35171-77-8

Basic information

• Product Name: Phosphonium, (1-methylethyl)triphenyl-, chloride
• CAS NO: 35171-77-8
• Molecular Formula: C21H22P.Cl
• Molecular Weight: 340.832
• Mol File: 35171-77-8.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: Phosphonium, (1-methylethyl)triphenyl-, chloride(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphonium, (1-methylethyl)triphenyl-, chloride(35171-77-8)
• EPA Substance Registry System: Phosphonium, (1-methylethyl)triphenyl-, chloride(35171-77-8)

Safety Data

• Hazardous Substances Data: 35171-77-8(Hazardous Substances Data)

Upstream product

• 75-36-5 acetyl chloride 
• 165334-37-2 2,3-dimethyl-3-triphenylphosphonio-2-silabutane-2-thiolate 
• 1071-38-1 N,N,N',N'-Tetramethylformamidinium chloride 

Relevant articles and documents

Heteroorganic betaines 3. * Reactions of betaines containing the +P-C-Si-S- fragment

The [Ph3P+-CMe2-SiMe2-SEt]Br- salt was prepared by the reaction of betaine Ph3P+-CMe2SiMeR-S- (1a: R = Me) with EtBr. Acetylation of betaine 1a or Et3P+-CHMeSiMe2-S- (2a) afforded 2,2,6-trimethyl-1,3-dioxa-2-silacyclohex-5-ene-4-thione Me2SiOC(=S)CH=C(Me)O or the [Et3P+-CHMeSiMe2Cl]Cl- salt depending on the reagent ratio. The reactions of betaines 1a,b (1b: R = Ph) or 2 with compounds (R3Sn)2X (X = O or NMe) can be used for the generation of silanones [RMeSi=O] and silaneimines [RMeSi=NMe] in solutions. The reactivity of betaines Ph3P+-CHR1SiMeR2-S- (R1 = H or Me and R2 = Me or Ph) is determined by the equilibrium between the zwitterionic and ylide Ph3P=CR1SiMeR2SH tautomers that exist in solutions.