| Autor: |
Zhang H; College of Chemistry and Chemical Engineering, Qingdao University, NingXia Road #308, Qingdao, Shandong 266071, China., Ding Y; Shandong Institute for Food and Drug Control, Jinan, Shandong 250101, P. R. China., Zhang MR; College of Chemistry and Chemical Engineering, Qingdao University, NingXia Road #308, Qingdao, Shandong 266071, China., Lu CJ; College of Chemistry and Chemical Engineering, Qingdao University, NingXia Road #308, Qingdao, Shandong 266071, China., Feng J; College of Chemistry and Chemical Engineering, Qingdao University, NingXia Road #308, Qingdao, Shandong 266071, China., Liu RR; College of Chemistry and Chemical Engineering, Qingdao University, NingXia Road #308, Qingdao, Shandong 266071, China. |
| Abstrakt: |
Herein, the palladium-catalyzed double C-N coupling of 9 H -carbazol-9-amines and 2,2'-dibromo-1,1'-biphenyl is reported. This protocol offers access to N , N '-bicarbazole scaffolds, which have frequently been used as linkers in the construction of functional covalent organic frameworks (COFs). A variety of substituted N , N '-bicarbazoles were synthesized in moderate to high yields based on this chemistry, and the potential application of this method was showcased by the synthesis of COF monomers like tetrabromide 4 and tetraalkynylate 5 . |
