Reduction of Allylpalladium(II)chloride Dimer by Formation of Allyloxysilanes
作者:Scott Denmark、Russell Smith
DOI:10.1055/s-2006-951516
日期:2006.11
The reduction ofallylpalladium(II)chloride dimer (APC) to a Pd(0) species can be effected by reaction with alkali metal silanolates. The reduction is extremely rapid in the presence of chelating bisphosphine ligands and for a variety of silanolates.
烯丙基氯化钯 (II) 二聚体 (APC) 还原为 Pd(0) 物质可以通过与碱金属硅烷醇盐反应来实现。在螯合双膦配体和各种硅烷醇化物存在的情况下,还原速度非常快。
Convergence of Mechanistic Pathways in the Palladium(0)-Catalyzed Cross-Coupling of Alkenylsilacyclobutanes and Alkenylsilanols
作者:Scott E. Denmark、Daniel Wehrli、Jun Young Choi
DOI:10.1021/ol006170y
日期:2000.8.1
[GRAPHICS]Alkenylsilacyclobutenes and alkenylsilanols react in palladium-catalyzed cross coupling reactions via the same intermediate, produced in situ upon treatment of either starting material with tetrabutylammonium fluoride.
Fluoride-Promoted Cross-Coupling Reactions of Alkenylsilanols. Elucidation of the Mechanism through Spectroscopic and Kinetic Analysis
作者:Scott E. Denmark、Ramzi F. Sweis、Daniel Wehrli
DOI:10.1021/ja037234d
日期:2004.4.1
The mechanism of the palladium-catalyzed cross-coupling reaction of (E)-dimethyl-(1-heptenyl)silanol ((E)-1) and of (E)-diisopropyl-(1-heptenyl)silanol ((E)-2) with 2-iodothiophene has been investigated through spectroscopic and kinetic analysis. A common intermediate in cross-coupling reactions of several types of organosilicon precursors has been identified as a hydrogen-bonded complex between tetrabutylammonium