We report a chelation-assisted C–H arylation of various indoles with sterically and electronically diverse (hetero)arylsilanes enabled by cost-effective Cp*-free cobaltcatalysis. Key to the success of this strategy is the judicious choice of copper(II) fluoride as a bifunctional sliane activator and catalyst reoxidant. This methodology features a broad substrate scope and good functional group compatibility
Capsule-bowl conversion triggered by a guest reaction
作者:Shitao Wang、Tomohisa Sawada、Makoto Fujita
DOI:10.1039/c6cc06551a
日期:——
A new M20L8 coordination capsule showed unique capsule-bowl conversion by a guest encapsulation/reaction.
一个新的M20L8>配位囊囊显示了通过客体包封/反应展示独特的囊-碗转化。
Pd-catalyzed desulfitative Hiyama coupling with sulfonyl chlorides
作者:Wei Zhang、Fang Liu、Ke Li、Baoli Zhao
DOI:10.1002/aoc.3139
日期:2014.5
Palladium‐catalyzed desulfitativeHiyama cross‐coupling reactions of various arylsulfonyl chlorides with aryltriethoxysilane have been achieved in good yields. The reported cross‐coupling reactions are tolerant to the common functional groups regardless of electron‐withdrawing or electron‐donating, making these transformations attractive alternatives to the traditional cross‐coupling approaches. Copyright
Reactivity of Hypervalent Species: Reactions of Anionic Penta-Coordinated Silicon Complexes towards Nucleophiles
作者:Alain Boudin、Geneviève Cerveau、Claude Chuit、Robert J. P. Corriu、Catherine Reye
DOI:10.1246/bcsj.61.101
日期:1988.1
The reactivity of anionic penta-coordinated silicon complexes [RSi(O2C6H4-o)2]−Na+ 1 with nucleophilic reagents has been studied. 1 can be reduced to organosilanes RSiH3 by metallic hydrides. Reactions with an excess of Grignard or organolithium reagents (R′MgX or R′Li) gave tetraorganosilanes RSiR′3. When only two molar equivalents of Grignard reagents (R′MgX) or lithium reagents (R′Li) are added
Cu-Catalyzed Arylation of Bromo-Difluoro-Acetamides by Aryl Boronic Acids, Aryl Trialkoxysilanes and Dimethyl-Aryl-Sulfonium Salts: New Entries to Aromatic Amides
作者:Satenik Mkrtchyan、Michał Jakubczyk、Suneel Lanka、Michael Pittelkow、Viktor O. Iaroshenko
DOI:10.3390/molecules26102957
日期:——
copper-catalyzed directarylation. Readily available and structurally simple aryl precursors such as arylboronicacids, aryl trialkoxysilanes and dimethyl-aryl-sulfonium salts were used as the source for the aryl substituents. The scope of the reactions was tested, and the reactions were insensitive to the electronic nature of the aryl groups, as both electron-rich and electron-deficient aryls were successfully