Organocatalyzed benzannulation for the construction of diverse anthraquinones and tetracenediones
作者:Krishna Bahadur Somai Magar、Likai Xia、Yong Rok Lee
DOI:10.1039/c5cc00623f
日期:——
An efficient one-pot synthesis of anthraquinones and tetracenediones was achieved by l-proline catalyzed benzannulation of commercially available 1,4-naphthoquinones or 1,4-anthracenedione with a variety of α,β-unsaturated aldehydes in good to excellent yield.
Linear annelation of tricyclic quinones by site selective reaction with dienes.
作者:Ronald N. Warrener、David A.C. Evans、Richard A. Russell
DOI:10.1016/s0040-4039(01)81532-x
日期:——
DielsAlder reactions involving tricyclic quinones of type (3) proceed at the internal pi-bond unless the terminal pi-bond is substituted with an activating substituent, e.g. So2Ar. Thermal isomerisation of the internal adducts leads to the formation of linear but aromatised products some of which can be made to retain their bridge.
[EN] DEEP RED LIGHT THERMALLY ACTIVATED DELAYED FLUORESCENCE MATERIAL, PREPARATION METHOD THEREFOR, AND ELECTROLUMINESCENT DEVICE<br/>[FR] MATÉRIAU À FLUORESCENCE RETARDÉE ACTIVÉ THERMIQUEMENT ÉMETTANT DE LA LUMIÈRE ROUGE FONCÉ, PROCÉDÉ DE PRÉPARATION CORRESPONDANT, ET DISPOSITIF ÉLECTROLUMINESCENT<br/>[ZH] 深红光热活化延迟荧光材料及其制备方法和电致发光器件
申请人:WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECH CO LTD