Process for preparing aromatic isocyanates

Details Process for preparing aromatic isocyanates Process for preparing aromatic isocyanates

1975-09-11

1976-11-16

Gotts, Lewis

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260471C, C07C11800

Patent

active

039924300

ABSTRACT:
A process for preparing aromatic isocyanates from aryl-subsituted urethanes by transesterifying a urethane with a phenolic compound to form an N-aryl arylcarbamate, and thermally decomposing the N-aryl arylcarbamate to form the aromatic isocyanate.

REFERENCES:
patent: 3734941 (1973-05-01), Sydor
Volodavskaya et al.; Chemical Abstracts, vol. 74, p. 99208m (1971).

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