Pentadecafluorooctanoyl chloride(CAS: 335-64-8)

Pentadecafluorooctanoyl chloride is a colorless liquid with a molecular weight of approximately 422.45. It has a low vapor pressure and is only slightly soluble in water. The compound exhibits high reactivity, especially towards nucleophiles, due to its electrophilic fluorinated acyl chloride moiety. It is typically used in organic synthesis and as a functional group in fluorinated materials. Its physical state is solid at room temperature, with a melting point around -40°C and a boiling point around 120°C.

Pentadecafluorooctanoyl chloride is usually synthesized by reacting pentadecafluoro-2-dodecanol with thionyl chloride in the presence of a suitable catalyst, such as aluminum chloride. The reaction is conducted in an inert atmosphere to prevent oxidation of the fluorinated alcohol. The yield is typically high, and the selectivity towards the desired product is good. The process requires careful handling due to the reactivity and volatility of the starting materials.

Pentadecafluorooctanoyl chloride finds applications in various industries, including pharmaceuticals, where it is used as a building block for fluorinated compounds with specific biological properties. It is also used in the polymer industry to introduce fluorinated side chains, enhancing the chemical stability and hydrophobicity of materials. Additionally, it is utilized in the development of sensors and semiconductors due to its unique chemical properties.

Handling Pentadecafluorooctanoyl chloride requires rigorous safety measures. Always wear appropriate personal protective equipment (PPE), including gloves, safety glasses, and a lab coat. Work in a well-ventilated area or a fume hood to minimize exposure. Store the compound in a cool, dry place away from sources of heat and ignition. In case of a spill, immediately contain it and follow the manufacturer's safety data sheet (SDS) guidelines for disposal. Avoid contact with skin and eyes, and seek medical attention if exposure occurs.