Fluorescent brighteners, methods of preparation thereof, fluorescent brightener compositions, and methods of preparation and uses thereof
申请人:Naik Narayan Shantaram
公开号:US20070117887A1
公开(公告)日:2007-05-24
A compound of Formula (I)
wherein R
1
, R
2
, and R
3
are independently at each occurrence hydrogen, a halogen, a cyano functionality, a C
1
-C
20
aliphatic functionality, a C
3
-C
10
cycloaliphatic functionality or a C
3
-C
20
aromatic functionality, with the proviso that R
2
and R
3
are not hydrogen when R
1
is a methyl or hydrogen; R
4
and R
5
are independently at each occurrence hydrogen, a halogen, a cyano functionality, a C
1
-C
20
aliphatic functionality, a C
3
-C
10
cycloaliphatic functionality or a C
3
-C
10
aromatic functionality; R
7
and R
8
are independently at each occurrence, a halogen, a cyano functionality, a C
1
-C
20
aliphatic functionality, a C
3
-C
10
cycloaliphatic functionality or a C
3
-C
10
aromatic functionality; R
6
is a C
2
-C
20
aliphatic functionality, a C
3
-C
10
cycloaliphatic functionality or a C
3
-C
20
aromatic functionality; and “n” and “m” are each independently integers having a value of 0 to 3.
式(I)的化合物,其中R1、R2和R3在每次出现时独立地为氢、卤素、氰基、C1-C20脂肪基、C3-C10环脂肪基或C3-C20芳香基,但R1为甲基或氢时,R2和R3不为氢;R4和R5在每次出现时独立地为氢、卤素、氰基、C1-C20脂肪基、C3-C10环脂肪基或C3-C10芳香基;R7和R8在每次出现时独立地为卤素、氰基、C1-C20脂肪基、C3-C10环脂肪基或C3-C10芳香基;R6为C2-C20脂肪基、C3-C10环脂肪基或C3-C20芳香基;“n”和“m”分别独立地为0至3的整数。