The reaction of (E)-2-benzylideneoxazolidine-4,5-dione (1) with the methylenetriphenylphosphoranes (2) afforded new ylid-phosphoranes of type 3. The mechanism that accounts for formation of adducts 3 is discussed. Structural reasoning for compounds 3 was based on compatible analytical, chemical and spectroscopic results.
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Sidky et al. (1987) studied this question.
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