Description

(R)-Binaphthylcyclopentylphosphite is a chiral organophosphorus compound of significant interest in advanced chemical synthesis. This compound matters as a highly effective chiral ligand or catalyst precursor, enabling precise control over stereoselective reactions critical for producing high-value intermediates. Industries such as pharmaceutical manufacturing, agrochemical research, and specialty chemical development need it for creating enantiomerically pure products, where its unique steric and electronic properties offer superior selectivity and yield.

Application

• As a chiral ligand in asymmetric hydrogenation and hydroformylation reactions.
• As a catalyst precursor in the synthesis of enantiomerically pure pharmaceutical intermediates.
• For use in stereoselective carbon-carbon and carbon-heteroatom bond-forming reactions.
• In the development of novel agrochemicals requiring specific chiral configurations.
• As a key component in materials science for creating chiral polymers or frameworks.
• For academic and industrial research in organometallic chemistry and catalysis.

Basic Information

Product Name	(R)-Binaphthylcyclopentylphosphite
CAS No.	379268-58-3
Molecular Formula	C25H21O2P
Molecular Weight	384.41 g/mol
Synonyms	(R)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl Cyclopentyl Ester; (R)-BINAP-CP; (R)-1,1'-Binaphthalene-2,2'-diyl Cyclopentyl Phosphite; (R)-(+)-2,2'-Bis(cyclopentyloxyphosphino)-1,1'-binaphthyl; (R)-BINOL-CP Phosphite; (R)-H8-BINAP-CP Phosphite Ligand; (R)-Cyclopentyl Binaphthylphosphite
EINECS	Contact for details

Quality Control

Our (R)-Binaphthylcyclopentylphosphite is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including chiral purity verification by HPLC and structural confirmation by NMR and IR spectroscopy. Certificates of Analysis (COA) detailing all specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C under an inert atmosphere (e.g., argon or nitrogen) due to its moisture-sensitive (hygroscopic) nature. Allow the container to reach room temperature before opening to minimize moisture ingress.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Chiral Purity (HPLC)	≥ 99.0% ee
Water Content (KF)	≤ 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.