A New Approach to Polycyclic Azonia Cations by Ring-Closing Metathesis
作者:Ana Núñez、Ana M. Cuadro、Julio Alvarez-Builla、Juan J. Vaquero
DOI:10.1021/ol070773t
日期:2007.8.1
metathesis (RCM) reaction of N-vinyl-alpha-(2-styryl)azinium salts, using the Hoveyda-Grubbs catalyst, leads to different tricyclic and tetracyclic azonia cations with moderate to good yields. This is the first time that a highly electron-deficient alkene such as an N-vinylpyridinium has been involved in an RCM process.
Ring-Closing Metathesis Approach to Heteroaromatic Cations: Synthesis of Benzo[a]quinolizinium Salts
作者:Ana Nuñez、Beatriz Abarca、Ana M. Cuadro、Julio Alvarez-Builla、Juan J. Vaquero
DOI:10.1002/ejoc.201001373
日期:2011.3
Benzo[α]quinoliziniumsalts have been synthesized through ring-closing metathesis reactions of 1-butenyl-2-vinylisoquinolinium, 2-butenyl-1-vinylisoquinolinium and 2-styryl-1-vinylpyridinium salts in the presence of Grubbs and Hoveyda-Grubbs catalysts. The results show that the last approach is the most efficient for the preparation of this heteroaromatic tricyclic system and several previously unknown
new formal insertion strategy via combination of reductive elimination and oxidative addition sequence was reported, in which the transient N-acyliminium ions formed via hydrocarbonylation function as key intermediates. This strategy has enabled a novel palladium-catalyzed hydrocarbonylative cyclization of azaarene-tethered alkenes or dienes via sequential insertion of a C═C bond, CO, and a C═N bond into
[EN] ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME<br/>[FR] COMPOSÉS ÉLECTROLUMINESCENTS ORGANIQUES ET DISPOSITIF ÉLECTROLUMINESCENT ORGANIQUE LES COMPRENANT
申请人:ROHM & HAAS ELECT MATERIALS KOREA LTD
公开号:WO2017026643A1
公开(公告)日:2017-02-16
The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound of the present disclosure is effective in preparing an organic electroluminescent device having a remarkably improved lifespan.
[EN] ORGANIC ELECTROLUMINESCENT COMPOUND, ORGANIC ELECTROLUMINESCENT MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME<br/>[FR] COMPOSÉ ORGANIQUE ÉLECTROLUMINESCENT, MATÉRIAU ORGANIQUE ÉLECTROLUMINESCENT ET DISPOSITIF ORGANIQUE ÉLECTROLUMINESCENT LES COMPRENANT
申请人:ROHM & HAAS ELECT MATERIALS KOREA LTD
公开号:WO2017200210A1
公开(公告)日:2017-11-23
The present disclosure relates to an organic electroluminescent compound, an organic electroluminescent material, and an organic electroluminescent device comprising the same. The organic electroluminescent compound of the present disclosure can provide an organic electroluminescent device having improved lifespan properties, compared to the organic electroluminescent device comprising a conventional organic electroluminescent compound.