150096-60-9

Basic information

• Product Name: 2-METHYLBENZO[E]INDENE
• Synonyms: 2-METHYL-3H-BENZ[E]INDENE;2-METHYLBENZO[E]INDENE;2-Methyl-3H-cyclopenta[a]naphthalene;2-Methyl-3H-bene[e]indene
• CAS NO: 150096-60-9
• Molecular Formula: C14H12
• Molecular Weight: 180.25
• Mol File: 150096-60-9.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 320.8 °C at 760 mmHg
• Flash Point: 154.2 °C
• Appearance: /
• Density: 1.099 g/cm³
• Vapor Pressure: 0.000581mmHg at 25°C
• Refractive Index: 1.66
• CAS DataBase Reference: 2-METHYLBENZO[E]INDENE(CAS DataBase Reference)
• NIST Chemistry Reference: 2-METHYLBENZO[E]INDENE(150096-60-9)
• EPA Substance Registry System: 2-METHYLBENZO[E]INDENE(150096-60-9)

Safety Data

• Hazardous Substances Data: 150096-60-9(Hazardous Substances Data)

Usage

General Description

2-Methylbenzo[e]indene, also known as 2-MeBI, is a polycyclic aromatic hydrocarbon that is found in fossil fuels, particularly in gasoline and diesel exhaust. It is classified as a hazardous air pollutant and has been found to be a potential human carcinogen. Exposure to 2-MeBI has been linked to respiratory irritation and has also been shown to have mutagenic and genotoxic effects. The compound is formed during the incomplete combustion of organic matter and is commonly found in urban air pollution. Overall, 2-Methylbenzo[e]indene poses a significant risk to human health and the environment, making it an important target for regulatory and control measures.

InChI:InChI=1/C14H12/c1-10-8-12-7-6-11-4-2-3-5-13(11)14(12)9-10/h2-8H,9H2,1H3

Upstream product

• 91-20-3 naphthalene 
• 150096-51-8 2-methyl-1,2-dihydro-3H-cyclopenta[a]naphthalen-3-one 
• 150096-57-4 2-methyl-2,3-dihydro-cyclopenta[a]naphthalen-1-one 
• 163801-85-2 2,3-dihydro-1-hydroxy-2-methyl-1H-benz[e]indene 

Downstream Products

• 1243064-10-9 (3-benzyl-1H-inden-1-yl)(2-methylbenz[e]-1H-inden-1-yl)-dimethylsilane 
• 150096-53-0 dimethyl bis(2-methyl-4,5-benzoindenyl)silane 

Relevant articles and documents

Process for preparing 1-indanones

The present invention relates to a process for preparing 1-indanones of formula I: and isomers thereof, wherein R1, R2, R3, R4, R5, and R6 independently represent H or a C1-C20 hydrocarbon group or R1 and R2 or R2 and R3 or R3 and R4 and/or R5 and R6 together with the carbon atoms to which they are attached form a saturated or unsaturated 5- or 6-membered ring, said hydrocarbon group and/or said ring optionally containing one or more hetero atoms, said ring optionally being substituted with a C1-C4 hydrocarbon group, said process comprising reacting a compound of formula II: wherein R1, R2, R3, R4, R5, and R6 have the same meaning as defined above, with a chlorinating agent, followed by reaction with a Friedel-Crafts catalyst. The invention further relates to the preparation of the corresponding indenes.

Production of bridged metallocene complexes and intermediates therefor

Bridged metallocene compounds are produced by a process of promising commercial utility for plant-sized operations. One of the key steps of the process involves converting a deprotonated silicon-, germanium- or tin-containing ligand into the metallocene. Preferably, and in accordance with an embodiment of the invention, this is accomplished to great advantage by adding a diamine adduct of a Group IV, V, or VI metal tetrahalide to a solution or slurry formed from a deprotonated silicon-, germanium- or tin-containing ligand and an organic liquid medium so as to form a metallocene. The overall process of the invention involves the direct conversion of benzoindanones to benzoindanols which, without isolation, are converted to benzoindenes. Thereupon the benzoindenes are bridged by deprotonating the benzoindenes with a strong base such as butyllithium and reacting the resultant deprotonated product with a suitable silicon-, germanium- or tin-containing bridging reactant such as dichlorodimethylsilane. The resultant bridged product is deprotonated with a strong base such as butyllithium and reacted with a suitable Group IV, V, or VI metal-containing reactant such as ZrCl4 to provide a silicon-, germanium- or tin-bridged Group IV, V, or VI metal complex, such as a dihydrocarbylsilyl-bridged zirconocene complex.

Process for preparing cyclopentadienyl group-containing silicon compound or cyclopentadienyl group-containing germanium compound

Disclosed is a process for preparing a cyclopentadienyl group-containing silicon compound or a cyclopentadienyl group-containing germanium compound, comprising reacting (i) a lithium, sodium or potassium salt of a cyclopentadiene derivative with (ii) a silicon halide compound or a germanium halide compound in the presence of a cyanide or a thiocyanate. The cyanide or the thiocyanate is preferably a copper salt. According to the process of the invention, a cyclopentadienyl group-containing silicon compound or a cyclopentadienyl group-containing germanium compound, which is very useful for the preparation of a metallocene complex catalyst component, can be prepared in a high yield for a short period of time.