title: Palladium catalyzed synthesis of highly substituted naphthalenes via direct ring construction from amides with alkynes.
abstract: The direct ring construction of amides with alkynes catalyzed by palladium acetate with cheap oxidant under an air atmosphere has been realized. A variety of novel highly substituted naphthalenes 3a-3l have been prepared chemo- and regioselectively in 55-97% yields under mild conditions. Product 3j emits intense blue luminescence peaked at 435 nm with a good blue purity.
authors: Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Department of Chemistry, Zhengzhou University, 75 Da Xue Road, Zhengzhou 450052, China.
authors: Junliang
authors: J
authors: Wu
authors: Xiuling
authors: X
authors: Cui
authors: Xia
authors: X
authors: Mi
authors: Ying
authors: Y
authors: Li
authors: Yangjie
authors: Y
authors: Wu