申请人:Tokuyama Corporation
公开号:EP2457915A1
公开(公告)日:2012-05-30
A chromene compound having a skeleton represented by the following formula (1) and exhibiting double peak characteristic:
wherein Z is a group represented by any one of the following formulas:
n is an integer of 1 to 3, when n is 2 or 3, Z's may be the same or different, with the proviso that when n is 1, Z cannot be -CH2-, and when n is 2 or 3, Z's cannot be -CH2- at the same time; R1 is an electron absorbing group having a Hammett constant σp of more than 0, with the proviso that when there are a plurality of R1's, R1's may be the same or different; and X and Y are each independently an oxygen atom or =NR2, with the proviso that X and Y cannot be oxygen atoms at the same time.
具有以下式(1)所表示的骨架并呈现双峰特性的一种咔喷啉化合物:
其中Z是由以下任一式表示的基团:
n为1至3的整数,当n为2或3时,Z可能相同或不同,但当n为1时,Z不能为-CH2-,当n为2或3时,Z不能同时为-CH2-;R1是具有Hammett常数σp大于0的电子吸收基团,但当存在多个R1时,R1可以相同或不同;X和Y分别独立地是氧原子或=NR2,但X和Y不能同时为氧原子。