2-Amino-2'-methyldiphenyl Ether: Properties & Lab Use FAQ

2-Amino-2'-methyldiphenyl Ether is an aromatic amine compound featuring both an ether linkage and a primary amino group on adjacent phenyl rings, making it a versatile building block for organic synthesis and pharmaceutical research.

Chemical Name

2-Amino-2'-methyldiphenyl Ether

Aladdin SKU

A115494

Functional Groups

Primary aromatic amine (–NH₂) and aryl ether (Ar–O–Ar)

Compound Class

Aromatic amine / Diaryl ether

Typical Application

Intermediate in organic synthesis; building block for heterocyclic and pharmaceutical chemistry

Storage Recommendation

Store in a cool, dry, well-ventilated area away from light and incompatible materials

What Is 2-Amino-2'-methyldiphenyl Ether?

2-Amino-2'-methyldiphenyl Ether (Aladdin SKU A115494) is an organic compound belonging to the class of diaryl ethers bearing a primary aromatic amine substituent. Its structure consists of two phenyl rings connected by an oxygen bridge (the diaryl ether motif); one ring carries a primary amino group (–NH₂) at the ortho position while the other bears a methyl substituent also at the ortho position. This specific substitution pattern creates a conformationally constrained biaryl ether scaffold that is valuable in medicinal chemistry and materials science. The coexistence of a nucleophilic amine and a relatively electron-rich aryl ether system allows the molecule to participate in a range of synthetic transformations, including acylation, reductive amination, condensation with carbonyl compounds, and palladium-catalysed cross-coupling reactions.

Key Physical and Chemical Properties

As an ortho-substituted diaryl ether amine, 2-Amino-2'-methyldiphenyl Ether exhibits properties typical of this compound class. The primary amine group renders the molecule basic and capable of salt formation with acids, which is often exploited during purification or formulation steps. The aryl ether linkage is stable under most standard synthetic conditions but can be cleaved under strongly acidic or strongly reductive conditions. The methyl group at the 2'-position introduces steric effects that influence both the geometry of the molecule and its reactivity at nearby positions. Researchers should note that, like most aromatic amines, this compound may be susceptible to oxidation on prolonged exposure to air and light; therefore, appropriate storage under inert atmosphere or in amber containers is advisable. Specific numerical data such as melting point, boiling point, and exact purity grade should be confirmed against the current Aladdin certificate of analysis for lot A115494.

Research and Synthetic Applications

The orthogonally functionalized biaryl ether scaffold of 2-Amino-2'-methyldiphenyl Ether makes it useful in several research contexts:

• Pharmaceutical intermediates: Ortho-amino diaryl ethers are recognised structural motifs in kinase inhibitors and other bioactive small molecules; this compound can serve as a starting material or intermediate in the construction of such targets.
• Heterocyclic synthesis: The primary amine and the flanking aryl ether can be exploited in cyclisation reactions to access benzoxazole, phenoxazine, or related ring systems.
• Ligand design: Biaryl ether diamines and monoamines are employed as ligands in coordination chemistry and asymmetric catalysis.
• Polymer chemistry: Aromatic amine-containing diaryl ethers are precursors to high-performance polyimide and polybenzoxazole materials.

Researchers are encouraged to consult primary literature for specific reaction protocols and to verify applicability to their target molecules.

Safe Handling, Storage, and Disposal

As with all aromatic amine reagents, appropriate precautions should be observed when working with 2-Amino-2'-methyldiphenyl Ether:

• Personal protective equipment: Wear chemically resistant gloves, safety goggles, and a laboratory coat. Where dust or aerosol generation is possible, use a suitable fume hood or respiratory protection.
• Storage: Store in a tightly sealed container in a cool (typically 2–8 °C or room temperature as specified on the label), dry location away from light, oxidising agents, and strong acids.
• Stability: Protect from prolonged air exposure to prevent oxidative discolouration. Consider storage under nitrogen or argon for extended periods.
• Disposal: Dispose of in accordance with local, regional, and national regulations governing aromatic amine waste. Do not pour down the drain without appropriate treatment.

