328-57-4

Basic information

• Product Name: Phenyl(methyl)difluorosilane
• Synonyms: 4-[Difluoro(methyl)silyl]benzene;Difluoro(methyl)phenylsilane;Methyldifluorophenylsilane;Methylphenyldifluorosilane;Phenyl(methyl)difluorosilane;silane difluoromethylphenyl
• CAS NO: 328-57-4
• Molecular Formula: C₇H₈F₂Si
• Molecular Weight: 158.2207
• Mol File: 328-57-4.mol
• Article Data: 7

Chemical Properties

• Boiling Point: 143.17°C (estimate)
• Flash Point: 37.1°C
• Appearance: /
• Density: 1.03g/cm³
• Vapor Pressure: 8.61mmHg at 25°C
• Refractive Index: 1.442
• CAS DataBase Reference: Phenyl(methyl)difluorosilane(CAS DataBase Reference)
• NIST Chemistry Reference: Phenyl(methyl)difluorosilane(328-57-4)
• EPA Substance Registry System: Phenyl(methyl)difluorosilane(328-57-4)

Safety Data

• Hazardous Substances Data: 328-57-4(Hazardous Substances Data)

Usage

InChI:InChI=1/C7H8F2Si/c1-10(8,9)7-5-3-2-4-6-7/h2-6H,1H3

Upstream product

• 7783-56-4 antimony(III) fluoride 
• 149-74-6 dichloromethylphenylsilane 
• 766-08-5 methylphenylsilane 
• 3027-21-2 dimethoxy(methyl)phenylsilane 
• 138914-12-2 1-(Difluoro-phenyl-silanyl)-2-(fluoro-diphenyl-silanyl)-benzene 
• 114439-65-5 1-Fluoro-1,3,3,3-tetramethyl-1-phenyl-disiloxane 
• 50732-22-4 difluorphosphan 
• 65768-32-3 N-(Fluormethylphenylsilyl)-2,4,6-trimethylanilin 
• 1631-82-9 chloro(methyl)phenylsilane 
• 775-56-4 diethoxy-methyl-phenyl-silane 

Downstream Products

• 70557-48-1 C₁₃H₂₇FN₂Si₃ 
• 72190-81-9 [Fluoro-methyl-(tris-trimethylsilanyl-methyl)-silanyl]-benzene 
• 60556-31-2 N-(Fluormethylphenylsilyl)-tert-butylamin 
• 65768-28-7 N-(Fluormethylphenylsilyl)-isopropylamin 
• 66436-24-6 N-Fluormethylphenylsilyl-N',N'-dimethylhydrazin 
• 62978-26-1 1,3-Bis-(fluoro-methyl-phenyl-silanyl)-2,2,4,4,6,6-hexamethyl-[1,3,5,2,4,6]triazatrisilinane 
• 65768-32-3 N-(Fluormethylphenylsilyl)-2,4,6-trimethylanilin 
• 57915-52-3 1-Fluoro-1,2,3,3,3-pentamethyl-1-phenyl-disilazane 
• 3089-06-3 1,3-dimethyl-1,3-diphenyldisiloxane-1,3-diol 
• 865-46-3 dimethylfluorosilane 
• 135764-51-1 1-Fluoro-1,3,3-trimethyl-1-phenyl-disiloxane 
• 353-66-2 dimethyldifluorosilane 
• 92810-29-2 1,1-Di-tert-butyl-3-fluor-3-methyl-3-phenyldisiloxan-1-ol 
• 85226-05-7 4--3,5-dimethyl-3,5-diphenyl-1,2-bis(trimethylsilyl)-1,2,4-triaza-3,5-disilacyclopentan 

Relevant articles and documents

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Nucleophilic fluorination of alkoxysilane with alkali metal salts of perfluorinated complex anions. Part 2

Alkali metal salts of perfluorinated complex anions have been used to effect nucleophilic fluorination of alkyl-, arylalkyl- and arylalkoxy-silanes both in the presence and absence of solvent. Near-quantitative yields of fluorinated silanes are obtained using equimolar quantities of fluoride ion equivalents and alkoxysilanes. In certain cases, intermediate organoboron and organophosphorus compounds derived from the corresponding complex anions and alkoxysilanes are identified in the reaction mixtures, and based on these intermediates a mechanism of reaction has been proposed.

Anion complexation by bidentate Lewis acidic hosts, ortho-bis(fluorosilyl) benzenes

Ortho-bis(fluorosilyl)benzenes, precursors for bis-siliconates, o-C6H4(SiPhF2)2 (1), o-C6H4(SiF3)(SiPh2F) (2) and o-C6H4(SiPhF2)(SiPh2F) (3), possess anion binding properties as bidentate Lewis acidic hosts in organic solvents. Compound 1 quantitatively binds a fluoride ion from KF suspended in acetone or tetrahydrofuran without support of 18-crown-6 to form the corresponding soluble bis-siliconate [o-C6H4(SiPhF2)2F]K (4). The binding constants of a series of fluorosilanes for a fluoride ion are measured by 1H and 19F NMR spectroscopies. The affinity of fluorosilanes towards a fluoride ion increases in the order PhMeSiF2 (7) 2SiF2 (9) 1.1 × 109 M-1 at 193 K. These bidentate Lewis acids 1-3 are among the strongest organic hosts for a fluoride ion in organic solvents ever reported.