Description

(4-Bromo-2-Butenyl)Triphenylphosphonium Bromide is a high-purity, versatile organophosphonium salt widely used as a key reagent in advanced organic synthesis. Its primary value lies in its role as a Wittig reagent, enabling the efficient construction of complex organic molecules with high stereoselectivity. This compound is essential for researchers and process chemists in the pharmaceutical, agrochemical, and fine chemical industries, where it facilitates the synthesis of novel active ingredients and complex intermediates.

Application

• Wittig Olefination Reactions: As a specialized Wittig reagent for the synthesis of conjugated dienes and other complex alkenes with precise control over stereochemistry.
• Pharmaceutical Intermediate Synthesis: A critical building block in the multi-step synthesis of active pharmaceutical ingredients (APIs), particularly those containing specific alkene functionalities.
• Agrochemical Development: Used in the research and production of advanced crop protection agents and herbicides.
• Material Science Research: Employed in the synthesis of organic ligands, polymers, and advanced materials with tailored properties.
• Academic & Industrial R&D: A fundamental reagent for method development and exploratory synthesis in organic chemistry laboratories worldwide.

Basic Information

Product Name	(4-Bromo-2-Butenyl)Triphenylphosphonium Bromide
CAS No.	53142-03-3
Molecular Formula	C22H21Br2P
Molecular Weight	476.19 g/mol
Synonyms	4-Bromo-2-butenyltriphenylphosphonium bromide; (4-Bromobut-2-en-1-yl)triphenylphosphonium bromide; (γ-Bromoallyl)triphenylphosphonium bromide; 2-Buten-1-yl, 4-bromo-, triphenylphosphonium bromide; Phosphonium, (4-bromo-2-butenyl)triphenyl-, bromide; Triphenyl(4-bromo-2-butenyl)phosphonium bromide; Wittig Reagent (4-Bromo-2-butenyl)
EINECS	Contact for details

Quality Control

Our (4-Bromo-2-Butenyl)Triphenylphosphonium Bromide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements of research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and reliability for your critical processes.

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 (moisture-sensitive) nature, the container must be kept tightly sealed and under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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