Description

(Triphenylphosphoranylidene)Ketene is a highly reactive and versatile Wittig-type reagent used for the synthesis of allenes and other complex organic frameworks. This compound matters for its unique ability to act as a ketene equivalent in cycloaddition and annulation reactions, enabling efficient routes to valuable intermediates. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials industries for constructing novel molecular architectures.

Application

• Pharmaceutical Intermediate Synthesis: Key building block for the preparation of allene-containing drug candidates and complex heterocycles.
• Agrochemical Research: Used in the development of novel active ingredients with unique structural motifs.
• Material Science: Employed in the synthesis of specialized polymers and organic electronic materials.
• Academic & Industrial R&D: A valuable tool for methodology development in organic synthesis, particularly in [2+2] and other pericyclic reactions.
• Fine Chemical Production: Serves as a precursor for synthesizing specialty chemicals and ligands for catalysis.

Basic Information

Item	Details
Product Name	(Triphenylphosphoranylidene)Ketene
CAS No.	73818-55-0
Molecular Formula	C20H15OP
Molecular Weight	302.31 g/mol
Synonyms	Triphenylphosphanylideneketene; Ketene, (triphenylphosphoranylidene)-; Triphenylphosphoranylideneketene; (Triphenyl-λ5-phosphanylidene)ethenone; Witting-Ketene Reagent
EINECS	Contact for details

Quality Control

Our (Triphenylphosphoranylidene)Ketene is produced and handled under strict quality protocols to ensure batch-to-batch consistency and reliability for sensitive synthetic applications. Each lot undergoes comprehensive analytical characterization. A Certificate of Analysis (COA) detailing purity, identity, and other critical parameters is provided and available upon request to support your quality management systems.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) to maintain stability and prevent decomposition.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95%
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.