Description

1,1-Binaphthalene-2,2-Diol, 3,3-Dimethyl- is a specialized chiral diol derivative of binaphthol, a compound of significant importance in asymmetric synthesis and materials science. Its value lies in its rigid, axially chiral structure, which makes it an excellent precursor for synthesizing advanced ligands, catalysts, and functional polymers. This high-purity intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors who require precise stereochemical control in their processes.

Application

• Chiral Ligand & Catalyst Synthesis: Serves as a key building block for creating novel phosphine, phosphoramidite, and N-heterocyclic carbene (NHC) ligands used in asymmetric hydrogenation, cross-coupling, and other enantioselective transformations.
• Pharmaceutical Intermediates: Employed in the research and development of active pharmaceutical ingredients (APIs) where chiral purity is critical for efficacy and safety.
• Advanced Material Precursors: Used in the synthesis of chiral polymers, liquid crystals, and molecular recognition systems for sensors and separation technologies.
• Agrochemical Development: Acts as an intermediate for creating enantiomerically pure herbicides, fungicides, and plant growth regulators.
• Academic & Industrial R&D: A valuable tool for chemists in universities and corporate labs exploring new methodologies in stereoselective synthesis.

Basic Information

Product Name	1,1-Binaphthalene-2,2-Diol, 3,3-Dimethyl-
CAS No.	55442-34-7
Molecular Formula	C22H18O2
Molecular Weight	314.38 g/mol
Synonyms	3,3'-Dimethyl-1,1'-bi-2-naphthol; 3,3'-Dimethyl-[1,1'-binaphthalene]-2,2'-diol; 3,3'-Dimethyl-BINOL; 3,3'-Dimethyl-1,1'-binaphthyl-2,2'-diol; 3,3'-Dimethyl-2,2'-dihydroxy-1,1'-binaphthyl; 3,3'-Dimethyl-(R)-BINOL; 3,3'-Dimethyl-(S)-BINOL
EINECS	Contact for details

Quality Control

Our production of 1,1-Binaphthalene-2,2-Diol, 3,3-Dimethyl- adheres to stringent quality management protocols to ensure batch-to-batch consistency and high chemical purity. Each lot is characterized using advanced analytical techniques including HPLC, GC, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing identity, purity, chiral purity (enantiomeric excess), and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

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). Keep away from heat sources and incompatible materials. For long-term storage under an inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Chiral Purity (Enantiomeric Excess)	≥ 99.0% (R or S) or Racemic
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.