申请人:Dow Global Technologies LLC
公开号:US20180127403A1
公开(公告)日:2018-05-10
A compound having a tricyclic nucleus and having formula (I)
wherein Ar is C
3
-C
25
aryl in which at least one aromatic ring atom is nitrogen; X is O, S or CR
9
R
10
; R
1
, R
2
, R
3
, R
4
, R
5
and R
6
independently are hydrogen, deuterium, C
1
-C
12
alkyl, C
4
-C
12
aryl or C
2
-C
12
alkenyl; R
7
and R
8
independently are hydrogen, deuterium, C
1
-C
12
alkyl, C
4
-C
12
aryl or C
2
-C
12
alkenyl or R
7
and R
8
groups attached to a nitrogen atom are joined by a single bond, O, S or CR
11
R
12
to form a single nitrogen-containing substituent; R
9
and R
10
independently are hydrogen, deuterium, C
1
-C
12
alkyl, C
4
-C
12
aryl or C
2
-C
12
alkenyl; and R
11
and R
12
independently are hydrogen, deuterium, C
1
-C
12
alkyl, C
4
-C
12
aryl or C
2
-C
12
alkenyl; provided that Ar does not contain an aromatic ring attached to the tricyclic nucleus which contains more than two aromatic ring nitrogen atoms.