2-Cyclopentylcyclopentanone
Overview
2-Cyclopentylcyclopentanone is a bicyclic ketone featuring two fused cyclopentane rings with a carbonyl group. It serves as a versatile intermediate in organic chemistry due to its rigid structure and reactivity. This compound is particularly valued in fragrance and pharmaceutical industries where complex cyclic structures are required. Its synthesis typically involves cyclization reactions of appropriate precursors under controlled conditions.
Physical and Chemical Properties
As a liquid at room temperature, 2-cyclopentylcyclopentanone exhibits moderate volatility with a boiling point around 220-230°C. Its density is slightly lower than water at approximately 0.95 g/cm³. The compound's ketone group makes it reactive toward nucleophiles, enabling various derivatization reactions. It shows good solubility in most organic solvents but negligible water solubility, which is typical for such hydrophobic cyclic structures.
Main Applications
In the fragrance industry, this ketone contributes to woody and amber notes in perfumes. Its constrained structure helps create long-lasting scent profiles. Pharmaceutical applications utilize it as a building block for more complex molecules, particularly those requiring rigid bicyclic frameworks. Some research suggests potential use in liquid crystal formulations due to its molecular geometry.
Safety and Storage
Standard laboratory precautions should be followed when handling 2-cyclopentylcyclopentanone. It may cause irritation upon contact with skin or eyes, necessitating proper PPE including gloves and goggles. Storage should be in tightly sealed containers under inert atmosphere when possible. Compatibility with common storage materials like glass and certain plastics should be verified, especially for long-term storage.
B2B Procurement Guide
Industrial buyers should prioritize suppliers who provide comprehensive analytical certificates including GC purity reports. Batch-to-batch consistency is crucial for manufacturing applications. Consider ordering samples for quality verification before large purchases. Transportation regulations for ketones should be reviewed, especially for international shipments where classification may vary by region.
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