Description

1.1'-Binaphthyl-2.2'-Diphemyl Phosphine CAS NO 98327-87-8 is a high-value, chiral phosphine ligand essential for asymmetric catalysis. Its unique sterically hindered, atropisomeric structure enables precise control over stereoselectivity in critical bond-forming reactions. This compound is primarily required by research institutions and manufacturers in the pharmaceutical and fine chemical industries for developing novel active ingredients and advanced materials.

Application

• As a chiral ligand in asymmetric hydrogenation, cross-coupling, and hydroformylation reactions.
• Critical for the synthesis of pharmaceutical intermediates requiring high enantiomeric purity.
• Used in the development of advanced materials and specialty chemicals with specific stereochemical properties.
• Employed in academic and industrial R&D for methodology development in organic synthesis.
• Facilitates the production of agrochemicals and flavors & fragrances where stereochemistry impacts bioactivity or sensory profile.
• Utilized in the preparation of metal-phosphine complexes for catalytic applications.

Basic Information

Product Name	1.1'-Binaphthyl-2.2'-Diphemyl Phosphine
CAS No.	98327-87-8
Molecular Formula	C32H22P2
Molecular Weight	476.46 g/mol
Synonyms	(R)- or (S)-BINAP; 2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl; BINAP Ligand; (R)-(+)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl; (S)-(-)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl; 1,1'-Binaphthalene-2,2'-diylbis[diphenylphosphine]; (R)-(+)-BINAP; (S)-(-)-BINAP
EINECS	Contact for details

Quality Control

Our 1.1'-Binaphthyl-2.2'-Diphemyl Phosphine is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chiral purity (enantiomeric excess) determination by HPLC, to ensure it meets the high standards required for asymmetric synthesis. Certificates of Analysis (COA) detailing identity, purity, and chiral purity are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) in a cool, dry, well-ventilated place. Due to its sensitivity to oxidation, containers should be purged with inert gas after each opening.

Specification

Item	Specification
Appearance	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Chiral Purity (Enantiomeric Excess)	≥ 99.0% ee (R or S isomer)
Melting Point	241 - 246 °C
Specific Rotation	Contact for details
Heavy Metals	< 20 ppm

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