The production of crucial pharmaceutical intermediates like 4-Chloro-7-Methylthieno[3,2-D]Pyrimidine (CAS: 175137-21-0) involves sophisticated chemical processes. Understanding these synthesis pathways is vital for ensuring product quality and for chemists seeking to optimize their own production or research. NINGBO INNO PHARMCHEM CO.,LTD. specializes in providing high-quality intermediates, including insights into their manufacturing.

A common method for the 4-Chloro-7-Methylthieno[3,2-D]Pyrimidine synthesis involves starting with a precursor like 7-methyl-3H-thieno[3,2-d]pyrimidin-4-one. This precursor is then reacted with a chlorinating agent, such as phosphorus oxychloride (POCl3), often under reflux conditions and with appropriate catalysts or solvents to achieve the desired chlorination at the 4-position of the thienopyrimidine ring. The process requires careful control of temperature, reaction time, and purification steps to yield the final product in high purity.

For those looking to procure this intermediate, the ability to buy 4-Chloro-7-Methylthieno[3,2-D]Pyrimidine online from reputable suppliers like NINGBO INNO PHARMCHEM CO.,LTD. simplifies the acquisition process. Access to detailed product information, including synthesis notes and purity specifications, is often available through platforms like Chemical Book or Echemi, which track the availability and details of compounds like 4-Chloro-7-Methylthieno[3,2-D]Pyrimidine CAS 175137-21-0.

The strategic importance of this intermediate in organic synthesis cannot be overstated. It acts as a pivotal point for introducing further functional groups, enabling the creation of a diverse range of biologically active molecules. NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to supporting advancements in chemistry by providing access to meticulously synthesized intermediates that drive innovation in drug discovery and beyond.