| 摘要 |
Disclosed are styryl dyes of formula;;wherein
R1, R2, R3, R′1, R′2 and R′3 independently of each other are hydrogen; —NH(CO)—C1-C5alkyl; —N(C1-C5alkyl)(C1-C5alkyl-CN); C1-C6alkoxy; a heterocyclic radical; or R1 and R2 or R′1 and R′2 together form a 5- to 10-membered, monocyclic, carbocyclic or heterocyclic ring; wherein at least one of R1, R2, R3, R′1, R′2 and R′3 is different from hydrogen;Q and Q′ independently from each other are the direct bond; *—C(O)—*; *—C(O)O—*; *—OCO—*; *—N(R4)—*;;;*—C(O)N(R6)—*; or *—(R6)NC(O)—*; and
R4, R5 and R6 independently from each other are hydrogen; C1-C14alkyl; C2-C14alkenyl; C6-C12aryl; C6-C12aryl-C1-C10alkyl; or C1-C10alkyl(C5-C12aryl);X and X′ are *—(CH2)m—*;Y1 and Y2 independently from each other are C1-C10alkylene; C6-C10cycloalkylene; C5-C12arylene; or C6-C12arylene-(C1-C10alkylene);An− is an anion;m is a number from 1 to 8;n is 0, or 1; andp is 0, or 1. |
