20466-56-2Relevant articles and documents
Nickel-Catalyzed Selective Cross-Coupling of Chlorosilanes with Organoaluminum Reagents
Naganawa, Yuki,Guo, Haiqing,Sakamoto, Kei,Nakajima, Yumiko
, p. 3756 - 3759 (2019/09/12)
Nickel-catalyzed cross-coupling reactions of chlorosilanes with organoaluminum reagents were developed. An electron-rich Ni(0)/PCy3 complex was found to be an effective catalyst for the desired transformation. The reaction of dichlorosilanes 1 proceeded to give the corresponding monosubstituted products 2. Trichlorosilanes 4 underwent selective double substitution to furnish the corresponding monochlorosilanes 2. Overall, the selective synthesis of a series of alkylmonochlorosilanes 2 from di- and trichlorosilanes was achieved using the present catalytic systems.
Scope and selectivity of B(C6F5)3-catalyzed reactions of the disilane (Ph2SiH)2
Lee, Peter T.K.,Rosenberg, Lisa
, p. 86 - 93 (2016/04/19)
The diverse catalytic activity of the electrophilic borane B(C6F5)3 in reactions of silanes with organic substrates has been exploited extensively in studies that mostly focus on very particular, useful functional group transformations in organic synthesis. This study examines the potential for harnessing the collective, broad scope of these transformations in the preparation of new oligosilane derivatives. Borane-catalyzed hydrosilation, heterodehydrogenative coupling, and dealkylative coupling reactions of a wide range of substrates with the disilane (Ph2SiH)2 were investigated. These allowed new mono- and disubstituted disilanes to be prepared that contain Si-O, Si-S, and Si-C linkages. Challenges and opportunities are described that arise from competing "over-reduction" chemistry, and the sensitivity of the catalysis to both the Lewis basicity and steric bulk of the substrates is examined.
The Scope and Limitations of Intramolecular Radical Cyclizations of Acylsilanes with Alkyl, Aryl, and Vinyl Radicals
Chang, Sheng-Yueh,Jiaang, Weir-Torn,Cherng, Chaur-Donp,Tang, Kuo-Hsiang,Huang, Chih-Hao,Tsai, Yeun-Min
, p. 9089 - 9098 (2007/10/03)
5-Exo cyclizations of primary and secondary radicals with acylsilanes successfully give cyclopentyl silyl ethers. The corresponding 6-exo cyclizations are sensitive to changes of the size of silyl groups. Secondary radicals undergo 6-exo cyclizations with
