9-NBA

Base Information

• Chemical Name: 9-NBA
• CAS No.: 572-89-4
• Molecular Formula: C₂₀H₁₆
• Molecular Weight: 256.347
• Mol file: 572-89-4.mol

Synonyms:1,2-Benzanthrene,2,9-dimethyl- (3CI); 2,9-Dimethylbenz[a]anthracene

Chemical Property of 9-NBA

Chemical Property:

• Vapor Pressure: 2.75E-08mmHg at 25°C
• Boiling Point: 462.3°C at 760 mmHg
• Flash Point: 226.6°C
• PSA: 0.00000
• Density: 1.142g/cm³
• LogP: 5.76300

Purity/Quality:

98% ^*data from raw suppliers

2,9-Dimethylbenz[a]anthracene ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Uses: 2,9-Dimethylbenz[a]anthracene is a dimethylated polycyclic aromatic hydrocarbon with carcinogenic activity.

Technology Process of 9-NBA

There total 4 articles about 9-NBA 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: 60.0%

C29H24OP(1+)*Br(1-) → 2',6-Dimethyl-1,2-benzanthracen (572-89-4)

Guidance literature:

With sodium hydride; triphenylphosphine; In acetonitrile; mineral oil; at 40 ℃; for 12h; Inert atmosphere;

DOI:10.1021/acs.joc.6b00890

Reference yield:

(2,7-dimethyl-[1]naphthyl)-p-tolyl ketone → 2',6-Dimethyl-1,2-benzanthracen (572-89-4)

Guidance literature:

at 410 - 450 ℃;

DOI:10.1039/jr9320000456

Reference yield:

2,7-dimethylnaphthalene (582-16-1) → 2',6-Dimethyl-1,2-benzanthracen (572-89-4)

Guidance literature:

Multi-step reaction with 2 steps

1: AlCl₃; carbon disulfide / 0 °C

2: 410 - 450 °C

With carbon disulfide; aluminium trichloride;

DOI:10.1039/jr9320000456

upstream raw materials:

2,7-dimethylnaphthalene

Refernces