(S)-(+)-1,1′-Binaphthyl-2,2′-diyl hydrogenphosphate
(S)-(+)-1,1′-Binaphthyl-2,2′-diyl hydrogenphosphate (CAS: 35193-64-7) is a chiral phosphoric acid with the molecular formula C20H13O4P and a molecular weight of 348.29 g/mol. This compound serves as a highly effective chiral Bronsted acid catalyst. It is extensively employed in asymmetric synthesis to promote enantioselective reactions, notably the Mannich reaction, enabling the creation of specific stereoisomers with high optical purity.
- IUPAC
- (S)-(+)-1,1′-Binaphthalene-2,2′-diyl hydrogen phosphate,(S)-4-Hydroxydinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-oxide
- Synonyms
- 35193-64-7C20H13O4P(S)-4-Hydroxydinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-oxide

Asymmetric Mannich Reaction Catalyst
This chiral phosphoric acid is a valuable catalyst for enantioselective Mannich reactions. It facilitates the stereoselective formation of carbon-carbon bonds, crucial for synthesizing complex chiral molecules.
Chiral Bronsted Acid Catalysis
As a potent chiral Bronsted acid, it catalyses a variety of asymmetric transformations. Its structure allows for effective proton transfer and stereochemical control in organic synthesis.
Synthesis of Chiral Intermediates
Used in the development of chiral building blocks for pharmaceuticals and fine chemicals. Its application ensures the desired enantiomeric excess in the target molecules.
| Molecular weight | 348.29 |
|---|---|
| Empirical formula | C20H13O4P |
| Assay | 97% |
| Optical activity | [α]22/D +595°, c = 1.35 in methanol |
| Application | Used as a chiral Bronsted acid catalyst in the enantoselective Mannich reaction.1 |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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′-Binaphthyl-2,2′-diyl hydrogenphosphate used for?
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It is primarily used as a chiral Bronsted acid catalyst in enantioselective reactions, such as the Mannich reaction, for asymmetric synthesis.
What are the CAS number and formula for this compound?
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The CAS number is 35193-64-7, and the empirical formula is C20H13O4P.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this product with an assay of 97%. It is not represented as USP, BP, EP, or other pharmacopoeial grades.
What are the safety and handling recommendations?
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Appropriate personal protective equipment, including eyeshields and gloves, should be worn. A type N95 (US) or type P1 (EN143) respirator filter is recommended. The product has a WGK Germany rating of 3.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions expertly packs, handles, and exports fine chemicals globally, adhering to all relevant regulations for safe and compliant transit.
How can I request a sample or quote for (S)-(+)-1,1′-Binaphthyl-2,2′-diyl hydrogenphosphate?
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Please contact our sales team via the website or email to request a sample or a detailed quotation.
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