Journal Article10.1038/NCHEM.2417
Conversion of alkanes to linear alkylsilanes using an iridium–iron-catalysed tandem dehydrogenation–isomerization–hydrosilylation
Xiangqing Jia,Zheng Huang +1 more
188
TL;DR: A well-defined, dual-catalyst system for one-pot, two-step alkane silylations that exhibits exclusive regioselectivity for the production of terminally functionalized alkylsilanes is reported.
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Abstract: The conversion of inexpensive, saturated hydrocarbon feedstocks into value-added speciality chemicals using regiospecific, catalytic functionalization of alkanes is a major goal of organometallic chemistry. Linear alkylsilanes represent one such speciality chemical-they have a wide range of applications, including release coatings, silicone rubbers and moulding products. Direct, selective, functionalization of alkanes at primary C-H bonds is difficult and, to date, methods for catalytically converting alkanes into linear alkylsilanes are unknown. Here, we report a well-defined, dual-catalyst system for one-pot, two-step alkane silylations. The system comprises a pincer-ligated Ir catalyst for alkane dehydrogenation and an Fe catalyst that effects a subsequent tandem olefin isomerization-hydrosilylation. This method exhibits exclusive regioselectivity for the production of terminally functionalized alkylsilanes. This dual-catalyst strategy has also been applied to regioselective alkane borylations to form linear alkylboronate esters.
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Citations
Salt‐Stabilized Silylzinc Pivalates for Nickel‐Catalyzed Carbosilylation of Alkenes
TL;DR: In this paper , solid and salt-stabilized silylzinc pivalates were obtained via transmetalation with Zn(OPiv)2 and showed enhanced air and moisture stability.
Catalytic Alkane Transfer Dehydrogenation by PSP-Pincer-Ligated Ruthenium. Deactivation of an Extremely Reactive Fragment by Formation of Allyl Hydride Complexes
Xiaoguang Zhou,Santanu Malakar,Tian Zhou,Sathiyamoorthy Murugesan,Carlos Huang,Thomas J. Emge,Karsten Krogh-Jespersen,Alan S. Goldman +7 more
TL;DR: In this article, the neutral 2,7-di-tert-butyl-4,5-bis(diisopropylphosphino)-9,9-dimethylthioxanthene (iPrxanPSP) pincer ligand and several Ru complexes thereof were synthesized.
Palladium-Catalyzed Inward Isomerization Hydroaminocarbonylation of Alkenes.
Xian-Jin Zou,Zhao-Xing Jin,Huiyun Yang,Fei Wu,Zhi-Hui Ren,Zheng-Hui Guan +5 more
- 15 Apr 2024
TL;DR: Palladium-catalyzed inward isomerization-hydroaminocarbonylation of alkenes enables the formation of α-aryl carboxylic amides in high yields and high site-selectivities.
Terminal C(sp3)H alkylation of internal alkenes via Ni/H-catalyzed isomerization
TL;DR: An efficient nickel-catalyzed reductive relay cross-coupling of internal alkenes with alkyl (or aryl) halides has been developed and could be applied to the terminal-selective alkylation of isomeric mixtures of internalAlkenes.
Synthesis of [1,3]-thiasilolanes <i>via</i> rare-earth-catalysed intramolecular α-C(sp <sup>3</sup> )–H silylation of alkyl sulphides with hydrosilanes
Kun An,Mengqing Liu,Jingxia Wang,Masayoshi Nishiura,Xuefeng Cong,Zhaomin Hou,Kun An,Mengqing Liu,Jingxia Wang,Masayoshi Nishiura,Xuefeng Cong,Zhaomin Hou +11 more
Abstract: The intramolecular α-C(sp 3 )–H silylation of alkyl sulphides with hydrosilanes has been achieved for the first time by half-sandwich rare-earth catalysts, affording a new family of heterocyclic [1,3]-thiasilolanes.
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