Bromoiesol 硫酸盐 A ( 1 ) 和 B ( 2 ),新的多卤化芳基硫酸盐,是从Salileptolyngbya sp.中分离出来的。海洋蓝藻及其水解化合物溴化醇 A ( 3 ) 和 B ( 4 )。为了挑选出它们的结构候选者,我们使用了基于人工智能的结构预测工具小分子精确识别技术(SMART),并在溴化醇的单晶 X 射线衍射分析的基础上阐明了它们的结构(3和4)。此外,为了验证结构,溴化醇 A 硫酸盐 ( 1 ) 和溴化醇 A ( 3 )的全合成) 已实现。溴化醇家族,尤其是溴化醇(3和4),选择性地抑制了罗得西亚布氏锥虫(人类非洲昏睡病的病原体)的血流形式的生长。
carbonylation reaction for the synthesis of fluoren‐9‐ones from 2‐halogenated biphenyls using phenyl formate as a carbon monoxide surrogate was achieved. The combined use of cesium carbonate and o‐anisic acid resulted in a remarkable rate enhancement, where the reaction was complete within 3 min in some cases. Mechanistic studies indicated that the turnover‐limiting step of the reaction was the C−H bond‐cleaving
Organic light emitting compound and organic light emitting device including the same
申请人:SFC CO., LTD.
公开号:US10316013B2
公开(公告)日:2019-06-11
Disclosed is an organic light emitting compound represented by Formula I:
Also disclosed is an organic light emitting device including the organic light emitting compound. The organic light emitting device can be driven at a low voltage to achieve high power efficiency. In addition, the organic light emitting device has excellent luminescent properties, such as high luminance and high luminous efficiency. Due to these advantages, the organic light emitting device can be utilized as a display device or a lighting device.
Cobalt-Catalyzed Cross-Coupling Reactions of Heterocyclic Chlorides with Arylmagnesium Halides and of Polyfunctionalized Arylcopper Reagents with Aryl Bromides, Chlorides, Fluorides and Tosylates
A range of aromatic organocopper or organomagnesium compounds undergo smooth cross-coupling reactions with aryl bromides, chlorides, fluorides and tosylates, leading to polyfunctionalized aromatics or heterocycles in the presence of cobalt salts (5-7.5 mol%) as catalysts. Very mild reaction conditions are needed and, in the case of cross-coupling with organocopper compounds, Bu4NI (1 equiv) and 4-fluorostyrene (20 mol%) are essential as promoters for successful couplings.
Cascade Synthesis of Benzothieno[3,2-<i>b</i>]indoles under Oxidative Conditions Mediated by CuBr and <i>tert</i>-Butyl Hydroperoxide
作者:Xiaoyuan Zhao、Qiao Li、Jun Xu、Donghua Wang、Daisy Zhang-Negrerie、Yunfei Du
DOI:10.1021/acs.orglett.8b02614
日期:2018.9.21
A series of biologically relevant compounds of benzothieno[3,2-b]indole derivatives were conveniently synthesized from reactions of N-protected 2-((2-bromophenyl)ethynyl)anilines and potassium ethylxanthate, mediated by cuprous bromide/tert-butyl hydroperoxide. The method features the construction of the pyrrole and thiophene rings in a cascade sequence with the pyrrole ring being formed prior to the
由溴化亚铜/叔丁基过氧化氢介导的N-保护的2-((2-溴苯基)乙炔基)苯胺与乙基黄原酸钾的反应可方便地合成一系列苯并噻吩并[3,2- b ]吲哚衍生物的生物学相关化合物。该方法的特征在于以级联顺序构造吡咯和噻吩环,其中吡咯环通过可能的反应性Cu(III)-吡咯中间体在噻吩环之前形成。