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Usage

Uses

Used in Environmental Monitoring:
8H-cyclopenta[def]chrysen-8-one is used as a biomarker for monitoring air pollution levels in various industries and urban environments. Its presence in environmental gas samples helps in assessing the extent of pollution and the effectiveness of pollution control measures.
Used in Research and Analysis:
8H-cyclopenta[def]chrysen-8-one serves as a valuable compound for research and analysis in the field of environmental chemistry. It aids in understanding the formation, behavior, and impact of polycyclic aromatic hydrocarbons (PAHs) in the atmosphere, as well as their potential health risks and environmental consequences.
Used in Air Quality Assessment:
8H-cyclopenta[def]chrysen-8-one is used as an indicator in air quality assessment to determine the levels of pollutants in the air. Its detection in environmental gas samples can help identify areas with high pollution levels and guide the development of strategies to improve air quality.
Used in Industrial Emission Control:
8H-cyclopenta[def]chrysen-8-one is used in the development and implementation of industrial emission control technologies. By monitoring the levels of 8H-cyclopenta[def]chrysen-8-one in emissions from various industries, it is possible to evaluate the effectiveness of pollution control measures and make necessary improvements to reduce harmful emissions.

Upstream product

• 963-63-3 benzylideneacenaphthenone 
• 100-52-7 benzaldehyde 
• 82-86-0 acenaphthene quinone 
• 187754-72-9 2-(2-Bromo-benzyl)-2H-acenaphthylen-1-one 
• 187754-73-0 1-(2-Bromo-benzyl)-2-methoxy-acenaphthylene 
• 191021-93-9 Chrysene-5-carboxylic acid ethyl ester 
• 70312-09-3 benzylidine acenaphthenone 
• 202-98-2 4H-cyclopentachrysene 
• 68723-48-8 Chrysene-11-carboxylic acid 

Downstream Products

• 202-98-2 4H-cyclopentachrysene 

Relevant academic research and scientific papers

Study of photochemistry without light of substituted benzylidine acenaphthenones

In order to draw a parallel between light induced reactions as well as photochemistry without light (chemiluminescence), the substituted benzylidineacenaphthenones were subjected to dioxetanedione reactions, which are formed in situ by the reaction of 2,4-dimitrophenyloxalate with hydrogen peroxide to provide chrysene derivatives as well as naphthalene 1,8-dicarboxylic acid anhydride and benzoic acid whose structures were determined by IR and 1H NMR spectra.

Synthesis of Spiro Polycyclic Aromatic Hydrocarbons by Intramolecular Palladium-Catalyzed Arylation

The palladium-catalyzed intramolecular arylation reaction has been applied to the synthesis of the spiro polycyclic aromatic hydrocarbons and planar polycyclic aromatic hydrocarbons by formation of a six-membered ring. The reaction proceeds more readily with aryl bromides substituted with electron-withdrawing groups by using palladium acetate in N,N-dimethylformamide as the solvent. For the less reactive p-methoxyaryl derivatives the use of LiI as an additive was shown to give the best results. The results obtained in the cyclization of nitro derivatives 21 and 23 suggest that the second step of the cyclization reaction is not an electrophilic substitution reaction.

Synthesis of Ketone and Alcohol Derivatives of Methylene-Bridged Polyarenes, Potentially New Classes of Active Metabolites of Carcinogenic Hydrocarbons

Methods for the syntheses of bridge ketone and alcohol derivatives of methylene-bridged polyarenes from the parent hydrocarbons are described.The polyarenes investigated include 4H-cyclopentaphenanthrene (1a), fluorene (2a), 7H-benzofluorene (3a), 4H-cyclopentachrysene (4a), 11H-benzaceanthrylene (5a), 10H-indenopyrene (6a), 11H-dibenzoaceanthrylene (7a), 4H-fluorenoanthracene (8a), and 7H-dibenzofluorene (9a).The bridge ketone derivatives are most efficiently synthesized via treatment of the parent hydrocarbons with n-butyllithium and reaction of the resulting anionic intermediate s with molecular oxygen.The direct formation of ketones rather than the expected hydroperoxides from reaction of the bridge anions with O2 presumably involves intra- or intermolecular abstraction of a proton from the benzylic site of the intermediate by the peroxy anion leading to loss of hydroxide ion with formation of a carbonyl group.Yields are generally high except in the cases of 1a and 4a; the former affords as the principal product a dimeric alcohol arising from reaction of the anion of 1a with the corresponding ketone 1b.The related bridge alcohols are readily obtained in yields of 75-95percent by reduction of the crude products from the preceding oxidations with NaBH4.