| 摘要 |
A photo reactive material, such as a photochromic material, which has the following structure: <CHEM> where A is a six membered carbocyclic or heterocyclic ring; each R is alkyl, alkenyl, alkynyl, aryl, carbocyclic, heterocyclic, alkyl carbocyclic or alkyl heterocyclic or at least two of the R groups together form part of a carbocyclic or heterocyclic ring or one of the R groups is hydrogen with the other two being selected from the above; R* are independent of one another and are selected from branched or linear C1-C10 alkyls and carbocyclic or heterocyclic groups or both form part of a carbocyclic or heterocyclic ring; R<+>m is selected from alkyl alkoxy, amino, halogen, cyano, nitro, trifluoromethyl or aryl and m has a value between 0 and 4; R<+>n is selected from carbocyclic and heterocyclic groups which are fused to A and n has a value between 0 and 2. R' is selected from hydrogen, alkyl, alkoxy, amino, carbocylic or heterocyclic. R'' is selected from hydrogen, alkyl, aryl, heteroaryl, alkenyl, alkynyl, alkoxy, aryloxy, amino, halogen, cyano, nitro, trifluoromethyl, imino, azo, carboxy ester or amide or is a carbocyclic or heterocyclic group fused to the moiety. |
