Description

Cyclopropylidenetriphenylphosphorane is a highly reactive and versatile ylide reagent widely used in organic synthesis. Its primary value lies in its ability to facilitate the synthesis of cyclopropane rings and other strained ring systems through Wittig and related olefination reactions. This compound is essential for research chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors who require precise methods for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate Synthesis: Key reagent for constructing cyclopropane-containing bioactive molecules and active pharmaceutical ingredients (APIs).
• Agrochemical Research: Used in the development of novel pesticides and herbicides featuring cyclopropane motifs for enhanced activity.
• Material Science: Building block for creating specialized polymers and organic electronic materials with unique ring-strained structures.
• Academic & Process Chemistry: A fundamental tool for methodology development, total synthesis of natural products, and scaling novel reaction pathways.
• Fine Chemical Production: Employed in the custom synthesis of specialty chemicals and complex organic compounds for various industrial applications.

Basic Information

Product Name	Cyclopropylidenetriphenylphosphorane
CAS No.	14633-95-5
Molecular Formula	C21H19P
Molecular Weight	302.35 g/mol
Synonyms	Triphenyl(cyclopropylidene)phosphorane; Cyclopropylidenetriphenyl-λ5-phosphane; (Cyclopropylmethylene)triphenylphosphorane; Cyclopropylidene(triphenyl)phosphorane; Phosphorane, cyclopropylidenetriphenyl-; Phosphorane, triphenyl(cyclopropylidene)-; Wittig reagent (cyclopropylidene)
EINECS	Contact for details

Quality Control

Our Cyclopropylidenetriphenylphosphorane is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including NMR and HPLC, to ensure high purity and consistent performance. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are available for all shipments to support your quality assurance and regulatory needs.

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). Due to its hygroscopic nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and decomposition.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95%
Water Content (KF)	≤ 1.0%

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