1873-88-7 Usage
Description
Bis(trimethylsiloxy)methylsilane is a colorless liquid that serves as an important raw material and intermediate in various industries, including organic synthesis, pharmaceutical, and dyestuff. It is known for its ability to be used in the platinum-catalyzed aromatic C-H silylation of arenes and the silylation of aryl iodides.
Uses
Used in Organic Synthesis:
Bis(trimethylsiloxy)methylsilane is used as a catalyst for reduction reactions in organic syntheses, facilitating the formation of new chemical bonds and improving the efficiency of the process.
Used in Pharmaceutical Industry:
In the pharmaceutical industry, Bis(trimethylsiloxy)methylsilane is used as a key intermediate for the synthesis of various drugs and pharmaceutical compounds, contributing to the development of new medications and therapies.
Used in Dyestuff Industry:
Bis(trimethylsiloxy)methylsilane is utilized as a crucial raw material in the production of dyes and pigments, enhancing the color properties and performance of these substances.
Used in Surfactant Production:
Bis(trimethylsiloxy)methylsilane is used as a basic material for synthetic polyalkylene oxide-modified heptamethyltrisiloxane, which is a specific structure surfactant for pesticide additives and coating additives, improving the effectiveness and performance of these products.
Used in Agricultural Adjuvants:
It is used as a reagent to synthesize 3-Octyl-1,1,1,3,5,5,5-heptamethyltrisiloxane, an agricultural adjuvant and sensory performance enhancer used in cosmetic formulations, providing benefits in both the agricultural and cosmetic industries.
Used in Conjugated Polymer Synthesis:
Bis(trimethylsiloxy)methylsilane is employed in the synthesis of isoindigo-based conjugated polymers with siloxane-terminated solubilizing groups, which have potential applications in various fields, including electronics and materials science.
Used in Monosiloxy Ester Synthesis:
It is also used for the synthesis of monosiloxy esters with a variety of acids, expanding the range of applications and products that can be derived from this versatile intermediate.
Flammability and Explosibility
Flammable
References
https://www.alfa.com/zh-cn/catalog/H60586/
Murata, Miki, et al. "Silylation of Aryl Iodides with 1,1,1,3,5,5,5 -Heptamethyltrisiloxane Catalyzed by Transition-Metal Complexes." Synlett 2007.09(2007):1387-1390.
Murata, Miki, et al. "Platinum-Catalyzed Aromatic C—H Silylation of Arenes with 1,1,1,3,5,5,5-Heptamethyltrisiloxane." Cheminform38.50 (2007):no-no.
Check Digit Verification of cas no
The CAS Registry Mumber 1873-88-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,7 and 3 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1873-88:
(6*1)+(5*8)+(4*7)+(3*3)+(2*8)+(1*8)=107
107 % 10 = 7
So 1873-88-7 is a valid CAS Registry Number.
InChI:InChI=1/C7H21O2Si3/c1-10(8-11(2,3)4)9-12(5,6)7/h1-7H3
1873-88-7Relevant articles and documents
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Stober,M.R. et al.
, p. 1651 - 1652 (1965)
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Method for preparing 1, 1, 1, 3, 5, 5, 5-heptamethyltrisiloxane
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Paragraph 0009; 0010, (2016/11/17)
The invention discloses a method for preparing 1, 1, 1, 3, 5, 5, 5-heptamethyltrisiloxane. According to the method, concentrated sulfuric acid with the mass concentration being 98% serves as a catalyst, methyl hydrogen silicone oil 202 and hexamethyldisiloxane serve as raw materials, a catalyst reaction is conducted, and the 1, 1, 1, 3, 5, 5, 5-heptamethyltrisiloxane with the mass concentration being 99% and above is obtained. According to the method, the concentrated sulfuric acid serves as the catalyst, the catalyst is simple and easy to obtain, the price is low, the catalysis effect is good, operation is convenient and fast, production cost is lowered, and production efficiency is effectively improved.
Kinetic Investigation of the Platinum-catalysed Hydrosilylation of Vinylsiloxanes with Hydrogensiloxanes
Brand, Dagmar,Moretto, Hans-Heinrich,Schulze, Manfred,Wrobel, Dieter
, p. 218 - 224 (2007/10/02)
A kinetic investigation of the platinum-catalysed hydrosilylation of monofunctional oligomeric vinylsiloxanes by monofunctional oligomeric hydrogensiloxanes was performed under stoichiometric conditions with use of quantitative 1H-NMR spectrometry.The reaction rate up to 50percent conversion can be expressed by v=k .During further hydrosilylation the kinetic changed to second order.No induction period was observed.A hydrogensiloxane with a dimethylsilyl end group gives much higher rates than a siloxane with a methylsiloxy group.The main reactions of all hydrosilylations, determined by GC-MS and 29Si-NMR, are β-additions.Less then 5percent α-products are obtained.