Heterogeneous Ru/TiO<sub>2</sub> for hydroaminomethylation of olefins: multicomponent synthesis of amines
作者:Jinghua An、Zhuyan Gao、Yehong Wang、Zhixin Zhang、Jian Zhang、Lu Li、Bo Tang、Feng Wang
DOI:10.1039/d1gc00113b
日期:——
Synthesizing amines via the hydroaminomethylation (HAM) reaction of olefins, a multicomponent reaction, has been regarded as one of the most attractive methods compared with the traditional methods considering the atom economy and environmental friendliness. However, the use of homogeneous catalysts, complex ligands containing diphosphine or nitrogen, and base or acid additives has severely hampered
合成胺通过烯烃,多组分反应的hydroaminomethylation(HAM)反应,被认为是与考虑到原子经济性和环境友好性的传统方法相比,最有吸引力的方法之一。然而,均相催化剂,含有二膦或氮的复杂配体以及碱或酸添加剂的使用严重地阻碍了这些方法的使用。在本文中,开发了没有任何添加剂的有效的异质Ru / TiO 2催化的烯烃HAM反应。可以从包括芳族和脂族烯烃在内的烯烃中成功地获得包括仲胺和叔胺在内的各种胺。系统研究表明,Ruδ +的电子密度较低Ru / TiO 2的酸位较高,导致烯烃的高HAM反应活性。最重要的是,硝基苯衍生物也可以优良的产率通过Ru / TiO 2转化为相应的产物。
ORGANIC ELECTROLUMINESCENT DEVICE
申请人:Pan Junyou
公开号:US20130296288A1
公开(公告)日:2013-11-07
The present invention relates to a salt in which at least one cation and at least one anion is in each case an emitter compound or a dye compound, characterised in that at least one of the emitter compounds is a fluorescent emitter compound. In addition, the present invention also relates to a process for the preparation of the salt according to the invention, to the use of the salt in an electronic device, and to a formulation and an electronic device which comprises the salt.
Reductive N-Alkylation of Nitro Compounds to <i>N</i>-Alkyl and <i>N</i>,<i>N</i>-Dialkyl Amines with Glycerol as the Hydrogen Source
作者:Xinjiang Cui、Youquan Deng、Feng Shi
DOI:10.1021/cs400049b
日期:2013.5.3
As the sustainable and promising hydrogen source, here, glycerol was directly used as the hydrogen source for the reductive amination of alcohol using nitrobenzene as the starting material. The amination of alcohols, especially aliphatic alcohols with different structures, was realized, and mono- or disubstituted amines were synthesized with excellent yields. The reaction mechanism was also explored