232-54-2

Basic information

• Product Name: 1H-Benz[e]indene
• Synonyms: 1-a-Naphthindene;1H-Cyclopenta[a]naphthalene; 6,7-Benzindene; Benzindene
• CAS NO: 232-54-2
• Molecular Formula: C13H10
• Molecular Weight: 166.222
• Mol File: 232-54-2.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: 1H-Benz[e]indene(CAS DataBase Reference)
• NIST Chemistry Reference: 1H-Benz[e]indene(232-54-2)
• EPA Substance Registry System: 1H-Benz[e]indene(232-54-2)

Safety Data

• Hazardous Substances Data: 232-54-2(Hazardous Substances Data)

Usage

Type of compound

Polycyclic aromatic hydrocarbon

Physical state

Colorless, flammable liquid

Uses

Production of dyes, pharmaceuticals, and fragrances; precursor in the synthesis of organic compounds; building block in the production of polymers and plastics

Health hazards

Potential carcinogen; associated with respiratory and skin irritation

Safety precautions

Proper handling, storage, and disposal procedures are essential

Upstream product

• 144152-93-2 2'-methylbiphenyl-2,3-dicarboxylic anhydride 
• 150723-29-8 5-(2-ethynylphenyl)-4-pentynal 
• 2320-32-3 6-methyl-6-phenylfulvene 
• 1694-19-5 E-1-(phenyl)-2-(4'-methoxyphenyl)ethene 
• 689-97-4 3-buten-1-yne 
• 75476-81-2 6-Iodoindene 

Relevant articles and documents

Gas phase formation of cyclopentanaphthalene (benzindene) isomers: Via reactions of 5- And 6-indenyl radicals with vinylacetylene

The tricyclic polycyclic aromatic hydrocarbons (PAHs) 3H-cyclopenta[a]naphthalene (C13H10), 1H-cyclopenta[b]naphthalene (C13H10) and 1H-cyclopenta[a]naphthalene (C13H10) along with their indene-based bicyclic isomers (E)-5-(but-1-en-3-yn-1-yl)-1H-indene, (E)-6-(but-1-en-3-yn-1-yl)-1H-indene, 5-(but-3-ene-1-yn-1-yl)-1H-in-dene, and 6-(but-3-ene-1-yn-1-yl)-1H-indene were formed via a directed synthesis in a high-temperature chemical micro reactor at the temperature of 1300 ± 10 K through the reactions of the 5- and 6-indenyl radicals (C9H7) with vinylacetylene (C4H4). The isomer distributions were probed utilizing tunable vacuum ultraviolet light by recording the photoionization efficiency curves at mass-to-charge of m/z = 166 (C13H10) and 167 (13CC12H10) of the products in a supersonic molecular beam. The underlying reaction mechanisms involve the initial formation of van-der-Waals complexes followed by addition of the 5- and 6-indenyl radicals to vinylacetylene via submerged barriers, followed by isomerization (hydrogen shifts, ring closures), and termination via atomic hydrogen elimination accompanied by aromatization. All the barriers involved in the formation of 3H-cyclopenta[a]naphthalene, 1H-cyclopenta[b]naphthalene and 1H-cyclopenta[a]naphthalene are submerged with respect to the reactants indicating that the mechanisms are in fact barrierless, potentially forming PAHs via the hydrogen abstraction-vinylacetylene addition (HAVA) pathway in the cold molecular clouds such as Taurus Molecular Cloud-1 (TMC-1) at temperatures as low as 10 K. This journal is

Al2O3-catalyzed transformation of 6-methyl-6-phenylpentafulvene into benzindoles

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Pyrolytic Generation of Aryne and Exocyclic Carbene Species: Trapping by an Adjacent o-Tolyl Group

Flash vacuum pyrolysis of 2'-methylbiphenyl-2,3-dicarboxylic anhydride (3-o-tolylphthalic anhydride) at 860 deg/0.07 mmm gave a 1:1 mixture of 1H- and 3H-benzindene (22percent), and fluorene (49percent).The pathways leading to these products are discussed.