Compound Overview and Chemical Properties

Ethyl 2-((2,6-dimethylphenyl)amino)-2-oxoacetate (SKU: E697573) is an alpha-ketoamide ester derived from the condensation of 2,6-dimethylaniline with ethyl oxalyl chloride or a related oxalic acid monoester derivative. The molecule features two electrophilic carbonyl groups: an amide carbonyl linked to the sterically hindered 2,6-dimethylphenyl (2,6-xylidyl) group, and an ester carbonyl available for further synthetic elaboration.

The presence of the two ortho-methyl substituents on the aniline ring imparts considerable steric bulk around the nitrogen atom, reducing nucleophilicity at nitrogen and influencing the compound's reactivity profile in subsequent transformations. This steric shielding is frequently exploited in the design of bioactive molecules, particularly in the context of herbicide and pharmaceutical intermediate synthesis.

Note: Specific physicochemical data (melting point, boiling point, logP, solubility values) are not confirmed in the source material and should be verified against the certificate of analysis or a validated chemical database prior to use.

Safety and Storage Guidelines

Before working with Ethyl 2-((2,6-dimethylphenyl)amino)-2-oxoacetate, consult the current Safety Data Sheet (SDS) available from Aladdin Scientific. As an aromatic amide ester, this compound should be handled with standard laboratory precautions appropriate for reactive organic intermediates.

• Personal Protective Equipment (PPE): Wear chemical-resistant gloves (nitrile recommended), safety goggles, and a laboratory coat. Work in a well-ventilated fume hood.
• Storage: Store in a tightly sealed container, away from moisture, heat, and incompatible reagents (strong acids, bases, and oxidizers). Recommended storage at cool, dry conditions; refer to the product label for specific temperature requirements.
• Disposal: Dispose of waste in accordance with local institutional and regulatory guidelines for organic chemical waste.

Review flag: GHS hazard classification, specific H/P statements, and flash point have not been confirmed from source material and must be verified from the official SDS before use.

Solution Preparation Protocol

The following general protocol describes preparation of a stock solution of Ethyl 2-((2,6-dimethylphenyl)amino)-2-oxoacetate for use in synthetic reactions. Adapt concentrations and solvent choice to your specific experimental requirements.

1. Equilibrate to room temperature: Allow the sealed vial to equilibrate to ambient temperature before opening to prevent moisture condensation on the compound.
2. Select appropriate solvent: This compound is expected to be soluble in common organic solvents such as dichloromethane (DCM), tetrahydrofuran (THF), ethyl acetate, and dimethyl sulfoxide (DMSO) based on its structural class. Solubility in water is expected to be low. Verify solubility empirically for your specific application.
3. Weigh accurately: Tare a clean, dry vial and weigh the required mass of compound using an analytical balance.
4. Prepare stock solution: Add the appropriate volume of dry, degassed solvent to achieve the desired concentration. Stir or vortex gently until fully dissolved.
5. Quality check: Visually confirm complete dissolution. If turbidity is observed, filter through a 0.22 µm PTFE syringe filter.
6. Storage of solution: Use freshly prepared solutions where possible. If storage is necessary, seal under inert atmosphere (argon or nitrogen) and store at the recommended temperature.

Review flag: Specific solubility data and recommended stock concentrations are not confirmed from source material; experimental validation is required.

Synthetic Applications and Reaction Considerations

Ethyl 2-((2,6-dimethylphenyl)amino)-2-oxoacetate serves as a bifunctional electrophilic synthon owing to its dual carbonyl system. Key application contexts include:

• Nucleophilic addition/substitution at the ester carbonyl: The ethyl ester moiety can be hydrolyzed, transesterified, or converted to amides, acid chlorides, or other acyl derivatives under standard conditions, providing access to the corresponding alpha-ketoamide acid or further functionalized products.
• Condensation reactions: The alpha-keto functionality enables Knoevenagel-type condensations, cyclocondensations with bifunctional nucleophiles (hydrazines, hydroxylamines, amino acids), or use as a two-carbon ketoacid equivalent in heterocycle synthesis.
• Agrochemical and pharmaceutical intermediate synthesis: The 2,6-dimethylphenyl (xylidyl) pharmacophore is a recognized motif in numerous bioactive compounds, including certain anilide-class herbicides and local anesthetic analogues.

When planning reactions, account for the steric hindrance of the 2,6-dimethylphenyl group, which may slow reactions at the adjacent amide nitrogen and necessitate forcing conditions or activated reagents. Monitor reactions by TLC or HPLC and confirm product identity by NMR and mass spectrometry.

Review flag: Specific reaction yields, conditions, and literature precedents have not been confirmed from source material. Researchers should conduct a primary literature search before designing experiments.

Quality Control and Analytical Verification

To confirm identity and purity of Ethyl 2-((2,6-dimethylphenyl)amino)-2-oxoacetate (E697573) upon receipt and before use in sensitive applications, apply the following standard analytical approaches:

• Certificate of Analysis (CoA): Review the batch-specific CoA supplied by Aladdin Scientific for purity, appearance, and any spectroscopic data provided.
• Thin-Layer Chromatography (TLC): Run a single-spot check against a reference standard in a suitable solvent system (e.g., ethyl acetate/hexane) to confirm homogeneity.
• NMR Spectroscopy: 1H NMR should show characteristic aromatic protons of the 2,6-dimethylphenyl ring (typically two sets of aryl protons), the NH amide proton, methyl singlets from the two ortho-methyl groups, the ethyl ester quartet and triplet, and absence of impurity signals. 13C NMR should confirm both carbonyl resonances.
• Mass Spectrometry: Confirm the molecular ion consistent with the molecular formula. The exact molecular weight should be verified against the CoA or chemical database.
• HPLC Purity: Reverse-phase HPLC (C18 column, UV detection) provides quantitative purity assessment.

Review flag: Specific NMR chemical shift values, exact molecular weight, and HPLC method parameters are not confirmed from source material and must be sourced from the CoA or validated chemical databases.