Methyl 2-(4-(tert-butyl)phenoxy)acetate: Synthesis & Use Protocol

Methyl 2-(4-(tert-butyl)phenoxy)acetate is a phenoxyacetate ester reagent widely employed in organic synthesis as a versatile building block for pharmaceutical intermediates, agrochemical research, and fine-chemical preparation.

Chemical Name

Methyl 2-(4-(tert-butyl)phenoxy)acetate

SKU

M695390

Functional Class

Aryl phenoxyacetate ester; organic synthesis building block

Key Structural Features

para-tert-butyl substituted phenoxy group with methyl ester moiety

Typical Applications

Pharmaceutical intermediate synthesis, agrochemical research, fine chemical production

Storage Recommendation

Store in a cool, dry, well-ventilated area away from incompatible materials; keep container tightly sealed

Overview and Chemical Properties

Methyl 2-(4-(tert-butyl)phenoxy)acetate (SKU: M695390) is an aryl ether ester featuring a para-tert-butylphenoxy group linked to a methyl acetate moiety. The tert-butyl substituent imparts enhanced lipophilicity and steric bulk, which can influence selectivity in downstream reactions and improve membrane permeability of derived compounds in biological studies. As a phenoxyacetate ester, it serves as a masked form of the corresponding phenoxyacetic acid, readily hydrolysable under basic or acidic aqueous conditions to reveal the free carboxylic acid for further functionalization.

The compound belongs to the broader family of phenoxyacetic acid derivatives that have found application in herbicide chemistry, pharmaceutical synthesis, and materials science. Its methyl ester form offers ease of handling and compatibility with a wide range of nucleophilic and electrophilic transformations.

Safety and Handling Guidelines

Before working with Methyl 2-(4-(tert-butyl)phenoxy)acetate, consult the current Safety Data Sheet (SDS) provided by Aladdin Scientific. Standard laboratory precautions for organic ester compounds apply:

• Personal Protective Equipment (PPE): Wear chemical-resistant gloves (e.g., nitrile), laboratory coat, and safety goggles. Use a face shield if splashing is possible.
• Ventilation: Handle in a well-ventilated fume hood to minimise inhalation of vapours.
• Skin and Eye Contact: In case of skin contact, wash thoroughly with soap and water. For eye contact, irrigate immediately with copious water for at least 15 minutes and seek medical attention.
• Incompatibilities: Keep away from strong oxidising agents, strong bases, and strong acids.
• Disposal: Dispose of waste in accordance with local environmental regulations for organic solvent/ester waste streams.

Note: Specific GHS hazard classifications should be confirmed against the official SDS for lot M695390.

Storage and Stability

To maintain the integrity and purity of Methyl 2-(4-(tert-butyl)phenoxy)acetate over time, observe the following storage conditions:

• Store in a cool, dry, and well-ventilated location, away from direct sunlight and heat sources.
• Keep the container tightly sealed when not in use to prevent moisture ingress and evaporation of the methyl ester.
• Store away from incompatible reagents including strong oxidisers, strong acids, and strong bases.
• Recommended storage temperature should be confirmed from the product label or SDS; refrigerated storage (2–8 °C) is typically appropriate for methyl ester compounds of this class.
• Check the material periodically for discolouration or turbidity, which may indicate decomposition or contamination.

Properly stored, the compound is expected to be stable for an extended period consistent with manufacturer specifications. Always verify the expiry date on the product label before use.

Preparation and Typical Experimental Protocol

The following general protocol describes how to prepare solutions of Methyl 2-(4-(tert-butyl)phenoxy)acetate for use as a synthetic building block or reagent. Adapt concentrations and solvents to the specific transformation being carried out.

Materials Required

• Methyl 2-(4-(tert-butyl)phenoxy)acetate (M695390, Aladdin Scientific)
• Appropriate anhydrous organic solvent (e.g., dichloromethane, THF, acetonitrile, or DMF depending on the reaction)
• Analytical balance (±0.1 mg)
• Volumetric glassware or microsyringes
• Inert atmosphere equipment (Schlenk line or glovebox) if moisture-sensitive conditions are required

Procedure

1. Weigh: Accurately weigh the required mass of Methyl 2-(4-(tert-butyl)phenoxy)acetate into a clean, dry vial using an analytical balance.
2. Dissolve: Add the appropriate volume of anhydrous solvent to achieve the desired concentration. For most synthetic applications, stock solutions of 0.1–1.0 M are convenient.
3. Mix: Stir or sonicate gently until the compound is completely dissolved. The compound is expected to be soluble in common organic solvents such as DCM, EtOAc, THF, and DMF.
4. Transfer: Transfer the prepared solution to the reaction vessel under inert atmosphere if the reaction requires anhydrous or oxygen-free conditions.
5. React: Carry out the intended transformation (e.g., hydrolysis to the free acid, amide coupling, transesterification, or use as an electrophilic partner in nucleophilic substitution) according to the specific reaction protocol.
6. Work-up: Upon reaction completion, perform standard aqueous work-up or column chromatography as appropriate for the target product.

