Description

[1,1'-Binaphthalene]-2,2'-Dimethanol, α2,α2'-Diethenyl-, (α2S,α2'S,1R)- is a high-purity, chiral chemical building block of significant importance in advanced organic synthesis. Its value lies in its rigid, axially chiral binaphthyl core, which is instrumental in constructing sophisticated molecular architectures for catalysis and materials science. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries who require enantiomerically pure intermediates for developing novel active ingredients and functional materials.

Application

This chiral binaphthyl derivative serves as a critical precursor in several high-value chemical sectors:

• Asymmetric Catalyst Ligand Synthesis: A key intermediate for preparing novel phosphine, phosphoramidite, and N-heterocyclic carbene (NHC) ligands used in enantioselective hydrogenation, cross-coupling, and other catalytic transformations.
• Pharmaceutical Intermediate: Used in the research and development of chiral active pharmaceutical ingredients (APIs), particularly for central nervous system (CNS) drugs and other therapeutics requiring high stereochemical purity.
• Advanced Material Precursor: Employed in the synthesis of chiral polymers, liquid crystals, and molecular devices where the binaphthyl unit imparts specific optical or electronic properties.
• Agrochemical Synthesis: Serves as a building block for creating enantiomerically pure herbicides, fungicides, and plant growth regulators.
• Chiral Stationary Phase (CSP) Development: A valuable starting material for synthesizing selectors used in High-Performance Liquid Chromatography (HPLC) columns for enantiomer separation.

Basic Information

Item	Detail
Product Name	[1,1'-Binaphthalene]-2,2'-Dimethanol, α2,α2'-Diethenyl-, (α2S,α2'S,1R)-
CAS No.	918826-13-8
Molecular Formula	C26H22O2
Molecular Weight	366.45 g/mol
Synonyms	(1R)-2,2'-Di(ethenyl)-1,1'-binaphthalene-2,2'-dimethanol; (S,S)-2,2'-Divinyl-1,1'-bi-2-naphthol; (S,S)-VANOL; DivinylBINOL; Chiral Divinyl Binaphthol; Axially Chiral Diol; (1R,2S)-2,2'-Diethenyl-[1,1'-binaphthalene]-2,2'-diol (tautomeric form); BINOL derivative
EINECS	Contact for details

Quality Control

Our production of [1,1'-Binaphthalene]-2,2'-Dimethanol, α2,α2'-Diethenyl-, (α2S,α2'S,1R)- adheres to stringent quality protocols to ensure batch-to-batch consistency and high enantiomeric excess (ee). Each lot undergoes comprehensive analysis, including Chiral HPLC for enantiopurity verification, ¹H/¹³C NMR for structural confirmation, and standard purity assays. A detailed Certificate of Analysis (COA) documenting identity, purity, chiral purity, and residual solvent levels is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This compound is light-sensitive (store away from light) and should be handled under an inert atmosphere when appropriate for prolonged use to prevent potential oxidation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residual Solvents (GC)	Meets ICH Q3C guidelines

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