US 7,592,475 B2
Branched alpha-cyanostilbene fluorophores
Sooyoung Park, Seoul (Korea, Republic of); Soonki Kwon, Kyeongsangnam-Do (Korea, Republic of); and Byeongkwan An, Kyeongsangnam-Do (Korea, Republic of)
Assigned to Dongwoo Fine-Chem Co., Ltd., Chullabuk-do (Korea, Republic of); and Seoul National University Industry Foundation, Seoul (Korea, Republic of)
Appl. No. 10/520,291
PCT Filed Jun. 29, 2002, PCT No. PCT/KR02/01245
§ 371(c)(1), (2), (4) Date Dec. 29, 2004,
PCT Pub. No. WO2006/115306, PCT Pub. Date Nov. 02, 2006.
Prior Publication US 2007/0149799 A1, Jun. 28, 2007
Int. Cl. C07C 255/00 (2006.01); C09K 11/06 (2006.01)
U.S. Cl. 558—401  [558/402; 252/301.16] 3 Claims
 
1. α-cyanostilbene compounds of the formula 1:

OG Complex Work Unit Drawing
R2 and R3 denotes respectively C1-C6 alkyl, C1-C6 alkoxy, substituted or unsubstituted amino, or substituted or unsubstituted aryl, and the substituted or unsubstituted aryl can be condensed at the optional site of the corresponding two benzene rings.