Always optimise solvent, temperature, and reagent stoichiometry for the specific reaction. Consult primary literature for reaction-specific protocols involving phenoxyacetate esters.

Quality Control and Analytical Characterisation

To confirm the identity and purity of Methyl 2-(4-(tert-butyl)phenoxy)acetate before use in critical experiments, the following analytical techniques are recommended:

• TLC (Thin-Layer Chromatography): Run against a reference standard in a suitable solvent system (e.g., hexane/ethyl acetate 9:1) to confirm Rf value and spot homogeneity.
• ¹H NMR Spectroscopy: Characteristic signals expected include aromatic protons of the para-disubstituted phenyl ring (two sets of doublets, ~4H), OCH₂ methylene protons (~2H singlet), OCH₃ methyl ester (~3H singlet), and tert-butyl group (~9H singlet). Spectra should be acquired in CDCl₃ or DMSO-d₆.
• GC or HPLC Purity: Use reversed-phase HPLC (C18 column, acetonitrile/water gradient) or GC-FID to confirm purity ≥98% as specified for research-grade material.
• Mass Spectrometry: Confirm molecular ion consistent with the expected molecular formula by ESI-MS or EI-MS.

Specific purity specifications and Certificate of Analysis (CoA) data for lot M695390 are available from Aladdin Scientific upon request. Always refer to the CoA for lot-specific analytical data.

Frequently asked questions

What is Methyl 2-(4-(tert-butyl)phenoxy)acetate used for in research?

Methyl 2-(4-(tert-butyl)phenoxy)acetate serves as a versatile building block in organic synthesis, particularly for the preparation of pharmaceutical intermediates, agrochemical compounds, and fine chemicals. The methyl ester can be hydrolysed to the corresponding phenoxyacetic acid or transformed via amide coupling, transesterification, and nucleophilic substitution reactions.

What solvents are suitable for dissolving Methyl 2-(4-(tert-butyl)phenoxy)acetate?

Due to its lipophilic tert-butyl group and ester functionality, this compound is expected to dissolve readily in common organic solvents including dichloromethane (DCM), ethyl acetate (EtOAc), tetrahydrofuran (THF), acetonitrile, and dimethylformamide (DMF). It is generally poorly soluble in water due to its hydrophobic character.

How should Methyl 2-(4-(tert-butyl)phenoxy)acetate be stored to ensure long-term stability?

Store the compound in a tightly sealed container in a cool, dry, and well-ventilated area away from direct sunlight, heat sources, strong acids, strong bases, and oxidising agents. Refrigerated storage (2–8 °C) is typically recommended for methyl ester compounds of this class. Always verify storage conditions on the product label or SDS supplied by Aladdin Scientific.

Is Methyl 2-(4-(tert-butyl)phenoxy)acetate available as a catalogue product from Aladdin Scientific?

Yes, Methyl 2-(4-(tert-butyl)phenoxy)acetate is available from Aladdin Scientific under SKU M695390. Contact Aladdin Scientific's sales team or visit the product page for current pricing, available pack sizes, and lead times.

What analytical methods confirm the identity and purity of this compound?

Identity and purity can be confirmed by ¹H NMR spectroscopy (characteristic aromatic, OCH₂, OCH₃, and tert-butyl resonances), TLC, reversed-phase HPLC or GC-FID for purity quantification, and mass spectrometry for molecular ion confirmation. Lot-specific Certificate of Analysis data is available from Aladdin Scientific upon request.

References

1. Clayden, J.; Greeves, N.; Warren, S. Organic Chemistry, 2nd ed.; Oxford University Press: Oxford, 2012. (General reference for ester chemistry and phenoxyacetate transformations.)
2. Aladdin Scientific. Product Page and Certificate of Analysis for Methyl 2-(4-(tert-butyl)phenoxy)acetate, SKU M695390. Aladdin Scientific Corp.

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