用于工业相关氢化反应的高效和选择性纳米结构催化剂的开发继续是化学研究的实际目标。尤其是腈和硝基芳烃的氢化对于伯胺的生产非常重要,伯胺构成了高级化学品,生命科学分子和材料的重要原料和关键中间体。在这里,我们报道了石墨烯壳包封的Co 3 O 4的制备-和钴-纳米颗粒通过碳上对苯二甲酸钴对苯二甲酸MOF的模板合成和随后的热解而负载在碳上。所得的纳米颗粒产生稳定且可重复使用的催化剂,用于官能化和结构多样的芳族,杂环和脂肪族腈以及硝基化合物选择性氢化为伯胺(> 65实例)。这种新型的基于非贵金属的氢化方案的合成和实用性通过将数种反应的规模扩大到数克规模并回收催化剂得到了证明。
MOF-derived cobalt nanoparticles catalyze a general synthesis of amines
作者:Rajenahally V. Jagadeesh、Kathiravan Murugesan、Ahmad S. Alshammari、Helfried Neumann、Marga-Martina Pohl、Jörg Radnik、Matthias Beller
DOI:10.1126/science.aan6245
日期:2017.10.20
preparation entailed template assembly of cobalt-diamine-dicarboxylic acid metal organic frameworks on carbon and subsequent pyrolysis under inert atmosphere. The resulting stable and reusable catalysts were active for synthesis of primary, secondary, tertiary, and N-methylamines (more than 140 examples). The reaction couples easily accessible carbonyl compounds (aldehydes and ketones) with ammonia, amines
Induced Self-Assembly of Platinum(II) Alkynyl Complexes through Specific Interactions between Citrate and Guanidinium for Proof-of-Principle Detection of Citrate and an Assay of Citrate Lyase
作者:Clive Yik-Sham Chung、Vivian Wing-Wah Yam
DOI:10.1002/chem.201402137
日期:2014.9.26
(3MMLCT) emission in the near‐infrared (NIR) region brought on by the induced self‐assembly of complex 1 has been demonstrated for proof‐of‐principle detection of citrate with good sensitivity and selectivity over other mono‐ and dicarboxylate substrates in the tricarboxylic acid (TCA) cycle as well as phosphate and lactate anions. Such a good selectivity toward citrate has been rationalized by the high
Discovery of a Potent Deubiquitinase (DUB) Small‐Molecule Activity‐Based Probe Enables Broad Spectrum DUB Activity Profiling in Living Cells**
作者:Daniel Conole、Fangyuan Cao、Christopher W. am Ende、Liang Xue、Sheila Kantesaria、Dahye Kang、Jun Jin、Dafydd Owen、Linda Lohr、Monica Schenone、Jaimeen D. Majmudar、Edward W. Tate
DOI:10.1002/anie.202311190
日期:2023.11.20
IMP-2373 is the first activity-based probe (ABP) that captures the activity of a large portion of the “DUBome” across multiple deubiquitinase (DUB) sub-classes with limited off-target effects in living cells, providing a complementary tool to ubiquitin ABPs, which function only in lysates. IMP-2373 enables researchers to profile DUB inhibitors target engagement and selectivity in cells, and to understand
Cobalt-based nanoparticles prepared from MOF–carbon templates as efficient hydrogenation catalysts
作者:Kathiravan Murugesan、Thirusangumurugan Senthamarai、Manzar Sohail、Ahmad S. Alshammari、Marga-Martina Pohl、Matthias Beller、Rajenahally V. Jagadeesh
DOI:10.1039/c8sc02807a
日期:——
resulting nanoparticles create stable and reusable catalysts for selective hydrogenation of functionalized and structurally diverse aromatic, heterocyclic and aliphaticnitriles, and as well as nitro compounds to primary amines (>65 examples). The synthetic and practical utility of this novel non-noble metal-based hydrogenation protocol is demonstrated by upscaling several reactions to multigram-scale
用于工业相关氢化反应的高效和选择性纳米结构催化剂的开发继续是化学研究的实际目标。尤其是腈和硝基芳烃的氢化对于伯胺的生产非常重要,伯胺构成了高级化学品,生命科学分子和材料的重要原料和关键中间体。在这里,我们报道了石墨烯壳包封的Co 3 O 4的制备-和钴-纳米颗粒通过碳上对苯二甲酸钴对苯二甲酸MOF的模板合成和随后的热解而负载在碳上。所得的纳米颗粒产生稳定且可重复使用的催化剂,用于官能化和结构多样的芳族,杂环和脂肪族腈以及硝基化合物选择性氢化为伯胺(> 65实例)。这种新型的基于非贵金属的氢化方案的合成和实用性通过将数种反应的规模扩大到数克规模并回收催化剂得到了证明。
Reusable Nickel Nanoparticles‐Catalyzed Reductive Amination for Selective Synthesis of Primary Amines
作者:Kathiravan Murugesan、Matthias Beller、Rajenahally V. Jagadeesh
DOI:10.1002/anie.201812100
日期:2019.4
The preparation of nickel nanoparticles as efficient reductive amination catalysts by pyrolysis of in situ generated Ni‐tartaric acid complex on silica is presented. The resulting stable and reusable Ni‐nanocatalyst enables the synthesis of functionalized and structurally diverse primary benzylic, heterocyclic and aliphatic amines starting from inexpensive and readily available carbonyl compounds and