| Abstrakt: |
1.The rhodium carbonyl hydride complex RhH(CO) (PPh3)3 is an active catalyst for the synthesis of phenyl isocyanate, the o-, m-, and p-tolyl isocyanates, and mesityl isocyanate from the corresponding aromatic nitro compounds by carbonylation with CO. The optimum reaction conditions were determined (pressure, temperature, time, substrate/catalyst ratio).2.The use of MoCl5 as a cocatalyst increases the conversion of the nitro compound, the yield of the isocyanate, and the selectivity of the process.3.Methyl substituents in the o-position activate the nitro group when nitro compounds are carbonylated with CO. |
Full text from SpringerLink