Browsing Makale Koleksiyonu by Subject "Wittig Reactions"
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A facile protocol for the preparation of 5-alkylidene and 5-imino substituted hydantoins from N,N '-disubstituted parabanic acids
(Pergamon-Elsevier Science LTD, 2012)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 ...