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CAS 1779-49-3

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Methyltriphenylphosphonium bromide

Description:
Methyltriphenylphosphonium bromide is a quaternary ammonium salt characterized by its distinctive structure, which includes a central phosphorus atom bonded to three phenyl groups and a methyl group, along with a bromide counterion. This compound typically appears as a white to off-white crystalline solid and is soluble in polar solvents such as water and alcohols, while being less soluble in non-polar solvents. It is known for its role as a phase transfer catalyst in organic synthesis, facilitating the transfer of reactants between different phases, particularly in reactions involving ionic species. Methyltriphenylphosphonium bromide can also serve as a precursor in the synthesis of various phosphonium ylides, which are important intermediates in organic chemistry, especially in the formation of alkenes through the Wittig reaction. Additionally, it exhibits stability under standard laboratory conditions but should be handled with care due to its potential toxicity and the need for proper safety protocols.
Formula:C19H18BrP
InChI:InChI=1/C18H15P.CH3Br/c1-4-10-16(11-5-1)19(17-12-6-2-7-13-17)18-14-8-3-9-15-18;1-2/h1-15H;1H3/p+1
InChI key:InChIKey=LSEFCHWGJNHZNT-UHFFFAOYSA-M
SMILES:[P+](C)(C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3.[Br-]
Synonyms:
  • Bromure de methyltriphenylphosphonium
  • Bromuro De Trifenilmetilfosfonio
  • M 0779
  • Methyltriphenyliphosphonium bromide
  • Methyltriphenylphoshonium bromide
  • Methyltriphenylphosphonium Bromide
  • Methyltriphenylphosphoniumbromid
  • Mtppb
  • Phosphonium, methyltriphenyl-, bromide (1:1)
  • Triphenylmethylphosphonium bromide
  • See more synonyms
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