Visible-Light-Promoted, Catalyst-Free Gomberg–Bachmann Reaction: Synthesis of Biaryls
作者:Juyoung Lee、Boseok Hong、Anna Lee
DOI:10.1021/acs.joc.9b00557
日期:2019.7.19
Biaryls were synthesized via a novel visible-light-promoted Gomberg–Bachmann reaction that does not require a photosensitizer or any metal reagents. The formation of an electron donor–acceptor complex between aryl diazonium salts and pyridine allows, under visible-light irradiation, the synthesis of biaryls in moderate-to-high yields.
Three-Component Coupling Based on Flash Chemistry. Carbolithiation of Benzyne with Functionalized Aryllithiums Followed by Reactions with Electrophiles
作者:Aiichiro Nagaki、Daisuke Ichinari、Jun-ichi Yoshida
DOI:10.1021/ja5071762
日期:2014.9.3
carbolithiation of benzyne with the aryllithium took place spontaneously. The resulting functionalized biaryllithium was reacted with an electrophile in the subsequent reactor to give the corresponding three-component coupling product. The precise optimization of reaction conditions using the temperature-residence time mapping is responsible for the success of the present transformation. The present method
建立了一种基于闪速化学的苯三组分偶联流动微反应器方法。由 1-溴-2-碘苯产生的邻溴苯基锂和由相应芳基卤化物产生的官能化芳基锂在 -70 °C 下混合。在随后的反应器中,邻溴苯基锂在 -30°C 下分解生成苄基而不影响官能化的芳基锂,并且苄基与芳基锂的碳锂化反应自发发生。所得官能化联芳基锂在随后的反应器中与亲电试剂反应,得到相应的三组分偶联产物。使用温度-停留时间映射对反应条件进行精确优化是目前转化成功的原因。
Inhibitors of akt (protein kinase b)
申请人:Al-Awar Salim Rima
公开号:US20070043040A1
公开(公告)日:2007-02-22
The present invention relates to compounds Formula (I): as inhibitors of AKT activity, which are useful for the treatment of susceptible neoplasms and viral infections.
本发明涉及化合物式(I):作为AKT活性抑制剂,可用于治疗易感性肿瘤和病毒感染。
Liquid crystal displays and liquid crystalline media with homeotropic alignment
申请人:MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
公开号:US10273409B2
公开(公告)日:2019-04-30
The present invention relates to liquid-crystalline media (LC media) having negative or positive dielectric anisotropy comprising self-aligning mesogens (SAMs) which effect homeotropic (vertical) alignment of the LC media at a surface or the cell walls of a liquid-crystal display (LC display). The invention therefore also encompasses LC displays having homeotropic alignment of the liquid-crystalline medium (LC medium) without conventional imide alignment layers. The LC media may be supplemented by a polymerizable or polymerized component, which serves for stabilization of the alignment, for adjustment of the tilt angle and/or as passivation layer.
Liquid crystalline media having homeotropic alignment
申请人:MERCK PATENT GMBH
公开号:US10294426B2
公开(公告)日:2019-05-21
The present invention relates to liquid-crystalline media (LC media) having negative or positive dielectric anisotropy, comprising a low-molecular-weight component and a polymerizable component. The polymerizable component comprises self-aligning, polymerizable mesogens (polymerizable self-alignment additives) which effect homeotropic (vertical) alignment of the LC media at a surface or the cell walls of a liquid-crystal display (LC display). The invention therefore also encompasses LC displays having homeotropic alignment of the LC medium without alignment layers. The invention discloses novel structures for polymerizable self-alignment additives which have a certain position of the functional groups.