Phenolic compounds and recording materials containing the same
申请人:Nippon Soda Co., Ltd.
公开号:EP1967514A1
公开(公告)日:2008-09-10
Phenolic compounds of general formula (I); and recording materials characterized by containing one of them and exhibiting high light stability wherein R1 and R2 are each hydrogen or C1-6 alkyl; m is an integer of 1 to 6; n is an integer of 0 to 2; p and t are each an integer of 0 to 3 with the proviso that not both are simultaneously 0; R3 and R4 are each nitro, carboxyl, halogeno, C1-6 alkyl, or the like; q and u are each an integer of 0 to 2 with the proviso that when q or u is 2, R3S or R4S may be different from each other; and Y is CO or NR5CO (wherein R5 is hydrogen or the like), with the provisos that when Y is CO, p is 1 and that when p is 0 and Y is NR5CO, n is not 0.