Methyl N-Boc-piperidine-3-carboxylate (CAS: 148763-41-1) is a significant intermediate compound in the realm of organic chemistry and pharmaceutical manufacturing. Its structural attributes and versatile reactivity make it a sought-after building block for chemists engaged in the synthesis of complex organic molecules, including active pharmaceutical ingredients (APIs).

Chemical Characteristics and Physical Properties

This compound is typically presented as a white solid, with a characteristic melting point range of 47.0-51.0 °C. Its chemical formula is C12H21NO4, and its molecular weight is 243.3 g/mol. The presence of the tert-butoxycarbonyl (Boc) protecting group on the piperidine nitrogen atom is a key feature, providing stability under various reaction conditions while allowing for facile deprotection when needed. The methyl ester at the 3-position of the piperidine ring offers a functional handle for further chemical transformations, such as hydrolysis to the carboxylic acid, amidation, or reduction to the corresponding alcohol.

Synthesis Pathways

A common synthetic route for Methyl N-Boc-piperidine-3-carboxylate involves the esterification of 1-Boc-piperidine-3-carboxylic acid. This can be achieved by reacting the carboxylic acid with methanol in the presence of an acid catalyst or by using esterification reagents like trimethylsilyldiazomethane. For instance, treatment of 1-Boc-piperidine-3-carboxylic acid with trimethylsilylated diazomethane in a methanol/toluene mixture at room temperature has been reported to yield the desired product in good yields (e.g., 83.7%). Manufacturers often employ optimized versions of such protocols to ensure high purity and efficient production.

Global Supply and Sourcing Considerations

Methyl N-Boc-piperidine-3-carboxylate is available from numerous chemical suppliers worldwide. China, in particular, has a robust chemical manufacturing sector, offering a wide array of intermediates like this one at competitive prices. When looking to buy this product, it's essential for purchasing managers and research scientists to:

  • Verify Purity: Ensure the product meets the required purity standards (typically >97%) for its intended application.
  • Request Documentation: Obtain Certificates of Analysis (CoAs) and Material Safety Data Sheets (MSDS) to confirm quality and safety information.
  • Compare Suppliers: Evaluate different manufacturers based on price, delivery times, customer service, and reputation.
  • Obtain Samples: Requesting free samples allows for laboratory validation before committing to larger orders.

Working with reliable suppliers who can provide consistent quality and competitive pricing is crucial for the success of research and manufacturing operations. Understanding the synthesis and supply chain of Methyl N-Boc-piperidine-3-carboxylate empowers buyers to make informed decisions.

In summary, Methyl N-Boc-piperidine-3-carboxylate is a fundamental intermediate with broad applications. Its well-defined chemical properties and synthesis routes, coupled with a global supply network, make it an accessible and valuable component for advanced chemical projects.