Description

Methoxymethylenetriphenylphosphorane is a specialized Wittig reagent, a key organophosphorus compound widely used in synthetic organic chemistry. Its primary value lies in its ability to facilitate the efficient synthesis of α,β-unsaturated esters and other alkene derivatives through the Wittig olefination reaction. This reagent is essential for research chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors, where precise carbon-carbon bond formation is critical.

Application

• Pharmaceutical Intermediate Synthesis: Key reagent for constructing alkene moieties in active pharmaceutical ingredients (APIs) and complex drug candidates.
• Agrochemical Production: Used in the synthesis of insecticide and herbicide intermediates requiring specific olefin structures.
• Fine Chemical Manufacturing: Enables the production of specialty chemicals, flavors, and fragrances through controlled olefination.
• Material Science Research: Employed in the synthesis of organic semiconductors, liquid crystals, and polymer precursors.
• Academic & R&D Laboratories: A fundamental tool for methodology development and complex molecule construction in organic synthesis.
• Synthesis of α,β-Unsaturated Esters: Specifically effective for preparing acrylate and related ester derivatives from carbonyl compounds.

Basic Information

Product Name	Methoxymethylenetriphenylphosphorane
CAS No.	20763-19-3
Molecular Formula	C₂₀H₁₉OP
Molecular Weight	306.34 g/mol
Synonyms	(Methoxymethylene)triphenylphosphorane; Methoxymethylene triphenyl phosphorane; Triphenyl(methoxymethylene)phosphorane; Methoxymethylidenetriphenylphosphorane; Formaldehyde methyl triphenylphosphonium ylide; Methyl (triphenylphosphoranylidene)acetate precursor ylide; Wittig reagent for acrylates
EINECS	244-045-2

Quality Control

Our Methoxymethylenetriphenylphosphorane is produced and tested under strict quality management protocols to ensure batch-to-batch consistency and high reactivity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and stability parameters. We adhere to relevant industry standards for fine chemicals, and specifications can be aligned with specific research or cGMP requirements upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C) under an inert atmosphere (e.g., nitrogen or argon) due to its sensitivity to oxidation and moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to pale yellow crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (NMR/Titration)	≥ 95.0%
Melting Point	Contact for details
Solubility	Soluble in THF, DCM, benzene; insoluble in water

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