6-Acylamino-5-substituted-benzoxazol-2-one compounds and method for using them
申请人:Eastman Kodak Company
公开号:US06515176B1
公开(公告)日:2003-02-04
Disclosed is a 6-acylamino-5-substituted-benzoxazol-2-one compound having the structural formula I:
wherein
Y is halogen or a substituent group linked to the rest of the compound by a hetero atom, and
R′ is a group containing at least 8 carbon atoms.
Also disclosed is a method for forming a cyan dye-forming coupler from the above compound. The method and intermediate provide a simplified manufacturing process.