75961-64-7

Basic information

• Product Name: diethyl(2,2-diphenylethyl) methylsilane
• Synonyms: diethyl(2,2-diphenylethyl) methylsilane
• CAS NO: 75961-64-7
• Molecular Weight: 282.501
• Mol File: 75961-64-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: diethyl(2,2-diphenylethyl) methylsilane(CAS DataBase Reference)
• NIST Chemistry Reference: diethyl(2,2-diphenylethyl) methylsilane(75961-64-7)
• EPA Substance Registry System: diethyl(2,2-diphenylethyl) methylsilane(75961-64-7)

Safety Data

• Hazardous Substances Data: 75961-64-7(Hazardous Substances Data)

Upstream product

• 1066-35-9 dimethylmonochlorosilane 
• 612-00-0 1,1'-ethylidenebis-benzene 
• 925-90-6 ethylmagnesium bromide 

Downstream Products

• 74-85-1 ethene 
• 681-07-2 diethylfluoromethylsilane 
• 519-73-3 triphenylmethane 

Relevant articles and documents

Oxidative Desilylation of Alkylsilanes with Triphenylcarbenium Ion. Control of Transition-State Geometry

Ten acylic, cyclic, and aralkyl-type silanes were treated with triphenylcarbenium tetrafluoroborate in dichloromethane to measure rates of oxidative desilylation: RCH2CH2SiR3+Ph3C(1+)BF4(1-)->Ph3CH+RCH=CH2+R3SiF+BF3.The divergence of rates, from Ph2CHCH2SiMe3, which was inert, through dimethylsilacyclopentane (k2=4E-6), to dimethylsilacyclohexane (k2=2.2E-3), can not be rationalized on purely electronic grounds.A transition state requiring anticoplanar arrangement of the silicon moiety and β-hydrogen to be extruded is proposed.Dimethylsilacyclobutane, which reacts extremely rapidly (k2 approx. 2E-2), suffers allylic cleavage of the initially formed fluoro(2-propenyl)dimethylsilane.As the olefin products suffer decomposition or polymerization under the reaction conditions, this desilylation is of minimal preparative value.