Description

Ethyl 2-(Triphenylphosphoranylidene)Propionate is a high-value Wittig reagent, a key organophosphorus compound used in the synthesis of α,β-unsaturated esters. This versatile reagent is critical for constructing carbon-carbon double bonds with precise stereochemical control, enabling the production of complex organic molecules. It is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials sectors who require reliable, high-purity intermediates for fine chemical synthesis.

Application

• Pharmaceutical Intermediate Synthesis: Key reagent for the stereoselective synthesis of α,β-unsaturated esters, which are crucial building blocks in active pharmaceutical ingredients (APIs).
• Agrochemical Production: Used in the preparation of complex molecules for crop protection agents and pesticides.
• Fine Chemical Manufacturing: Enables the production of specialty chemicals, flavors, and fragrances requiring specific alkene geometries.
• Academic & Industrial R&D: A staple reagent in organic synthesis laboratories for method development and novel compound library generation.
• Material Science Precursor: Serves as a monomer or intermediate in the synthesis of polymers and advanced functional materials.

Basic Information

Product Name	Ethyl 2-(Triphenylphosphoranylidene)Propionate
CAS No.	5717-37-3
Molecular Formula	C23H23O2P
Molecular Weight	362.40 g/mol
Synonyms	Ethyl (Triphenylphosphoranylidene)propanoate; Ethyl 2-(Triphenyl-λ5-phosphanylidene)propanoate; (Ethoxycarbonylmethylidene)triphenylphosphorane; Ethyl (Triphenylphosphoranylidene)acetate, methyl-substituted; Wittig Reagent for α-Methylacrylates; ETPP
EINECS	227-211-4

Quality Control

Our Ethyl 2-(Triphenylphosphoranylidene)Propionate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including NMR, HPLC, and titration, to ensure high chemical purity and consistent performance as a Wittig reagent. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) for prolonged storage or after opening to maintain stability and reactivity.

Specification

Item	Specification
Appearance	White to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.