Practical and efficient applications of novel dioxaborolanes and dioxaborinanes in the synthesis of corresponding boronates and their use in the palladium-catalyzed cross coupling reactions
作者:Malgorzata Myslinska、Glenn L. Heise、Dana J. Walsh
DOI:10.1016/j.tetlet.2012.03.048
日期:2012.6
from the reaction of dioxaborolanes and dioxaborinanes with either organolithium or organomagnesium reagents are investigated along with their subsequent use in the palladium cross coupling reaction. The intrinsic stability of these cyclic esters contributes to their facile reaction with both lithium and magnesium nucleophiles at mild and safe conditions. We have found that many of the reactions proceed
研究了由二氧杂硼烷和二氧杂硼烷酮与有机锂或有机镁试剂反应生成的硼酸盐的合成方法,以及它们随后在钯交叉偶联反应中的应用。这些环酯的固有稳定性有助于它们在温和和安全的条件下与锂和镁亲核试剂轻松反应。我们发现许多反应是在室温下进行的,这是对传统的需要低温的途径的重大改进。描述了这些反应的范围及其在大规模过程合成中的实际应用。