14760-11-3

Basic information

• Product Name: 2,2,5,5-tetramethyl-1,3-dioxa-2-silacyclohexane
• Synonyms: 2,2,5,5-tetramethyl-1,3-dioxa-2-silacyclohexane;Einecs 238-819-2
• CAS NO: 14760-11-3
• Molecular Formula: C₇H₁₆O₂Si
• Molecular Weight: 160.28624
• EINECS: 238-819-2
• Mol File: 14760-11-3.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 148.9°Cat760mmHg
• Flash Point: 36.7°C
• Appearance: /
• Density: 0.91g/cm³
• Vapor Pressure: 5.24mmHg at 25°C
• Refractive Index: 1.425
• CAS DataBase Reference: 2,2,5,5-tetramethyl-1,3-dioxa-2-silacyclohexane(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2,5,5-tetramethyl-1,3-dioxa-2-silacyclohexane(14760-11-3)
• EPA Substance Registry System: 2,2,5,5-tetramethyl-1,3-dioxa-2-silacyclohexane(14760-11-3)

Safety Data

• Hazardous Substances Data: 14760-11-3(Hazardous Substances Data)

Usage

General Description

2,2,5,5-tetramethyl-1,3-dioxa-2-silacyclohexane, also known as D4, is a colorless liquid with a faint odor. It is a type of cyclic silicone compound that is commonly used as a building block in the production of silicone polymers. D4 is known for its low surface tension, good thermal stability, and resistance to oxidative degradation, making it a valuable ingredient in a wide range of industrial and consumer products such as adhesives, sealants, lubricants, and personal care items. However, there have been concerns about its potential environmental and health impacts, particularly its persistence in the environment and possible endocrine-disrupting properties. As a result, there has been scrutiny and regulation of its use in certain applications.

InChI:InChI=1/C7H16O2Si/c1-7(2)5-8-10(3,4)9-6-7/h5-6H2,1-4H3

Upstream product

• 75-78-5 dimethylsilicon dichloride 
• 126-30-7 2,2-Dimethyl-1,3-propanediol 
• 78-62-6 diethoxy dimethylsilane 
• 872-98-0 5,5-dimethyl-1,3-dioxane 
• 7595-34-8 bis(ethylmercapto)dimethylsilane 
• 5783-79-9 5,5-Dimethyl-2-ethoxy-1,3-dioxane 
• 86934-32-9 bis(1-methoxy-2-methyl-1-propenyloxy)dimethylsilane 
• 4095-10-7 dimethyldibromosilane 
• 767-55-5 2,2,5,5-tetramethyl-1,3-dioxane 
• 766-33-6 2,5,5-trimethyl-1,3-dioxane 

Downstream Products

• 707-29-9 3,3-dimethyl-1,5-dioxa-spiro[5.5]undecane 
• 14903-76-5 2,2,4-trimethyl-2-sila-1,3-dioxacyclohexane 
• 126-30-7 2,2-Dimethyl-1,3-propanediol 
• 26482-65-5 2,2-dimethyl-1,3-propanediol dinitrate 

Relevant articles and documents

SYNTHESIS AND STRUCTURE OF METHYL-SUBSTITUTED 1,3-DIOXA-2-SILACYCLOHEXANES

The reaction of dimethyl(diethylthio)silane with 1,3-diols gave methyl-substituted 1,3-dioxa-2-silacyclohexanes. 1H and 13C NMR spectroscopy were used to study the configuration and predominant conformations of the compounds studied.

Clean nitrations: Novel syntheses of nitramines and nitrate esters by nitrodesilylation reactions using dinitrogen pentoxide (N2O5)

In this novel nitration method dinitrogen pentoxide (N2O5) in an inert solvent is used as the nitrating agent, thereby removing the need for strong acids as the reaction medium. The N2O5 cleaves heteroatom-silicon bonds, in silylamines and silyl ethers respectively, to yield the desired energetic groupings (nitramines or nitrate esters respectively) without liberation of acids which would occur with conventional substrates (amines or alcohols). These nitrodesilylation reactions proceed cleanly and in good yield, and the scope of the reaction is illustrated by 29 examples, some of which produce high energy compounds, notably plasticisers and an energetic polymer precursor. These reactions are therefore potentially clean nitrations for the manufacture of energetic compounds which will minimise the impact of this activity on the environment in the future.

O-SILYLATED KETENE ACETAL CHEMISTRY; DIVINYLOXYSILANE DERIVATIVES AS NOVEL AND USEFUL BIFUNCTIONAL PROTECTING AGENTS FOR H-ACIDIC MATERIALS

Novel reagents, bis(1-methoxy-2-methyl-1-propenyloxy)silanes (2a-d) have been shown to be very useful bifunctional protecting agents for various types of H-acidic materials, such as diols, dithiols, diacids and their combined materials.The reaction proceeds rapidly under mild conditions to give the corresponding silylene derivatives in almost quantitative yields.