Synthesis of Polysubstituted Isoquinolines through Cross-Coupling Reactions with α-Alkoxytosylhydrazones
作者:Lucía Florentino、Fernando Aznar、Carlos Valdés
DOI:10.1021/ol300810p
日期:2012.5.4
A Pd-catalyzed cross-couplingreaction of α-alkoxytosylhydrazones with sulfonates derived from salicyl aldehydes gives rise to protected 1,5-dicarbonyl compounds. Treatment with ammonium hydroxide readily transforms these alkenes into isoquinolines with diverse substitution patterns at positions 3 and 4. In a similar way, the employment of o-cyanononaflates in the coupling reaction, followed by treatment
A new approach for the functionalization of C-4 of isoquinolines is reported. The method utilizes palladium catalyzed, hetero-atom guided (or electrophilic metalation) direct arylation via regioselective CâH functionalization of dihydroisoquinolines.
Easy Access to Isoquinolines and Tetrahydroquinolines from Ketoximes and Alkynes via Rhodium-Catalyzed C−H Bond Activation
作者:Kanniyappan Parthasarathy、Chien-Hong Cheng
DOI:10.1021/jo902084j
日期:2009.12.18
herein is a convenient and highly regioselective synthesis of substituted isoquinoline derivatives from various aromatic ketoximes and alkynes via a one-pot, rhodium-catalyzed C−H bondactivation. In addition, tetrahydroquinoline derivatives are formed in good yields from 2-arylidene-1-cyclohexanone oximes possessing an exocyclic double bond and from tetrahydroxanthone oximes. A possible mechanism is
Organic compound and organic electroluminescent element comprising same
申请人:DOOSAN CORPORATION
公开号:US10008675B2
公开(公告)日:2018-06-26
The present disclosure relates to a novel compound and an organic electroluminescent element including the same, and the compound according to the present disclosure is used for an organic material layer of the organic electroluminescent element, thereby improving the light emitting efficiency, driving voltage, lifetime, and the like of the organic electroluminescent element.
An organic light-emitting device including a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode and including an emission layer. The organic layer includes a first material represented by Formula 1 and a second material represented by Formula 2:
The resulting organic light-emitting device may have high efficiency and a long lifespan.