97-96-1 Usage
Description
2-Ethylbutyraldehyde is a colorless liquid with a pungent odor. It is less dense than water, insoluble in water, and has a flash point of 70°F. This organic compound is known for its green, fruity, and cocoa-like taste with sweet and fresh nuances, which can be detected at a threshold value of 20 ppm. It is found naturally in various food items such as melon, French fried potatoes, wheaten bread, scallops, citrus fruits, white bread, and maize.
Uses
Used in Chemical Synthesis:
2-Ethylbutyraldehyde is used as an intermediate in organic synthesis for the production of various chemicals and pharmaceuticals. Its reactivity and unique structure make it a valuable component in the synthesis of complex organic molecules.
Used in Pharmaceutical Industry:
In the pharmaceutical industry, 2-Ethylbutyraldehyde is used as a building block for the synthesis of drugs. Its ability to form aldoximes using aqueous hydroxylamine makes it a key precursor in the preparation of certain pharmaceutical compounds.
Used in Rubber Industry:
2-Ethylbutyraldehyde is used as a rubber accelerator, enhancing the rate of vulcanization and improving the overall properties of rubber products. This application is crucial for the manufacturing of tires, automotive parts, and other rubber-based items.
Used in Synthetic Resins:
In the production of synthetic resins, 2-Ethylbutyraldehyde serves as a vital component. These resins are used in a wide range of applications, including coatings, adhesives, and composite materials.
Used in Flavor and Fragrance Industry:
Due to its distinct green, fruity, cocoa, sweet, and fresh taste characteristics, 2-Ethylbutyraldehyde is used in the flavor and fragrance industry to create and enhance various scents and flavors in food, beverages, and cosmetics.
Air & Water Reactions
Highly flammable. With air slowly form peroxides. Insoluble in water.
Reactivity Profile
2-ETHYLBUTYRALDEHYDE is an aldehyde. Aldehydes are frequently involved in self-condensation or polymerization reactions. These reactions are exothermic; they are often catalyzed by acid. Aldehydes are readily oxidized to give carboxylic acids. Flammable and/or toxic gases are generated by the combination of aldehydes with azo, diazo compounds, dithiocarbamates, nitrides, and strong reducing agents. Aldehydes can react with air to give first peroxo acids, and ultimately carboxylic acids. These autoxidation reactions are activated by light, catalyzed by salts of transition metals, and are autocatalytic (catalyzed by the products of the reaction). The addition of stabilizers (antioxidants) to shipments of aldehydes retards autoxidation.
Hazard
Irritant to eyes and skin. Flammable, dangerous fire risk.
Health Hazard
May cause toxic effects if inhaled or absorbed through skin. Inhalation or contact with material may irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.
Fire Hazard
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
Safety Profile
Moderately toxic by
ingestion. Mildly toxic by inhalation. A skin
irritant. Flammable liquid. Can react
vigorously with oxidizing materials. To fight
fire, use alcohol foam, Co2, dry chemical.
When heated to decomposition it emits
acrid smoke and fumes. See also
ALDEHYDES.
Synthesis
From diethyl carbinol and anhydrous oxalic acid or with sulfuric acid; a more recent synthetic route (Xeisel–Neuwirth
method) calls for the reduction of α-vinylcrotonaldehyde using iron dust and acetic acid
Potential Exposure
Used in organic synthesis of pharmaceuticals and rubber chemicals.
Shipping
UN1178 2-Ethyl butyraldehyde, Hazard Class: 3;
Labels: 3-Flammable liquid
Incompatibilities
Vapors may form explosive mixture with
air. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep
away from alkaline materials, strong bases, strong acids,
oxoacids, epoxides, and reducing agents. Aldehydes are frequently involved in self-condensation or polymerization
reactions. These reactions are exothermic; they are often
catalyzed by acid. Aldehydes are readily oxidized to give
carboxylic acids. Flammable and/or toxic gases are generated by the combination of aldehydes with azo, diazo compounds, dithiocarbamates, nitrides, and strong reducing
agents. Aldehydes can react with air to give first peroxo
acids, and ultimately carboxylic acids. These autoxidation
reactions are activated by light, catalyzed by salts of transition metals, and are autocatalytic (catalyzed by the products
of the reaction). The addition of stabilizers (antioxidants) to
shipments of aldehydes retards autoxidation
Check Digit Verification of cas no
The CAS Registry Mumber 97-96-1 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 9 and 7 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 97-96:
(4*9)+(3*7)+(2*9)+(1*6)=81
81 % 10 = 1
So 97-96-1 is a valid CAS Registry Number.
InChI:InChI=1/C6H12O/c1-3-6(4-2)5-7/h5-6H,3-4H2,1-2H3
97-96-1Relevant articles and documents
HIGHLY EFFICIENT METHOD FOR PRODUCING SATURATED HOMOETHER FROM UNSATURATED CARBONYL COMPOUND
-
Paragraph 0049; 0051-0052, (2020/07/16)
PROBLEM TO BE SOLVED: To provide a method for efficiently producing a saturated homoether from an unsaturated carbonyl compound. SOLUTION: The method for producing an unsaturated homoether uses an unsaturated carbonyl compound and hydrogen as a raw material, uses a catalyst comprising a metal supported on an acidic catalyst carrier and performs at least once a pressure reduction operation so that a differential pressure from a reaction pressure is 0.01 MPa or more. In the method, the metal of the catalyst is, for example, palladium and the carrier of the catalyst is alumina, silica, silica-alumina or the like. The unsaturated carbonyl compound serving as a raw material is 2-butenal, 2-ethyl-2-hexenal, 2-ethyl-2-butenal, 2-hexenal or the like and the produced saturated homoether is dibutyl ether, bis(2-ethylhexyl)ether, bis(2-ethylbutyl)ether, dihexyl ether or the like. SELECTED DRAWING: None COPYRIGHT: (C)2020,JPOandINPIT
Utilization of hexabromoacetone for protection of alcohols and aldehydes and deprotection of acetals, ketals, and oximes under UV irradiation
Chaiseeda, Kittichai,Chantharadet, Ladawan,Chavasiri, Warinthorn
, p. 1305 - 1323 (2017/10/30)
Hexabromoacetone (HBA) was efficiently used for the protection of alcohols and aldehydes and deprotection of benzaldehyde dimethyl acetal, solketal, and other acetals and ketals. In only 10?min, the protection of glycerol yielded 90% of solketal and protection of benzaldehyde gave 95% of benzaldehyde dimethyl acetal. The deprotection of benzaldehyde dimethyl acetal under UV irradiation gave over 90% yield of benzaldehyde within 15?s using only 2.5?mol% of HBA. HBA was also successfully used for deoximation. Solvent was found to play an important role in the efficiency of HBA for these reactions.
Preparation method of key intermediate 2-ethyl butyraldehyde of 2-ethyl butyric acid
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Paragraph 0011-0012, (2017/07/19)
The invention provides a preparation method of a key intermediate, 2-ethyl butyraldehyde, of 2-ethyl butyric acid, wherein the preparation method includes the steps of: adding an ethyl magnesium halide Grignard reagent to a protected alpha-halogenated aldehyde (I) solution, and performing a stirring reaction for 1-10 h at a certain temperature; performing post-treatment and de-protecting the product to obtain the 2-ethyl butyraldehyde. A route in the process in represented as follows. The method has short route and high usage ratio, is low in cost and easy to industrialize, and avoids defects in conventional methods.
