A convenient procedure has been developed for the preparation of Group14 compounds by integrated palladium‐catalyzed cross‐coupling of aromatic iodides with the corresponding Group14hydrides in the presence of a base. The reaction conditions can be applied to the cross‐coupling of tertiary, secondary, and primary Group14 compounds. In most cases, the desired arylated products were obtained in synthetically
Monohydrosilanes can be prepared selectively in high yields from the reaction of various aryl and alkyl iodides with ytterbium metal followed by the reaction with dihydrosilanes.
The reduction of diaryliodonium trifluoromethanesulfonates with low-valent ytterbium and samarium reagents has been studied. In the reaction of diphenyliodonium trifluoromethanesulfonate with two equimolar amounts of metallic ytterbium, benzene is formed almost quantitatively. On the other hand, iodobenzene is produced together with benzene in the reaction with divalent YbI2 or SmI2. The intermediates
Nickel‐Catalyzed Reductive C(sp
<sup>2</sup>
)−Si Coupling of Chlorohydrosilanes via Si−Cl Cleavage
作者:Zhen‐Zhen Zhao、Xiaobo Pang、Xiao‐Xue Wei、Xue‐Yuan Liu、Xing‐Zhong Shu
DOI:10.1002/anie.202200215
日期:2022.5.16
C−Si bond-forming reaction between R−X and Cl−Si(H)R2 was achieved using reductive nickel catalysis. This method offers access to structurally diverse aryl- and alkenylhydrosilanes from phenol and ketonederivatives. The reaction can be conducted on gram scale and allows for incorporating a hydrosilane moiety into biologically active molecules.