Description

1,2-Vinylenebis(Triphenylphosphonium Bromide) is a high-purity, versatile organophosphorus reagent widely used in organic synthesis. This compound matters for its critical role as a precursor in the Wittig reaction and related olefination processes, enabling the efficient formation of carbon-carbon double bonds. It is needed by R&D chemists and process development teams in the pharmaceutical, agrochemical, and advanced materials industries for synthesizing complex molecules and fine chemicals.

Application

• Key reagent in the Wittig reaction for the synthesis of alkenes and conjugated systems.
• Precursor for generating reactive ylides used in carbon-carbon bond formation.
• Intermediate in the synthesis of pharmaceutical actives and complex natural product analogs.
• Used in the development of agrochemicals, including pesticides and herbicides.
• Building block for functional materials, such as organic semiconductors and liquid crystals.
• Research chemical for methodology development in academic and industrial laboratories.
• Catalyst or co-catalyst in specific polymerization and organic transformation reactions.

Basic Information

Product Name	1,2-Vinylenebis(Triphenylphosphonium Bromide)
CAS No.	54770-27-3
Molecular Formula	C38H32Br2P2
Molecular Weight	718.42 g/mol
Synonyms	1,2-Bis(triphenylphosphonio)ethylene Dibromide; Ethene-1,2-diylbis(triphenylphosphonium) Dibromide; 1,2-Bis(triphenylphosphonium)ethylene Dibromide; Vinylenebis(triphenylphosphonium) Bromide; (Ethene-1,2-diyl)bis(triphenylphosphonium) Bromide; 1,2-Ethylenebis(triphenylphosphonium Bromide); Wittig Reagent Precursor
EINECS	Contact for details

Quality Control

Our 1,2-Vinylenebis(Triphenylphosphonium Bromide) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and elemental analysis, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory compliance 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 (moisture-sensitive) nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) when not in use to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%

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