摘要
A highly efficient, low-cost Cu-based catalytic system has been developed, which utilizes a combination of charcoal-supported Cu 0 nanoparticles and pyridine as a catalyst for the aerobic oxidation homocoupling of terminal alkynes. This system facilitates the smooth aerobic oxidation of a series of terminal alkynes using oxygen as the oxidant, which results in the formation of corresponding 1,3-conjugated diynes, and water is the sole byproduct. Furthermore, the catalyst has demonstrated good reusability, maintaining its performance for up to five cycles. Graphical abstract
危险品化学品经营许可证（带存储）