62690-96-4

Usage

Chemical class

Polycyclic aromatic hydrocarbons (PAHs)

Saturated derivative

Contains only single carbon-carbon bonds

Common sources

Fossil fuels, coal tar, and cigarette smoke

Formation

Occurs during incomplete combustion of organic matter (e.g., wood or coal)

Environmental impact

Potential environmental pollutant

Health risks

Carcinogenic properties, respiratory problems, increased risk of cancer

Mitigation measures

Efforts should be made to limit human exposure and reduce its presence in the environment

Upstream product

• 529-34-0 3,4-dihydronaphthalene-1(2H)-one 
• 121865-82-5 2-(4-chlorobutyl)-2-(methoxycarbonyl)-1-tetralone 
• 121865-83-6 2-(4-bromobutyl)-1-tetralone 
• 6742-26-3 2-ethoxycarbonyl-1-tetralone 
• 85-01-8 phenanthrene 

Downstream Products

• 121865-86-9 (4β,4aβ,,10aα)-4,4a-epoxy-trans-1,2,3,4,4a,9,10,10a-octahydrophenanthrene 
• 121865-86-9 (4α,4aα,,10aα)-4,4a-epoxy-1,2,3,4,4a,9,10,10a-octahydrophenanthrene 

Relevant academic research and scientific papers

Partial Hydrogenation of Polycyclic Aromatic Hydrocarbons by Electroreduction in Protic Solvents

Polycyclic aromatic hydrocarbons (PAH) such as anthracene (1), phenanthrene (5), acenaphthylene (15), pyrene (17), chrysene (22), and fluoranthene (28) are selectively hydrogenated upon electroreduction at a lead cathode in ethanolic solution. The degree of hydrogenation and the structure of the products depend on the reaction conditions, in particular on the applied reduction potential.

Synthesis and Reactivity of Benzylic Epoxides Derived from 1,2,3,9,10,10a-Hexahydrophenanthrene. Search for a Unified Mechanism for the Ring Opening of 2-Aryloxiranes

The diastereoisomeric benzylic epoxides 4a and 4b were synthesized, and their ring-opening reactions under acidic conditions were compared with those of the known epoxides 2 and 3.The chemical behavior of 4 more nearly resembles that of 3, thus suggesting that the differences in chemical behavior between 2 and 3 could be ascribed to the different conformational rigidity of the aryl in these systems.The ring opening of 4 forms significant amounts of unsaturated alcohol and ketone in addition to the diastereoisomeric diols.The results obtained in the present study are difficult to explain by means of either of the two mechanistic schemes suggested for 2-aryloxiranes.