Abstract
Whereas nitrones undergo cycloaddition to the C=N double bond of phenyl isothiocyanate, predominant addition to the C=S double bond of substituted phenyl isothiocyanates, methyl isothiocyanate and benzoyl isothiocyanate occurs. However, these cycloadducts are not stable but undergo fragmentation usually with the formation of thioamides and isocyanates.
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