New, Diastereoselective One-Pot Synthesi
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Abdolali Alizadeh; Hassan Masrouri
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Article
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2006
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John Wiley and Sons
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German
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## Abstract An effective route to hydantoins is described, based on the 2โ:โ1โ:โ1 addition of arylsulfonyl isocyanates, dialkyl acetylenedicarboxylates, and dialkyl trialkylsilyl phosphites. The resulting tetrasubstituted, stable hydantoins **4**/**4โฒ** (__Table__) were obtained in excellent yields