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Allyltriphenylphosphonium bromide_Molecular_structure_CAS_1560-54-9)
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Allyltriphenylphosphonium bromide

Catalog No. A14490 Name Alfa Aesar
CAS Number 1560-54-9 Website
M. F. C21H20BrP Telephone
M. W. 383.261261 Fax
Purity 99% Email
Storage Chembase ID: 108935

SYNONYMS

Title
烯丙基三苯基溴化鏻
IUPAC name
triphenyl(prop-2-en-1-yl)phosphanium bromide
IUPAC Traditional name
triphenyl(prop-2-en-1-yl)phosphanium bromide

DATABASE IDS

EC Number 216-332-6
MDL Number MFCD00011808
Beilstein Number 3579053
CAS Number 1560-54-9

PROPERTIES

Purity 99%
Melting Point 222-225°C
GHS Pictograms GHS07
GHS Hazard statements H315-H319-H335
European Hazard Symbols Irritant Irritant (Xi)
GHS Precautionary statements P261-P305+P351+P338-P302+P352-P321-P405-P501A
Risk Statements 36/37/38
RTECS TA1843000
Safety Statements 26-37
Storage Warning Hygroscopic
TSCA Listed

DETAILS

REFERENCES

  • Wittig reaction (see Appendix 1) with aldehydes, using K2CO3 in toluene, gives dienes: Synth. Commun., 22, 1421 (1992). The derived phosphorane also reacts with ?-chloroacrylates to give conjugated phosphoranes, convertible to trienes: Tetrahedron Lett., 1359 (1975):
  • Michael addition of the phosphorane to ɑ?-unsaturated ketones, followed by intramolecular Wittig reaction, gives cyclohexa-1,3-dienes: Tetrahedron Lett., 4425 (1973). Further lithiation of the phosphorane in the presence of TMEDA, followed by reaction of the ylide anion with an aldehyde, provides a route to (E,E)-?-hydroxy-1,3-dienes: Tetrahedron Lett., 32, 4353 (1991).