Laurolactam, identified by its CAS number 947-04-6, is a significant macrocyclic lactam with a molecular formula of C12H23NO and a molar mass of approximately 197.32 g/mol. Commonly referred to as dodecalactam or azacyclotridecan-2-one, this compound plays a crucial role as a monomer in the production of engineering plastics, most notably Nylon-12, and also finds application as an intermediate in various chemical synthesis pathways.

Understanding the physical and chemical properties of Laurolactam is vital for its effective utilization. Typically, it appears as a white to light yellow crystalline powder. It has a melting point range of 150-153 °C, a boiling point of approximately 334.44 °C, and a density of around 0.9415. Its solubility in water is low (0.03 wt%), but it readily dissolves in many organic solvents such as benzene, cyclohexane, and 1,4-dioxane. These properties are important considerations for handling, purification, and reaction design.

The synthesis of Laurolactam is primarily achieved through a multi-step process starting from cyclododecane. Cyclododecane is first oxidized to a mixture of cyclododecanol and cyclododecanone, which is then dehydrogenated to cyclododecanone. This cyclododecanone is subsequently reacted with hydroxylamine to form cyclododecanone oxime. The critical step is the Beckmann rearrangement of the oxime in the presence of a strong acid catalyst, which converts it into Laurolactam. An alternative route involves the photonitrosation of cyclododecane with nitrosyl chloride, followed by extraction and Beckmann rearrangement of the resulting oxime.

For industrial applications, achieving high purity is essential. Manufacturers often employ multistage distillation under reduced pressure, combined with crystallization, to obtain Laurolactam with purity exceeding 99%. This high-purity material is crucial for polymerization processes that require precise control over molecular weight and polymer properties.

As a leading chemical supplier, NINGBO INNO PHARMCHEM CO.,LTD. provides high-quality Laurolactam for diverse industrial needs. Whether you are involved in polymer manufacturing or require this compound as an intermediate for organic synthesis, our product meets stringent quality standards. We are committed to being a reliable manufacturer and supplier, offering competitive pricing and consistent availability. If you are looking to buy Laurolactam, contact us to receive a quote and detailed product information.

The detailed understanding of Laurolactam's properties and synthesis pathways enables chemists and engineers to optimize its use and develop new applications.