Bicyclo[2.2.2]octan-2-ol: Handling, Storage & Use Protocol

Bicyclo[2.2.2]octan-2-ol is a bicyclic secondary alcohol widely employed as a synthetic intermediate and conformationally rigid scaffold in organic chemistry research.

CAS Number

1448-72-2

Molecular Formula

C₈H₁₄O

Molecular Weight

126.20 g/mol

Appearance

White to off-white crystalline solid

Storage Condition

Store at room temperature in a cool, dry, well-ventilated area away from ignition sources

SKU

B191761

Reagent Overview and Properties

Bicyclo[2.2.2]octan-2-ol (CAS 1448-72-2, SKU B191761) is a bicyclic secondary alcohol with the molecular formula C₈H₁₄O and a molecular weight of approximately 126.20 g/mol. The compound features a rigid bicyclo[2.2.2]octane (bicyclooctane) carbon skeleton bearing a hydroxyl group at the 2-position. This conformationally constrained architecture makes it a valuable scaffold in medicinal chemistry, conformational studies, and as a synthetic building block for the preparation of strained-ring derivatives, esters, ethers, and ketones.

The compound typically presents as a white to off-white crystalline solid at room temperature. Its secondary alcohol functionality allows participation in a broad range of chemical transformations, including oxidation to the corresponding ketone (bicyclo[2.2.2]octan-2-one), esterification, etherification, and nucleophilic substitution reactions when converted to an appropriate leaving group.

Safety, Handling and Personal Protective Equipment

Before working with Bicyclo[2.2.2]octan-2-ol, consult the current Safety Data Sheet (SDS) available from Aladdin Scientific. Apply standard laboratory precautions appropriate for organic solid reagents:

• Eye protection: Wear chemical splash goggles at all times when handling the reagent or its solutions.
• Hand protection: Use chemically resistant gloves (nitrile recommended) to prevent skin contact.
• Respiratory protection: Work in a well-ventilated fume hood to avoid inhalation of dust or vapours. Use a dust/particulate respirator if ventilation is inadequate.
• Body protection: Wear a laboratory coat and closed-toe shoes.
• Ignition sources: Keep away from open flames and high heat sources; the compound is combustible as with most organic solids.

In case of skin or eye contact, flush immediately with copious water for at least 15 minutes and seek medical advice. Dispose of waste in accordance with local environmental regulations for organic solvent/solid waste.

Storage and Stability

Store Bicyclo[2.2.2]octan-2-ol (B191761) under the following recommended conditions to maintain reagent integrity:

• Store at room temperature (15–25 °C) in a cool, dry, and well-ventilated area.
• Keep the container tightly closed when not in use to prevent moisture absorption and contamination.
• Store away from incompatible materials including strong oxidising agents, strong acids, and strong bases.
• Protect from prolonged exposure to light.

Under proper storage conditions, the compound is expected to be stable for an extended period. Always check the certificate of analysis (CoA) for the specific lot expiry date. Before use, visually inspect the material for any changes in colour or physical form that may indicate degradation.

General Laboratory Protocol for Common Transformations

The following general procedures outline typical synthetic uses of Bicyclo[2.2.2]octan-2-ol as a starting material or intermediate. Specific reaction conditions should be optimised for each individual application.

Oxidation to Bicyclo[2.2.2]octan-2-one

1. Weigh the required quantity of Bicyclo[2.2.2]octan-2-ol (B191761) in a tared vial under ambient conditions.
2. Dissolve in an appropriate anhydrous solvent (e.g., dichloromethane or acetone) at a suitable concentration (typically 0.1–0.5 M).
3. Apply a standard oxidant compatible with secondary alcohols (e.g., pyridinium chlorochromate (PCC), Swern conditions, or Dess–Martin periodinane) following established procedures for each oxidant.
4. Monitor reaction progress by TLC or GC until the starting alcohol is consumed.
5. Work up and purify the product by standard methods (e.g., column chromatography on silica gel).

