3739-97-7

Basic information

• Product Name: triphenyl[(trimethylsilyl)methylidene]-lambda~5~-phosphane
• Synonyms: Phosphorane, triphenyl((trimethylsilyl)methylene)-
• CAS NO: 3739-97-7
• Molecular Formula: C₂₂H₂₅PSi
• Molecular Weight: 348.4932
• Mol File: 3739-97-7.mol
• Article Data: 6

Chemical Properties

• Boiling Point: 437.4°C at 760 mmHg
• Flash Point: 218.4°C
• Density: 1.04g/cm³
• Vapor Pressure: 1.92E-07mmHg at 25°C
• Refractive Index: 1.573
• CAS DataBase Reference: triphenyl[(trimethylsilyl)methylidene]-lambda~5~-phosphane(CAS DataBase Reference)
• NIST Chemistry Reference: triphenyl[(trimethylsilyl)methylidene]-lambda~5~-phosphane(3739-97-7)
• EPA Substance Registry System: triphenyl[(trimethylsilyl)methylidene]-lambda~5~-phosphane(3739-97-7)

Safety Data

• Hazardous Substances Data: 3739-97-7(Hazardous Substances Data)

Upstream product

• 75-77-4 chloro-trimethyl-silane 
• 19493-09-5 Methylenetriphenylphosphorane 
• 4206-67-1 iodo(trimethylsilyl)methane 
• 3739-98-8 triphenyl(trimethylsilylmethyl)phosphonium iodide 

Downstream Products

• 144038-05-1 (Z)-1,6-Bis-(triphenyl-λ⁵-phosphanylidene)-hex-3-ene-2,5-dione 
• 41726-55-0 Bis-(triphenylphosphoranyliden)-1,7-heptadion-2,6 
• 144038-09-5 1-[2-Oxo-3-(triphenyl-λ⁵-phosphanylidene)-propoxy]-3-(triphenyl-λ⁵-phosphanylidene)-propan-2-one 
• 144038-10-8 1-[2-Oxo-3-(triphenyl-λ⁵-phosphanylidene)-propylsulfanyl]-3-(triphenyl-λ⁵-phosphanylidene)-propan-2-one 
• 63636-63-5 ((E)-3-Methyl-buta-1,3-dienyl)-triphenyl-phosphonium; bromide 
• 144038-11-9 1-{[2-Oxo-3-(triphenyl-λ⁵-phosphanylidene)-propyl]-phenyl-amino}-3-(triphenyl-λ⁵-phosphanylidene)-propan-2-one 
• 144038-13-1 1-(Triphenyl-λ⁵-phosphanylidene)-3-{2-[2-(triphenyl-λ⁵-phosphanylidene)-acetyl]-phenyl}-propan-2-one 
• 98291-63-5 Triphenyl-(1-trimethylsilanyl-but-3-enyl)-phosphonium; bromide 
• 144038-12-0 1-{(1R,3S)-1,2,2-Trimethyl-3-[2-(triphenyl-λ⁵-phosphanylidene)-acetyl]-cyclopentyl}-2-(triphenyl-λ⁵-phosphanylidene)-ethanone 
• 144038-07-3 2-(Triphenyl-λ⁵-phosphanylidene)-1-{(1R,2S)-2-[2-(triphenyl-λ⁵-phosphanylidene)-acetyl]-cyclohexyl}-ethanone 
• 81509-52-6 bromure de methyl-4 butadien-1,3 yl phosphonium 
• 4143-74-2 4'-methoxyflavone 
• 126156-17-0 FeCo₂(CO)9(CCH₂CHSi(CH₃)3P(C₆H₅)3) 
• 101305-47-9 1,6-Bis-(triphenyl-λ⁵-phosphanylidene)-hexane-2,5-dione 

Relevant articles and documents

Total synthesis of echinopines A and B: Exploiting a bioinspired late-stage intramolecular cyclopropanation

Total synthesis of echinopine A and B have been accomplished, based on a strategy that involved two transition-metal-mediated ene-yne cycloisomerizations. A modified Pd-catalyzed enyne cycloisomerization/ intramolecular Diels-Alder cascade rendered a more

Stabilized and persistent allenylketenes

Photolyses of 2,3-bis(trimethylsilyl)-substituted methylenecyclobutenones 22-26 give essentially quantitative conversion to the allenylketenes 28-32 which have been isolated as long-lived species at room temperature. As predicted by molecular orbital calc

Synthesis and reactions of [1-(trialkylsilyl)alkylidene]triphenylphosphoranes

Alkylidenetriphenylphosphoranes 1 react with trialkyl halosilanes 2 to afford silylated alkylidenephosphoranes 5, which can be converted to acylated alkylidenephosphoranes 8 and 10 by trimethylsilyl carboxylates 6 or carboxylic anhydrides 10. Bis(acylalkylidenephosphoranes) 13-15 are available from 5 and bis(trimethylsilyl) dicarboxylates 12 or cyclic or polymeric anhydrides 16, 17.