Tetraphenylcyclopentadienone Chemical Properties

Melting point:

217-220 °C (lit.)

Boiling point:

471.14°C (rough estimate)

Density 

1.0511 (rough estimate)

refractive index 

1.6020 (estimate)

storage temp. 

Sealed in dry,Room Temperature

form 

Fine Crystalline Powder

color 

Black

Water Solubility 

Soluble in Benzene. Insoluble in water.

BRN 

683115

Stability:

Stable. Combustible. Light sensitive.

CAS DataBase Reference

479-33-4(CAS DataBase Reference)

NIST Chemistry Reference

Tetraphenylcyclopentadienone(479-33-4)

EPA Substance Registry System

2,4-Cyclopentadien-1-one, 2,3,4,5-tetraphenyl- (479-33-4)

Safety Information

Safety Statements 

24/25-22

WGK Germany 

3

TSCA 

Yes

HS Code 

29143990

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

Tetraphenylcyclopentadienone Usage And Synthesis

Chemical Properties

Tetraphenylcyclopentadienone is an organic compound with the formula (C6H5)4C4CO. It is a dark purple to black crystalline solid that is soluble in organic solvents. It is an easily made building block for many organic and organometallic compounds.

Uses

Tetraphenylcyclopentadienone is a building block for several organic and organometallic compounds. It is also used as an efficient cyclone system or in re-circulation systems for the capturing of fine active pharmaceuticals and food ingredients.

Preparation

Tetraphenylcyclopentadienone can be synthesized by a double aldol condensation involving benzil and dibenzyl ketone in the presence of a basic catalyst.

Tetraphenylcyclopentadienone has been prepared by the action of phenylmagnesium bromide on benzaldiphenylmaleide, and by reduction, dehydration, and oxidation of the methylenedesoxybenzoin obtained by condensing formaldehyde with desoxybenzoin. The present procedure is essentially that of Dilthey.
Synthesis of tetraphenylcyclopentadienone

Definition

ChEBI: Tetraphenylcyclopentadienone is a stilbenoid.

Agricultural Uses

Tetraphenylcyclopentadienone is a dust-collecting device consisting of a cylindrical chamber, the lower portion of which is tapered to fit into a cone-shaped receptacle below it, is called a cyclone. Dust-laden air enters through a vertical slot-like duct on the upper wall of the chamber at the rate of at least 30meters a second. Since the particles enter at a tangent, they whirl in a circular or cyclonic path within the chamber. The centrifugal force exerted on the particles is proportional to their weight and square of their velocity. The particles slide along the walls of the chamber and gradually circulate down into the conical receptor, while the clean air escapes through a central pipe at the bottom. The dust accumulates in the cone and is discharged continuously or at intervals. The larger the particles, the more efficient the process of their removal. In simple cyclones, particles below 50microns in diameter are not retained, but improved models retain particles as small as 20microns.
Cyclones are used in handling and granulating fertilizers to avoid air pollution and are a safety requirement in the production plants.

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