We report Pd‐ and Ni‐catalysed, guided and regioselective CH arylations of a series of fused 3‐nitropyridines. The method described here is a facile tool for the chemical functionalisation of drug‐like fused pyridines. The scope and limitations of the reaction, the chemical potential of the nitro group and a putative reaction mechanism are discussed.
The first visible-light-promoted direct synthesis of isoflavones following the arylation of ortho-hydroxyarylenaminones by aryl onium salts was developed.
The first synthesis of 3-methoxalylchromone was described. The reaction of the latter with electron-rich aminoheterocycles afforded a set of heteroannelated pyridines bearing a CO(2)Me substituent located at the α-position of the pyridine core.
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