An Effective Bismuth-Catalyzed Benzylation of Arenes and Heteroarenes
作者:Magnus Rueping、Boris J. Nachtsheim、Winai Ieawsuwan
DOI:10.1002/adsc.200606068
日期:2006.6
A highly efficient Bi(OTf)3-catalyzed benzylation of arenes and heteroarenes has been developed. The mild reaction conditions, high yields, operational simplicity and practicability, broad scope, and remarkably low catalyst loading render this environment friendly process an attractiv approach to diarylmethane derivatives. The extension to an intramolecular variant of this procedure provides a valuable
Gold(I)-catalyzed Benzylation of (Hetero)aryl Boronic Acids with (Hetero)benzyl Bromides by the Strategy of a S<sub>N</sub>2-type Reaction
作者:Wenqing Zang、Yin Wei、Min Shi
DOI:10.1002/asia.201800923
日期:2018.10.4
gold‐catalyzed benzylation of (hetero)aryl boronic acids with (hetero)benzylbromides to give the corresponding cross‐coupling products in moderate to good yields is reported. The reaction proceeds through a possible intermolecular SN2‐type reaction pathway to give a wide variety of di(hetero)arylmethanes as the desired products. An intriguing reaction mechanism has been proposed on the basis of control experiments
在此,报道了第一个用(杂)苄基溴对(杂)芳基硼酸进行金催化的苄基化反应,以得到中等至良好收率的相应交叉偶联产物的实例。反应通过可能的分子间S N 2型反应路径进行,从而得到各种所需的二(杂)芳基甲烷。在控制实验,31 P-NMR光谱检测和DFT计算的基础上,提出了一种有趣的反应机理。
BENZYLATIONS AND ALLYLATIONS IN THE PRESENCE OF ZINC CHLORIDE