Ethyl 2-(triphenylphosphoranylidene)propionate CAS 5717-37-3

【Chemical Name】 Ethyl 2-(triphenylphosphoranylidene)propionate
【Other Name】 (Ethoxycarbonylethylidene)triphenylphosphorane; Ethyl (triphenylphosphoranylidene)propanoate; Carbethoxymethylenetriphenylphosphorane; Triphenylphosphoranylidene propionic acid ethyl ester; (1-Ethoxy-1-oxopropan-2-ylidene)triphenylphosphorane
【CAS No.】 5717-37-3
【Molecular Formula】 C₂₃H₂₃O₂P
【Molecular Weight】 362.40 g/mol
【Product properties】
Purity: ≥98% 
Melting point: 148–152 °C
Solubility: Soluble in dichloromethane, chloroform, ethyl acetate, and methanol; slightly soluble in hexane
Stability: Stable under normal conditions, but sensitive to strong acids and oxidizing agents
【Storage】 Store in a cool, dry, well-ventilated place. Keep container tightly closed and protected from light. Store at room temperature away from moisture and incompatible materials.
【Packing】 Available in 5g, 10g, 25g, 50g, 100g, 250g, 500g glass bottles or PE bottles. Custom packaging available upon request.
【Application】 Used as a key intermediate and raw material for organic synthesis, pharmaceuticals, and agrochemicals. Also widely employed in Wittig olefination reactions to form carbon-carbon double bonds and for the synthesis of more complex compounds, including unsaturated esters, natural products, and heterocycles.
【Product Specification】 Assay ≥98%. Also available in 95%, 97%, and 99% purity grades. Custom specifications upon request.