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Description
TCI E0060 2-Ethylaniline is a primary aromatic amine that carries an ethyl group at the ortho position relative to the amino group. The placement of that ethyl group directly adjacent to the nitrogen is what distinguishes the compound from ordinary aniline and makes it a starting material of particular value in organic synthesis. In the laboratory it serves as an intermediate in the preparation of dyes, as a starting material for the synthesis of nitrogen-containing heterocyclic compounds, and as a supplier of the substituted aniline framework in active-ingredient synthesis work as well as in the preparation of ligands for coordination chemistry and catalysis.
The property that leads chemists to select this material is the steric hindrance contributed by the ortho ethyl group. That hindrance slows down some reactions at the nitrogen, but it is precisely this behaviour that is useful for steering reaction pathways and preventing the formation of unwanted side products. As a primary amine, the nitrogen remains available for acylation, for diazotisation, and for condensation with aldehydes to form imines. This ortho substitution pattern is also widely exploited in the preparation of hindered amine-type ligands used in transition metal catalysis, where control over the environment around the metal centre matters.
In Indonesian laboratories, 2-Ethylaniline is typically handled in university and institutional synthetic chemistry groups, in research and development laboratories working on dye and fine chemical routes, and in catalysis groups building ligand systems. The synthesis-grade quality from TCI helps keep the material from darkening excessively through oxidation during storage, which matters in warm and humid working conditions where reagents are often kept for extended periods between synthetic campaigns.
Laboratory Applications
Dye intermediate synthesis: the primary aromatic amine can be diazotised and coupled, while the ortho ethyl group modifies the electronic and steric environment of the resulting chromophore framework.
Nitrogen heterocycle construction: the free primary amine together with the adjacent aromatic ring provides the nitrogen and carbon framework needed to build fused nitrogen-containing heterocyclic systems.
Hindered ligand preparation: condensation of the amine with aldehydes gives imine ligands whose ortho ethyl groups shield the metal centre in transition metal catalysis.
Active ingredient route development: the compound delivers a ready-made substituted aniline skeleton, saving synthetic steps when an ortho-alkylated aniline fragment is required in a target molecule.
Selective acylation and derivatisation studies: the steric hindrance at nitrogen slows competing reactions, making the material useful for directing reaction pathways and suppressing unwanted side products.
Specifications
Brand: TCI (Tokyo Chemical Industry)
CAS number: 578-54-1
Category: Chemistry > Building Blocks > Non-Heterocyclic Building Blocks
Product code: E0060
Pack sizes: available in the standard TCI catalogue pack sizes; please confirm the size required when ordering
Storage note: keep in a tightly closed original container, protected from light and air, in a cool and well-ventilated storage area
Handling and Storage
Store 2-Ethylaniline in its tightly closed original container in a cool, dry and well-ventilated area, away from direct sunlight, heat sources and oxidising agents. Amber glass or the supplier's original packaging is suitable, since limiting exposure to light and air helps reduce oxidative darkening of the material. Handle the compound inside a functioning fume hood and wear chemical-resistant gloves, safety goggles and a laboratory coat, because aromatic amines can be absorbed through the skin. Avoid breathing vapours, keep containers closed when not in use, and reseal promptly after dispensing. Wash hands thoroughly after handling, and collect residues and contaminated materials as chemical waste in accordance with your institution's laboratory waste procedures. Always consult the manufacturer's safety data sheet before first use.
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