Nasreen A. Cupric Nitrate Catalyzed Efficient and Facile Synthesis of 1,8-Dioxo-octahydroxanthene Derivatives. ajc [Internet]. 2013 Jul. 22 [cited 2024 Jul. 23];25(13):7535-8. Available from: https://asianpubs.org/index.php/ajchem/article/view/25_14_103