Description

4,4'-Bis(Diphenylphosphino)-2 is a high-purity, bidentate phosphine ligand essential for advanced catalytic processes. Its primary value lies in its ability to form stable complexes with transition metals, significantly enhancing reaction selectivity and efficiency in cross-coupling reactions. This compound is critically needed by researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for the development and production of complex organic molecules.

Application

• Pharmaceutical Intermediate Synthesis: A key ligand in palladium-catalyzed cross-coupling reactions (e.g., Suzuki, Heck, Sonogashira) for constructing complex drug molecules and active pharmaceutical ingredients (APIs).
• Agrochemical Manufacturing: Used in catalytic processes to create novel, high-performance herbicides, fungicides, and insecticides with improved efficacy.
• Material Science & OLED Development: Facilitates the synthesis of organic semiconductors and light-emitting materials for next-generation displays and electronic devices.
• Homogeneous Catalysis Research: Serves as a versatile ligand in academic and industrial R&D for developing new catalytic systems and exploring novel synthetic pathways.
• Fine Chemical Production: Enables the efficient and selective synthesis of specialty chemicals, flavors, and fragrances.

Basic Information

Product Name	4,4'-Bis(Diphenylphosphino)-2
CAS No.	220998-37-8
Molecular Formula	C30H24P2
Molecular Weight	446.46 g/mol
Synonyms	2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl (BINAP) derivative; 4,4'-Bis(diphenylphosphino)-2,2'-binaphthyl; 4,4'-Bis(diphenylphosphino)-2,2'-binaphthalene; 4,4'-Bis(diphenylphosphino)-[1,1'-binaphthalene]-2,2'-diyl; 4,4'-Bis(diphenylphosphino)-2,2'-dinaphthyl; 4,4'-Bis(diphenylphosphino)-2,2'-binaphthyl ligand; 4,4'-Bis(diphenylphosphino)-2,2'-binaphthyl (4,4'-BINAP derivative)
EINECS	Contact for details

Quality Control

Our 4,4'-Bis(Diphenylphosphino)-2 is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes rigorous analytical testing, including HPLC, NMR, and elemental analysis, to confirm identity and meet stringent specifications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Due to its sensitivity to oxidation, this material should be stored under an inert atmosphere (argon or nitrogen) in a cool, dry place at room temperature (15-25°C). Minimize exposure to air and moisture during handling to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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