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CAS RN: 137848-28-3 | Product Number: A2316
(R)-(+)-2-Amino-2'-hydroxy-1,1'-binaphthyl
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Purity: >98.0%(HPLC)
Synonyms:
- (R)-(+)-1-(2-Amino-1-naphthyl)-2-naphthol
- (R)-(+)-NOBIN
- (R)-(+)-2'-Amino-1,1'-binaphthalen-2-ol
Product Documents:
| Size | Unit Price | Shanghai | Tianjin | Japan* |
|---|---|---|---|---|
| 100MG |
¥1,295.00
|
Contact Us | 1 | 12 |
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| Product Number | A2316 |
| Purity / Analysis Method | >98.0%(HPLC) |
| Molecular Formula / Molecular Weight | C__2__0H__1__5NO = 285.35 |
| Physical State (20 deg.C) | Solid |
| Storage Temperature | Room Temperature (Recommended in a cool and dark place, <15°C) |
| CAS RN | 137848-28-3 |
| Reaxys Registry Number | 5380793 |
| PubChem Substance ID | 125307453 |
| MDL Number | MFCD01882346 |
Specifications
Properties (reference)
| Melting Point | 173 °C |
| Specific Rotation | 120° (C=1,THF) |
GHS
| Pictogram |
|
| Signal Word | Danger |
| Hazard Statements | H318 : Causes serious eye damage. H413 : May cause long lasting harmful effects to aquatic life. |
| Precautionary Statements | P501 : Dispose of contents/ container to an approved waste disposal plant. P273 : Avoid release to the environment. P280 : Wear eye protection/ face protection. P305 + P351 + P338 + P310 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/doctor. |
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Application
Asymmetric synthesis of amino acids using NOBIN as a phase-transfer catalyst
Typical procedure (asymmetric alkylation of (2) under phase-transfer catalysis condition): Finely ground NaOH (2 g), glycine equivalent (2) (2.1 g) and (R)-NOBIN (0.14 g) in anhydrous CH2Cl2 (30 mL) are stirred under Ar at 15-20 °C for 3 min. Then BnBr (1 g) is added, and the mixture is stirred for 8 min. The reaction mixture is quenched by the addition of aq. AcOH (10 mL) and diluted with CH2Cl2 (30 mL). The organic layer is separated and concentrated. The residue is purified by flash chromatography on silica gel (eluent: CHCl3/acetone) to give (3) (2.3 g, 90%, 97 % ee). The crude complex (3) is crystallized from C6H6/acetone to give the enantiomerically pure product (3) (1.9 g, 74 %).
References
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