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123640-93-7

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123640-93-7 Usage

Description

4,4'-Bis(triethoxysilyl)-1,1'-biphenyl (BTESB) is an organic compound that possesses unique properties due to its molecular structure, which includes a biphenyl core with two triethoxysilyl groups attached to the 4,4' positions. 4 4'-BIS(TRIETHOXYSILYL)-1 1'-BIPHENYL is known for its potential applications in various fields, particularly in the synthesis of advanced materials and as an indicator for chirality.

Uses

Used in Chemical Synthesis:
4,4'-Bis(triethoxysilyl)-1,1'-biphenyl is used as a precursor for the synthesis of various advanced materials, such as helical silica nanotubes and nanoribbons, biphenyl-bridged alkoxysilane-based crosslinked polyalkoxysilanes, and biphenylene-bridged silsesquioxane thin films. The compound's unique structure allows for the creation of materials with specific properties and applications.
Used in Material Science:
In the Material Science industry, 4,4'-Bis(triethoxysilyl)-1,1'-biphenyl is used as a precursor for the development of novel materials with enhanced properties. These materials can be utilized in various applications, such as coatings, adhesives, and composites, due to their improved mechanical, thermal, and chemical resistance.
Used in Nanotechnology:
4,4'-Bis(triethoxysilyl)-1,1'-biphenyl is used as a precursor in the synthesis of helical 4,4'-biphenylene-silica nanotubes and nanoribbons. These nanostructures have potential applications in fields such as electronics, sensors, and drug delivery systems, due to their unique properties and high surface area.
Used in Analytical Chemistry:
In the Analytical Chemistry industry, 4,4'-Bis(triethoxysilyl)-1,1'-biphenyl is used as an indicator to determine the chirality of helical silica nanotubes. The compound's ability to interact with these nanostructures allows for the assessment of their structural properties, which is crucial for their potential applications in various fields.
Used in Sol-Gel Processing:
4,4'-Bis(triethoxysilyl)-1,1'-biphenyl is used as a precursor in the sol-gel method to produce biphenylene-bridged silsesquioxane thin films. These films have potential applications in the development of optical devices, sensors, and protective coatings due to their unique optical and mechanical properties.

Check Digit Verification of cas no

The CAS Registry Mumber 123640-93-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,6,4 and 0 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 123640-93:
(8*1)+(7*2)+(6*3)+(5*6)+(4*4)+(3*0)+(2*9)+(1*3)=107
107 % 10 = 7
So 123640-93-7 is a valid CAS Registry Number.

123640-93-7 Well-known Company Product Price

  • Brand
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  • Detail
  • Aldrich

  • (638102)  4,4′-Bis(triethoxysilyl)-1,1′-biphenyl  95%

  • 123640-93-7

  • 638102-1G

  • 587.34CNY

  • Detail
  • Aldrich

  • (638102)  4,4′-Bis(triethoxysilyl)-1,1′-biphenyl  95%

  • 123640-93-7

  • 638102-10G

  • 2,919.15CNY

  • Detail

123640-93-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name 4,4'-Bis(triethoxysilyl)-1,1'-biphenyl

1.2 Other means of identification

Product number -
Other names 4,4'-Bis(triethoxysilyl)biphenyl

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:123640-93-7 SDS

123640-93-7Synthetic route

tetraethoxy orthosilicate
78-10-4

tetraethoxy orthosilicate

4-(4-bromophenyl)bromobenzene
92-86-4

4-(4-bromophenyl)bromobenzene

4,4'-bis(triethoxysilyl)-1,1'-biphenyl
123640-93-7

4,4'-bis(triethoxysilyl)-1,1'-biphenyl

Conditions
ConditionsYield
With magnesium In tetrahydrofuran at 75℃; for 120h;34%
With magnesium In tetrahydrofuran at 74.85℃; for 120h;16%
4,4'-bis(triethoxysilyl)-1,1'-biphenyl
123640-93-7

