Description

(4-Nitrobenzyl)Triphenylphosphonium Bromide is a versatile and highly reactive organophosphorus compound, widely recognized as a key reagent in organic synthesis. Its primary value lies in its role as a stable ylide precursor for the Wittig reaction, enabling the efficient synthesis of alkenes from carbonyl compounds. This makes it an indispensable tool for researchers and process chemists in the pharmaceutical, agrochemical, and advanced materials sectors, where precise carbon-carbon bond formation is critical.

Application

• Wittig Olefination Reagent: A fundamental reagent for the synthesis of substituted alkenes, particularly useful for introducing the 4-nitrobenzylidene group.
• Pharmaceutical Intermediate Synthesis: Employed in the construction of complex molecular scaffolds for active pharmaceutical ingredients (APIs) and drug discovery candidates.
• Agrochemical Manufacturing: Used in the synthesis of specialized intermediates for crop protection agents and herbicides.
• Ligand and Catalyst Preparation: Serves as a precursor for phosphine ligands or as a component in catalyst systems for various transition metal-catalyzed reactions.
• Material Science Research: Applied in the development of novel organic electronic materials, liquid crystals, and polymers via controlled alkene formation.
• Academic and R&D Laboratories: A staple reagent for methodological development and synthetic organic chemistry research.

Basic Information

Product Name	(4-Nitrobenzyl)Triphenylphosphonium Bromide
CAS No.	2767-70-6
Molecular Formula	C25H21BrNO2P
Molecular Weight	478.32 g/mol
Synonyms	4-Nitrobenzyltriphenylphosphonium Bromide; p-Nitrobenzyltriphenylphosphonium Bromide; (p-Nitrobenzyl)triphenylphosphonium Bromide; Phosphonium, (4-nitrobenzyl)triphenyl-, bromide; Triphenyl(4-nitrobenzyl)phosphonium Bromide; (4-Nitrobenzyl)triphenylphosphonium Bromide; NSC 3348; EINECS 220-456-3
EINECS	220-456-3

Quality Control

Our (4-Nitrobenzyl)Triphenylphosphonium Bromide is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the high standards required for synthetic applications. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability and consistent performance.

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 product is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation.

Specification

Item	Specification
Appearance	Yellow to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
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.