4131-46-8Relevant academic research and scientific papers
Tuning the Selectivity of AuPd Nanoalloys towards Selective Dehydrogenative Alkyne Silylation
Wissing, Maren,Studer, Armido
supporting information, p. 5870 - 5874 (2019/03/21)
The cross-dehydrogenative coupling of terminal alkynes and hydrosilanes catalyzed by AuPd nanoalloys is described. Metal nanoparticles are readily prepared in 15 minutes from commercially available and cheap starting materials by using a photochemical app
METHOD FOR PRODUCING ORGANOSILICON COMPOUND USING HALOSILANE AS RAW MATERIAL
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Paragraph 0039-0041; 0055, (2019/12/10)
PROBLEM TO BE SOLVED: To provide a novel method for producing an organosilicon compound. SOLUTION: The method for producing an organosilicon compound includes a reaction step (I) of reacting a halosilane represented by formula (a) with a compound containing a hydrocarbon group represented by formula (b) in the presence of an organic base to generate an organosilicon compound represented by formula (c). (In the formula (I), n is an integer of 0-3; each R1 independently represents a hydrogen atom or a C1-20 hydrocarbon group which may contain a heteroatom; X represents a bromo group (-Br) or a chloro group (-Cl); and R2 represents a compound containing a hydrocarbon group.) SELECTED DRAWING: Figure 1 COPYRIGHT: (C)2020,JPOandINPIT
Nickel-Catalyzed Decarboxylative C–Si Bond Formation: A Regioselective Cross-Coupling Between Trialkyl Silanes and α,β-Unsaturated Carboxylic Acids
Allam, Bharat Kumar,Azeez, Sadaf,Kandasamy, Jeyakumar
, (2019/08/26)
This report presents the first example of nickel-catalyzed mild decarboxylative cross-coupling reaction for the regioselective formation of C–Si bond. An easily accessible and significantly stable Ni (dmg)2 owes the role of key promoter. This r
Palladium(II) complex for catalyzing sonogashira coupling reactions and a method thereof
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Page/Page column 19; 20, (2017/02/09)
A palladium(II) complex which catalyzes the Sonogashira coupling reaction efficiently under aerobic condition and a method of employing the palladium(II) complex to synthesize internal alkynes. The palladium(II) complex is an effective catalyst for the co
Cyclopropenation of internal alkynylsilanes and diazoacetates catalyzed by copper(i) N-heterocyclic carbene complexes
Thomas, Thomas J.,Merritt, Benjamin A.,Lemma, Betsegaw E.,McKoy, Adina M.,Nguyen, Tri,Swenson, Andrew K.,Mills, Jeffrey L.,Coleman, Michael G.
supporting information, p. 1742 - 1747 (2016/02/10)
Copper(i) N-heterocyclic carbene (CuNHC) complexes are more catalytically active than traditional transition metal salts for the cyclopropenation of internal alkynylsilanes and diazoacetate compounds. A series of 1,2,3-trisubstituted and 1,2,3,3-tetrasubstituted cyclopropenylsilane compounds were isolated in good overall yields. An interesting regioselective and chemodivergent reaction pathway was also observed to furnish a tetra-substituted furan for an electron-rich donor/acceptor diazoacetate. Finally, a practical synthesis of a cyclopropenyl-containing starting material that is useful for bioorthogonal chemistry is also described.
Synthesis of functionalized alkynes via palladium-catalyzed Sonogashira reactions
Ibrahim, Mansur B.,Ali, Bassam El,Malik, Imran,Fettouhi, Mohammed
, p. 554 - 558 (2016/01/20)
A highly efficient protocol for the copper and phosphine free Sonogashira cross-coupling reactions of aryl iodides with terminal alkynes under aerobic conditions has been developed. Using 1 mol % of the palladium-bis(oxazoline) complex, Pd-BOX A, in the p
A Free-Radical-Promoted Stereospecific Decarboxylative Silylation of α,β-Unsaturated Acids with Silanes
Zhang, Lizhi,Hang, Zhaojia,Liu, Zhong-Quan
supporting information, p. 236 - 239 (2016/01/25)
A stereospecific decarboxylative silylation of acrylic and propiolic acids with silanes was developed. This reaction represents the first example of decarboxylative C-Si bond formation and provides an efficient and convenient approach to various synthetically useful alkenyl and alkynyl organosilicon compounds through the reaction of α,β-unsaturated acids with silanes. Spin-trapping and EPR experiments support a radical addition/elimination process.
Regioselective synthesis of multisubstituted benzenes by palladium-catalyzed intermolecular reaction of β-iodo-β-silylstyrenes with alkynes
Kinoshita, Hidenori,Takahashi, Hirotoshi,Miura, Katsukiyo
supporting information, p. 2962 - 2965 (2013/07/26)
The Pd-catalyzed reaction between β-iodo-β-silylstyrenes and terminal alkynes in i-Pr2NEt gave 1,2,3,5-tetrasubstituted benzenes with complete regioselection. The use of certain silylacetylenes as alkynes enabled efficient synthesis of 1,3,5-trissilyl-2-arylbenzenes, which could be transformed into other multisubstituted benzenes by displacement of the silyl groups.
Tuning the solid-state luminescence of bodipy derivatives with bulky arylsilyl groups: Synthesis and spectroscopic properties
Lu, Hua,Wang, Qiuhong,Gai, Lizhi,Li, Zhifang,Deng, Yuan,Xiao, Xuqiong,Lai, Guoqiao,Shen, Zhen
, p. 7852 - 7861 (2012/09/07)
Boron dipyrromethenes (BODIPYs) with bulky triphenylsilylphenyl(ethynyl) and triphenylsilylphenyl substituents on pyrrole sites were prepared via Hagihara-Sonogashira and Suzuki-Miyaura cross-coupling with ethynyl-terminated tetraphenylsilane and boronic acid-terminated tetraphenylsilane. The chromophores are designed to prevent intermolecular p-p stacking interaction and enhance fluorescence in the solid state. Single crystals of 1a and 2b for X-ray structural analysis were obtained, and weak p-p stacking interactions of the neighboring BODIPY molecules were observed. Spectroscopic properties of all of the dyes in various solvents and in films were investigated. Triphenylsilylphenyl-substituted BODIPYs generally show more pronounced increases in solid-state emission than triphenylsilylphenyl(ethynyl)-substituted BODIPYs. Although the simple BODIPYs do not exhibit any fluorescence in the solid state (F=0), arylsilyl-substituted BODIPYs exhibit weak to moderate solid-state fluorescence with quantum yields of 0.03, 0.07, 0.10, and 0.25. The structure-property relationships were analyzed on the basis of X-ray crystallography, optical spectroscopy, cyclic voltammetry, and theoretical calculations.
Copper- and base-free Sonogashira-type cross-coupling reaction of triarylantimony dicarboxylates with terminal alkynes under an aerobic condition
Wang, Xuan,Qin, Weiwei,Kakusawa, Naoki,Yasuike, Shuji,Kurita, Jyoji
experimental part, p. 6293 - 6297 (2010/01/18)
A simple copper- and base-free palladium-catalyzed Sonogashira-type cross-coupling by the use of triarylantimony dicarboxylates is described. Reaction of triarylantimony diacetates with terminal alkynes in the presence of 1 mol % of PdCl2(PPhs
