Abstract
When the PdCl2-pyridine catalyst is activated by methyl iodide the optimum temperature for the synthesis of phenyl isocyanate by the carbonylation of nitrobenzene drops from 200 to 160°. The effect of the MeI consists in its reaction with the pyridine to give N-methylpyridinium iodide.
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More From: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science
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