Palladium-Catalyzed Decarboxylative Coupling of Potassium Nitrophenyl Acetates with Aryl Halides
作者:Rui Shang、Zheng Huang、Ling Chu、Yao Fu、Lei Liu
DOI:10.1021/ol201750s
日期:2011.8.19
A palladium-catalyzeddecarboxylative cross-coupling of potassium 2- and 4-nitrophenyl acetates with aryl chlorides and bromides has been developed. Because the nitro group can be readily converted to many other functional groups, the new reaction provides a useful method for the preparation of diverse 1,1-diaryl methanes and their derivatives.
Nitrogen–Iodine Exchange of Diaryliodonium Salts: Access to Acridine and Carbazole
作者:Ming Wang、Qiaoling Fan、Xuefeng Jiang
DOI:10.1021/acs.orglett.7b03564
日期:2018.1.5
A nitrogen iodine exchange protocol of diaryliodonium salts with sodium azide salt is developed for general construction of significant functional acridines and carbazoles, in which introduction of nitrogen at a late stage was successfully established avoiding heteroatom incompatibility. Inorganic sodium azide served as the sole nitrogen atom source in this transformation. The diversiform functional acridines and carbazoles were comprehensively achieved through annulated diaryliodonium salts, respectively. Notably, Acridine orange (a fluorescent indicator for cell lysosomal dye) and Carprofen (a non steroidal anti-inflammatory drug) were efficiently established through this protocol.