annulation;
C-H activation;
diketopyrrolopyrroles;
polyaromatic hydrocarbons;
ruthenium;
CATALYZED OXIDATIVE COUPLING/CYCLIZATION;
NEAR-INFRARED DYES;
BOND FUNCTIONALIZATIONS;
CONJUGATED POLYMERS;
DIRECT ARYLATION;
BUILDING-BLOCKS;
SMALL MOLECULES;
FLUORESCENT;
CLEAVAGE;
COLOR;
D O I:
10.1002/chem.201905023
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
The widespread applications of substituted diketopyrrolopyrroles (DPPs) call for the development of efficient methods for their modular assembly. Herein, we present a pi-expansion strategy for polyaromatic hydrocarbons (PAHs) by C-H activation in a sustainable fashion. Thus, twofold C-H/N-H activations were accomplished by versatile ruthenium(II)carboxylate catalysis, providing step-economical access to diversely decorated fluorogenic DPPs that was merged with late-stage palladium-catalyzed C-H arylation on the thus-assembled DPP motif.
引用
收藏
页码:16246 / 16250
页数:5
相关论文
共 94 条
[1]
Ackermann L., 2009, ANGEW CHEM, V121, P9976, DOI DOI 10.1002/ANGE.200902996