‘Push–Pull’ and spirobicyclic structures by reacting N-methyl cyclic ketene-N,X (X=S, O)-acetals with isocyanates and isothiocyanates

Add time:08/03/2019    Source:sciencedirect.com

Nucleophilic N-methyl cyclic ketene-N,X (X=S, O)-acetals can react with electrophilic aryl isocyanates and aryl isothiocyanates to form ‘push–pull’ mono-adducts, di-adducts and spirobicyclic 6/5 ring compounds.

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