- 1,1'-Bi-2-naphthol
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- $12.00 / 25g
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2026-03-04
- CAS:602-09-5
- Min. Order: 1g
- Purity: 0.99
- Supply Ability: 25kg
- 1,1'-Bi-2-naphthol
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- $10.00 / 1KG
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2026-01-30
- CAS:602-09-5
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: 10 mt
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| | 1,1'-Bi-2-naphthol Basic information |
| | 1,1'-Bi-2-naphthol Chemical Properties |
| Melting point | 215-218 °C | | Boiling point | 388.69°C (rough estimate) | | density | 1g/cm | | refractive index | 1.7580 (estimate) | | storage temp. | Inert atmosphere,Room Temperature | | solubility | Soluble in dioxane (50 mg/mL). | | solubility | dioxane: 50 mg/mL, clear | | pka | 8.29±0.50(Predicted) | | form | Powder | | color | White to beige | | Water Solubility | insoluble | | Merck | 14,1226 | | BRN | 997518 | | InChI | 1S/C20H14O2/c21-17-11-9-13-5-1-3-7-15(13)19(17)20-16-8-4-2-6-14(16)10-12-18(20)22/h1-12,21-22H | | InChIKey | PPTXVXKCQZKFBN-UHFFFAOYSA-N | | SMILES | Oc1ccc2ccccc2c1-c3c(O)ccc4ccccc34 | | CAS DataBase Reference | 602-09-5(CAS DataBase Reference) | | NIST Chemistry Reference | 1,1'-Bi-2-naphthol(602-09-5) | | EPA Substance Registry System | [1,1'-Binaphthalene]-2,2'-diol (602-09-5) |
| Hazard Codes | T,Xi | | Risk Statements | 25-36-36/37/38 | | Safety Statements | 26-45-37/39-36 | | RIDADR | UN 2811 6.1/PG 3 | | WGK Germany | 3 | | RTECS | DU3106100 | | F | 10 | | TSCA | TSCA listed | | HazardClass | 6.1 | | PackingGroup | III | | HS Code | 29072900 | | Storage Class | 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects | | Hazard Classifications | Acute Tox. 3 Oral
Eye Irrit. 2
Skin Irrit. 2 | | Toxicity | LDLo orl-mus: 42 mg/kg AECTCV 14,111,85 |
| | 1,1'-Bi-2-naphthol Usage And Synthesis |
| Chemical Properties | 1,1′-Bi-2-naphthol is a white to yellowish gray crystalline powder. It is known to be soluble in methanol. Store in a cool and dark place at ambient temperatures for best keeping. | | Uses | 1,1'-Bi-2-naphthol is used as a chiral ligand in alkynylation, Diels-Alder and assymmetric Michael addition reactions. | | Uses | (+/-)-1,1'-Bi(2-naphthol) acts as chiral separation agents. It is widely used in chiral liquid crystal,medicines,spices etc,. | | Uses | Chiral ligand and auxiliary for asymmetric Michael addition reaction; enantioselective Diels-Alder reaction; alkynylation. | | Definition | ChEBI: (S)-(-)-1,1'-Bi-2-naphthol is a member of naphthols. | | Synthesis Reference(s) | Tetrahedron, 48, p. 9483, 1992 DOI: 10.1016/S0040-4020(01)88316-2
Tetrahedron Letters, 24, p. 3261, 1983 DOI: 10.1016/S0040-4039(00)88151-4 | | reaction suitability | reagent type: ligand | | Safety Profile | 1,1'-Bi-2-naphthol is incompatible with oxidizing agents and should not be stored or handled near them. Poison by ingestion and causes skin irritation along with serious eye irritation. When heated to decomposition it emits acrid smoke and irritatingvapors. | | Synthesis | A process for coupling 2-naphthols which comprises contacting a 2-naphthol dissolved in a polar acidic organic solvent in the presence of a catalytic amount of a catalyst which comprises a readily reducible form of a Group IB, Group VIII or manganese metal in the further presence of oxygen or a source of oxygen at a temperature between 0° and 200° C. under conditions such that a 1,1'-bi-2-naphthol is prepared wherein the product contains less than about 1 mole percent of binaphthenoquinones. | | Purification Methods | Crystallise the binaphthol from toluene or *benzene (10mL/g). When crystallised from chlorobenzene it has m 238o. Its solubility in dioxane is 5%. [Beilstein 6 IV 7020.] |
| | 1,1'-Bi-2-naphthol Preparation Products And Raw materials |
| Preparation Products | 1.1'-Binaphthyl-2.2'-diphemyl phosphine-->2-BROMO-1,1-BINAPHTHYL-->DINAPHTHO[1,2-B:1',2'-D]FURAN-->2,2'-DIBROMO-1,1'-BINAPHTHYL-->(R)-(+)-2,2'-BIS(METHOXYMETHOXY)-1,1'-BINAPHTHYL-->Porphine-->7H-DIBENZO[C,G]CARBAZOLE-->Ethanol, 2,2'-[(1R)-[1,1'-binaphthalene]-2,2'-diylbis(oxy)]bis--->PHOSPHINE OXIDE, [1,1'-BINAPHTHALENE]-2,2'-DIYLBIS-->2-CHLORO-1-(3-CHLORO-PHENYL)-ETHANOL
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