Generation of Aryl(2-lithiophenyl)methanone<i>O</i>-Methyl Oximes and Their Use for the Synthesis of<i>N</i>-(3-Alkyl-1-aryl- or 1,3-diaryl-1<i>H</i>-isoindol-1-yl)-<i>O</i>-methylhydroxylamines<i>via</i>the Reaction with Nitriles
An efficient two‐step procedure for the preparation of a new type of 1H‐isoindoles, i.e., N‐(3‐alkyl‐1‐aryl‐ or 1,3‐diaryl‐1H‐isoindol‐1‐yl)‐O‐methylhydroxylamines 5, from readily available aryl(2‐bromophenyl)methanones 1 has been developed. Aryl(2‐bromophenyl)methanone O‐methyloximes 2, derived from the corresponding ketones, were treated with BuLi in Et2O at 0° to generate novel lithium compounds