32114-80-0

Basic information

• Product Name: Bistrifluormethyltrimethylsiloxyphosphinoxid
• Synonyms: Bistrifluormethyltrimethylsiloxyphosphinoxid
• CAS NO: 32114-80-0
• Molecular Weight: 274.175
• Mol File: 32114-80-0.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: Bistrifluormethyltrimethylsiloxyphosphinoxid(CAS DataBase Reference)
• NIST Chemistry Reference: Bistrifluormethyltrimethylsiloxyphosphinoxid(32114-80-0)
• EPA Substance Registry System: Bistrifluormethyltrimethylsiloxyphosphinoxid(32114-80-0)

Safety Data

• Hazardous Substances Data: 32114-80-0(Hazardous Substances Data)

Upstream product

• 3385-94-2 hexamethyldisilathiane 
• 646-71-9 bis(trifluoromethyl)phosphinic chloride 
• 107-46-0 Hexamethyldisiloxane 
• 754-37-0 Bis(trifluormethyl)phosphinsaeurebromid 
• 4656-04-6 bis(trimethylsilyl)mercury 

Relevant articles and documents

Trimethylsilyl esters of phosphorus acids. III. Esters of difluoro- and bis(trifluoromethyl)phosphinous and -thiophosphinous acids

The esters R2PESi(CH3)3 (R = F, E = O; R = CF3, E = O, S) have been prepared using one or more of four synthetic routes (CF3)2PSSi(CH3)3 is the first known example of a PIII-S-Si bridged compound, but the analogous difluoro ester F2PSSi(CH3)3 appears to be thermally unstable at 25°. Attempted syntheses of the P(V) isomers R2P(E)Si(CH3)3 gave only the P(III) forms, indicating that these systems are susceptible to anti-Arbuzov rearrangements. The difference in the stability and polarity between the P-O-Si and P-S-Si bridge units was demonstrated by the reactions of the esters with HCl and (CH3)2NH. At least three different reactions of the esters with dimethylamine were observed: cleavage at the E-Si bond with or without concomitant subsequent reaction of (CH3)3SiN(CH3)2 with the ionic product R2PE- and, in the case of (CF3)2POSi(CH3)3, displacement of CF3H to yield CF3[N(CH3)2]POSi(CH3)3. The latter phosphine showed a temperature-dependent nmr spectrum consistent with conformational isomerism of the N(CH3)2 group.

Trimethylsilyl esters of phosphorus acids. I. Preparation and properties of esters of difluoro- and bis(trinuoromethyl)phosphinic, -thlophosphinic, and -dithiophosphinic acids

Trimethylsilyl esters of difluorophosphinic, -thiophosphinic, and -dithiophosphinic acids and their bis(trifluoromethyl) analogs have been prepared by one or more of four different synthetic routes and characterized by infrared and nmr spectroscopy. Their reactions with anhydrous hydrogen chloride and thermal behavior have been investigated, the esters containing a P-S-Si bridge unit being markedly less thermally stable than those possessing the P-O-Si bridge. Dimethylamine reacts with the bis(trifluoromethyl) esters to give Me3SiNMe2 and dimethylammonium salts of the phosphinic acids, but in the case of the difluoro esters the initial product Me3SiNMe2 then attacks P-F bonds in the anions F2PEE′- (E, E′ = O, S) yielding Me3SiF and the anions F(Me2N)PEE′-. Copyright 1972 by the American Chemical Society.