申请人:Giba-Geigy Corporation
公开号:US04349679A1
公开(公告)日:1982-09-14
Phthalide compounds of the formula ##STR1## wherein A and B, independently of the other, represent a monovalent radical of the formula ##STR2## wherein X.sub.1 represents an amino group of the formula ##STR3## X.sub.2 represents halogen or an amino group of the formula ##STR4## W is hydrogen or halogen, R.sub.1 and T.sub.1 each represents alkyl of at most 12 carbon atoms which is unsubstituted or substituted by halogen, hydroxyl, cyano, lower alkoxy or lower alkylcarbonyloxy, cycloalkyl, phenyl, benzyl or phenyl or benzyl which are substituted by halogen, nitro, lower alkyl or lower alkoxy, R.sub.2 and T.sub.2 each represents hydrogen, alkyl of at most 12 carbon atoms, which is unsubstituted or substituted by halogen, hydroxyl cyano, lower alkoxy or lower alkyl-carbonyloxy; cycloalkyl, benzyl or benzyl which is substituted by halogen, nitro, lower alkyl or lower alkoxy, and T.sub.2 may also represent acyl having 1 to 8 carbon atoms or each pair of substituents R.sub.1 and R.sub.2 or T.sub.1 and T.sub.2 together with the nitrogen atom to which they are attached independently represents a 5- or 6-membered, heterocyclic radical, R.sub.3 represents hydrogen, halogen, lower alkyl, lower alkoxy or lower alkyl-carbonyloxy, Y, Y.sub.1 and Y.sub.2 each represents hydrogen, alkyl which has at most 12 carbon atoms and is unsubstituted or substituted by halogen, hydroxyl, lower alkoxy or cyano, or benzyl which is unsubstituted or substituted by halogen, nitro, lower alkyl or lower alkoxy, Z represents hydrogen, lower alkyl or phenyl, and wherein the benzene ring D is not further substituted or additionally contains halogen and the rings E and G independently of the other, are unsubstituted or substituted by halogen, nitro, lower alkyl or lower alkoxy, with the proviso that at least one of W and X.sub.2 is halogen; these compounds are particularly useful as color formers in pressure-sensitive or heat-sensitive recording materials.
公式为##STR1##的邻苯二甲酸酐化合物,其中A和B分别独立地表示公式##STR2##的一价基团,其中X.sub.1表示公式##STR3##的氨基团,X.sub.2表示卤素或公式##STR4##的氨基团,W为氢或卤素,R.sub.1和T.sub.1各自表示最多有12个碳原子的烷基,该烷基未被卤素、羟基、氰基、低级烷氧基或低级烷基羰氧基取代,环烷基、苯基、苄基或取代了卤素、硝基、低级烷基或低级烷氧基的苯基或苄基,R.sub.2和T.sub.2各自表示氢、最多有12个碳原子的烷基,该烷基未被卤素、羟基、氰基、低级烷氧基或低级烷基羰氧基取代,环烷基、苄基或取代了卤素、硝基、低级烷基或低级烷氧基的苯基,T.sub.2还可以表示具有1到8个碳原子的酰基,或者每对取代基R.sub.1和R.sub.2或T.sub.1和T.sub.2与它们连接的氮原子一起独立地表示5-或6-成员的杂环基团,R.sub.3表示氢、卤素、低级烷基、低级烷氧基或低级烷基羰氧基,Y、Y.sub.1和Y.sub.2各自表示氢、最多有12个碳原子的烷基,该烷基未被卤素、羟基、低级烷氧基或氰基取代,或者未被卤素、硝基、低级烷基或低级烷氧基取代的苯基,Z表示氢、低级烷基或苯基,其中苯环D没有进一步取代或额外含有卤素,环E和G独立地未被取代或被卤素、硝基、低级烷基或低级烷氧基取代,但至少W和X.sub.2中的一个是卤素;这些化合物特别适用于压敏或热敏记录材料中的色彩形成剂。