2606-85-1

Basic information

• Product Name: 2-Methyl-3,4-benzophenanthrene
• Synonyms: 2-Methyl-3,4-benzophenanthrene
• CAS NO: 2606-85-1
• Molecular Formula: C₁₉H₁₄
• Molecular Weight: 242.33
• Mol File: 2606-85-1.mol
• Article Data: 10

Chemical Properties

• Melting Point: 81.75°C
• Boiling Point: 320.14°C (rough estimate)
• Flash Point: 217.8°C
• Appearance: /
• Density: 1.1011 (estimate)
• Vapor Pressure: 7.61E-08mmHg at 25°C
• Refractive Index: 1.4750 (estimate)
• CAS DataBase Reference: 2-Methyl-3,4-benzophenanthrene(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Methyl-3,4-benzophenanthrene(2606-85-1)
• EPA Substance Registry System: 2-Methyl-3,4-benzophenanthrene(2606-85-1)

Safety Data

• Hazardous Substances Data: 2606-85-1(Hazardous Substances Data)

Usage

General Description

2-Methyl-3,4-benzophenanthrene, also known as 3,4-Benzophenanthrene-2-methyl, is a polycyclic aromatic hydrocarbon (PAH) that consists of four fused benzene rings. It is a white crystalline solid with a molecular formula of C20H14. 2-Methyl-3,4-benzophenanthrene is commonly found in coal tar and is produced as a byproduct of the incomplete combustion of organic matter. It is considered a potential environmental pollutant and is classified as a possible human carcinogen, with the potential to cause genetic mutations. This chemical is also of interest in the field of organic chemistry, where it is used as a building block in the synthesis of other organic compounds.

InChI:InChI=1/C19H14/c1-13-6-7-15-9-11-16-10-8-14-4-2-3-5-17(14)19(16)18(15)12-13/h2-12H,1H3

Upstream product

• 917-64-6 methyl magnesium iodide 
• 408313-45-1 4,4a,5,6-tetrahydro-3H-benzo[c]phenanthren-2-one 
• 35160-96-4 2-(4-methylstyryl)naphthalene 
• 91-22-5 quinoline 
• 106-42-3 para-xylene 
• 2378-86-1 4-methylbenzyltriphenylphosphonium bromide 
• 104-81-4 4-Methylbenzyl bromide 
• 59305-28-1 LiCH₂C₆H₄-4-Me 
• 1047647-70-0 1,1-difluoro-2-(2-phenylethyl)-4-(4-methylphenyl)but-1-ene 
• 1047647-79-9 2-methyl-5,6,7,8-tetrahydrobenzo[c]phenanthrene 
• 110148-83-9 7-methyl-2-phenethyl-3,4-dihydro-2H-naphthalen-1-one 
• 110050-91-4 7-methyl-2-phenethyl-1,2,3,4-tetrahydro-[1]naphthol 
• 22009-37-6 7-methyl-3,4-dihydro-2H-naphthalen-1-one 
• 35160-96-4 2-[2-(4-methylphenyl)-(E)-ethenyl]-naphthalene 

Downstream Products

• 38840-77-6 2-[(E)-2-(2-Fluoro-phenyl)-vinyl]-benzo[c]phenanthrene 
• 20508-11-6 (Z)-1-Phenyl-2-(2-benzophenanthrenyl)ethylene 
• 20508-12-7 (E)-1-Phenyl-2-(2-benzophenanthrenyl)ethylene 
• 195-19-7 benzo[c]phenathrene 
• 27208-37-3 cyclopenta[c,d]pyrene 
• 203-12-3 benzo[ghi]fluoranthene 
• 1206795-73-4 5-methylbenzo[ghi]fluoranthene 
• 36524-19-3 2-[(E)-2-(4-tert-Butyl-phenyl)-vinyl]-benzo[c]phenanthrene 
• 36393-47-2 2-[(E)-2-(3,5-Dimethyl-phenyl)-vinyl]-benzo[c]phenanthrene 
• 36393-45-0 2-((E)-2-m-Tolyl-vinyl)-benzo[c]phenanthrene 
• 36393-46-1 2-((E)-2-p-Tolyl-vinyl)-benzo[c]phenanthrene 
• 61172-27-8 2-((E)-4-Phenyl-but-1-en-3-ynyl)-benzo[c]phenanthrene 
• 61172-26-7 2-((Z)-4-Phenyl-but-1-en-3-ynyl)-benzo[c]phenanthrene 
• 35160-98-6 (benzo[g]phenanthren-3-ylmethyl)triphenylphosphonium bromide 

Relevant articles and documents

Methylarene-based PAH synthesis via domino cyclization of 1, 1-difluoro-1-alkenes

Polycyclic aromatic hydrocarbons (PAHs) containing 4-7 benzene rings were synthesized via a methylarene-based protocol. Trimethyl[2-(trifluoromethyl)allyl]silane was electrophilically benzylated with Ar1CH2Br (prepared from Ar1CH3) to afford 2-trifluoromethyl-1-alkenes that were in turn nucleophilically benzylated with Ar2CH2Li (prepared from Ar2CH3) through an SN2-type reaction to produce 1, 1-difluoroethylenes, which are cyclization precursors bearing two 2-arylethyl groups. Magic acid efficiently promoted the domino FriedelCrafts-type cyclization of these precursors, followed by dehydrogenation that enabled the connection among two aryl groups (Ar1 and Ar2) by forming two benzene rings between them, facilitating the synthesis of the desired higher-order PAHs. With the proposed protocol, the combination of even a limited number of methylarenes can yield a variety of PAHs in diverse configurations.

Domino Friedel-crafts-type cyclizations of difluoroalkenes promoted by the α-cation-stabilizing effect of fluorine: An efficient method for synthesizing angular PAHs

In order to synthesize polycyclic aromatic hydrocarbons with nonlinear arrangements (angular PAHs), acid-promoted domino cyclizations of 1,1-difluoroalk-1-enes and 1,1-difluoroalka-1,3-dienes were studied. 1,1-Difluoroalkenes, each bearing two aryl substituents, were regioselectively protonated with FSO3H·SbF5 to generate fluorine-stabilized carbocations, which readily underwent domino Friedel-Crafts-type cyclizations to give carbocycles based on 6/n/m/6 ring systems (n,m=5-7) in good to high yields. Protonation of 1,1-difluoroalka-1,3- dienes took place at their electron-rich methylene (CH2) carbon atoms in the presence of milder acids such as camphorsulfonic acid and trifluoromethanesulfonic acid. Domino cyclizations of the resulting fluorine-stabilized allylic carbocations afford carbocycles based on 6/6/6/6 or 6/6/5/6 ring systems in high yields.

Palladium-catalyzed intramolecular C-H activation: A synthetic approach towards polycyclic aromatic hydrocarbons

A simple and convenient synthetic protocol for the construction of polycyclic aromatic hydrocarbons has been developed. A variety of phenanthrene, benzo[c]phenanthrene and chrysene derivatives was synthesized via Pd-catalyzed intramolecular C-H activation followed by acid-catalyzed water elimination.