Angew.Chem.Int.Ed.2014,53,14533~14537含有syn-β-H的烷基金属有机化合物容易发生β-H消除而生成相应的烯烃,是金属有机化学中常见的基元反应之一,也是Heck反应的基础.因此,在金属有机化学基础教科书中,一般都将该类化合物视为高活性或不稳定金属有机中间体,并将β-H消除视为其必然发生的反应.但是,该“常识” Angew.Chem.Int.Ed.2014,53,14533 ~ 14537 Alkyl metal organic compounds containing syn-β-H are susceptible to β-H elimination to form the corresponding alkenes, which are the common elementary reactions in metal-organic chemistry One is also the basis of the Heck reaction, and therefore, in the basic textbooks of organometallic chemistry, these compounds are generally considered as highly active or unstable metal organic intermediates and β-H elimination is considered as their inevitable reaction. However, the “common sense”