Catalytic Decarboxylative Cross‐Coupling of Aryl Chlorides and Benzoates without Activating
<i>ortho</i>
Substituents
作者:Jie Tang、Agostino Biafora、Lukas J. Goossen
DOI:10.1002/anie.201505843
日期:2015.10.26
substrates was overcome by holistic optimization of a bimetallic Cu/Pd catalyst system. The combination of a CuI/Me4phen decarboxylation catalyst and a [(MeCN)4Pd](OTf)2/XPhos cross‐coupling catalyst enables the synthesis of biaryls from inexpensive aryl chlorides and potassium benzoates regardless of their substitution pattern.
通过整体优化双金属Cu / Pd催化剂体系,克服了脱羧交叉偶联反应对邻位取代或杂环羧酸酯底物的限制。CuI / Me 4 phen脱羧催化剂和[(MeCN)4 Pd](OTf)2 / XPhos交叉偶联催化剂的组合,无论其取代方式如何,均能从廉价的芳基氯化物和苯甲酸钾合成联芳基。
Platinum-catalysed diborylation of arynes: synthesis and reaction of 1,2-diborylarenes
Arynes are found to be facilely inserted into bis(pinacolato)diboron by using a platinum–isocyanide catalyst, affording diverse 1,2-diborylarenes, which can be converted into o-terphenyls via Suzuki–Miyaura coupling reaction.
Integrating Reactors and Catalysts through Three‐Dimensional Printing: Efficiency and Reusability of an Impregnated Palladium on Silica Monolith in Sonogashira and Suzuki Reactions
作者:Antonio S. Díaz‐Marta、Susana Yañez、Eliana Lasorsa、Patricia Pacheco、Carmen R. Tubío、José Rivas、Yolanda Piñeiro、Manuel A. Gonzalez Gómez、Manuel Amorín、Francisco Guitián、Alberto Coelho
DOI:10.1002/cctc.201902143
日期:2020.3.19
sintering and subsequent palladium deposition through the wet impregnation method. The catalytic efficiency in Sonogashira or Suzukireactions as well as the recyclability of the entire system – catalyst+reactor – were studied. The strong electrostatic adsorption (SEA) of the palladium on sintered silica and the reduced mechanical stress produced by the convenient adjustment of the catalyst into the polypropylene
CONDENSED CYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
申请人:Samsung Electronics Co., Ltd.
公开号:US20170025620A1
公开(公告)日:2017-01-26
A condensed cyclic compound represented by Formula 1:
wherein, in Formula 1, X
1
to X
8
, X
11
to X
18
, Y
11
, and Z
11
to Z
14
are the same as described in the specification.
Effect of <i>ortho</i>-biphenyl substitution on the excited state dynamics of a multi-carbazole TADF molecule
作者:Seung-Je Woo、Yeon-Hee Ha、Yun-Hi Kim、Jang-Joo Kim
DOI:10.1039/d0tc02627a
日期:——
investigate the effect of the ortho-biphenyl substitution on the excited-state dynamics and photophysical properties of the TADF molecule, we performed time dependent density functional theory (TD-DFT) calculations of 4mCzBN-BP and two multi-carbazole TADF molecules with similar molecularstructures. A local excited triplet state (3LE) with an energy (2.81 eV) close to the lowest singlet charge-transfer state