Always consult the current Safety Data Sheet (SDS) for SKU A115494, available from Aladdin Scientific, before first use.

Ordering and Specifications for SKU A115494

2-Amino-2'-methyldiphenyl Ether is available from Aladdin Scientific under SKU A115494. When placing an order or evaluating suitability for a project, consider the following:

• Purity grade: The exact purity specification is stated on the current product page and certificate of analysis. For synthetic applications, a higher purity grade minimises side reactions from impurities.
• Pack sizes: Multiple pack sizes may be available to suit both exploratory research and scale-up needs; confirm current availability on the Aladdin website or with your regional sales representative.
• Documentation: A certificate of analysis (CoA) and safety data sheet (SDS) are available upon request or via the Aladdin online portal.
• Lead time and shipping: Standard shipping conditions apply; temperature-sensitive packaging may be specified — confirm with Aladdin customer service at time of order.
• Bulk and custom enquiries: For quantities beyond standard catalogue offerings, contact Aladdin Scientific directly for pricing and lead-time information.

Frequently asked questions

What is the chemical structure of 2-Amino-2'-methyldiphenyl Ether?

2-Amino-2'-methyldiphenyl Ether consists of two phenyl rings linked by an oxygen atom (diaryl ether); one ring bears a primary amino group (–NH₂) at the ortho (2-) position, and the other ring carries a methyl group also at the ortho (2'-) position. This arrangement creates a conformationally restricted biaryl ether scaffold with two distinct functional handles—an amine and an ether—useful for diverse synthetic transformations.

How should 2-Amino-2'-methyldiphenyl Ether (A115494) be stored to maintain stability?

The compound should be stored in a tightly sealed container in a cool, dry location away from direct light and oxidising agents, consistent with standard practice for aromatic amines. For long-term storage, an inert atmosphere (nitrogen or argon) is recommended to prevent oxidative degradation. Always refer to the current Aladdin SDS and product label for lot-specific storage conditions.

What synthetic applications is 2-Amino-2'-methyldiphenyl Ether commonly used for?

The compound is used as a building block in pharmaceutical intermediate synthesis, heterocyclic chemistry (e.g., benzoxazole and phenoxazine ring formation), ligand design for coordination and asymmetric catalysis, and as a monomer precursor in high-performance polymer research. Its primary amine group allows acylation, reductive amination, and condensation reactions, while the diaryl ether scaffold is amenable to palladium-catalysed coupling strategies.

Is a Certificate of Analysis (CoA) available for SKU A115494?

Yes. A Certificate of Analysis for each production lot of 2-Amino-2'-methyldiphenyl Ether (A115494) is available through the Aladdin Scientific online portal or upon request from customer service. The CoA provides lot-specific data including purity, appearance, and any additional analytical test results relevant to the grade supplied.

What safety precautions should be taken when handling this aromatic amine reagent?

Handlers should wear chemically resistant gloves, safety goggles, and a laboratory coat, and work in a well-ventilated fume hood. As with aromatic amines generally, avoid inhalation of vapours or dust and prevent skin contact. Dispose of waste according to applicable regulations for aromatic amine compounds. The full safety profile is detailed in the SDS for A115494, which should be reviewed before first use.

References

1. Clayden, J.; Greeves, N.; Warren, S. Organic Chemistry, 2nd ed.; Oxford University Press: Oxford, 2012. (General reference for aromatic amine and diaryl ether chemistry.)
2. Aladdin Scientific. Product Page and Certificate of Analysis for 2-Amino-2'-methyldiphenyl Ether, SKU A115494. Retrieved from Aladdin Scientific website.

Products are supplied for research and development use only. Not for use in humans, animals, diagnosis, or therapy.