Process for the preparation of organic isocyanates from nitro de

Details Process for the preparation of organic isocyanates from nitro de Process for the preparation of organic isocyanates from nitro de

1979-09-20

1982-04-06

Ford, John M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C119048

Patent

active

043235158

ABSTRACT:
A process for the synthesis of aromatic isocyanates by the reduction of aromatic derivatives with carbon monoxide in the presence of catalysts consisting of metal complexes of porphyrins. In one embodiment, the metallic porphyrin is synthesized in situ from a porphryin and a metal or a metal derivative.

REFERENCES:
patent: 2966453 (1960-12-01), Gleim et al.
patent: 3576835 (1971-04-01), Smith et al.
patent: 4070307 (1978-01-01), Daglas et al.
patent: 4072630 (1978-02-01), Daglas et al.
Grignard, Traite' de Chimie. Organique, pp. 203, 212, 214, 215, 218, 220, 221-223, Tome XIX.

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