19780-25-7

Usage

Uses

Used in Flavor and Fragrance Industry:
2-Ethylcrotonaldehyde is used as a flavoring agent for enhancing the taste and aroma of food and beverages, as well as a fragrance ingredient in perfumes and other personal care products, adding unique scents and improving the sensory experience of consumers.
Used in Pharmaceutical Production:
In the pharmaceutical industry, 2-Ethylcrotonaldehyde serves as a key intermediate in the synthesis of various drugs, contributing to the development of new medications and the improvement of existing ones.
Used in Chemical Production:
Beyond its applications in food, fragrances, and pharmaceuticals, 2-Ethylcrotonaldehyde is also utilized in the production of other chemicals, highlighting its versatility and importance in the chemical industry.
Safety Considerations:
Given its potentially hazardous nature, 2-Ethylcrotonaldehyde can cause irritation to the eyes, skin, and respiratory system if ingested, inhaled, or absorbed through the skin. Therefore, it is crucial to handle this chemical with caution and follow proper safety procedures to minimize health risks and ensure a safe working environment.

InChI:InChI=1/C6H10O/c1-3-6(4-2)5-7/h3,5H,4H2,1-2H3

Upstream product

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• 100392-96-9 3-ethoxy-2-ethyl-butyraldehyde diethylacetal 
• 75-07-0 acetaldehyde 
• 123-72-8 butyraldehyde 
• 929-05-5 1-ethoxybut-1-ene 
• 119353-35-4 trans-N-(2-Ethyl-2-butenylidene)cyclohexylamine 
• 760-21-4 2-ethyl-1-butene 
• 73405-04-6 N-(2-chloro-2-ethyl-1-butylidene)isopropylamine 
• 54305-25-8 2-ethyl-3-hydroxy-butyraldehyde 
• 7553-56-2 iodine 
• 7647-01-0 hydrogenchloride 
• 119353-33-2 (E)-N-(2-Ethyl-2-butenylidene)isopropylamine 
• 6124-71-6 3-chloro-2,2-diethyl-oxirane 
• 19700-96-0 hexa-1,5-diene-3,4-diol 

Downstream Products

• 101430-93-7 2-ethyl-6-methyl-7ξ-phenyl-hepta-2ξ,4ξ,6-trienal 
• 97-96-1 2-Ethylbutyraldehyde 
• 35081-14-2 diethyl 4-ethylphthalate 

Relevant academic research and scientific papers

METHOD FOR PRODUCING CROSS ALDOL CONDENSATE USING AMINE-CARRYING CATALYST

PROBLEM TO BE SOLVED: To provide a method for producing a cross aldol condensate with improved selectivity of a cross aldol condensate, the target material. SOLUTION: A method for producing a cross aldol condensate has a step of performing a cross aldol condensation reaction of different two substrates in the presence of an amine-carrying catalyst with an amine compound immobilized to a carrier, the substrate containing two compounds selected from aldehyde and/or ketone having α hydrogen. SELECTED DRAWING: None COPYRIGHT: (C)2021,JPO&INPIT

Method for Carrying Out Multiphase Aldol Condensation Reactions to Give Mixed a, beta-Unsaturated Aldehydes

The invention relates to a continuous method for carrying out a multiphase aldol condensation reaction to obtain mixed α, β-unsaturated aldehydes by reacting a mixture of two aliphatic aldehydes having different numbers of carbon atoms, i.e. 2 to 5, in the molecule in a vertical tubular reactor in a concurrent flow in the presence of an aqueous solution of a basically reacting compound. In said method, the aldehyde mixture is dispersed in the aqueous phase in the form of drops, and the aqueous solution of the basically reacting compound flows through the tubular reactor as a continuous phase in laminar conditions.

OXIDATION OF ALDEHYDES TO α,β-UNSATURATED ALDEHYDES VIA α-CHLOROALDIMINES

The oxidation of aldehydes to α,β-unsaturated aldehydes has been performed by a sequence of reactions involving conversion into aldimines, chlorination at the α-position to form α-chloroaldimines, base-induced dehydrochlorination and hydrolysis.The four-step transformation can be executed without isolation of the intermediates.This method has been applied to the synthesis of an artificial flavor, i.e. 2-butyl-3-phenylpropenal.

The Mechanism of Ozone-Alkene Reactions in the Gas Phase. A Mass Spectrometric Study of the Reactions of Eight Linear and Branched-Chain Alkenes

The stable products of the low-pressure (4 - 8 torr (1 torr = 133.33 Pa)) gas-phase reactions of ozone with ethene, propene, 2-methylpropene, cis-2-butene, trans-2-butene, trans-2-pentene, 2,3-dimethyl-2-butene, and 2-ethyl-1-butene have been identified by using a photoionization mass spectrometer coupled to a stirred-flow reactor.The products observed are characteristic of (i) a primary Criegee split to an oxoalkane (aldehyde or ketone) and a Criegee intermediate, (ii) reactions of the Criegee intermediates such as unimolecular decomposition, secondary ozonide formation, etc., and (iii) secondary alkene chemistry involving OH and other free-radical products formed by the unimolecular decomposition of the Criegee intermediates.The secondary OH - alkene - O2 reactions account for a significant fraction of the alkene (CnH2n) consumed and lead to characteristic products such as Cn dioxoalkanes nH2n + 30)>, Cn acyloins nH2n + 32)>, and Cn alkanediols nH2n + 34)>.Cn oxoalkanes and Cn epoxyalkanes observed at m/e (CnH2n + 16) are probably formed primarily via epoxidation of the alkene by O3.A general mechanism has been proposed to account for the observations.