5044-52-0 Usage
Description
VINYLTRIPHENYLPHOSPHONIUM BROMIDE, also known as Triphenylvinylphosphonium Bromide, is an organophosphonium compound with the chemical formula (C6H5)3P+CH=CHAr-Br-. It is a colorless crystalline solid that is soluble in organic solvents and has unique properties, such as thermal stability and reactivity, making it a versatile compound for various applications.
Uses
Used in Polymer Industry:
VINYLTRIPHENYLPHOSPHONIUM BROMIDE is used as a thermal stabilizer for epoxy resins to enhance their thermal stability. This improves the performance of the epoxy resins in high-temperature applications, such as in the manufacturing of electronic devices and coatings.
Used in Organic Chemistry:
VINYLTRIPHENYLPHOSPHONIUM BROMIDE is used as a Wittig reagent in organic chemistry for the synthesis of alkenes. The Wittig reaction is a widely used method for the preparation of alkenes from aldehydes and ketones, and VINYLTRIPHENYLPHOSPHONIUM BROMIDE serves as a key component in this reaction, providing a convenient and efficient route for the synthesis of various alkene compounds.
Check Digit Verification of cas no
The CAS Registry Mumber 5044-52-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,0,4 and 4 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 5044-52:
(6*5)+(5*0)+(4*4)+(3*4)+(2*5)+(1*2)=70
70 % 10 = 0
So 5044-52-0 is a valid CAS Registry Number.
InChI:InChI=1/C20H18P.BrH/c1-2-21(18-12-6-3-7-13-18,19-14-8-4-9-15-19)20-16-10-5-11-17-20;/h2-17H,1H2;1H/q+1;/p-1
5044-52-0Relevant articles and documents
A convenient access to: N -phosphonio-substituted NHC metal complexes [M = Ag(i), Rh(i), Pd(II)]
Benaissa, Idir,Taakili, Rachid,Lugan, No?l,Canac, Yves
, p. 12293 - 12305 (2017)
A series of NHC pre-ligands featuring a pendant phosphonium moiety attached to N′ position through a propyl linker was readily obtained upon quaternization of N-mesityl- and N-methyl-imidazole, or N-mesityl-imidazoline using (3-bromo-propyl)-triphenylphosphonium bromide. Reactions of the resulting dicationic salts with [PdCl(allyl)]2 in the presence of K2CO3 afforded the anticipated NHC-ligated Pd(ii) metal complexes in high yields. Further treatment of the latter complexes with tBuOK induced a deprotonation of the carbon atom adjacent to the phosphonium moiety and the formation of the corresponding C,C-chelating NHC-phosphonium ylide Pd(ii) complexes. Investigation of an alternative synthetic route involving a silver transmetallation reaction incidentally allowed isolation and full characterization of an unusual dimeric tetranuclear NHC Ag(i) complex of general formula [(NHC～P+)2(Ag4Br6)2-].
