ChemicalBook > CAS DataBase List > (R)-(+)-1,1'-Bi-2-naphthol

(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
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(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)
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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
10
TSCA 
No
HazardClass 
6.1
PackingGroup 
III
HS Code 
29071590
Toxicity
LD50 orally in Rabbit: 113 mg/kg
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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.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
8.14774
Product name
(R)-(+)-1,1′-Binaphthyl-2,2′-diol
Purity
forsynthesis
Packaging
1g
Price
$34.5
Updated
2024/03/01
Sigma-Aldrich
Product number
8.14774
Product name
(R)-(+)-1,1′-Binaphthyl-2,2′-diol
Purity
forsynthesis
Packaging
10g
Price
$101
Updated
2024/03/01
Sigma-Aldrich
Product number
246948
Product name
(R)-(+)-1,1′-Bi(2-naphthol)
Purity
99%
Packaging
1g
Price
$30.4
Updated
2024/03/01
Sigma-Aldrich
Product number
246948
Product name
(R)-(+)-1,1′-Bi(2-naphthol)
Purity
99%
Packaging
5g
Price
$177
Updated
2024/03/01
TCI Chemical
Product number
B1142
Product name
(R)-(+)-1,1'-Bi-2-naphthol
Purity
>98.0%(HPLC)(T)
Packaging
5g
Price
$65
Updated
2024/03/01
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(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.]

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(R)-(+)-1,1'-Bi-2-naphthol Suppliers

JIANGSU B-WIN CHEMICAL INDUSTRY CO.,LTD.
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0510-85840252 400-005-1800
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0510-85840253
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843925888@qq.com
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China
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Changzhou shuicao chemical Nes material Industry?Co.,Ltd.
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13861152845
Email
987349505@qq.com
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China
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Shanghai Arbor Chemical Co., Ltd.
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021-021-60451683 15021268886
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+86-21-60451682
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sales@arborchemical.com
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China
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J & K SCIENTIFIC LTD.
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010-82848833 400-666-7788
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86-10-82849933
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jkinfo@jkchemical.com
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Meryer (Shanghai) Chemical Technology Co., Ltd.
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4006608290; 18621169109
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86-21-61259102
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market03@meryer.com
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+49 3493/605470
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Germany
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821-50328103-801 18930552037
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86-21-50328109
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Alfa Aesar
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400-6106006
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021-67582001/03/05
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China
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TCI (Shanghai) Development Co., Ltd.
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021-67121386
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021-67121385
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Sales-CN@TCIchemicals.com
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BeiJing Hwrk Chemicals Limted
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View Lastest Price from (R)-(+)-1,1'-Bi-2-naphthol manufacturers

Hebei Dangtong Import and export Co LTD
Product
(R)-(+)-1,1'-Bi-2-naphthol 18531-94-7
Price
US $294.00-288.00/kg
Min. Order
1kg
Purity
99.99%
Supply Ability
200Tons
Release date
2023-03-28
Shanghai UCHEM Inc.
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
Henan Bao Enluo International TradeCo.,LTD
Product
(R)-(+)-1,1'-Bi-2-naphthol 18531-94-7
Price
US $200.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
1000tons
Release date
2023-07-18

18531-94-7, (R)-(+)-1,1'-Bi-2-naphtholRelated Search:


