(S)-(+)-1,1′-Bi-2-naphthyl ditosylate
(S)-(+)-1,1′-Bi-2-naphthyl ditosylate (CAS: 128544-06-9) is a chiral organic compound with the molecular formula C34H26O6S2 and a molecular weight of 594.70 g/mol. This BINOL derivative serves as a crucial chiral auxiliary and building block in asymmetric synthesis. It is widely employed in the preparation of enantiomerically pure compounds, particularly in the development of novel catalysts and ligands for stereoselective reactions, enabling precise control over molecular chirality in complex organic transformations.
- Synonyms
- C34H26O6S2
Chiral Ligand Precursor
This ditosylate is a valuable precursor for synthesising advanced chiral ligands used in transition metal-catalyzed asymmetric reactions. Its defined stereochemistry allows for the construction of complex catalytic systems for enantioselective transformations.
Asymmetric Synthesis
It acts as a chiral building block or auxiliary in enantioselective synthesis. Its BINOL backbone provides a rigid chiral scaffold essential for inducing stereoselectivity in various organic reactions.
Catalyst Development
The compound is utilized in research and development for creating novel chiral catalysts. These catalysts are instrumental in producing enantiomerically enriched products, a critical requirement in pharmaceutical and fine chemical manufacturing.
| Molecular weight | 594.70 |
|---|---|
| Empirical formula | C34H26O6S2 |
| Assay | 97% |
| Optical activity | [α]20/D +29°, c = 1% in chloroform |
| Optical purity | ee: 98% (HPLC) |
| Melting point | 177-181 °C(lit.) |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is (S)-(+)-1,1′-Bi-2-naphthyl ditosylate primarily used for?
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It is primarily used as a chiral building block and precursor for chiral ligands in asymmetric synthesis and catalyst development for stereoselective reactions.
What are the CAS number and formula for (S)-(+)-1,1′-Bi-2-naphthyl ditosylate?
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The CAS number is 128544-06-9, and the empirical formula is C34H26O6S2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies (S)-(+)-1,1′-Bi-2-naphthyl ditosylate with an assay of 97% and an optical purity (ee) of 98% by HPLC. This product is supplied for research and laboratory use and is not represented as USP, BP, EP, or pharmaceutical grade.
What are the safety and handling precautions for this compound?
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This compound is a Warning substance, indicated by GHS07, with hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Recommended personal protective equipment includes a dust mask type N95, eyeshields, and gloves. Handle in a well-ventilated area and avoid breathing dust.
How is this chemical packed and shipped?
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We ensure secure and compliant packaging for domestic and international shipments, adhering to all relevant regulations for hazardous materials.
How can I request a sample or quote?
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To request a sample or a quotation, please contact our sales team via the website or directly through the provided contact details, specifying the product CAS number and required quantity.
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