Handling & Use Protocol: Cyclohexenecarbaldehyde Oxime
Handling & Use Protocol: Cyclohexenecarbaldehyde Oxime
(E)-4-(Prop-1-en-2-yl)cyclohex-1-enecarbaldehyde oxime is a bifunctional organic compound featuring both a terminal alkene (isopropenyl) group and an E-configured aldoxime moiety on a cyclohexene scaffold, making it a versatile intermediate for research applications in organic synthesis and chemical biology.
- Product SKU
- E423196
- Chemical Name
- (E)-4-(Prop-1-en-2-yl)cyclohex-1-enecarbaldehyde oxime
- Functional Groups
- Aldoxime (C=N–OH, E-configuration) and isopropenyl alkene
- Core Scaffold
- Cyclohex-1-ene ring
- Reference Compound
- E192651
- Storage Recommendation
- Store in a cool, dry, well-ventilated area away from heat, moisture, and incompatible oxidising agents
- Handling Environment
- Use in a fume hood with appropriate PPE including gloves, lab coat, and eye protection
Materials and Safety Precautions
(E)-4-(Prop-1-en-2-yl)cyclohex-1-enecarbaldehyde oxime (SKU E423196) is a speciality organic reagent supplied by Aladdin Scientific. Before beginning any experimental work, consult the Safety Data Sheet (SDS) for this compound and its reference material E192651.
Required personal protective equipment (PPE):
- Chemical-resistant gloves (nitrile recommended)
- Laboratory coat or chemical-resistant apron
- Safety glasses or goggles
- Use in a well-ventilated fume hood
Materials needed:
- Aladdin E423196 compound (weighed quantity as required by your protocol)
- Appropriate anhydrous organic solvent (e.g., dichloromethane, ethyl acetate, or DMSO, depending on application)
- Analytical balance (0.1 mg resolution)
- Amber glass vials or screw-cap vessels for storage of solutions
- Inert gas supply (nitrogen or argon) if air-sensitive conditions are required
Note: Oxime-containing compounds may be sensitive to strong acids, strong bases, and reducing agents. Verify compatibility with all reagents in your specific workflow before use.
Storage and Handling Procedure
Proper storage and handling ensure the long-term stability and purity of (E)-4-(Prop-1-en-2-yl)cyclohex-1-enecarbaldehyde oxime.
- Upon receipt: Inspect the container for integrity. Record the lot number and receipt date for traceability.
- Storage conditions: Store the compound in a tightly sealed container in a cool (2–8 °C recommended unless otherwise stated on the label), dry, and well-ventilated location. Protect from light, moisture, and heat sources.
- Inert atmosphere: If the compound shows sensitivity to moisture or oxygen under your experimental conditions, transfer and store under an inert atmosphere of nitrogen or argon.
- Weighing: Tare an appropriate vessel on an analytical balance. Quickly transfer the required mass of compound and reseal the stock container immediately to minimise atmospheric exposure.
- Solution preparation: Dissolve in a compatible anhydrous organic solvent at the desired concentration. Prepare fresh solutions where possible, or store solutions in sealed amber vials at low temperature.
- Waste disposal: Dispose of residues and solvent waste in accordance with institutional and local regulations for organic chemical waste. Do not pour down the drain.
Refer to reference compound E192651 for comparative physicochemical data where applicable.
Application in Research Workflows
(E)-4-(Prop-1-en-2-yl)cyclohex-1-enecarbaldehyde oxime combines a cyclohexene ring bearing an E-aldoxime group at C-1 and an isopropenyl group at C-4. This bifunctionality makes it potentially useful in the following research contexts:
- Organic synthesis intermediates: The aldoxime group can undergo further transformations including reduction to primary amines, oxidation to nitrile oxides for 1,3-dipolar cycloaddition reactions, or condensation reactions with electrophiles. The isopropenyl group offers opportunities for olefin metathesis, Diels–Alder, or radical reactions.
- Ligand or building-block development: Oxime-containing cyclohexene scaffolds are encountered in natural product synthesis and as building blocks for biologically active compound libraries.