4,4'-bis(triethoxysilyl)-1,1'-biphenyl

1,3,5,7,9,11,14-heptacyclopentyltricyclo[7.3.3.15,11]heptasiloxane-endo-3,7,14-triol
183387-28-2

1,3,5,7,9,11,14-heptacyclopentyltricyclo[7.3.3.15,11]heptasiloxane-endo-3,7,14-triol

C82H134O24Si16

C82H134O24Si16

Conditions
ConditionsYield
With tetramethyl ammoniumhydroxide In methanol; ethanol at 0 - 5℃; for 24h; Cooling with ice;75.9%
1.4-dibromobenzene
106-37-6

1.4-dibromobenzene

4,4'-bis(triethoxysilyl)-1,1'-biphenyl
123640-93-7

4,4'-bis(triethoxysilyl)-1,1'-biphenyl

4,4'-bis(tris(4-bromophenyl)silyl)-1,1'-biphenyl

4,4'-bis(tris(4-bromophenyl)silyl)-1,1'-biphenyl

Conditions
ConditionsYield
Stage #1: 1.4-dibromobenzene With n-butyllithium In diethyl ether at -78℃; for 1.25h; Inert atmosphere;
Stage #2: 4,4'-bis(triethoxysilyl)-1,1'-biphenyl In diethyl ether for 12h; Inert atmosphere; Cooling;
60%
trimethyloctadecylammonium chloride
112-03-8

trimethyloctadecylammonium chloride

4,4'-bis(triethoxysilyl)-1,1'-biphenyl
123640-93-7

4,4'-bis(triethoxysilyl)-1,1'-biphenyl

C21H32O3Si2

C21H32O3Si2

Conditions
ConditionsYield
With sodium hydroxide In water at 19.84 - 94.84℃; for 42h;

123640-93-7Downstream Products

123640-93-7Relevant articles and documents

Synthesis of new microporous layered organic-inorganic hybrid nanocomposites by alkoxysilylation of a crystalline layered silicate, ilerite

Ishii, Ryo,Ikeda, Takuji,Itoh, Tetsuji,Ebina, Takeo,Yokoyama, Toshirou,Hanaoka, Takaaki,Mizukami, Fujio

, p. 4035 - 4043 (2006)

We have developed microporous organic-inorganic hybrid nanocomposites by alkoxysilylation of 4,4′-biphenyl-bridged alkoxysilane compounds, which contain triethoxysilyl, methyldiethoxysilyl, and dimethylethoxysilyl groups at each end of the 4,4′-biphenylene unit ((CH3)n(C 2H5O)3-n-Si-C12H8-Si- (OC2H5)3-n(CH3)n, n = 0, 1, or 2, abbreviated as BESB(0), BESB(2), or BESB(4), respectively, where the number in parentheses indicates the number of methyl groups in these molecules), in the interlayer of a crystalline layered silicate, ilerite. XRD, 29Si solid-state NMR and fluorescence spectroscopy revealed the immobilization and bridging formation of the BESB molecules between the silicate layers by condensation, not only with H-ilerite, but also with the BESB molecules. The interlayer structures exhibited different molecular arrangements. BESB(0) and BESB(4) molecules are present as a monolayer arrangement in which BESB(0) molecules form the oligomeric species caused by close stacking like a dimer. BESB(2) molecules form mainly bilayer-like aggregates in the interlayer. The structural differences are caused by the different reactivities of the BESB molecules, which control their polymerization in the interlayer. The resultant BESB(0)- and BESB(2)-ilerite had high microporosity with BET surface areas (508 and 578 m2 g-1 for BESB(0)- and BESB(2)-ilerite, respectively). The micropores showed higher toluene adsorptivity than several other porous silica materials due to the successful surface modification. Consequently, this approach provides a new method for constructing novel microporous nanocomposites, the key to improved selectivity and activity in separation and catalytic applications. The Royal Society of Chemistry 2006.

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