2031-62-1

Basic information

• Product Name: Diethoxymethylsilane
• Synonyms: diethoxymethyl-silan;Silane, diethoxymethyl-;Diethoxymethylsilane [Hydrosilylating Reagent];Diethoxymethylsilane. Methylhydrogendiethoxysilane.;Methyldiethoxysilane,97%;DiethoxyMethylsilane [Hydrosilylating Reagent], 95.0%(GC);Methyldiethoxysilane >=96%;DIETHOXYMETHYLSILANE
• CAS NO: 2031-62-1
• Molecular Formula: C₅H₁₄O₂Si
• Molecular Weight: 134.25
• EINECS: 217-982-3
• Product Categories: Dialkoxysilanes;Reduction;Si (Classes of Silicon Compounds);Si-H Compounds;Silicon Compounds (for Synthesis);Si-O Compounds;Synthetic Organic Chemistry;Alkoxy Silanes;Hydrogensilanes Hydrogensiloxanes;Reducing Agents
• Mol File: 2031-62-1.mol
• Article Data: 4

Chemical Properties

• Melting Point: 98 °C
• Boiling Point: 94-95 °C(lit.)
• Flash Point: 10°C
• Appearance: Colorless clear liquid
• Density: 0.838 g/mL at 20 °C(lit.)
• Vapor Pressure: 0.053-7910Pa at 25℃
• Refractive Index: 1.3760
• Storage Temp.: Flammables area
• Water Solubility: Miscible with water, 1,4-dioxane, tetrahydrofuran, acetonitrile, dichloromethane, chloroform, dimethyl sulfoxide, hexamethylphos
• Sensitive: Moisture Sensitive
• BRN: 1733975
• CAS DataBase Reference: Diethoxymethylsilane(CAS DataBase Reference)
• NIST Chemistry Reference: Diethoxymethylsilane(2031-62-1)
• EPA Substance Registry System: Diethoxymethylsilane(2031-62-1)

Safety Data

• Hazard Codes: F,Xi
• Statements: 11-36/37/38
• Safety Statements: 16-26-36
• RIDADR: UN 1993 3/PG 2
• WGK Germany: 3
• TSCA: Yes
• HazardClass: 3
• PackingGroup: II
• Hazardous Substances Data: 2031-62-1(Hazardous Substances Data)

Usage

Chemical Properties

Colorless clear liquid

Uses

Diethoxymethylsilane is used in the preparation of N,N'-methylsilanediyl-bis-phthalimide by reacting with phthalimide. It is used as a reagent in the selective reduction of carbonyl compounds, hydorosilylation of alkenes, tandem reductive aldol reaction and rhodium-catalyszed silylcarbocyclization.

Flammability and Explosibility

Flammable

InChI:InChI=1/C5H13O2Si/c1-4-6-8(3)7-5-2/h4-5H2,1-3H3

Upstream product

• 75-54-7 Dichloromethylsilane 
• 78-10-4 tetraethoxy orthosilicate 
• 1825-62-3 ethyl trimethylsilyl ether 
• 60-29-7 diethyl ether 
• 4518-98-3 1,1,2,2-tetrachloro-1,2-dimethyldisilane 
• 37170-21-1 2-(Diethoxy-methyl-silyl)-propionitril 
• 122-51-0 orthoformic acid triethyl ester 
• 64-17-5 ethanol 

Downstream Products

• 2897-60-1 γ-(2,3-glycidoxypropyl)methyldiethoxysilane 
• 18043-74-8 1,2-bis(methyldiethoxysilyl)ethane 
• 5507-44-8 methylvinyldiethoxysilane 
• 208661-39-6 (Z)-1-(diethoxymethylsilyl)-2-phenylethene 
• 208661-52-3 (E)-1-(diethoxymethylsilyl)-2-phenylethene 
• 13501-76-3 3-chloropropylmethyldiethoxysilane 
• 407584-39-8 iodo(hydrido)(methyldiethoxysilyl)bis(triphenylphosphine)rhodium(III) 
• 688004-16-2 chloropropyl(ethoxy)(methyl)silyl chloride 
• 18157-20-5 chloro(diethoxy)(methyl)silane 
• 2031-67-6 Methyltriethoxysilan 

Relevant articles and documents

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One-Step Synthesis of Siloxanes from the Direct Process Disilane Residue

The well-established Müller–Rochow Direct Process for the chloromethylsilane synthesis produces a disilane residue (DPR) consisting of compounds MenSi2Cl6?n(n=1–6) in thousands of tons annually. Technologically, much effort is made to retransfer the disilanes into monosilanes suitable for introduction into the siloxane production chain for increase in economic value. Here, we report on a single step reaction to directly form cyclic, linear, and cage-like siloxanes upon treatment of the DPR with a 5 m HCl in Et2O solution at about 120 °C for 60 h. For simplification of the Si?Si bond cleavage and aiming on product selectivity the grade of methylation at the silicon backbone is increased to n≥4. Moreover, the HCl/Et2O reagent is also suitable to produce siloxanes from the corresponding monosilanes under comparable conditions.

Improved Procedure for the Selective Reduction of Carbonyl Compounds and Carboxylic Acid Esters by Potassium Salt-Induced Hydrosilylation

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