Process for the production of N,N'-bis-(3-aminophenyl)-ureas

Details Process for the production of N,N'-bis-(3-aminophenyl)-ureas Process for the production of N,N'-bis-(3-aminophenyl)-ureas

1989-11-14

1991-02-19

Hollrah, Glennon H.

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

Organic compounds

Amino nitrogen containing

564 48, C07C27318

Patent

active

049946110

ABSTRACT:
The present invention is directed to a process for the preparation of N,N'-bis-(3-aminophenyl)-ureas corresponding to formula (I) ##STR1## wherein R represents a linear or branched C.sub.1 -C.sub.6 alkyl group which is in the 2-, 4- and/or 6-position,
characterized in that the corresponding phenylene diamines are reacted with urea in a molar ratio of greater than 2:1 in chlorobenzene as solvent.

REFERENCES:
patent: 1617847 (1927-02-01), Heinze
patent: 2503797 (1950-04-01), Brunner et al.
patent: 3214468 (1965-10-01), Frick et al.
I. L. Khmel'nitskaya et al. en Zhurnal Obschei Khimii 30 (2), 1960.
W. R. Turner & L. M. Werbel in J. Med. Chem. 28, 1985.
A. Ostrogovich in Liebigs Ann; 293 1896, on pgs.
DRP 140613, Vom. 4, Dec. 1900 ab.
DRP 268658, Vom. 14, Sep. 1912.

Affiliated with

Also associated with

Rating

Process for the production of N,N'-bis-(3-aminophenyl)-ureas does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the production of N,N'-bis-(3-aminophenyl)-ureas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of N,N'-bis-(3-aminophenyl)-ureas will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1145159