17571-61-8

Basic information

• Product Name: Diphenylmethylbromosilane
• Synonyms: bromo(methyl)diphenylsilane
• CAS NO: 17571-61-8
• Molecular Formula: C₁₃H₁₃BrSi
• Molecular Weight: 277.2318
• Mol File: 17571-61-8.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 305.9°C at 760 mmHg
• Flash Point: 202.6°C
• Density: 1.28g/cm³
• Vapor Pressure: 0.00144mmHg at 25°C
• Refractive Index: 1.586
• CAS DataBase Reference: Diphenylmethylbromosilane(CAS DataBase Reference)
• NIST Chemistry Reference: Diphenylmethylbromosilane(17571-61-8)
• EPA Substance Registry System: Diphenylmethylbromosilane(17571-61-8)

Safety Data

• Hazardous Substances Data: 17571-61-8(Hazardous Substances Data)

Usage

General Description

Diphenylmethylbromosilane is a chemical compound with the molecular formula C13H12BrSi. It is a colorless liquid with a slightly sweet odor, and it is primarily used as a starting material for the synthesis of various organosilicon compounds. Diphenylmethylbromosilane is often employed as a reagent in organic chemistry, particularly in the preparation of silicon-containing polymers and materials. It is also used in the production of specialty chemicals and pharmaceuticals. Diphenylmethylbromosilane is considered to be both flammable and corrosive, and proper safety precautions should be taken when handling and storing it.

Upstream product

• 776-76-1 methyldiphenylsilane 
• 1450-19-7 1,1,2-trimethyl-1,2,2-triphenyldisilane 
• 1450-22-2 methylpentaphenyldisilane 
• 1172-76-5 1,2-dimethyl-1,1,2,2-tetraphenyldisilane 

Relevant articles and documents

Selective synthesis of halosilanes from hydrosilanes and utilization for organic synthesis

Selective synthesis of halosilanes has been examined. Various types of halosilanes and halohydrosilanes, such as R3SiX, R2SiHX, R2SiX2, RSiH2X, RSiHX2 (X=Cl, Br, F), were obtained by the reactions of the corresponding hydrosilanes with Cu(II)-based reagents selectively in high yields. This method could be also applied to the synthesis of chlorofluorosilanes and chlorohydrogermanes. On the other hand, iodo- and bromosilanes and germanes were obtained by Pd- or Ni-catalyzed hydride-halogen exchange reactions of hydrosilanes with alkyl or allyl halides. Their synthetic applications have been demonstrated by using iodo- and bromosilanes and chlorofluorosilanes.

The Mechanism of the Reaction of Molecular Bromine with Organosilicon Hydrides

The kinetics of the bromination of 7 triarylsilanes and 14 other organosilicon hydrides by molecular bromine in CCl4 have been determined by the stopped flow method.For triethylsilane, Arrhenius parameters have been measured in octane and CCl4, and solvent effects determined in other solvents of different polarity.The results accord with a molecular mechanism involving one molecule of bromine and one of the organosilicon hydride, with partial positive charge build-up on silicon in the transition state.