- Analytical reference standards: The compound may serve as a reference or calibration standard in chromatographic or spectroscopic analyses involving structurally related targets.
General procedure outline for solution-phase reactions:
- Prepare a stock solution of E423196 at the desired concentration in a suitable anhydrous solvent.
- Add reagents in the order specified by your synthetic protocol, maintaining appropriate temperature control.
- Monitor reaction progress by TLC, HPLC, or NMR as appropriate.
- Work up and purify the product using standard techniques (column chromatography, recrystallisation, etc.).
- Characterise the product by 1H NMR, 13C NMR, MS, and IR to confirm identity and purity.
Specific reaction conditions will depend on the target transformation. Consult primary literature for reaction parameters relevant to your application.
Quality Control and Verification
To ensure experimental reliability when using (E)-4-(Prop-1-en-2-yl)cyclohex-1-enecarbaldehyde oxime (E423196), the following quality control checks are recommended:
- Purity assessment: Prior to use, verify compound purity by HPLC or GC against the certificate of analysis (CoA) provided with the product lot.
- Identity confirmation: Confirm structural identity using 1H NMR. Key expected signals include: vinyl protons of the cyclohexene ring, the oxime CH (N–OH), the isopropenyl CH2 and CH3 groups, and the oxime OH (broad, may exchange in D2O).
- E/Z isomer check: The E-configuration of the oxime is specified for this product. If stereochemical purity is critical, confirm by NOE experiments or comparison with reference data from compound E192651.
- Stability monitoring: If the compound has been stored for an extended period or under non-ideal conditions, re-evaluate purity before use in quantitative experiments.
All quality control data should be documented in a laboratory notebook or electronic laboratory notebook (ELN) and linked to the product lot number for traceability.
Frequently asked questions
What solvent is recommended for dissolving (E)-4-(Prop-1-en-2-yl)cyclohex-1-enecarbaldehyde oxime?
Based on the compound's structure (a moderately polar organic molecule with an oxime group), common polar aprotic or chlorinated solvents such as dichloromethane, ethyl acetate, DMSO, or acetonitrile are generally suitable starting choices. The optimal solvent will depend on the specific downstream application and should be determined empirically. Consult the CoA and reference material E192651 for any supplier-provided solubility data.
How should the E-configuration of the oxime be confirmed?
The E-configuration of the oxime group in this compound can be confirmed by nuclear Overhauser effect (NOE) NMR experiments, which reveal spatial proximity between the oxime proton and neighbouring ring protons. Additionally, comparison of chemical shift data with the reference compound E192651 or published spectral databases can support stereochemical assignment. If absolute confirmation is required, X-ray crystallography may be employed.
Is (E)-4-(Prop-1-en-2-yl)cyclohex-1-enecarbaldehyde oxime compatible with aqueous reaction conditions?
Oxime groups are generally stable under neutral aqueous conditions but may undergo hydrolysis back to the parent aldehyde under strongly acidic or strongly basic aqueous environments. The isopropenyl and cyclohexene alkene groups are generally stable to water. If aqueous conditions are required, perform a stability test at the intended pH before proceeding with the full protocol, and buffer the system appropriately.
What is the relationship between E423196 and reference compound E192651?
According to the product documentation, E192651 is listed as a reference compound for E423196. This typically indicates that E192651 is a structurally related compound — likely the parent aldehyde or a closely related analogue — which may be used for comparative characterisation, spectral reference, or as a synthetic precursor or product. Consult the individual product pages for both SKUs for detailed structural and physicochemical information.
References
- Aladdin Scientific. Product information for (E)-4-(Prop-1-en-2-yl)cyclohex-1-enecarbaldehyde oxime, SKU E423196. Reference: E192651.
- March, J. Advanced Organic Chemistry: Reactions, Mechanisms, and Structure, 4th ed.; Wiley-Interscience: New York, 1992. (General reference for oxime chemistry and transformations.)
- Smith, M. B. March's Advanced Organic Chemistry, 7th ed.; Wiley: Hoboken, NJ, 2013. (Reference for aldoxime reactivity and E/Z isomerism.)
Products are supplied for research and development use only. Not for use in humans, animals, diagnosis, or therapy.
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