Boronic esters have long been considered as poor partners in cross-coupling reactions with arene diazoniums. Here is reported an unprecedented application of self-activated boronic esters in a base-free cross-coupling reaction with diazonium salts under mild and user friendly conditions.
Suzuki–Miyaura Coupling of Aryl Nosylates with Diethanolamine Boronates
作者:Philipp Kohler、Timothé Perrin、Gabriel Schäfer
DOI:10.1055/a-2107-5307
日期:2023.10
gained popularity as substrates for Suzuki–Miyauracouplings due to their ease of handling as crystalline, bench-stable solids. Similarly, 4-nitrobenzenesulfonate esters (nosylates), derived from the parent phenols, also possess the advantage of being highly crystalline and stable. Herein, we describe the development of suitable reaction conditions for the Suzuki–Miyaura cross-coupling of DABO boronates
Boronic acids and esters are well known substrates for the Suzuki-Miyaura cross-coupling. Yet their isolation can sometimes be tedious. We report here that the use of aryl dioxazaborocanes afford a simple isolation procedure while keeping a high efficiency in the cross-coupling process. (C) 2011 Published by Elsevier Ltd.