Provided is an organic electroluminescent element having optimal light emission characteristics. The above problem is solved by an organic electroluminescent element having a light emitting layer containing a compound of formula (1) or a multimer compound having a plurality of structures of formula (1), and a compound of formula (2A) or (2B)
in formula (1), ring A, ring B, and ring C each represent an aryl ring or the like, X
1
and X
2
each represent >O or >N—R, and the R represents an aryl or the like, and in formula (2A) or (2B), X represents an aryl or the like, and Z represents a single bond, a divalent group, or the like.
Photocatalytic (Het)arylation of C(sp<sup>3</sup>)–H Bonds with Carbon Nitride
作者:Saikat Das、Kathiravan Murugesan、Gonzalo J. Villegas Rodríguez、Jaspreet Kaur、Joshua P. Barham、Aleksandr Savateev、Markus Antonietti、Burkhard König
DOI:10.1021/acscatal.0c05694
日期:2021.2.5
organic pollutants. However, their utilization in synthetic photocatalysis, especially in the direct functionalization of C(sp3)–H bonds, remains underexplored. Herein, we report mesoporous graphitic carbon nitride (mpg-CN) as a heterogeneous organic semiconductor photocatalyst for directarylation of C(sp3)–H bonds in combination with nickel catalysis. Our protocol has a broad synthetic scope (>70 examples
Transition-metal-free, oxidative C(sp<sup>3</sup>)–H arylation of amides with zeolite catalysts
作者:Jannick Vercammen、Besir Krasniqi、Dirk De Vos
DOI:10.1039/d3cy00880k
日期:——
Zeolite catalysts in combination with tert-butylperoxy ethylhexyl carbonate (TBEC) as oxidant promote oxidative coupling reactions with amides.
沸石催化剂与作为氧化剂的叔丁基过氧化乙基己基碳酸酯(TBEC)相结合,可促进与酰胺的氧化偶联反应。
US6153119A
申请人:——
公开号:US6153119A
公开(公告)日:2000-11-28
[EN] METHOD AND PRODUCT FOR REDUCING TAR AND NICOTINE IN CIGARETTES<br/>[FR] PROCEDE ET PRODUIT POUR REDUIRE LA TENEUR DES CIGARETTES EN NICOTINE ET EN GOUDRON
申请人:SUNG, Michael, T.
公开号:WO1998049911A1
公开(公告)日:1998-11-12
(EN) This invention is a process and product which uses the process for reducing tar and nicotine in cigarettes, whereby a novel emulsified complex of Sterotex/permanganate is incorporated into a cigarette (1). The complex displays a synergistic (6) reaction having a dose response relationship permitting linear adjustment to reduce more than 85 % of the tar and nicotine in the mainstream smoke of a cigarette (4). Chemical analysis of the smoke condensate demonstrates the oxidation of nicotine to nicotinic acid, a B6 vitamin.(FR) La présente invention concerne un procédé, ainsi qu'un produit utilisant ce dernier, qui sont destinés à réduire la teneur des cigarettes en nicotine et en goudron; selon ce procédé, on incorpore à la cigarette (1) un nouveau complexe émulsifié de Sterotex/permanganate. Le complexe manifeste une réaction synergique (6) dont le rapport dose-réaction permet une adaptation linéaire, destinée à réduire de plus de 85 % la teneur en nicotine et en goudron du courant de fumée central d'une cigarette (4). L'analyse chimique du condensat de fumée montre une oxydation de la nicotine en acide nicotinique qui appartient au groupe des vitamines B6.