Palladium-Catalyzed Selective Synthesis of Naphthalenes and Indenones and Their Luminescent Properties
作者:Xiaopeng Chen、Jisong Jin、Ningning Wang、Ping Lu、Yanguang Wang
DOI:10.1002/ejoc.201101506
日期:2012.2
Selectivesynthesis of functionalized naphthalenes and indenones by palladium-catalyzed cyclization of o-haloacetophenones and terminal alkynes in the presence of a secondary amine is reported. Under a nitrogen atmosphere, the palladium-catalyzed reaction of o-haloacetophenones with terminal alkynes in the presence of wet secondary aminesgenerated 1-(dialkylamino)-3-aryl/alkylnaphthalenes. When the
Retracted: Direct synthesis of 1‐naphthylamines enabled by 6‐endo‐dig cyclization strategy using copper catalysis
作者:Peng Ma、Jianhui Wang、Guiyan Liu
DOI:10.1002/aoc.6679
日期:2022.6
which competitively evolve through 5-endo-dig cyclization pathways under metal catalysis. This unique performance unlocks a rapid access to a diverse 1-naphthylamines library that previously required longer synthetic routes. The synthetic potential of this method was further demonstrated by the gram-scale synthesis, and the mechanism study showed that the reaction experienced sequential halide exchange
A wastebiomass, sodium lignosulfonate, was treated with sodium 2-formylbenzenesulfonate, and the phenylaldehyde condensation product was then used as a robust supportingmaterial to immobilize a copper species. The so-obtained catalyst was characterized by many physicochemical methods including FTIR, EA, FSEM, FTEM, XPS, and TG. This catalyst exhibited excellent catalytic activity in the synthesis