Preparation of isocyanates and/or derivatives thereof

Details Preparation of isocyanates and/or derivatives thereof Preparation of isocyanates and/or derivatives thereof

1982-03-11

1984-02-07

Torrence, Dolph H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

204 59R, 560 24, 560 25, 560 27, 560 29, 560 30, 560 31, 560 32, 560157, 564 32, 564 48, 564 52, 564 53, 564218, C07C11800, C07C12506, C07C12719

Patent

active

044302622

ABSTRACT:
Isocyanates and derivatives thereof are prepared by oxidative conversion of compounds having at least one group ##STR1## wherein X represents OY or ##STR2## wherein Y is H, a metal ion or group NR.sup.3 R.sup.4 R.sup.5 R.sup.6 wherein each of R.sup.3, R.sup.4, R.sup.5 and R.sup.6 which may be the same or different, is H, alkyl or (substituted) (alk)aryl and Z is a (substituted) alkyl or aryl group. Phenyl isocyanate and derivatives thereof are preferably prepared electrochemically from the corresponding oxamides and oxanilides.

REFERENCES:
patent: 4322365 (1982-03-01), Merger et al.

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