Effect of methyl iodide in synthesis of phenyl isocyanate by carbonylation of nitrobenzene in presence of PdCl2-pyridine catalyst
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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.
KeywordsMethyl Phenyl Pyridine Carbonylation Iodide
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