Method for producing carbonyldiimidazole

Details Method for producing carbonyldiimidazole Method for producing carbonyldiimidazole

2005-05-10

2005-05-10

McKane, Joseph K. (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

06891045

ABSTRACT:
In a process for preparing carbonyldiimidazole from imidazole and phosgene in an inert solvent, the imidazole hydrochloride which results as coupled product is removed as melt from the resulting reaction mixture by phase separation.

REFERENCES:
patent: 4965366 (1990-10-01), Novy
patent: 0 692 476 (1996-01-01), None

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