Appeal No. 95-4721
Application No. 08/128,332
and 11, all the claims remaining in the present application.
A copy of illustrative 11 is appended to this decision.
The examiner relies upon the following reference as
evidence of obviousness:
Dix 3,484,487 Dec. 16, 1969
Appellants' claimed invention is directed to a process
for preparing aminated diketobis(aryl or
heteroaryl)pyrrolopyrroles of the recited formula. The
process comprises reacting a pyrrolopyrrole of the claimed
formula with a secondary amine in the presence of an anhydrous
dipolar aprotic solvent, such as
N-methylpyrrolidone. The reaction is conducted at a
temperature in the range of 100E to 220EC at a pressure of
from 1 to 3 bar.
The present application is a grandchild of U.S.
Application No. 07/381,212, filed July 17, 1989. Appellants
took an appeal to this Board in the grandparent application,
and the only difference between independent claim 11 now on
appeal and independent claim 11 in the grandparent application
is that in the present application the substituent X of the
1
pyrrolopyrrole reactant is a brominated aryl group, whereas in
-2-
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Next
Last modified: November 3, 2007