Description

2-Butynyltriphenylphosphonium Bromide is a specialized organophosphorus salt widely utilized as a key reagent in synthetic organic chemistry. Its primary value lies in its role as a versatile Wittig reagent, enabling the efficient synthesis of alkynes and other complex molecular frameworks through ylide chemistry. This high-purity intermediate is essential for researchers and process chemists in the pharmaceutical, agrochemical, and advanced materials sectors, where precise carbon-carbon bond formation is critical.

Application

• Wittig Olefination Reactions: A crucial reagent for the synthesis of conjugated enynes and other alkene derivatives with high stereoselectivity.
• Pharmaceutical Intermediate Synthesis: Used in the construction of complex drug molecules, particularly those requiring specific alkyne-containing side chains or scaffolds.
• Agrochemical Active Ingredient Production: Employed in the synthesis of advanced crop protection agents and pesticides.
• Material Science Research: Serves as a building block for creating novel polymers, liquid crystals, and organic electronic materials.
• Academic & R&D Laboratories: A fundamental tool for methodological development and exploring new synthetic pathways in organic chemistry.
• Fine Chemical Manufacturing: Integral to the multi-step synthesis of specialty chemicals and high-value fragrance or flavor intermediates.

Basic Information

Product Name	2-Butynyltriphenylphosphonium Bromide
CAS No.	39616-23-4
Molecular Formula	C22H20BrP
Molecular Weight	395.27 g/mol
Synonyms	Triphenyl(2-butynyl)phosphonium Bromide; (2-Butyn-1-yl)triphenylphosphonium Bromide; 2-Butyn-1-yltriphenylphosphonium Bromide; But-2-yn-1-yltriphenylphosphonium Bromide; Phosphonium, (2-butynyl)triphenyl-, bromide; 1-Bromo-2-butyne triphenylphosphonium salt
EINECS	Contact for details

Quality Control

Our 2-Butynyltriphenylphosphonium Bromide is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including NMR, HPLC, and elemental analysis, to ensure high chemical purity and consistent performance. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with your specified requirements.

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 compound is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to maintain stability and reactivity.

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%
Heavy Metals	< 20 ppm

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