(R)-(+)-1,1'-Bi-2-naphthol
- CAS No.
- 18531-94-7
- Chemical Name:
- (R)-(+)-1,1'-Bi-2-naphthol
- Synonyms
- (R)-BINOL;(R,S)-BINOL;1,1'-BINAPHTHYL-2,2'-DIOL;(+)-BINOL;AKOS 90560;DI-B-NAPHTHOL;BI-2-NAPHTHOL;(R)-(+)-BINOL;AURORA KA-7212;2,2'-DINAPHTHOL
- CBNumber:
- CB3380426
- Molecular Formula:
- C20H14O2
- Molecular Weight:
- 286.32
- MOL File:
- 18531-94-7.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/4/28 16:56:32
Melting point | 215-218 °C |
---|---|
alpha | 35.5 º (c=1, THF) |
Boiling point | 388.69°C (rough estimate) |
Density | 1.301 |
refractive index | 36.0 ° (C=1, THF) |
storage temp. | Store below +30°C. |
solubility | dioxane: 50 mg/mL, clear |
form | Powder |
pka | 8.29±0.50(Predicted) |
color | white to off-white |
optical activity | [α]21/D +34°, c = 1 in THF |
Water Solubility | Insoluble in water. Solubility in THF within almost transparency). Soluble in dioxane 50 mg/mL. |
Merck | 14,1226 |
BRN | 3616837 |
CAS DataBase Reference | 18531-94-7(CAS DataBase Reference) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | GHS06 |
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---|---|---|---|---|---|---|---|---|---|---|
Signal word | Danger | |||||||||
Hazard statements | H301-H315-H319 | |||||||||
Precautionary statements | P301+P310+P330-P302+P352-P305+P351+P338 | |||||||||
Hazard Codes | T,Xi | |||||||||
Risk Statements | 25-36-36/37/38 | |||||||||
Safety Statements | 26-45-24/25-36 | |||||||||
RIDADR | UN 2811 6.1/PG 3 | |||||||||
WGK Germany | 3 | |||||||||
RTECS | DU3106100 | |||||||||
F | 10 | |||||||||
TSCA | No | |||||||||
HazardClass | 6.1 | |||||||||
PackingGroup | III | |||||||||
HS Code | 29071590 | |||||||||
Toxicity | LD50 orally in Rabbit: 113 mg/kg | |||||||||
NFPA 704 |
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(R)-(+)-1,1'-Bi-2-naphthol price More Price(10)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich(India) | 8.14774 | (R)-(+)-1,1′-Binaphthyl-2,2′-diol for synthesis | 18531-94-7 | 1G | ₹2260 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 246948 | (R)-(+)-1,1′-Bi(2-naphthol) 99% | 18531-94-7 | 1G | ₹3961.95 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 8.14774 | (R)-(+)-1,1′-Binaphthyl-2,2′-diol for synthesis | 18531-94-7 | 10G | ₹4910.01 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 246948 | (R)-(+)-1,1′-Bi(2-naphthol) 99% | 18531-94-7 | 5G | ₹10944.08 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 246948 | (R)-(+)-1,1′-Bi(2-naphthol) 99% | 18531-94-7 | 10G | ₹14137.45 | 2022-06-14 | Buy |
(R)-(+)-1,1'-Bi-2-naphthol Chemical Properties,Uses,Production
Chemical Properties
white to light yellow crystal powde
Uses
Chiral binapthol imminium salt precursor. Salts were used for an asymmetric epoxidation of olefins.
Purification Methods
Dissolve it in cold 2.5N NaOH, extract with CH2Cl2, and acidify with 5% HCl. Collect the white precipitate and recrystallise it from aqueous EtOH and dry it in a vacuum [Akimoto & Yamada Tetrahedron 27 5999 1971]. It is optically stable in dioxane-water (100o/24hours). Racemisation: 72% in 1.2N HCl at 100o/24hours and 68% in 0.67M KOH in BuOH at 118o/23hours [Kyba et al. J Am Chem Soc 95 2693 1973]. It has also been crystallised from *C6H6 (solubility is 1%) using Norite or aqueous EtOH after chromatography through silica gel, eluting with Me2CO/*C6H6. [Kyba et al. J Org Chem 42 4173 1977; see also Brussee & Jansen Tetrahedron Lett 24 3261 1983, Akimoto & Yamada Tetrahedron 27 5999 1971, Beilstein 6 IV 7020.]
(R)-(+)-1,1'-Bi-2-naphthol Preparation Products And Raw materials
Raw materials
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SOLFYN INTERNATIONAL LLP | +91-9321772608 +91-9321772608 | Mumbai, India | 105 | 58 | Inquiry |
Evans Fine Chem | +91-9821340302 +91-9821340302 | Maharashtra, India | 286 | 58 | Inquiry |
JSK Chemicals | +919879767970 | Gujarat, India | 3756 | 58 | Inquiry |
A.J Chemicals | 91-9810153283 | New Delhi, India | 6124 | 58 | Inquiry |
TCI Chemicals (India) Pvt. Ltd. | 1800 425 7889 | New Delhi, India | 6778 | 58 | Inquiry |
Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6913 | 58 | Inquiry |
Ms Life Sciences | 08048372386Ext 826 | Hyderabad, India | 341 | 58 | Inquiry |
Avra Synthesis Pvt Ltd | +914027175796 | New Delhi, India | 1606 | 30 | Inquiry |
Anand Agencies | 91-20-24454597 | Maharashtra, India | 2337 | 58 | Inquiry |
Synthesis With Catalysts Private Limited | 08048250110Ext 908 | Delhi, India | 59 | 58 | Inquiry |
Supplier | Advantage |
---|---|
SOLFYN INTERNATIONAL LLP | 58 |
Evans Fine Chem | 58 |
JSK Chemicals | 58 |
A.J Chemicals | 58 |
TCI Chemicals (India) Pvt. Ltd. | 58 |
Alfa Aesar | 58 |
Ms Life Sciences | 58 |
Avra Synthesis Pvt Ltd | 30 |
Anand Agencies | 58 |
Synthesis With Catalysts Private Limited | 58 |
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