4-aryl or heteroaryl-2,6-bis[(substituted-amino)-...

Details 4-aryl or heteroaryl-2,6-bis[(substituted-amino)-... 4-aryl or heteroaryl-2,6-bis[(substituted-amino)-...

C - Chemistry, Metallurgy

07

D

260/277, 260/295

C07D 213/38 (2006.01) B41M 5/136 (2006.01) C07D 213/55 (2006.01) C07D 401/00 (2006.01) C07D 455/04 (2006.01)

Patent

CA 1180332

ABSTRACT OF THE DISCLOSURE Novel 4-aryl-or heteroaryl-2,6-bisl(substituted- amino)phenyl]pyridines which are useful as color formers in pressure-sensitive carbonless duplicating systems and thermal marking systems are prepared by reacting a 2-, 3- or 4-R1R2 N-acetophenone with an aryl or heteroaryl aldehyde in the present of ammonia or an ammonia-releasing agent.

398360

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