3,3'-Dimethyl-1,1'-binaphthalene

Base Information

• Chemical Name: 3,3'-Dimethyl-1,1'-binaphthalene
• CAS No.: 34042-82-5
• Molecular Formula: C22H18
• Molecular Weight: 282.3783
• Hs Code.: 2902909090
• Mol file: 34042-82-5.mol

Synonyms:3,3'-Dimethyl-1,1'-binaphthalene;1,1'-Binaphthyl,3,3'-dimethyl;1,1'-Binaphthalene,3,3'-dimethyl;3,3'-Dimethyl-1,1'-binaphthyl;

Chemical Property of 3,3'-Dimethyl-1,1'-binaphthalene

Chemical Property:

• Boiling Point: 418.9°Cat760mmHg
• Flash Point: 202.5°C
• PSA: 0.00000
• Density: 1.105g/cm³
• LogP: 6.27680

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 3,3'-Dimethyl-1,1'-binaphthalene

There total 3 articles about 3,3'-Dimethyl-1,1'-binaphthalene which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 83.0%

4,4′-dibromo-3,3′-dimethyl-1,1′-binaphthalene (74866-25-4) → 3,3'-Dimethyl-1,1'-binaphthyl (34042-82-5)

Guidance literature:

With n-butyllithium; In tetrahydrofuran; hexane; at -78 ℃; for 4h;

DOI:10.1021/acs.joc.8b00642

Reference yield: 23.0%

2-Methylnaphthalene (91-57-6,34468-07-0) → 3,3'-Dimethyl-1,1'-binaphthyl (34042-82-5)

Guidance literature:

With potassium fluoride; In methanol; Further Variations:; Reagents; Solvents; Product distribution; Electrochemical reaction;

DOI:10.1016/S0040-4020(02)00495-7

Reference yield:

1-bromo-2-methylnaphtalene (2586-62-1) → 3,3'-Dimethyl-1,1'-binaphthyl (34042-82-5)

Guidance literature:

Multi-step reaction with 2 steps

1: boron trifluoride diethyl etherate; lead(IV) tetraacetate / acetonitrile

2: n-butyllithium / hexane; tetrahydrofuran / 4 h / -78 °C

With n-butyllithium; boron trifluoride diethyl etherate; lead(IV) tetraacetate; In tetrahydrofuran; hexane; acetonitrile;

DOI:10.1021/acs.joc.8b00642

upstream raw materials:

2-Methylnaphthalene

4,4′-dibromo-3,3′-dimethyl-1,1′-binaphthalene

1-bromo-2-methylnaphtalene