[EN] 4 - [CYCLOALKYLOXY (HETERO) ARYLAMINO] THIENO [2, 3 - D] PYRIMIDINES HAVING MNKL/ MNK2 INHIBITING ACTIVITY FOR PHARMACEUTICAL COMPOSITIONS [FR] 4-[CYCLOALKYLOXY(HÉTÉRO)ARYLAMINO]THIÉNO[2,3-D]PYRIMIDINES AYANT UNE ACTIVITÉ D'INHIBITION DE MNK1/MNK2 POUR DES COMPOSITIONS PHARMACEUTIQUES
Hydrogenolysis–hydrogenation of aryl ethers: selectivity pattern
作者:Bhupesh S. Samant、George W. Kabalka
DOI:10.1039/c2cc34454h
日期:——
The selectivity pattern of nickel-catalyzed hydrogenolysisâhydrogenation of aryl ethers has been studied in the micellar media. The micellar conditions selectively formed arenes and alcohols with enhanced yields.
Aluminum Metal–Organic Framework-Ligated Single-Site Nickel(II)-Hydride for Heterogeneous Chemoselective Catalysis
作者:Neha Antil、Ajay Kumar、Naved Akhtar、Rajashree Newar、Wahida Begum、Ashutosh Dwivedi、Kuntal Manna
DOI:10.1021/acscatal.0c04379
日期:2021.4.2
and heterogeneous earth-abundant metal catalysts is essential for environmentally friendly chemical synthesis. We report a highly efficient, chemoselective, and reusable single-site nickel(II) hydride catalyst based on robust and porous aluminum metal–organic frameworks (MOFs) (DUT-5) for hydrogenation of nitro and nitrile compounds to the corresponding amines and hydrogenolysis of arylethers under
化学选择性的和非均质的富含地球的金属催化剂的开发对于环境友好的化学合成至关重要。我们报告了一种高效,化学选择性和可重复使用的单中心氢化镍(II)氢化物催化剂,该催化剂基于坚固且多孔的铝金属有机骨架(MOFs)(DUT-5),用于将硝基和腈化合物加氢成相应的胺并进行氢解温和条件下制备芳基醚。镍-氢化物催化剂的制备是通过的氢氧化铝次级结构单元的金属化的Al具有(μ的式DUT-5的(事业部)2 -OH)(BPDC)(BPDC = 4,4'-联苯双酯)与NIBR 2然后与NaEt 3反应BH。DUT-5-NiH具有广泛的底物范围,在1 bar H 2下氢化芳族和脂肪族硝基和腈化合物时,具有出色的官能团耐受性至少可以回收再利用10次。通过改变腈氢化的反应条件,还选择性地提供了对称或不对称的仲胺。实验和计算研究表明,在营业额限制步骤中,镍与镍的可逆腈配位是可逆的,然后将1,2-的配位腈插入氢化镍中。此
Catalytic hydrogenation of aromatic rings catalyzed by Pd/NiO
作者:Yanan Wang、Xinjiang Cui、Youquan Deng、Feng Shi
DOI:10.1039/c3ra45600e
日期:——
A simple and efficient heterogeneous palladium catalyst was prepared for aromaticringhydrogenation. The catalyst was prepared by a reduction-deposition method and exhibited high activity and selectivity for the hydrogenation of a variety of substituted aromatic compounds to the corresponding cyclohexane and cyclohexanol derivatives with up to 99% yields. The catalyst was characterized by BET, TEM
CYCLOALKYL CONTAINING THIENOPYRIMIDINES FOR PHARMACEUTICAL COMPOSITIONS
申请人:LEHMANN-LINTZ Thorsten
公开号:US20110217311A1
公开(公告)日:2011-09-08
The present invention relates to novel thienopyrimidine compounds of general formula
pharmaceutical compositions comprising these compounds and their therapeutic use for the prophylaxis and/or treatment of diseases which can be influenced by the inhibition of the kinase activity of Mnk1 and/or Mnk2 (Mnk2
a
or Mnk2
b
) and/or variants thereof.
Elucidating the reactivity of methoxyphenol positional isomers towards hydrogen-transfer reactions by ATR-IR spectroscopy of the liquid–solid interface of RANEY® Ni
作者:Ilton Barros Daltro de Castro、Inês Graça、Laura Rodríguez-García、Marco Kennema、Roberto Rinaldi、Fabian Meemken
DOI:10.1039/c8cy00491a
日期:——
transfer reactions (e.g. in catalytic upstream biorefining or lignin-first biorefining) has brought a renewed interest in the fundamental understanding of hydrogen-transfer processes in the defunctionalisation of lignin-derived phenolics. In this report, we address fundamental questions underlining the distinct reactivity patterns of positional isomers of guaiacol towards H-transfer reactions in the