N-Heterocyclic carbene–palladium(<scp>ii</scp>)–1-methylimidazole complex-catalyzed Suzuki–Miyaura coupling of benzyl carbamates with arylboronic acids
作者:Xiao-Xia Wang、Mao-Jun Luo、Jian-Mei Lu
DOI:10.1039/c5ob01782c
日期:——
The first example of palladium-catalyzed coupling of benzyl carbamates with arylboronic acids is reported.
第一个关于钯催化苄基氨基甲酸酯与芳基硼酸的偶联反应的例子被报道。
N-heterocyclic carbene–palladium(<scp>ii</scp>)-1-methylimidazole complex-catalyzed Suzuki–Miyaura coupling of benzyl sulfonates with arylboronic acids
作者:Xiao-Xia Wang、Bin-Bin Xu、Wen-Ting Song、Kai-Xin Sun、Jian-Mei Lu
DOI:10.1039/c4ob02675f
日期:——
The first example of palladium-catalyzed coupling between benzyl sulfonates and arylboronic acids was reported.
第一个钯催化的苯甲基磺酸酯和芳基硼酸之间的偶联反应的例子被报道了。
Benzylation of arenes with benzyl ethers promoted by the in situ prepared superacid BF3–H2O
作者:Yu Li、Yan Xiong、Xueming Li、Xuege Ling、Ruofeng Huang、Xiaohui Zhang、Jianchun Yang
DOI:10.1039/c4gc00005f
日期:——
An efficient and environmentally friendly benzylation of arenes with benzyl ethers as benzyl donors using BF3âEt2O to generate in situ the superacid BF3âH2O as an efficient promotor has been described. A wide variety of functional groups have been investigated and found to be compatible to give the desired diarylmethanes in yields of up to 99%. The crucial role of the moisture content in this transformation has been demonstrated by detailed investigations.
Carbon-centered radical capture at nickel(II) complexes: Spectroscopic evidence, rates, and selectivity
作者:Qiao Lin、Ethan H. Spielvogel、Tianning Diao
DOI:10.1016/j.chempr.2023.02.010
日期:2023.3
The capture of carbon-centered radicals at a nickel(II) center is commonly featured in recent cross-coupling and metallaphotoredox catalytic reactions. Despite its widespread application in catalysis, this fundamental step lacks experimental characterization. This report portrays radical capture at catalytically relevant nickel(II) centers from several aspects, including the structure-activity relationships
在镍 (II) 中心捕获以碳为中心的自由基是最近的交叉偶联和金属光氧化还原催化反应的常见特征。尽管它在催化中得到广泛应用,但这一基本步骤缺乏实验表征。本报告从几个方面描述了催化相关镍 (II) 中心的自由基捕获,包括配体的构效关系、机制、动力学和立体选择性。光谱数据为镍 (III) 中间体的形成提供了证据。镍-芳基和镍-烷基配合物之间显着不同的反应性意味着 C(sp 3 )–C(sp 3 ) 和 C(sp 2 )–C(sp 3)债券形成。动力学数据分别以 10 7 M -1 s -1和 10 6 M -1 s -1的规模对一级和二级自由基的捕获率进行基准测试。总的来说,活化能高于先前的计算估计。最后,使用定义明确的手性镍络合物的化学计量实验表明,自由基捕获步骤可以赋予非对映选择性和对映选择性以及强烈的配体效应。
MEDICAMENT FOR LIVER REGENERATION AND FOR TREATMENT OF LIVER FAILURE
申请人:Helmholtz-Zentrum für Infektionsforschung GmbH
公开号:EP3192870A1
公开(公告)日:2017-07-19
The present invention relates to cultivated hepatocyte for blood purification, wherein the hepatocyte contains a compound which is an inhibitor of the activity of MKK4, MKK4 being encoded by SEQ ID NO: 1204.
本发明涉及用于血液净化的培养肝细胞,其中肝细胞含有一种化合物,该化合物是 MKK4 活性的抑制剂,MKK4 由 SEQ ID NO: 1204 编码。