Ethyl diazoacetate, chemical formula C4H6O2N2, CAS 623-73-4, density 1.085 g/cm ³ (measured at 25 ℃). It is a colorless and transparent liquid at room temperature and pressure. However, some sources suggest that its color may appear as light yellow to orange, which may be due to differences in storage conditions or purity. Overall, its appearance is clear with no obvious impurities. It is an important organic compound widely used in the field of organic synthesis. Has a certain degree of volatility and is easily vaporized under high temperature or reduced pressure conditions.
However, the compound is not very stable at room temperature and slowly decomposes, releasing nitrogen gas. In addition, its decomposition rate is significantly affected by factors such as temperature and light. High temperature, ultraviolet radiation, and visible light all accelerate its decomposition process, as these factors provide sufficient energy to excite chemical reactions within the molecules. It also has some other important physical properties. For example, its strong intermolecular forces result in a higher boiling point; Meanwhile, the diazo group (N2C -) in its molecular structure endows it with unique chemical properties and application value.
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Chemical Formula |
C4H6N2O2 |
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Exact Mass |
114 |
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Molecular Weight |
114 |
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m/z |
114 (100.0%), 115 (4.3%) |
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Elemental Analysis |
C, 42.11; H, 5.30; N, 24.55; O, 28.04 |
Ethyl diazoacetate, bearing the molecular formula C₄H₆N₂O₂, is a typical organic compound featuring both diazo functional groups and ethyl ester moieties within its molecular framework. Such a distinctive chemical architecture grants the substance remarkably high reactivity under various reaction conditions. Thanks to its versatile chemical properties, it has been widely adopted and applied across numerous branches of chemical synthesis, pharmaceutical production and material research.
1. Synthesis of other diazo compounds
It is an important raw material for synthesizing other diazo compounds. Through specific chemical reactions, it can be converted into various diazo compounds, such as diazotoluene and other diazoaromatic compounds. These diazo compounds play a crucial role in organic synthesis and are commonly used to synthesize complex molecules such as dyes, pigments, and photosensitive materials.
2. Generate azo compounds and nitroso compounds
Capable of reacting with various compounds. For example, it can react with aromatic amines to generate corresponding azo compounds, which have wide applications in industries such as dyes, pigments, and pigment binders. In addition, it can react with amine compounds to generate nitroso compounds, which also have important application value.
3. Preparation of chrysanthemum acid or dichlorochrysanthemum acid
It is still an important intermediate for the preparation of chrysanthemum acid or dichlorochrysanthemum acid. Chrysanthemum acid and dichlorochrysanthemum acid are key raw materials for the synthesis of certain pesticides and pharmaceutical products, therefore it also plays an indispensable role in the production of pesticide and pharmaceutical intermediates.
4. Application in Biochemical Research
In the field of biochemistry research, it has also demonstrated its unique value. It can react with substituents in amino acids or proteins to generate corresponding diazo compounds. These diazo compounds can be used in biochemical research to label and analyze amino acids or proteins in samples, and then separated and detected through methods such as chromatography and electrophoresis. This method provides a new and effective means.
5. Potential applications in the field of medicine
This substance and its derivatives also have certain potential applications in the field of medicine. Research has shown that they can change the properties and activity of drugs by reacting with amino substituents in drug molecules. This provides a new strategy for developing novel drugs, especially for drugs containing amino acids or peptide chain structures, which may bring significant improvement in efficacy.
6. Photosensitive materials&photocatalysts
Products and their derivatives also play an important role in photosensitive materials and photocatalysts. They can generate dense conjugated systems through photo induced rearrangement reactions, thus possessing the ability to absorb light energy and conduct electrons. This makes them have broad application prospects in fields such as solar cells, photocatalysis, and optoelectronics. For example, in solar cells, derivatives of ethyl diazoacetate can be used as photosensitive materials to improve the conversion efficiency of solar cells; In the field of photocatalysis, they can serve as components of catalysts.
7. Preparation of azo dyes
Azo dyes are a type of dye widely used in textile, printing and dyeing, food and other fields. It can serve as an important intermediate for azo dyes by coupling with aromatic amine compounds to generate corresponding azo compounds, thereby achieving the synthesis of dyes. This method not only simplifies the production process of dyes, but also improves the quality and performance of dyes.
Ethyl diazoacetate and its derivatives do have promising applications in fields such as solar cells, photocatalysis and optoelectronics. The following is an analysis of their applications in these fields through specific cases:
Solar cell field
In the field of solar cells, derivatives of this can be used as photosensitive materials which have the ability to absorb light energy and conduct electrons, which is crucial for improving the conversion efficiency of solar cells. Although direct examples of specific applications of this or its derivatives in solar cells are relatively limited in the available information.
Possible mechanisms of action
Photosensitizing materials: Derivatives of this may, through their special chemical structure, undergo photochemical reactions in the presence of light to produce reactive species that are capable of conducting electrons, thereby enhancing the solar cell's ability to capture and convert light energy.
