Process for the manufacture of N,N-(Dibenzohexatrienylene)ureas

Details Process for the manufacture of N,N-(Dibenzohexatrienylene)ureas Process for the manufacture of N,N-(Dibenzohexatrienylene)ureas

1988-01-19

1989-07-11

Springer, David B.

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

Organic compounds

Unsubstituted hydrocarbyl chain between the ring and the -c-...

540592, C07D22326

Patent

active

048473740

ABSTRACT:
N,N-(dibenzohexatrienylene)urea medicaments can be manufactured in a smooth one-step reaction by reacting a corresponding N,N-(dibenzohexatrienylene)amine with cyanic acid.

REFERENCES:
patent: 2948718 (1960-08-01), Schindler
patent: 4436660 (1984-03-01), Aufderhaar et al.
Durant et al., Chem. and Industry, (8/65), pp. 1428-1429.

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