New aspects of platinum-catalyzed hydrosilylation of disilylethynes

Suzuki, Toshio; Lo, Peter Y.

doi:10.1016/0022-328x(90)80152-p

Cited by 19 publications

(3 citation statements)

References 3 publications

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“…These monoalkenylated thiophenes ( 1 − 3 ) were then converted to the desired substituted thiophenes ( 8 − 11 ) via hydrosilylation reaction using Karstedt catalyst (1,3-divinyl-1,1,3,3-tetramethyldisiloxaneplatinum(0) (Pt(dvtms))) with silanes 4 − 7 . The latter were synthesized by Grignard coupling reactions, according to a literature procedure beforehand . Alkylated thiophenes 8 − 11 were then lithiated at the remaining free α-position with n -BuLi, stannylated by trimethyltin chloride, and then coupled with 2-bromothiophene by a Stille-type reaction, using tetrakis(triphenylphosphane)palladium(0) as a catalyst, to obtain the alkylated bithiophenes 16 − 19 (see Scheme ).…”

Section: Resultsmentioning

confidence: 99%

“…Tetrahydrofuran (THF), toluene, and n -hexane were dried over sodium and stored under argon. 6-bromo-1-hexene, 11-bromo-1-undecene, 2-chloromethylthiophene, hexyldimethylsilane, (2-ethylhexyl)dimethylsilane, dimethylundecylsilane, 2-allylthiophene, and 1,2-bis(2-(5-bromothien-2-yl)-1,3-dioxolan-2-yl)ethane were prepared according to the literature. 1 H NMR and 13 C NMR spectra were recorded at room temperature, if not otherwise mentioned, on a Bruker AMX 400 and Bruker AMX 500.…”

Section: Methodsmentioning

confidence: 99%

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Fine Tuning of Solid-State Properties of Septithiophenes by Tailoring the Substituents

et al. 2010

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A series of five R,ω-substituted septithiophenes, which differ in the geometry of the peripheral branched alkyl substitutents, is presented. The position of the branching point has a substantial effect on the solubility and melting points of the oligomers. In contrast, organic field-effect transistors (OFETs) that have been prepared from those materials via vapor deposition show all mobilities in the same range (0.18-0.018 cm 2 V -1 s -1 ). The relative unsusceptibility of the mobilities on the molecular structure is attributed to the fact that all septithiophenes form smectic-like structures at room temperature under solid-state conditions, as revealed by temperature-dependent X-ray diffraction. Furthermore, four of the five oligomers exhibit thermotropic liquid crystalline smectic C phases. Strong interactions between the thiophene cores are assumed as driving forces for those structural features. Thus, tailoring the peripheral substituents makes it possible to fine-tune the thermal and solubility properties and, to a certain extent, the ordering under solid-state conditions. The ordering and the electrical properties are mainly dominated by the length of the core of the oligothiophenes.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Fine Tuning of Solid-State Properties of Septithiophenes by Tailoring the Substituents

et al. 2010

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“…The presence of silylalkynyl moiety attached to the SQ’s core may play an interesting application function. Some possible reaction paths for their further use are presented in Scheme …”

Section: Introductionmentioning

confidence: 99%

Synthesis of (Multi)Silylalkynyl-Substituted Silsesquioxanes Obtained via Silylative Coupling Reaction

et al. 2019

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In the view of the fact that catalytic routes to design functionalized silsesquioxanes are currently of high importance, herein we report the effective functionalization procedure to obtain mono-, di-, and tetrasilylalkynylsubstituted silsesquioxanes of cubic T 8 and DDSQ type. The synthetic methodology is based on Ru-hydride complex that turned out to be an efficient catalyst for silylative coupling of ethynylsiloxysubstituted silsesquioxanes with vinylsilanes resulted in their silylalkynyl analogues. The ethynylsiloxysubstituted double-decker silsesquioxanes have been noted to be reactive in this process for the first time. A series of novel compounds were obtained, isolated, and characterized. Due to the presence of silylalkynyl moieties, they constitute an interesting family of Si−O−Si-based unique structures with potential applications.

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Recent Advances in the Hydrosilylation and Related Reactions

Ojima

Zhu

2009

Patai's Chemistry of Functional Groups

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Introduction Hydrosilylation of Alkenes Hydrosilylation of Alkynes Hydrosilylation of Carbonyl and Related Compounds Asymmetric Hydrosilylation Syntheses of Silicon‐Containing Dendrimers and Polymers Using Hydrosilylation Silylcarbonylation and Silylcarbocyclization Reactions

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New aspects of platinum-catalyzed hydrosilylation of disilylethynes

Cited by 19 publications

References 3 publications

Fine Tuning of Solid-State Properties of Septithiophenes by Tailoring the Substituents

Fine Tuning of Solid-State Properties of Septithiophenes by Tailoring the Substituents

Synthesis of (Multi)Silylalkynyl-Substituted Silsesquioxanes Obtained via Silylative Coupling Reaction

Recent Advances in the Hydrosilylation and Related Reactions

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