Indolo-quinoline boron difluoride dyes: synthesis and spectroscopic properties.
Novel indolo-quinoline compounds were efficiently prepared via a Povarov-type reaction, and the structures were further modified by a Suzuki coupling reaction. The corresponding BF2-rigidified complexes were prepared and their spectroscopic properties were characterized with large Stokes shifts (up to 211 nm) and up to near-infrared (NIR) wavelength (667 nm). The synthetic complexes could be used as new fluorescent dyes.
State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, and Center for Molecular and Translational Medicine, Peking University, Xue Yuan Road No. 38, Beijing 100191, China. xinshan@bjmu.edu.cn and State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
Hui-Xin
HX
Luo
State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, and Center for Molecular and Translational Medicine, Peking University, Xue Yuan Road No. 38, Beijing 100191, China. xinshan@bjmu.edu.cn.
Youhong
Y
Niu
State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
Xiaojie
X
Jin
State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
Xiao-Ping
XP
Cao
State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
Xiaojun
X
Yao
State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, and Center for Molecular and Translational Medicine, Peking University, Xue Yuan Road No. 38, Beijing 100191, China. xinshan@bjmu.edu.cn.
Xin-Shan
XS
Ye