Description

3-(Triphenylphosphoranylidene)-2,5-Pyrrolidinedione CAS NO 28118-79-8 is a specialized Wittig-Horner type reagent, a key building block in advanced organic synthesis. This compound is valued for its role in facilitating carbon-carbon bond formation, particularly in the synthesis of complex, unsaturated heterocycles and fine chemicals. It is primarily utilized by research and development chemists in the pharmaceutical, agrochemical, and advanced materials sectors for constructing novel molecular architectures.

Application

• Pharmaceutical Intermediate Synthesis: A crucial reagent for constructing α,β-unsaturated lactams and other heterocyclic cores found in active pharmaceutical ingredients (APIs).
• Agrochemical Research: Used in the development of novel herbicides, fungicides, and insecticides requiring specific heterocyclic frameworks.
• Material Science: Employed in the synthesis of organic semiconductors, ligands for catalysts, and specialty polymers.
• Academic & Industrial R&D: Serves as a versatile tool for methodology development and the synthesis of complex natural product analogs or novel chemical entities.
• Fine Chemical Production: Applied in the multi-step synthesis of high-value, low-volume specialty chemicals and dyes.

Basic Information

Product Name	3-(Triphenylphosphoranylidene)-2,5-Pyrrolidinedione
CAS No.	28118-79-8
Molecular Formula	C24H20NO2P
Molecular Weight	385.40 g/mol
Synonyms	2,5-Pyrrolidinedione, 3-(triphenylphosphoranylidene)-; 3-(Triphenylphosphoranylidene)pyrrolidine-2,5-dione; N-(Triphenylphosphoranylidene)maleimide; Maleimide, N-(triphenylphosphoranylidene)-; Wittig-Horner Reagent of Maleimide; Triphenylphosphoranylidene Maleimide; (Triphenylphosphoranylidene)maleimide
EINECS	Contact for details

Quality Control

Our production of 3-(Triphenylphosphoranylidene)-2,5-Pyrrolidinedione adheres to stringent in-process controls to ensure batch-to-batch consistency and high purity. Each lot is fully characterized using techniques including NMR, HPLC, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

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 in a dry environment to prevent moisture absorption, which may affect reactivity and stability. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Yellow to pale brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%

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