Phenanthrenequinone Property

Melting point:

209-212 °C(lit.)

Boiling point:

360 °C

Density 

1.405

refractive index 

1.5681 (estimate)

Flash point:

245 °C

storage temp. 

Store below +30°C.

solubility 

7.5mg/l

form 

Powder

color 

Orange-brownish

Water Solubility 

Insoluble in water.

Merck 

14,7213

BRN 

608838

Stability:

Stable. Incompatible with strong oxidizing agents.

CAS DataBase Reference

84-11-7(CAS DataBase Reference)

NIST Chemistry Reference

9,10-Phenanthroquinone(84-11-7)

EPA Substance Registry System

9,10-Phenanthrenedione (84-11-7)

Safety

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36-24/25-22

RIDADR 

UN3077

WGK Germany 

3

RTECS 

SF7875000

Autoignition Temperature

630 °C DIN 51794

TSCA 

Yes

HazardClass 

9

PackingGroup 

III

HS Code 

29146990

Hazardous Substances Data

84-11-7(Hazardous Substances Data)

Toxicity

LD50 orally in Rabbit: > 16000 mg/kg

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H319Causes serious eye irritation

H400Very toxic to aquatic life

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P337+P313IF eye irritation persists: Get medical advice/attention.

P391Collect spillage. Hazardous to the aquatic environment

Phenanthrenequinone Chemical Properties,Usage,Production

Description

9,10-phenanthrenequinone (9,10-PQ) is a quinone molecule found in air pollution abundantly in the diesel exhaust particles (DEP). This compound has studied extensively and has been shown to develop cytotoxic effects both in vitro and in vivo. 9, 10-PQ has been proposed to play a critical role in the development of cytotoxicity via generation of reactive oxygen species (ROS) through redox cycling. This compound also reduces expression of glutathione (GSH), which is critical in Phase II detoxification reactions.

Uses

9,10-Phenanthrenequinon may be used for high quality passivation on silicon (100) surfaces. Quinones may serve as substrates for a variety of flavoenzymes.
The quinones of polycyclic aromatic hydrocarbons are present in abundance in all burnt organic material. On being used to passivate silicon surfaces, it reacts with the dangling bonds on the surface via a heteroatomic Diels-Alder reaction. On account of the Π-electron conjugation, the semi conducting nature of the silicon is unaffected.

Preparation

Phenanthrenequinone is obtained by the oxidation of the hydrocarbon phenanthrene C14H10. Upon reduction with sulphur dioxide, it yields phenanthrenehydroquinone which absorbs oxygen from the air forming a black quinhydrone. Upon further oxidation the phenanthrenequinone is again formed.
9,10-Phenanthrenequinone is prepared by oxidation of phenanthrene with dihydroxy phenylselenonium benzenesulfonate in boiling dioxane-water. 9-methoxyphenanthrene is obtained when the reaction is carried out in methanol.
https://www.tandfonline.com/doi/abs/10.1080/00397919708004809

Reactions

9,10-Phenanthrenequinone (PQ) reacts with ketones under FeCl3 catalysis to furnish a variety of structurally diverse furan annulated products. While the reaction of PQ with acetone and cyclopentanone furnishes furan annulated ketals, its reaction with ethyl alkyl ketones provides 3-furaldehyde annulated products. In contrast to the reaction of PQ with cyclopentanone, its reaction with cyclohexanone furnishes a tetrahydrobenzofuran annulated secondary alcohol. The reactions of PQ with cycloheptanone and cyclooctanone take a different course to provide 7,8-dihydro-6H-cyclohepta[b]furan and 6,7,8,9-tetrahydrocycloocta[b]furan annulated products, respectively. Mechanistically, the above reactions go through aldol condensation, dehydration and cyclization to form furan-phenanthrene annulated products where in each step FeCl3 catalysis is involved.

https://pubs.rsc.org/en/content/articlelanding/2012/ra/c2ra20499a

Chemical Properties

burnt-orange powder

Uses

9,10-Phenanthrenequinone is used in the formation of spirophosphoranes containing acyclic 5-methyl-2-phenyl-2H-1,2,3-diazaphosphol-4-yl substituent.

Uses

9,10-Phenanthrenequinon may be used for high quality passivation on silicon (100) surfaces. Quinones may serve as substrates for a variety of flavoenzymes.

Definition

ChEBI: 9,10-phenanthroquinone is a member of phenanthrenes.

Synthesis Reference(s)

The Journal of Organic Chemistry, 52, p. 3472, 1987 DOI: 10.1021/jo00391a065

General Description

The quinones of polycyclic aromatic hydrocarbons are present in abundance in all burnt organic material. On being used to passivate silicon surfaces, it reacts with the dangling bonds on the surface via a heteroatomic Diels-Alder reaction. On account of the Π-electron conjugation, the semi conducting nature of the silicon is unaffected.

Safety Profile

Poison by acute intraperitoneal route. Questionable carcinogen with experimental tumorigenic data by skin contact. Mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes.

Purification Methods

Crystallise the quinone from dioxane or 95% EtOH and dry it under vacuum. [Beilstein 7 IV 2565.]