[(Methoxy)methyl]triphenylphosphonium Chloride

• CAT Number: R017991
• CAS Number: 4009-98-7
• Molecular Formula: C20H20ClOP
• Molecular Weight: 342.80
• Purity: ≥95%
• Synonyms: (Methoxymethyl)triphenylphosphonium Chloride; (Methoxymethyl)triphenylphosphonium Chloride; NSC 49223; Triphenyl(methoxymethyl)phosphonium Chloride
• Storage: Store at -20C
• IUPAC Name: methoxymethyl(triphenyl)phosphanium;chloride
• InChI: InChI=1S/C20H20OP.ClH/c1-21-17-22(18-11-5-2-6-12-18,19-13-7-3-8-14-19)20-15-9-4-10-16-20;/h2-16H,17H2,1H3;1H/q+1;/p-1
• InChIKey: SJFNDMHZXCUXSA-UHFFFAOYSA-M
• SMILES: COC[P+](C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3.[Cl-]

[(Methoxy)methyl]triphenylphosphonium chloride（Cat No.:R017991）is a specialized phosphonium salt widely used in Wittig-type olefination reactions for the synthesis of vinyl ethers and other valuable intermediates. Featuring a methoxymethyl substituent, it acts as a stabilized ylide precursor, allowing for the selective formation of alkenes under mild conditions. Its triphenylphosphonium core ensures stability and solubility in polar organic solvents. This reagent is especially valuable in complex molecule construction, including pharmaceuticals, agrochemicals, and natural product analogs. It provides a reliable route to carbon–carbon double bonds in synthetic organic chemistry.