Process for producing chlorosulfonyl isocyanate

Details Process for producing chlorosulfonyl isocyanate Process for producing chlorosulfonyl isocyanate

1990-09-11

1992-06-02

Langel, Wayne

Chemistry of inorganic compounds

Nitrogen or compound thereof

Carbon containing

C01B 1745

Patent

active

051184877

ABSTRACT:
Provided is a process for producing chlorosulfonyl isocyanate by reacting sulfur trioxide with cyanogen chloride, which comprises feeding sulfur trioxide and cyanogen chloride simultaneously to the reaction zone and maintaining the temperature of the reacting zone at 10.degree. to 50.degree. C. This is a commercially very simple process and can produce chlorosulfonyl isocyanate with high purity in high yield.

REFERENCES:
patent: 3375088 (1968-03-01), Onodera et al.
Graf, Angew. Chem. Int'l vol. 7 #3 (1968) pp. 172-173.
Organic Synthesis pp. 226-231.

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