organic chemicals cinnamic ester
Synonyms 3-Phenyl-2-propene-1-ol; 3-Phenyl-2-propen-1-ol; Cinnamyl alcohol; 3-phenylprop-2-en-1-ol; (2Z)-3-phenylprop-2-en-1-ol; (2E)-3-phenylprop-2-en-1-ol

Molecular Formula C9H10O

Molecular Weight 134.1751

CAS Registry Number 104-54-1

EINECS 203-212-3

Density 1.048g/cm3

Melting point 31-35℃

Boiling point 250°C at 760 mmHg

Refractive index 1.598

Flash point 124.8°C

Water solubility 1.8 g/L (20℃)

Assay: 98% min

Packing: 200kg net/barrel

Brand: Nanjian

Characteristic: White to light yellow crystal or colorless to pale yellow liquid, With a similar cream fragrant aroma of hyacinth, sweet. Soluble in ethanol, propylene glycol, and most of the non-volatile oil, insoluble in water and petroleum ether, insoluble in glycerol and non-volatile oil.

Usage:

Cinnamyl alcohol is mainly used for the preparation of apricot, peach, raspberry, Li and other aromatic fragrance, cosmetics, fragrance and soap flavor, with mild, lasting and comfortable aroma, flavor elegant, also used as a fixative agent. Often shared with phenylacetaldehyde, is modulated Ocean Narcissus fragrance, rose fragrance and other essential spices. Alcohol is our "standard of food additive use" provision allows the use of food spices, mainly for the preparation of strawberry, lemon, apricot, peach and other fruit-based food essence and brandy flavor. Use in chewing gum for the 720mg/kg; baking food 33mg/kg; candy 17mg/kg; soft drinks 8.8mg/kg; cold in the 8.7mg/kg; alcohol 5.0mg/kg.

As intermediates in organic synthesis, used to prepare cinnamon chloride, is used to prepare long-acting antagonist of the brain function of vascular contraction of the excellent benefits hydrochloride raw material, while cinnamon chloride can also be used for synthesis of microbial drug resistance derived for naphthalene Finland and anticancer drugs toremifene. flunarizine dihydrochloride is a calcium antagonist, can also be used to synthesize cinnamic chloride. cinnamyl alcohol is used to prepare spices Gui Gui acid ester materials.

Preparation:

Cinnamaldehyde reduction

1 share benzyl alcohol were added to 0.01 share aluminum powder, heated to 60 ℃ reaction to release hydrogen, the temperature rises to 180 ℃, to stop the release of hydrogen so far. Benzyl alcohol solution of aluminum cooled and filtered, then added to a mixture of benzyl alcohol and cinnamaldehyde (quality 1:1). Conditions in the 0.0027MPa heated to boiling, and the reflux ratio at 80 ℃ under 3 to 4 the reaction of steam out of benzaldehyde, benzyl alcohol while additional. Until the theoretical amount of steam out of benzaldehyde of 95% after the stop feeding, and steamed out of the remaining benzyl alcohol, cinnamic alcohol and then distilled out of crude. And then by vacuum distillation, collecting 117 ℃ (7kPa) fractions, namely cinnamyl alcohol.

Su balsam saponification

Acid Gui Gui Gui ester alcohol to form naturally in Peru balsam, benzoin, balsam of fat and the Soviet Union together. Su balm to 10% sodium hydroxide solution heated saponification 5h, then ether extracted hydrolyzate Gui alcohol, and finally purified by vacuum distillation of alcohol derived from cinnamon.