CINNAMYLIDENEACETOPHENONE Property

Melting point:

100-102°C

Boiling point:

388.1±25.0 °C(Predicted)

Density 

1.0608 g/cm3

BRN 

1870052

CAS DataBase Reference

614-57-3(CAS DataBase Reference)

Safety

Risk Statements 

36/37/38

Safety Statements 

26-36/37/39

RTECS 

RZ2477000

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.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

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

P405Store locked up.

CINNAMYLIDENEACETOPHENONE Chemical Properties,Usage,Production

Description

Colorless. viscous liquid. B.P. 239℃. Sp,Gr. 0.895. The aldehyde is conventionally sold in reduced strength, either 50% or 70% aldehyde content. The diluent may be the corresponding acetal, or an odorless solvent, e. g. Diethyl - phthalate.

Uses

Cinnamylideneacetophenone is used in perfume compositions as a floralizing aldehydic topnote ingredient, primariIy in Muguet-Lily fragrances, but also in Rose, Peony (where the Geranyl-isomer is claimed to lx superior), and various modifications of modern-aldehydic fragrance types. Occasionally used in flavor compositions for floral or fruity types, and in Rose type flavors. The concentration is usually mere traces in the finished product.

Synthesis

Cinnamylideneacetophenone is prepared from Citronellol, reacted with Sodium methylate or Sodium iso-propylate. The acetal is then prepared by reaction with Chlorodimethylacetal. The resulting acetal is finally hydrolyzed with diluted oxalic acid to yield the aldehyde.