申请人:Fuji Photo Film Co., Ltd.
公开号:US04637902A1
公开(公告)日:1987-01-20
A base precursor represented by the following general formula (A) or (B): ##STR1## wherein A.sub.1, A.sub.2, A.sub.5, A.sub.6, A.sub.7, and A.sub.8 each represents a hydrogen atom, an alkyl group, a substituted alkyl group, a cycloalkyl group, an alkenyl group, an aralkyl group, an aryl group, a substituted aryl group, an acyl group, or a heterocyclic group, and A.sub.1 and A.sub.2 can combine to form a ring and two of A.sub.5, A.sub.6, A.sub.7, and A.sub.8 can combine to form a ring, A.sub.3 and A.sub.4 each represents a hydrogen atom, an alkyl group, a substituted alkyl group, a cycloalkyl group, or an aralkyl group, and A.sub.3 and A.sub.4 can combine to form a ring or A.sub.3 and A.sub.4 can be a double bond forming an imino group from ##STR2## and X represents a nucleophilic group.
一种以以下一般式(A)或(B)表示的基本前体:##STR1##其中A.sub.1,A.sub.2,A.sub.5,A.sub.6,A.sub.7和A.sub.8分别代表氢原子、烷基、取代烷基、环烷基、烯基、芳基烷基、芳基、取代芳基、酰基或杂环基,A.sub.1和A.sub.2可以结合形成一个环,A.sub.5、A.sub.6、A.sub.7和A.sub.8中的两个可以结合形成一个环,A.sub.3和A.sub.4分别代表氢原子、烷基、取代烷基、环烷基或芳基烷基,A.sub.3和A.sub.4可以结合形成一个环或A.sub.3和A.sub.4可以是一个双键,从##STR2##形成亚胺基,X代表亲核基团。