385-14-8

Usage

Uses

Due to the harmful effects of BENZO[B]NAPHTHO[1,8,7-GHI]CHRYSENE on human health and the environment, its uses are not encouraged. However, it is important to be aware of its presence in certain sources such as tobacco smoke, automobile exhaust, and some industrial processes. Efforts to reduce exposure to BENZO[B]NAPHTHO[1,8,7-GHI]CHRYSENE and other PAHs are ongoing in various industries to minimize their impact on health and the environment.

InChI:InChI=1/C28H16/c1-3-11-21-19(9-1)20-10-2-4-12-22(20)28-24-14-6-8-18-16-15-17-7-5-13-23(27(21)28)25(17)26(18)24/h1-16H

Upstream product

• 486-25-9 9-fluorenone 
• 5737-13-3 cyclopenta[def]phenanthren-4-one 
• 781-17-9 4,5,9,10-tetrahydropyrene 
• 115464-09-0 C₃₀H₂₅S⁽¹⁺⁾*BF₄^(1-) 
• 70939-44-5 4-<9H-fluorenylidene-(9)>-4H-cyclopentaphenanthrene 

Relevant academic research and scientific papers

High temperatures synthesis of Bowl-shaped subunits of fullerenes - IV. From 4-[9H-fluorenylidene-(9)]-4H-cyclopenta[def]phenanthrene to fluoreno[1,9,8-abcd]corannulene and difluoreno[1,9,8,7-cdefg; 2',1',9',8'-klmno]anthracene

Fluoreno[1,9,8-abcd]corannulene (4) and difluoreno[1,9,8,7-cdefg;2',1',9',8'-klmno]anthracene (8) have been synthesized by multistage thermal and catalytic dehydrocyclization reactions starting from 4-[9H-fluorenylidene-(9)]-4H-cyclopenta[def]phenanthrene and benzo[p]naphtho[1,8,7-ghi]chrysene, respectively.

Structural Studies on Phenanthropyrene and its 9,10-Dihydro-Derivative: Dependence of Chemical Shift on Degree of Planarity of and Buttressing Effect in the Polycyclic Aromatic Compounds

The first example of a transannular reaction of a syn-metacyclophane derivative via photochemical iodination has been employed in the preparation of 9,10-dihydrophenanthropyrene (2).The structural studies of 2 and the phenanthropyrene 1 were carried out by 1D and 2D NMR spectroscopic analyses.Qualitative correlation between tilting of the fused moieties and the change in deshielding effect was observed by probing the chemical shifts of H3 and H1' (H6 and H8').Buttressing effects resulting from the steric interaction of H3 and H1' (H6 and H8'), althoughdiffering in magnitudes for the two groups of protons (H3->H2->H1->H10 and H1'->H2'->H3'->H4'), seem to transmit evenly among those on the same moiety according to a simple additivity rule.

Use of Bridge Annelation To Retain the Syn Stereochemstry of Metacyclophane Derivatives: A Route to an Elusive syn-Metacyclophanediene

Free-radical bromination of 9,10-di-m-tolylphenanthrene (6) afforded the anti and syn conformers of the bis(bromomethyl) derivative 7 with the barrier of interconversion estimated at 90 kJ mol-1.Sodium sulfide coupling of 7 suprisingly yielded