4-CYANOBENZOPHENONE Property

Melting point:

110-114 °C(lit.)

Boiling point:

346.25°C (rough estimate)

Density 

1.1259 (rough estimate)

refractive index 

1.4700 (estimate)

storage temp. 

Sealed in dry,Room Temperature

form 

solid

color 

White

Water Solubility 

Insoluble in water.

BRN 

641181

CAS DataBase Reference

1503-49-7(CAS DataBase Reference)

Safety

Hazard Codes 

Xn

Risk Statements 

20/21/22-36/37/38

Safety Statements 

26-36

RIDADR 

3439

WGK Germany 

3

HazardClass 

6.1

PackingGroup 

III

HS Code 

29269095

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

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

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

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

4-CYANOBENZOPHENONE Chemical Properties,Usage,Production

Chemical Properties

slightly yellow crystalline powder

Uses

Substituted benzophenones?are used to determine the quantum yields for norbornadiene(N)?quadricyclane(Q) and Q?N isomerization. It is employed as a triplet sensitizers.

Synthesis Reference(s)

The Journal of Organic Chemistry, 41, p. 1187, 1976 DOI: 10.1021/jo00869a023
Tetrahedron Letters, 26, p. 4819, 1985 DOI: 10.1016/S0040-4039(00)94960-8

General Description

4-Cyanobenzophenone is a benzophenone derivative that can be prepared by treating 4-cyanobenzoyl chloride with benzene. Its reduction under electrochemical condition led to the formation of 4-t-butyl-benzophenone and 1-(4-cyanophenyl)-2,2-dimthyl-1-phenylpropan-1-ol. Its efficiency as triplet sensitizer for norbornadiene(N)→quadriciane(Q) and Q→N photoisomerization has been assessed.