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  • Product Name1,1'-Binaphthalene-2,2'-diol
  • CasNo. 602-09-5
  • MFC20H14O2
  • MW286.33
  • Purity
  • Appearancewhite to beige powder
  • Packing
  • Contact usInquiry

Product Details

CasNo： 602-09-5

MF： C20H14O2

Appearance： white to beige powder

Chinese Manufacturer Supply High Purity 1,1'-Binaphthalene-2,2'-diol 602-09-5 Efficient Shipping

  • Molecular Formula:C20H14O2
  • Molecular Weight:286.33
  • Appearance/Colour:white to beige powder 
  • Melting Point:215-218 °C 
  • Refractive Index:1.7580 (estimate) 
  • Boiling Point:462.104 °C at 760 mmHg 
  • PKA:8.29±0.50(Predicted) 
  • Flash Point:218.932 °C 
  • PSA：40.46000 
  • Density:1.303 g/cm3 
  • LogP:5.07120 

1,1'-Bi-2-naphthol(Cas 602-09-5) Usage

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.

Synthesis Reference(s)

Tetrahedron, 48, p. 9483, 1992 DOI: 10.1016/S0040-4020(01)88316-2Tetrahedron Letters, 24, p. 3261, 1983 DOI: 10.1016/S0040-4039(00)88151-4

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.

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.]

 

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Paragraph 0034-0045, (2021/03/13)

The invention relates to a method for ef...

602-09-5 Process route

naphthalen-2-ylamine
91-59-8

naphthalen-2-ylamine

β-naphthol
135-19-3

β-naphthol

7H-dibenzo[c,g]carbazole
194-59-2

7H-dibenzo[c,g]carbazole

1,1'-binaphthalene-2,2'-diamine
4488-22-6,18531-95-8

1,1'-binaphthalene-2,2'-diamine

2-amino-2’-hydroxy-1,1’-binaphthyl
134532-03-9,137848-28-3,137848-29-4

2-amino-2’-hydroxy-1,1’-binaphthyl

1,1'-bi-2-naphthol
602-09-5

1,1'-bi-2-naphthol

Conditions
Conditions Yield
With rac-methylbenzylamine; In methanol; for 48h; Ambient temperature;
6 % Chromat.
2 % Chromat.
1 % Chromat.
85%
naphthalen-2-ylamine
91-59-8

naphthalen-2-ylamine

β-naphthol
135-19-3

β-naphthol

1,1'-binaphthalene-2,2'-diamine
4488-22-6,18531-95-8

1,1'-binaphthalene-2,2'-diamine

(R)-2-amino-2'-hydroxy-1,1'-binaphthyl
137848-28-3

(R)-2-amino-2'-hydroxy-1,1'-binaphthyl

(S)-(-)-2'-amino-[1,1'-binaphthalene]-2-ol
137848-29-4

(S)-(-)-2'-amino-[1,1'-binaphthalene]-2-ol

1,1'-bi-2-naphthol
602-09-5

1,1'-bi-2-naphthol

Conditions
Conditions Yield
With benzylamine; copper dichloride; In methanol; for 48h; Yields of byproduct given; Ambient temperature;
30%
With benzylamine; copper dichloride; In methanol; for 48h; Yield given. Title compound not separated from byproducts; Ambient temperature;
30%

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