66200 Yozgat, Turkey
b Department of Chemistry, Faculty of Sciences, Anadolu University, 26470 Eski?ehir, Turkey |
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| Abstract: | A convenient procedure for the preparation of various substituted (thio)hydantoins is described. The method is based on Wittig and aza-Wittig reactions of parabanic acids with phosphonium ylides. The reactions occurred both regio- and stereo-selectively. |
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| Keywords: | Wittig reactions Hydantoins Imidazolidine Parabanic acid derivatives Iminophosphoranes |
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