3272-86-4

Basic information

• Product Name: trimethyl[(trimethylsilyl)methylidene]-lambda~5~-phosphane
• Synonyms: Phosphorane, trimethyl((trimethylsilyl)methylene)-; Phosphorane, trimethyl[(trimethylsilyl)methylene]-
• CAS NO: 3272-86-4
• Molecular Formula: C₇H₁₉PSi
• Molecular Weight: 162.285
• Mol File: 3272-86-4.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 180.9°C at 760 mmHg
• Flash Point: 63.2°C
• Density: 0.81g/cm³
• Vapor Pressure: 1.19mmHg at 25°C
• Refractive Index: 1.413
• CAS DataBase Reference: trimethyl[(trimethylsilyl)methylidene]-lambda~5~-phosphane(CAS DataBase Reference)
• NIST Chemistry Reference: trimethyl[(trimethylsilyl)methylidene]-lambda~5~-phosphane(3272-86-4)
• EPA Substance Registry System: trimethyl[(trimethylsilyl)methylidene]-lambda~5~-phosphane(3272-86-4)

Safety Data

• Hazardous Substances Data: 3272-86-4(Hazardous Substances Data)

Upstream product

• 75-77-4 chloro-trimethyl-silane 
• 14580-91-7 trimethyl(methylene)phosphorane 
• 1070-88-8 Trimethylsilylmethyl-trimethyl-phosphoniumchlorid 

Downstream Products

• 14580-91-7 trimethyl(methylene)phosphorane 
• 676-96-0 Trimethylphosphine oxide 
• 107-46-0 Hexamethyldisiloxane 
• 3607-03-2 (bis-trimethylsilanyl-methylene)-trimethyl-λ⁵-phosphane 
• 2726-90-1 Trimethyl<(trimethylsilyl)methyl>phosphonium-hexafluorophosphat 
• 113489-51-3 (CH₃)3PCHSi(CH₃)3*AuP(C₆H₅)3⁽¹⁺⁾*Cl^(1-)=((CH₃)3PCHSi(CH₃)3)Au(P(C₆H₅)3)Cl 

Relevant articles and documents

ZUR REAKTION VON METALL-KOORDINIERTEM KOHLENMONOXID MIT YLIDEN. XVI. REVERSIBLER EINBAU VON KOHLENMONOXID IN EINE TRIMETHYLPHOSPHONIO(TRIMETHYLSILOXY)VINYL-EINHEIT: DARSTELLUNG DES ZWITTERIONISCHEN VINYL-CHROMKOMPLEXES Cp(CO)(NO)Cr-C(OSiMe3) = CH-PMe3 UND SOLVOLYTISCHER ABBAU, SOWIE ...

The β-trimethylphosphonio (α-trimethylsiloxy)vinylchromium complex Cp(CO)(NO)Cr-C(OSiMe3) = CH-PMe3 (2) can be isolated from a concentrated solution of Cp(CO)2(NO)Cr (1) and Me3P=CHSiMe3 in benzene. 2 is obtained in better yield via O-silylation of the tetramethylphosphonium chromium acylate Me4P (3) with Me3SiOSO2CF3. 2 decomposes readily by treatment with benzene to 1 and Me3P=CHSiMe3, which forms the ylide complex Cp(CO)(NO)Cr-CH(SiMe3)-PMe3 (4) on photolysis.Degradation of 2 can be accelerated extraordinarily by traces of Me3P=CH2.With Me3P=CH2 (2 mol) controlled conversion of 2 to 3 and Me3P=CHSiMe3 occurs.MeX (X = I, SO3F) cleaves 2 to 1 and the phosphonium salt X (5a, 5b).