157929

Methyl(triphenylphosphoranyliden)acetat

98%

• Synonym(e): (Carbomethoxymethylen)-triphenylphosphoran, Methoxycarbonylmethylen-triphenylphosphoran
• Lineare Formel: (C₆H₅)₃P=CHCO₂CH₃
• CAS-Nummer: 2605-67-6
• Molekulargewicht: 334.35
• Beilstein: 618430
• EG-Nummer: 220-018-4
• MDL-Nummer: MFCD00008455
• UNSPSC-Code: 12352108
• PubChem Substanz-ID: 24849709
• NACRES: NA.22

Eigenschaften

• Qualitätsniveau: 200
• Assay: 98%
• Form: powder
• Eignung der Reaktion: reaction type: C-C Bond Formation
• mp (Schmelzpunkt): 168-172 °C (lit.)
• Funktionelle Gruppe: ester; phosphine
• SMILES String: COC(=O)C=P(c1ccccc1)(c2ccccc2)c3ccccc3
• InChI: 1S/C21H19O2P/c1-23-21(22)17-24(18-11-5-2-6-12-18,19-13-7-3-8-14-19)20-15-9-4-10-16-20/h2-17H,1H3
• InChIKey: NTNUDYROPUKXNA-UHFFFAOYSA-N

Beschreibung

Anwendung

Wittig reagent for the two-carbon homologation of aldehydes to α,β-unsaturated esters. Also used in an efficient synthesis of pyrazoles via reaction with methyl diazoacetate in the presence of triethylamine.

Sicherheitshinweise

• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: Eyeshields, Gloves, type N95 (US)