great importance of N-substituted benzimidazoles in pharmaceutics, here N-aryl benzimidazoline produced in situ was used as a H2 donor, which was converted to C–N axially chiral N-aryl benzimidazole by CPA-catalyzed enantioselective transfer hydrogenation of the in situ produced imine.
Benzimidazole derivatives, their preparation and use
申请人:NeuroSearch A/S
公开号:US05200422A1
公开(公告)日:1993-04-06
A compound having the formula ##STR1## wherein R.sup.1 is hydrogen, NH.sub.2 or C.sub.1-6 -alkyl which may be branched; X is O, S, NCN; Y is O, S; R.sup.4, R.sup.5, R.sup.6 and R.sup.7 independently of each other are hydrogen, halogen, CF.sub.3, NO.sub.2, NH.sub.2, OH, C.sub.1-6 -alkoxy, C(.dbd.O)-phenyl or SO.sub.2 NR.sup.I R.sup.II wherein R.sup.I and R.sup.II independently are hydrogen or C.sub.1-6 -alkyl; R.sup.11 is hydrogen, halogen, NO.sub.2 or SO.sub.2 NR'R" wherein R' and R" independently are hydrogen or C.sub.1-6 -alkyl; R.sup.13 is hydrogen, halogen, phenyl, CF.sub.3, NO.sub.2 ; R.sup.12 is hydrogen or together with R.sup.13 forms a C.sub.4-7 -carbocyclic ring which may be aromatic or partially saturated; R.sup.14 is hydrogen or together with R.sup.13 forms a C.sub.4-7 -carbocyclic ring which may be aromatic or partially saturated; pharmaceutical compositions thereof, and a method of treating a disease in a mammal, including a human, responsive to opening of potassium channels, which comprises administering to a mammal in need thereof an effective amount of a compound as first above indicated, are disclosed.
Verfahren zur Herstellung von Aminodiphenylamin-Verbindungen
申请人:CIBA-GEIGY AG
公开号:EP0701993A2
公开(公告)日:1996-03-20
Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Herstellung von Verbindungen der Formel
worin R₁ Wasserstoff, C₁-C₄-Alkyl oder Sulfo und R₂ Wasserstoff oder C₁-C₄-Alkyl bedeutet,
dadurch gekennzeichnet, dass man eine Verbindung der Formel
worin Hal Halogen bedeutet und R₁ die oben angegebenen Bedeutungen hat, mit einer Verbindung der Formel
worin Y eine verseifbare Gruppe ist und R₂ die oben angegebenen Bedeutungen hat, zur Verbindung der Formel
worin R₁, R₂ und Y die oben angegebenen Bedeutungen haben, umsetzt und die Verbindung der Formel (4) durch Verseifung zur Verbindung der Formel (1) umsetzt.
Die Verbindungen der Formel (1) eignen sich zur Herstellung von Farbstoffen.
本发明的目的是一种制备式如下化合物的工艺
其中 R₁ 是氢、C₁-C₄-烷基或磺基,R₂ 是氢或 C₁-C₄-烷基、
式中的化合物
其中 Hal 为卤素,R₁ 具有上述含义,将该化合物与式
式中 Y 为可皂化基团,R₂具有上述含义的化合物反应,得到式中化合物
其中 R₁、R₂ 和 Y 具有上述含义,通过皂化作用将式 (4) 化合物转化为式 (1) 化合物。
式(1)化合物适用于生产着色剂。
COMPOUND, ORGANIC OPTOELECTRONIC ELEMENT COMPRISING SAME, AND DISPLAY DEVICE
申请人:Samsung SDI Co., Ltd.
公开号:EP3023425A1
公开(公告)日:2016-05-25
A compound represented by Chemical Formula 1, an organic optoelectronic device including the same and a display device including the organic optoelectronic device are disclosed. A structure of the compound represented by Chemical Formula 1 is described in the specification. The compound provides an organic optoelectronic device having high efficiency, long life-span and the like characteristics.