Interfacial modification
In polymer solar cells, an interfacial modification layer is essential to improve the efficiency and stability of the device. Derivatives of it may be chemically modified or functionalized to become effective interfacial modification materials, improving the contact between the active layer and the electrode, reducing charge complexation, and increasing charge extraction efficiency.
Photocatalytic field
In the field of photocatalysis, this drug and its derivatives can be used as components of catalysts to promote the progress of photocatalytic reactions. The following is a specific application case:
- Components of photocatalysts: Diazo compounds can be decomposed under light to generate carbene active species, which may play a key role in photocatalytic reactions. For example, in some photocatalytic oxidation reactions, derivatives of it can act as co-catalysts or co-catalysts of the catalysts and synergize with the main catalysts to improve the reaction rate and selectivity.
- Promoting photochemical reactions: Derivatives of this may also affect the charge transfer and energy transfer processes in photocatalytic reactions through their special chemical properties, such as conjugation systems and electronic effects, thus promoting the reactions.
Photonics field
In the field of photonics, the applications of this and its derivatives are mainly focused on the preparation of photosensitive materials and optoelectronic devices. Although specific application cases may vary depending on the research field and specific needs, it is foreseeable that the application of this derivatives in the field of optoelectronics will involve the following aspects.
Technology First
A variety of transmission components
Preparation of photosensitive devices:
By utilizing the photosensitive nature of the derivatives of it photosensitive devices with specific spectral response ranges, such as photodetectors and optical switches, can be prepared.
Optimization of the performance of optoelectronic devices:
Through chemical modification or functionalization, the derivatives of this can improve the performance of optoelectronic devices, such as increasing the response speed and decreasing the dark current.
In summary, Ethyl diazoacetata and its derivatives have broad application prospects in the fields of solar cells, photocatalysis and optoelectronics. Although the specific application cases and mechanisms need further experimental studies and data support, their unique chemical and photosensitizing properties have provided new ideas and methods for research in these fields.
References
1. Xin D, Lu Y. Thermal Decomposition of Ethyel Diazoacetate in Microtube Reactor: A Kinetics Study[J]. ACS Omega, 2018, 3(9): 11245-11253. 2. Silva-Jr F P, Ferreira S B. Ethyel Diazoacetate[J]. SynOpen, 2023, 7(1): 110-120. 3. Wang C, Li G. Continuous Flow Synthesis of Ethyl Diazoacetate and CFD Analysis of Micromixing Efficiency[J]. Chemical Industry and Engineering Progress, 2024, 43(7): 3245-3253.
The Development of the Enantioselective Addition of Ethyel Diazoacetate to Aldehydes: Asymmetric Synthesis of 1,2-Diols (https://pmc.ncbi.nlm.nih.gov/articles/PMC3271135/)
Magnesium-Catalyzed Asymmetric Direct Aldol Addition of Ethyel Diazoacetate to Aromatic, Aliphatic, and α,β-Unsaturated Aldehydes(https://pmc.ncbi.nlm.nih.gov/articles/PMC2652472/)
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What is etheyl diazoacetate used for?
It serves as a versatile synthetic building block for constructing a variety of cyclic molecular frameworks, including cyclopropanes, cyclopropenes, triazoles and pyrazolines. Beyond cyclic compound synthesis, this reagent is also widely applicable to classic cycloaddition reactions and catalytic reactions mediated by transition metal catalysts. Additionally, it can facilitate the olefination transformation of aldehyde substrates. In synthetic routes that require the introduction of ester functional groups onto molecular skeletons, ethyl diazoacetate acts as an ideal choice for structural modification. Furthermore, it shows excellent adaptability and stable performance in modern synthetic techniques such as continuous flow chemistry processes.
What is the EAA reagent?
Ethyl acetoacetate is a highly multifunctional organic reagent widely applied in organic synthesis. It typically acts as an effective nucleophile and participates in a great many classic organic transformations, including alkylation reactions, conjugate addition reactions and diverse condensation reactions. It possesses remarkably flexible reaction characteristics and extensive application scenarios in synthetic routes. A representative application lies in its reaction at the α-carbon position. When ethyl acetoacetate undergoes selective alkylation at the α-carbon site, and the resultant intermediate is subsequently subjected to hydrolysis and decarboxylation treatments, the whole synthetic sequence can efficiently yield a broad spectrum of structurally diverse methyl ketone compounds. This mature synthetic route has long become a reliable method for preparing methyl ketones in laboratory research and industrial production.
What is etheyl cyanoacetate?
Ethyl cyanoacetate is an organic compound that contains a carboxylate ester and a nitrile. It is a colourless liquid with a pleasant odor. This material is useful as a starting material for synthesis due to its variety of functional groups and chemical reactivity.
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