Dichloro[(2-dimethylamino)propyldiphenylphosphine]palladium(II) (PdCl<sub>2</sub>(alaphos)): An Efficient Catalyst for Cross-Coupling of Aryl Triflates with Alkynyl Grignard Reagents<sup>1</sup>
作者:Takashi Kamikawa、Tamio Hayashi
DOI:10.1021/jo981191f
日期:1998.11.1
Dichloro[(2-dimethylamino)propyldiphenylphosphine]palladium (PdCl2(alaphos)) was found to be much more effective as catalyst than other palladium complexes for cross-coupling of aryl triflates with alkynyl Grignard reagents. Reaction of bromoaryl triflates with alkynyl Grignard reagents in the presence of PdCl2(alaphos) catalyst gave high yields of alkynyl arene bromides, which were formed by selective replacement of triflate by alkynyl group.
Base-mediated one-pot synthesis of alkynylsilanes from terminal alkynes and chlorosilanes
作者:Jianyang Chen、Hongmei Fu、Huamei He、Shuting Liang、Xiaofeng Luo
DOI:10.1016/j.tet.2024.133823
日期:2024.2
An efficient one-pot method has been developed to synthesize alkynylsilanes from terminalalkynes by treatment with chlorosilanes and LiN(SiMe3)2. The reaction proceeded smoothly at room temperature, showing a broad substrate scope and good functional group tolerance. The practical application was demonstrated by gram-scale reaction.