A novel electromagnetic mill promoted mechanochemical solid-state Suzuki–Miyaura cross-coupling reaction using ultra-low catalyst loading
作者:Xin Li、Yunxia Liu、Lizhi Zhang、Yunhui Dong、Qing Liu、Daopeng Zhang、Lei Chen、Zengdian Zhao、Hui Liu
DOI:10.1039/d2gc01427k
日期:——
The Nobel-prize-winning Suzuki–Miyauracross-coupling (SMC) is a practical and attractive strategy for the construction of C–C bonds in both academic and industrial settings. However, the development of solid-state SMC reactions remains extremely scarce. Herein, we report an electromagnetic mill (EMM) promoted solid-state SMC reactionusing ultra-low palladium loading (0.05 mol%) without any liquid
Organic electroluminescent display device and chemical compounds for liquid crystals
申请人:Kido Junji
公开号:US20070164257A1
公开(公告)日:2007-07-19
The new organic electroluminescent display device has a carrier-transporting layer and/or an organic luminous layer composed of a nematic liquid crystal or a liquid crystal dispersing a carrier-transporting low-molecule therein. When the organic luminous layer is to be bestowed with faculty as a liquid crystal, it is made of a nematic liquid crystal. Both the carrier-transporting layer and the organic luminous layer may be bestowed with faculty as a liquid crystal. Since the liquid crystal is incorporated in the carrier-transporting layer and/or the organic luminous layer, the display device can be driven as a liquid crystal display device in a dark place by charging with a voltage lower than a light emission initiating potential. Of course, it is driven as an electroluminescent display device when it is charged with a voltage higher than the light emission initiating potential. Use of an electroluminescent liquid crystal as a organic luminous layer enables omission of a carrier-transporting layer.
PYRENE DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE DEVICE MAKING USE OF THE SAME
申请人:Ito Mitsunori
公开号:US20090058270A1
公开(公告)日:2009-03-05
Provided is an organic electroluminescence device including one or two or more organic thin-film layers having at least a light emitting layer interposed between a negative electrode and a positive electrode, in which the light emitting layer contains a pyrene derivative of a specified structure and an amine compound of a specified structure. The organic electroluminescence device excels in heat resistance, ensures long life and high luminous efficiency, and is capable of emitting blue, green and red lights.
Organic Electroluminescent Display Device and Chemical Compounds for Liquid Crystals
申请人:Kido Junji
公开号:US20090058277A1
公开(公告)日:2009-03-05
The new organic electroluminescent display device has a carrier-transporting layer and/or an organic luminous layer composed of a nematic liquid crystal or a liquid crystal dispersing a carrier-transporting low-molecule therein. When the organic luminous layer is to be bestowed with faculty as a liquid crystal, it is made of a nematic liquid crystal. Both the carrier-transporting layer and the organic luminous layer may be bestowed with faculty as a liquid crystal. Since the liquid crystal is incorporated in the carrier-transporting layer and/or the organic luminous layer, the display device can be driven as a liquid crystal display device in a dark place by charging with a voltage lower than a light emission initiating potential. Of course, it is driven as an electroluminescent display device when it is charged with a voltage higher than the light emission initiating potential. Use of an electroluminescent liquid crystal as a organic luminous layer enables omission of a carrier-transporting layer.