Esterification

1. Combine Bicyclo[2.2.2]octan-2-ol with the desired acyl chloride or anhydride (1.0–1.2 equiv) in anhydrous solvent.
2. Add a base (e.g., triethylamine, 1.5 equiv) and stir at room temperature or mild heating until complete.
3. Quench with water, extract, dry over anhydrous MgSO₄ or Na₂SO₄, filter, and concentrate.
4. Purify by column chromatography or recrystallisation as appropriate.

Note: All quantities, equivalents, temperatures, and solvents should be adapted to the specific synthetic target and scale. Always perform a risk assessment before commencing any reaction.

Quality Control and Verification

To verify the identity and purity of Bicyclo[2.2.2]octan-2-ol (B191761) upon receipt and before use, apply one or more of the following analytical techniques:

• Melting Point: Determine the melting point and compare against the reference value. Flag any significant deviation as a potential purity concern.
• ¹H NMR Spectroscopy: Record the proton NMR spectrum in a suitable deuterated solvent (e.g., CDCl₃). Confirm the characteristic signals for the bicyclic framework and the hydroxyl-bearing methine proton.
• GC or HPLC Purity: Use gas chromatography (GC) or high-performance liquid chromatography (HPLC) to determine purity percentage. Cross-reference with the Certificate of Analysis (CoA) provided by Aladdin Scientific.
• IR Spectroscopy: Confirm the broad O–H stretch (~3200–3550 cm⁻¹) characteristic of a secondary alcohol and the C–O stretch.

Retain the CoA and SDS for each lot received. Record all quality control data in a laboratory notebook or electronic laboratory notebook (ELN) for traceability and compliance.

Frequently asked questions

What is the recommended storage temperature for Bicyclo[2.2.2]octan-2-ol (B191761)?

Bicyclo[2.2.2]octan-2-ol should be stored at room temperature (15–25 °C) in a cool, dry, and well-ventilated area with the container tightly closed. No refrigeration is typically required under normal conditions, but always refer to the current SDS and CoA for lot-specific guidance.

What common reactions can Bicyclo[2.2.2]octan-2-ol undergo in synthetic chemistry?

As a secondary alcohol, Bicyclo[2.2.2]octan-2-ol can be oxidised to the corresponding ketone (bicyclo[2.2.2]octan-2-one) using standard oxidants such as PCC, Dess–Martin periodinane, or Swern conditions. It can also be esterified with acyl chlorides or anhydrides, converted to an ether, or transformed into a leaving group (e.g., mesylate or tosylate) for subsequent nucleophilic substitution reactions.

How should I confirm the identity and purity of Bicyclo[2.2.2]octan-2-ol upon receipt?

Upon receipt, compare the lot against the Certificate of Analysis (CoA) provided by Aladdin Scientific. Confirmatory techniques include melting point determination, ¹H NMR spectroscopy in CDCl₃, GC or HPLC purity analysis, and IR spectroscopy to confirm the secondary alcohol O–H stretch. Any significant discrepancy should be reported to Aladdin Scientific customer service.

Is Bicyclo[2.2.2]octan-2-ol air- or moisture-sensitive?

Bicyclo[2.2.2]octan-2-ol is not considered highly air- or moisture-sensitive under normal laboratory conditions. However, to maintain purity and prevent contamination, the container should be kept tightly closed when not in use and stored in a dry environment. Prolonged exposure to atmospheric moisture or light should be avoided as a general best practice.

References

1. Aladdin Scientific Product Page and Certificate of Analysis for Bicyclo[2.2.2]octan-2-ol, SKU B191761.
2. March, J. Advanced Organic Chemistry: Reactions, Mechanisms, and Structure, 4th ed.; Wiley-Interscience: New York, 1992. (General reference for secondary alcohol transformations.)
3. Clayden, J.; Greeves, N.; Warren, S. Organic Chemistry, 2nd ed.; Oxford University Press: Oxford, 2012. (General reference for oxidation and esterification protocols.)

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