US 12,256,638 B2
Photoactive compound
Kiran Kamtekar, Godmanchester (GB)
Assigned to Sumitomo Chemical Co., Ltd., Tokyo (JP)
Appl. No. 17/297,997
Filed by Sumitomo Chemical Co., Ltd., Tokyo (JP)
PCT Filed Nov. 29, 2019, PCT No. PCT/GB2019/053390
§ 371(c)(1), (2) Date May 27, 2021,
PCT Pub. No. WO2020/109821, PCT Pub. Date Jun. 4, 2020.
Claims priority of application No. 1819623 (GB), filed on Nov. 30, 2018.
Prior Publication US 2021/0399235 A1, Dec. 23, 2021
Int. Cl. H01L 51/00 (2006.01); C07D 495/04 (2006.01); G01N 21/64 (2006.01); H10K 85/60 (2023.01); H10K 30/30 (2023.01); H10K 71/15 (2023.01); H10K 71/40 (2023.01)
CPC H10K 85/6576 (2023.02) [C07D 495/04 (2013.01); G01N 21/645 (2013.01); H10K 85/6572 (2023.02); H10K 30/30 (2023.02); H10K 71/15 (2023.02); H10K 71/441 (2023.02)] 19 Claims
 
1. A compound of formula (Ia):

OG Complex Work Unit Chemistry
wherein:
Ar is furan, thiophene, thienothiophene, or benzene, which is unsubstituted or substituted with one or more substituents;
each Y is independently O or S;
each A is independently O, S, or CR1R2, wherein R1 and R2 independently in each occurrence is a substituent;
each R4-R9 is independently H or a substituent;
p is 0, 1, 2, or 3;
q is 0, 1, 2, or 3;
Z1 is a direct bond or, together with R4 or R5, forms an aromatic or heteroaromatic group Ar1;
Z2 is a direct bond or, together with R7 or R8, forms an aromatic or heteroaromatic group Ar2;
Z3 is a direct bond or, together with R6, forms an aromatic or heteroaromatic group Ar3;
Z4 is a direct bond or, together with R9, forms an aromatic or heteroaromatic group Ar4;
R10 in each occurrence is H or a substituent; and
each X1-X4 is independently CR11 or N, wherein R11 in each occurrence is H or a substituent, with the proviso that at least one occurrence of at least one of X1-X4 is N.