.

High quality Alpha-Methylcinnamaldehyde; Methyl cinnamic aldehyde from Landmarkind

High quality Alpha-Methylcinnamaldehyde; Methyl cinnamic aldehydefrom Landmarkind

Name: Alpha-Methylcinnamaldehyde; Methyl cinnamic aldehyde

Chemical formula: C10H10O

Molecular weight: 146.19

Molecularstructure:

CAS NO: 101-39-3

EINECS NO: 202-938-8

Boiling point: 148- 149ºC/3.05KPa.

Density: 1.047g/ml at 25ºC

Refractive index: 1.605-1.607

Flash point: 79ºC

Purity: 98%

Appearance: Yellow liquid, smell sweet

Stability:Stable, Combustible,Incompatible with strong oxidizing agents, strong bases.

Solubility: Soluble in ethanol, propylene glycol and non-volatile oil, insoluble in glycerin and water. Avoid touchwith skin and eyes when using.

Storage: Keep the container closed and store in a dry, well-ventilated place.

Reactivity Profile: Alpha-Methylcinnamaldehyde is incompatible with strong oxidizing agents and strong bases.

Fire Hazard: Alpha-Methylcinnamaldehyde is combustible.

Use:

Alpha-methyl cinnamaldehyde is a versatile fragrance commonly used in the fragrance of cosmetics, soaps, foods, etc. The Alpha-methyl streptopropane obtained by the further reaction thereof is used as a syntheticessenceand also has a very good aroma. At the same time, α-methylcinnamaldehyde is also an important intermediate for the synthesis of the therapeutic drug epalrestat. As the number of diabetic patients increases, the demand for the drug increases, and the demand for intermediates also increases, and there is an urgent need to improve the process to improve quality.

Production

The chemical name of alpha-methylcinnamic acid is alpha-methylphenylacrolein, which is an important fine chemical intermediate and is widely used in the production of pharmaceuticals, spices and other products. At present, there are several methods for preparing alpha-methylcinnamaldehyde. 1. Benzoaldehyde and n-propanal are used as raw materials, KF/A1203 is used as a catalyst, and polyethylene glycol is a phase transfer solution to synthesize ct-methyl cinnamaldehyde. The yield is 78.9. %. The yield of alpha-methylcinnamaldehyde synthesized by the method is high, and the process is relatively simple, but the preparation of the catalyst used is complicated, expensive, and has a little pollution to the environment, and the recycling process is cumbersome. 2, using benzaldehyde and n-propionaldehyde as raw materials, ethanol as solvent, PEG400, PEG600 for phase transfer synthesis of a-methyl cinnamaldehyde, the yield is 54.2%, the alpha-methyl cinnamaldehyde synthesized by this method has more negative reaction, product separation It is difficult to purify; 3, using benzaldehyde and n-propionaldehyde as raw materials, ethanol as solvent, TBAB as phase transfer catalyst, synthesizing a-methyl cinnamaldehyde under alkaline medium, the yield is 59.7%, the a-form synthesized by this method The synthesis process of cinnamaldehyde is simple, but the conversion rate of the raw material reaction is low, and the negative reaction is high, resulting in low product yield.

Summary of the invention

The object of the present invention is to provide a method for preparing alpha-methylcinnamaldehyde, which comprises synthesizing a-formaldehyde with benzaldehyde and n-propanal in an alkaline medium and using an aqueous solution of methanol as a solvent. The cinnamaldehyde has simple method, convenient operation, low raw material cost, high yield and no pollution to the environment, and is very suitable for industrial production.

Itemsofanalysis

Specification

Results

Colorandappearance

slightlyyellowliquid

Conforms

Content

≥98.0%

Melting

Arseniccontent(As,mg/kg)

≤0.5

<0.5

Heavymetalassay(Pb,mg/kg)

≤1.0

<1.0

Relativedensity

Refractive



Send product request

To: 731577
Your E-mail:
Message text:


Send to other suppliers

Other supplier products

Wuhan LANDMARK Industrial Co., Ltd.
Wuhan LANDMARK Industrial Co., Ltd. The company specializes in the research, development, production and sales of cinnamon series flavors and fragrances, fine chemicals, and food addi...
High quality 3-Bromocinnamic acid from Landmarkind
High quality 3-Bromocinnamic acid from Landmarkind High quality 3-Bromocinnamic acidfrom Landmarkind Name:3-Bromocinnamic acid Synonyms:RARECHEM BK HC T307;TRANS-3-BROMOCINNAMIC ACID;M-BROMOCINNAM...
High quality O-trifluoromethyl cinnamic acid from Landmarkind
High quality O-trifluoromethyl cinnamic acid from Landmarkind High quality O-trifluoromethylcinnamic acidfrom Landmarkind SynonymsName: (Trifluoromethyl)CinamicAcid; 2-(Trifluoromethyl)benzenepropenoicacid;...
High quality Ethyl cinnamate from Landmarkind
High quality Ethyl cinnamate from Landmarkind Ethyl cinnamate(肉桂酸乙酯) High quality Ethyl cinnamatefrom Landmarkind Product name: Ethyl cinnamate Synonyms:2-propenoic acid; 3-phenyl-2-prop...
High quality Alpha-Methylcinnamaldehyde; Methyl cinnamic aldehyde from Landmarkind
High quality Alpha-Methylcinnamaldehyde; Methyl cinnamic aldehyde from Landmarkind Alpha-methylcinnamaldehydealso named as alpha-methyl cinnamaldehyde, is a yellow liquid with a cinnamon aroma, soluble in ethanol, propylene glycol...
All supplier products

Same products

Customized packaging
Customized packaging Seller: Hongxiang Network Technology Co., Ltd We are a professional manufacturer and have been doing business in this field for more than 10 ye...
ADC Monomer
ADC Monomer Seller: Nanjing Chemical Material Corp. Features of ADC Monomer Product Name: Allyl Diglycol Carbonate(ADC Monomer) Chemical Formula: C12...
Acetyl Chloride
Acetyl Chloride Seller: Nanjing Chemical Material Corp. Features of Acetyl Chloride Product Name: Acetyl chloride Chemical Formula: C2H3ClO Acetyl chlori...
3-Methacryloxypropyltrimethoxysilane
3-Methacryloxypropyltrimethoxysilane Seller: Nanjing Chemical Material Corp. Features of 3-Methacryloxypropyltrimethoxysilane Product Name: 3-Methacryloxypropyltrimethoxysila...
3-Aminopropyltriethoxysilane
3-Aminopropyltriethoxysilane Seller: Nanjing Chemical Material Corp. Features of 3-Aminopropyltriethoxysilane Product Name:(3-triethoxysilyl)propylamine Chemical Form...