  • (R)-(+)-BI-2-NAPHTHOL
  • (R)-[1,1']-Binaphth-2-ol, (R)-BINOL
  • (+)-2,2μ-Dihydroxy-1,1μ-dinaphthyl, (R)-(+)-1,1μ-Binaphthalene-2,2μ-diol, (R)-BINOL
  • (R)-(+)-1,1'-Bi-2-naphthol 99%
  • [aR,(+)]-1,1'-Binaphthalene-2,2'-diol
  • [aR,(+)]-Dinaphthol
  • R-(+)-1_Bi-2-naphthol
  • (R)-(+)-1,1'-Bi-2-na
  • (1R)-2,2'-Dihydroxy-[1,1']-binaphthyl
  • (1R)-1,1'-Binaphthalene-2,2'-diol, (R)-BINOL
  • (R)-(+)-BINOL (R)-(+)-2,2'-Dihydroxy-1,1'-binaphthyl
  • (R)-(+)-1,1''-BINAPHTHYL-2,2''-DIOL FOR SY
  • e: (R)-(+)-1,1'-Bi-2-naphtho
  • (R)-1,1'-Binaphthalene-2,2'-diol, (R)-BINOL
  • (R)-(+)-1,1'-Bi-2-naphthol (R)-(+)-2,2'-Dihydroxy-1,1'-dinaphthyl
  • (R)-(+)-1,1'-Bi-2-naphthol, >=99.5%
  • Dihydroxydinaphthylwhitepowder
  • (1R)- [1,1'-Binaphthalene]-2,2'-diol
  • (<i>R</i>)-(+)-1,1'-Bi-2-naphthol
  • (R)-2,2'-Dihydroxy-[1,1']-binaphthyl 99%
  • DI-B-NAPHTHOL
  • AURORA KA-7212
  • BI-2-NAPHTHOL
  • (-)-2,2'-DIHYDROXY-1,1'-DINAPHTHYL
  • (+)-2,2'-DIHYDROXY-1,1'-DINAPHTHYL
  • (+/-)-2,2'-DIHYDROXY-1,1'-DINAPHTHYL
  • 2,2'-DIHYDROXY-1,1'-DINAPHTHYL
  • 2,2'-DINAPHTHOL
  • (R)-(+)-1,1'-BIS(2-NAPHTHOL)
  • (R)-(+)-1,1'-BINAPHTHYL-2,2'-DIOL
  • (R)-[1,1]-BINAPHTHALENYL-2,2'-DIOL
  • R(+)-1,1'-BINAPHTHALENE-2,2'-DIOL
  • (R)-(+)-1,1'-BI(2,2'-NAPHTHOL)
  • (R)-(+)-1,1'-BI-2-NAPHTHOL
  • (R)-(+)-1,1-BI-2-NAPHTHOL
  • (R)-1,1'-BI-2-NAPHTHOL
  • R-1,1-BI-2-NAPHTHOL
  • R-(+)-2,2'-DIHYDROXY-1,1'-DINAPHTHYL
  • (R)-(+)-2,2'-DIHYDROXY-1,1'-BINAPHTHYL
  • (R)-(+)-2,2'-DIHYDROXY-1,1-BINAPHTHYL
  • (R)-(+)-BINOL
  • (R)-BINOL
  • (S)-(-)-1,1'-BI(2,2'-NAPHTHOL)
  • (S)-[1,1'-BINAPHTHALENE]-2,2'-DIOL
  • S(-)-1,1'-BINAPHTHALENE-2,2'-DIOL
  • (S)-(-)-1,1'-BINAPHTHYL-2,2'-DIOL
  • (S)-[1,1]-BINAPHTHALENYL-2,2'-DIOL
  • (R,S)-BINOL
  • S-(-)-2,2'-DIHYDROXY-1,1'-DINAPHTHYL
  • 1,1'-BINAPHTHYL-2,2'-DIOL
  • [1,1']BINAPHTHALENYL-2,2'-DIOL
  • 1,1'-BI-2,2'-NAPHTHOLS
  • (+/-)-1,1'-BINAPHTHALENE-2,2'-DIOL
  • AKOS 90560
  • (R)-(+)-1,1’-bi-2-nanphthol
  • (R)-(+)-1,1'-BI-2-NAPHTHOL, 99% (99% EE/
  • R-(+)-1,1'-Binaphthyl-2.2'-dio
  • R-(+)-1,1'-BI-2-NAPHTHOL/ (R)-(+)BINOL