Cas no 27653-95-8 (2-Pentanone,4-methyl-1-(triphenylphosphoranylidene)-)

2-Pentanone,4-methyl-1-(triphenylphosphoranylidene)- is a specialized organophosphorus compound featuring a phosphoranylidene functional group attached to a methyl-substituted pentanone backbone. This reagent is primarily utilized in Wittig-type reactions, where it serves as a key intermediate for the synthesis of alkenes through carbonyl olefination. Its triphenylphosphine moiety enhances reactivity and selectivity in forming carbon-carbon double bonds, making it valuable in organic synthesis and pharmaceutical applications. The compound’s stability under controlled conditions and compatibility with various substrates contribute to its utility in complex molecular transformations. It is typically handled under inert atmospheres to prevent decomposition and ensure optimal performance in synthetic workflows.
2-Pentanone,4-methyl-1-(triphenylphosphoranylidene)- structure
27653-95-8 structure
Product Name:2-Pentanone,4-methyl-1-(triphenylphosphoranylidene)-
CAS No:27653-95-8
MF:C24H25OP
MW:360.428467512131
MDL:MFCD09031092
CID:251334
PubChem ID:15016570
Update Time:2025-10-29

2-Pentanone,4-methyl-1-(triphenylphosphoranylidene)- Chemical and Physical Properties

Names and Identifiers

    • 2-Pentanone,4-methyl-1-(triphenylphosphoranylidene)-
    • [(3-Methylbutyryl)methylene]triphenylphosphorane
    • isobutyrylmethylenetriphenylphosphorane
    • 4-Methyl-1-(triphenyl-lambda*5*-phosphanylidene)-pentan-2-one
    • AKOS015962812
    • LUFPSOYGOSKNGD-UHFFFAOYSA-N
    • SCHEMBL8877562
    • 27653-95-8
    • Isobutylcarbonylmethylenetriphenylphosphorane
    • 4-METHYL-1-(TRIPHENYL-LAMBDA5-PHOSPHANYLIDENE)-PENTAN-2-ONE
    • MDL： MFCD09031092
    • Inchi： 1S/C24H25OP/c1-20(2)18-21(25)19-26(22-12-6-3-7-13-22,23-14-8-4-9-15-23)24-16-10-5-11-17-24/h3-17,19-20H,18H2,1-2H3
    • InChI Key： LUFPSOYGOSKNGD-UHFFFAOYSA-N
    • SMILES： P(=CC(CC(C)C)=O)(C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1

Computed Properties

  • Exact Mass: 360.16445
  • Monoisotopic Mass: 360.164302414g/mol
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 0
  • Hydrogen Bond Acceptor Count: 1
  • Heavy Atom Count: 26
  • Rotatable Bond Count: 6
  • Complexity: 436
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • XLogP3: 4.8
  • Topological Polar Surface Area: 17.1?2

Experimental Properties

  • PSA: 17.07
  • LogP: 4.39790

2-Pentanone,4-methyl-1-(triphenylphosphoranylidene)- Pricemore >>

Related Categories No. Product Name Cas No. Purity Specification Price update time Inquiry
eNovation Chemicals LLC
K78093-1g
4-METHYL-1-(TRIPHENYL-LAMBDA5-PHOSPHANYLIDENE)-PENTAN-2-ONE
 27653-95-8 95%
1g
 $565 2025-02-19
eNovation Chemicals LLC
K78093-1g
4-METHYL-1-(TRIPHENYL-LAMBDA5-PHOSPHANYLIDENE)-PENTAN-2-ONE
 27653-95-8 95%
1g
 $565 2025-02-22
eNovation Chemicals LLC
K78093-1g
4-METHYL-1-(TRIPHENYL-LAMBDA5-PHOSPHANYLIDENE)-PENTAN-2-ONE
 27653-95-8 95%
1g
 $565 2024-05-25

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