Synthesis of dibenzothiophenes by Pd-catalyzed dual C-H activation from diaryl sulfides.
Palladium-catalyzed dual C-H functionalization of diaryl sulfides to form dibenzothiophenes (DBTs) by oxidative dehydrogenative cyclization is reported. This protocol afforded various DBTs in moderate to good yields with tolerance of a wide variety of substrates. Benzo[1,2-b:4,5-b']bis[b]benzothiophene was successfully synthesized by this method, which was used as an organic semiconductor for field-effect transistors.
Institute of Homogeneous Catalysis, College of Chemistry, Sichuan University, Chengdu 610064 (P. R. China), Fax: (+86) 28-8541-2026.
Rui
R
Che
Zhiqing
Z
Wu
Zhengkai
Z
Li
Haifeng
H
Xiang
Xiangge
X
Zhou
D002384:Catalysis; D003500:Cyclization; D015394:Molecular Structure; D010084:Oxidation-Reduction; D010165:Palladium / Q000737:chemistry*; D013440:Sulfides / Q000737:chemistry*; D013876:Thiophenes / Q000737:chemistry*
D013440:Sulfides; D013876:Thiophenes; D010165:Palladium; C016366:dibenzothiophene
CH arylation; cyclization; dibenzothiophenes; diphenyl sulfides; palladium