Trimethylenebis(triphenylphosphonium bromide)

• Catalog No.: B25165
• CAS Number: 7333-67-7
• M. F.: C39H36Br2P2
• M. W.: 726.458662
• Purity: 98+%

SYNONYMS

• Title: 三亚甲基双(三苯基溴化膦)
• IUPAC name: triphenyl[3-(triphenylphosphaniumyl)propyl]phosphanium dibromide
• IUPAC Traditional name: triphenyl[3-(triphenylphosphaniumyl)propyl]phosphanium dibromide
• Synonyms: 1,3-Bis(triphenylphosphonio)propane dibromide

DATABASE IDS

• CAS Number: 7333-67-7
• EC Number: 230-835-8
• MDL Number: MFCD00051885
• Beilstein Number: 4281936

PROPERTIES

• Purity: 98+%
• Melting Point: 333-335°C
• GHS Hazard statements: H315-H319-H335
• European Hazard Symbols: Irritant (Xi)
• GHS Precautionary statements: P261-P305+P351+P338-P302+P352-P321-P405-P501A
• Risk Statements: 36/37/38
• Safety Statements: 26-37
• Storage Warning: Hygroscopic
• TSCA Listed: 否

REFERENCES

• The bis-Wittig reaction with ɑ-dicarbonyl compounds has been used to prepare cyclopentadienes for subsequent use in the Diels-Alder reaction: J. Am. Chem. Soc., 111, 2351 (1989). For use in the synthesis of open-chain or cyclic polyenes, see: Liebigs Ann. Chem., 619, 10 (1958). Reaction with geranylacetone provides a one-step synthesis of norsqualene: Synthesis, 22 (1970).
• For review of the bis-Wittig reaction in the synthesis of non-benzenoid aromatic compounds, see: Synthesis, 765 (1975).