(R)-(+)-1,1'-Bi-2-naphthol
- Product Name
- (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
- Formula Weight
- 286.32
- MOL File
- 18531-94-7.mol
(R)-(+)-1,1'-Bi-2-naphthol Property
- 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
- 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
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H301Toxic if swalloed
H315Causes skin irritation
H319Causes serious eye irritation
- Precautionary statements
-
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 8.14774
- Product name
- (R)-(+)-1,1′-Binaphthyl-2,2′-diol
- Purity
- forsynthesis
- Packaging
- 1g
- Price
- $34.5
- Updated
- 2024/03/01
- Product number
- 8.14774
- Product name
- (R)-(+)-1,1′-Binaphthyl-2,2′-diol
- Purity
- forsynthesis
- Packaging
- 10g
- Price
- $101
- Updated
- 2024/03/01
- Product number
- 246948
- Product name
- (R)-(+)-1,1′-Bi(2-naphthol)
- Purity
- 99%
- Packaging
- 1g
- Price
- $30.4
- Updated
- 2024/03/01
- Product number
- 246948
- Product name
- (R)-(+)-1,1′-Bi(2-naphthol)
- Purity
- 99%
- Packaging
- 5g
- Price
- $177
- Updated
- 2024/03/01
- Product number
- B1142
- Product name
- (R)-(+)-1,1'-Bi-2-naphthol
- Purity
- >98.0%(HPLC)(T)
- Packaging
- 5g
- Price
- $65
- Updated
- 2024/03/01
(R)-(+)-1,1'-Bi-2-naphthol Chemical Properties,Usage,Production
Chemical Properties
white to light yellow crystal powde
Uses
Chiral binapthol imminium salt precursor. Salts were used for an asymmetric epoxidation of olefins.
Definition
ChEBI: (S)-(-)-1,1'-Bi-2-naphthol is a member of naphthols.
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
Preparation Products
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View Lastest Price from (R)-(+)-1,1'-Bi-2-naphthol manufacturers
- Product
- (R)-(+)-1,1'-Bi-2-naphthol 18531-94-7
- Price
- US $100.00-70.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 5000
- Release date
- 2024-08-16
- Product
- (R)-(+)-(1,1'-binaphthalene)-2,2'-diol 18531-94-7
- Price
- US $35.00-285.00/g
- Min. Order
- 1g
- Purity
- 0.99
- Supply Ability
- 25kg
- Release date
- 2023-10-12
- Product
- (R)-(+)-1,1'-Bi-2-naphthol 18531-94-7
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 99.99%
- Supply Ability
- 250KG
- Release date
- 2024-11-30