Formanilide → Phenyl isocyanate

HRID 1706342Notes

Reaction equation

HRID 1706342 reaction equation
[C:1]1([NH:7][CH:8]=[O:9])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1>C(#N)C1C=CC=CC=1>[C:1]1([N:7]=[C:8]=[O:9])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1

Participants

3

Reactant 1

HCID 7671Formanilide

Product 1

HCID 7672Phenyl isocyanate

Reagents, catalysts & solvents 1

HCID 7505BenzonitrileSolvent

Procedure

The experiment of Example X was repeated in such a way that a mixture of phenyl formamide and benzonitrile was evaporated at a rate of 5 ml/hour in a gas stream of 110 liters of nitrogen and 3 liters of air/hour. The gas mixture also comprised carbon disulphide, which was fed at a rate of 0.67% per hour, calculated on the added amount by weight of n-hexyl formamide. Use of the same catalyst bed as in Example XIX at a temperature of 375° C. resulted in a yield of phenyl isocyanate of 41% at a selectivity of 74%.

Workup

  1. customwas evaporated at a rate of 5 ml/hour in a gas stream of 110 liters of nitrogen and 3 liters of air/hour

Sources & evidence

ORD record
ord-54d17eef3a5b425bbf984b4f7d466ed3
Source dataset
uspto-grants-1980_06
Patent number
US04207251

Reaction notes

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