products, and biologically active compounds showcase the robustness and functional‐group tolerance of the reaction. The key to the success of the reaction could be the possible formation of the strong Si−O bond via a Brook‐type rearrangement. Given its simplicity and efficiency, this ligation has the potential to unfold new applications in the areas of medicinal chemistry and chemical biology.
A ruthenium-catalyzed C–H alkenylation of aroylsilanes with electron-deficient alkenes was developed, using acylsilane as the directing group. The mild reaction conditions enable the tolerance of a wide scope of functionalities such as OMe, F, Cl, Br and CF3, providing a convenient and highly effective method for the synthesis of styrene derivatives bearing acylsilane. Steroid and heterocycles such
Preparation of substituted benzoyltrimethylsilanes by the palladium-catalyzed silylation of substituted benzoyl chlorides with hexamethyldisilane
作者:Keiji Yamamoto、Shigeaki Suzuki、Jiro Tsuji
DOI:10.1016/s0040-4039(00)77777-x
日期:1980.1
A direct preparative route to benzoyltrimethylsilane has been found by the reaction of benzoylchloride with hexamethyldisilane in the presence of a specified palladium(II) complex as catalyst.
Visible-Light-Induced Catalyst-Free Carboxylation of Acylsilanes with Carbon Dioxide
作者:Zhengning Fan、Yaping Yi、Shenhao Chen、Chanjuan Xi
DOI:10.1021/acs.orglett.1c00435
日期:2021.3.19
Intermolecular carbon–carbon bond formation between acylsilanes and carbondioxide (CO2) was achieved by photoirradiation under catalyst-free conditions. In this reaction, siloxycarbenes generated by photoisomerization of the acylsilanes added to the C═O bond of CO2 to give α-ketocarboxylates, which underwent hydrolysis to afford α-ketocarboxylic derivatives in good yields. Control experiments suggest
Currently, catalytically transferable carbenes are limited to electron-deficient and neutral derivatives, and electron-rich carbenes bearing an alkoxy group (i.e., Fischer-type carbenes) cannot be used in catalyticcyclopropanation because of the lack of appropriate carbene precursors. We report herein that acylsilanes can serve as a source of electron-rich carbenes under palladium catalysis, enabling