18769-86-3

Usage

Uses

Used in Organic Electronics:
Tetrakis(phenylethynyl)silane is used as a precursor for synthesizing silicon-containing polymers and materials, which are essential components in organic electronics due to their electronic and optical properties.
Used in Optoelectronics:
tetrakis(phenylethynyl)silane serves as a building block for creating materials with desirable electronic and optical properties, making it useful in the development of optoelectronic devices.
Used in Novel Functional Materials:
Tetrakis(phenylethynyl)silane is utilized as a precursor in the synthesis of innovative functional materials, which can have a wide range of applications across various industries.
It is important to handle tetrakis(phenylethynyl)silane with care due to its reactivity and potential hazards, ensuring safety during its use in research and industrial applications.

InChI:InChI=1/C32H20Si/c1-5-13-29(14-6-1)21-25-33(26-22-30-15-7-2-8-16-30,27-23-31-17-9-3-10-18-31)28-24-32-19-11-4-12-20-32/h1-20H

Upstream product

• 1122-79-8 potassium phenylacetylide 
• 536-74-3 phenylacetylene 
• 4440-01-1 lithium phenylacetylide 

Downstream Products

• 150479-86-0 2,7-bis(diethylboryl)-3,8-diethyl-1,4,6,9-tetraphenyl-5-silaspiro{4.4}nona-1,3,6,8-tetraene 
• 150479-87-1 3-(diethylboryl)-4-ethyl-2,5-diphenyl-1,1-bis(phenylethinyl)silol 

Relevant academic research and scientific papers

Synthesis of carbosilane dendrimers based on tetrakis(phenylethynyl)silane

Carbosilane dendrimers of first to third generation were synthesized, using alkynylation/hydrosilation cycles with lithium phenylacetylide and dichloromethylsilane as building blocks and tetrakis(phenylethynyl)silane as a core molecule. The analysis of th

Zn(OTf)2/i-Pr2NEt promoted synthesis of tetraalkynylsilanes

An efficient method is reported for the synthesis of tetraalkynylsilanes via the Zn(OTf)2/i-Pr2NEt promoted reaction of silicon tetrachloride with different 1-alkynes.

METHOD FOR PRODUCING ORGANOSILICON COMPOUND USING HALOSILANE AS RAW MATERIAL

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

Alkynylsilanes and alkynyl(vinyl)silanes. synthesis, molecular structures and multinuclear magnetic resonance study

Alkynylsilanes bearing one to four alkynyl groups at silicon, with organyl groups (Me, Ph, Vin), H, Cl at silicon, and with substituents H, nBu, tBu, Ph, C6H4-4-Me, 3-thienyl, CH 2NMe2 at t

Synthesis of some di- and tricyclic silaalkanes

The mono-, di- and spirocyclic silaalkanes 5, 6 and 9/10 are readily prepared from the di- and tetraallylsilanes 4 and 8 respectively by Cp2Zr induced ring forming reactions. The diallylsilole 16 reacts at 0°C and in presence of an excess of Cp2Zr to the tricyclic compound 19 whereas the silaspiro[4.4]nonadienes 21 and 22 are formed at room temperature. High stereoselectivity is observed in all of these Cp2Zr induced cyclization reactions.

Organosubstituted 1,1'-Spirobisiloles and 1,1'-Spirobigermoles by Fourfold Organoboration of Tetra-1-alkynylsilanes and -germanes

Si(CCR)4 R)4 nonatetraenes via the mono- and bisethyloboration compounds 3 or 4 (e.g. 3b, 4c) with different rates: Ge >> Si; Me > Ph.For comparison, compounds Sn(CR)4 react with Et3B in the absence of a solvent to mixtures of various spirotin compounds (5f, 5g, 6f, 8f, 9g, 10g, 11g) of which only 9g (R = Ph) corresponds to the spirosilanes and -germanes.This is the result of effective competition between intramolecular and intermolecular organoboration in the case of the tetra-1-alkynyltin compounds.The protodeborylation of 1a, b and 2d, e with MeCO2H leads to 12a, b and 13d, e, respectively. 12a isomerises by UV irradiation to allyl isomers 12a'.From 12a with 2 equiv. of maleic anhydride the 1:2 addition compound 14a is obtained, the autaddition of 12a, d leads to 15a, d.Spiro compound 12a reacts with (OC)5Fe or CpCo(C2H4)2 to give the cyclodiastereomeric η4-complexes 2-12a (16a1-a4; X-ray structure analysis of meso-16a1), (OC)3Fe-12a (17a) and (CpCo)2-12a (18a1-a4). - All products were characterized by multinuclear NMR, including measurements of the coupling constants 1J(13C13C), 2J(29Si29Si), nJ(29Si13C) and nJ(119Sn13C). Key Words: Silanes, tetra-1-alkynyl- / Germanes, tetra-1-alkynyl- / 1,1-Ethyloboration, intermolecular / 1,1-Vinyloboration, intramolecular / Spirosilanes / Spirogermanes / Protodeborylation / Transition metals, η4-complexes of