Description

(1,3-Dihydro-7-Methoxy-3-Oxo-1-Isobenzofuranyl)Triphenylphosphonium Bromide is a specialized phosphonium salt reagent, widely recognized for its utility as a key intermediate in advanced organic synthesis. Its primary value lies in its role as a Wittig reagent precursor, enabling the efficient construction of complex molecular frameworks. This high-purity compound is essential for research and development in pharmaceutical chemistry, agrochemical synthesis, and materials science, where precise and reliable building blocks are critical for innovation.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of novel active pharmaceutical ingredients (APIs), particularly in the development of compounds with complex heterocyclic structures.
• Wittig Reaction Reagent: Serves as a precursor for generating reactive ylides used in the stereoselective formation of carbon-carbon double bonds (alkenes), a fundamental transformation in organic chemistry.
• Agrochemical Synthesis: Employed in the research and production of advanced crop protection agents and herbicides that require specific molecular architectures.
• Materials Science Research: Used in the development of specialty polymers, liquid crystals, and organic electronic materials where specific phosphonium-based moieties are required.
• Academic & Industrial R&D: A valuable tool for chemists in university laboratories and corporate R&D centers exploring new synthetic methodologies and reaction pathways.
• Fine Chemical Production: Integral to the multi-step synthesis of complex fragrance and flavor ingredients that demand high chemical precision.

Basic Information

Product Name	(1,3-Dihydro-7-Methoxy-3-Oxo-1-Isobenzofuranyl)Triphenylphosphonium Bromide
CAS No.	887644-98-6
Molecular Formula	C28H22BrO3P
Molecular Weight	517.35 g/mol
Synonyms	7-Methoxy-3-oxo-1-isobenzofuranylidenetriphenylphosphorane Bromide; 7-Methoxyphthalidylidenetriphenylphosphorane Bromide; (7-Methoxy-3-oxophthalanylidene)triphenylphosphorane Bromide; Wittig Reagent Precursor 887644-98-6; Triphenyl(7-methoxy-3-oxo-1,3-dihydro-2-benzofuran-1-ylidene)phosphonium Bromide; 1-(Triphenylphosphoranylidene)-7-methoxyisobenzofuran-3(1H)-one Bromide
EINECS	Contact for details

Quality Control

Our (1,3-Dihydro-7-Methoxy-3-Oxo-1-Isobenzofuranyl)Triphenylphosphonium Bromide is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity, typically exceeding 97%. Each lot is characterized by advanced analytical techniques including NMR (1H, 13C, 31P), HPLC, and mass spectrometry to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled 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) after opening to prevent degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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