TRIPHENYLPHOSPHINE DIBROMIDE

TRIPHENYLPHOSPHINE DIBROMIDE Basic information
Product Name:TRIPHENYLPHOSPHINE DIBROMIDE
Synonyms:TRIPHENYLPHOSPHINE DIBROMIDE;DIBROMO TRIPHENYL PHOSPHINE;BROMOTRIPHENYLPHOSPHONIUM BROMIDE;dibromotriphenyl-phosphoran;Dibromotriphenylphosphorane,98%;Phosphorane, dibromotriphenyl-;Bromotriphenylphosphonium bromide, Dibromotriphenylphosphorane;dibroMotriphenyl-$l^{5}-phosphane
CAS:1034-39-5
MF:C18H15Br2P
MW:422.09
EINECS:213-855-1
Product Categories:organophosphorus compound
Mol File:1034-39-5.mol
TRIPHENYLPHOSPHINE DIBROMIDE Structure
TRIPHENYLPHOSPHINE DIBROMIDE Chemical Properties
Melting point 235 °C (dec.) (lit.)
storage temp. Inert atmosphere,Room Temperature
form Crystalline Powder
color Light yellow to light pink
Water Solubility Soluble in water, dichloromethane, acetonitrile, phenyl cyanide, dimethyl formamide, ether, chloroform, alcohol, carbon tetrachloride, acetic acid and carbon disulfide. Sparingly soluble in phenyl chloride, triphenylphosphine and phenyl hydride. Insoluble in aqueous bromine.
Sensitive Moisture Sensitive
BRN 917652
InChIKeyOCXGTPDKNBIOTF-UHFFFAOYSA-N
CAS DataBase Reference1034-39-5(CAS DataBase Reference)
EPA Substance Registry SystemPhosphorane, dibromotriphenyl- (1034-39-5)
Safety Information
Hazard Codes C
Risk Statements 34
Safety Statements 26-36/37/39-45
RIDADR UN 3261 8/PG 2
WGK Germany 3
3-10-21
TSCA Yes
HazardClass 8
PackingGroup II
HS Code 29319019
MSDS Information
ProviderLanguage
ACROS English
SigmaAldrich English
ALFA English
TRIPHENYLPHOSPHINE DIBROMIDE Usage And Synthesis
Chemical Propertieslight yellow to light pink crystalline powder
UsesTriphenylphosphine dibromide is used as a reagent for conversion of aldoximes into nitriles. It acts as a reagent for cleavage of acetals. It reacts with amines to give iminophosphoranes. Further, it serves as a reagent in the preparation of alkyl and aryl bromides from alcohols and phenols without rearrangement.
Purification MethodsIt recrystallises from MeCN/Et2O. Although it has been recrystallised from EtOH, this is not recommended as it converts alcohols to alkyl bromides. It deteriorates on keeping, and it is best to prepare it afresh. [Anderson & Freenor J Am Chem Soc 86 5037 1964, Horner et al. Justus Liebigs Ann Chem 626 26 1959, Beilstein 16 III 864.]
TRIPHENYLPHOSPHINE DIBROMIDE Preparation Products And Raw materials
Raw materialsDichloromethane-->Toluene-->Government regulation-->Carbon tetrachloride-->Triphenylphosphine-->Benzeneacetonitrile
Preparation Products1-Bromo-4-phenylbutane
Tungsten hexacarbonyl Chromium hexacarbonyl Phenyl phosphine TRIPHENYLPHOSPHINE DIBROMIDE, (DIBROMOTRIPHENYLPHOSPHORANE) Benzene Phosphine Triphenylphosphine

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