Search Results - "Neumann, Helfried"

Palladium‐Catalyzed Ethylene Methoxycarbonylation Using Bidentate Phosphines: How the Stereochemistry of the Ligand Affects the Catalyst's Activity.

Authors: Liu, Jiali Neumann, Helfried Sang, Rui et al.

Source: Chemistry - A European Journal. 6/23/2025, Vol. 31 Issue 35, p1-9. 9p.

Practical Enantioselective Hydrogenation of Aryl Enamides Catalyzed by Cobalt‐Monodentate Phosphoramidites.

Authors: Chakrabortty, Soumyadeep Zheng, Shasha Snabilié, Demi D. et al.

Source: Angewandte Chemie; 3/23/2026, Vol. 138 Issue 13, p1-10, 10p

A Highly Dispersed Heterogeneous Cobalt Catalyst for Efficient Domino Hydroformylation Reductive Amination of Olefins.

Authors: Sun, Kangkang Su, Tianyue Lu, Guo‐Ping et al.

Source: Angewandte Chemie; 2/24/2025, Vol. 137 Issue 9, p1-7, 7p

Proposing Oxalic Acid as Chemical Storage of Carbon Dioxide to Achieve Carbon Neutrality.

Authors: Scarpa de Souza, Edson Leonardo Neumann, Helfried Roque Duarte Correia, Carlos et al.

Source: ChemSusChem; 2/1/2025, Vol. 18 Issue 3, p1-7, 7p

Palladium‐Catalyzed Four‐Component Carbonylation Reactions of Acetylene: Synthesis of β‐Perfluoroalkyl Acrylamides.

Authors: Cao, Zhusong Wang, Qiang Neumann, Helfried et al.

Source: European Journal of Organic Chemistry; 12/16/2024, Vol. 27 Issue 47, p1-4, 4p

Modular and Diverse Synthesis of Acrylamides by Palladium‐Catalyzed Hydroaminocarbonylation of Acetylene.

Authors: Cao, Zhusong Wang, Qiang Neumann, Helfried et al.

Source: Angewandte Chemie International Edition; Oct2024, Vol. 63 Issue 40, p1-7, 7p

Straightforward Synthesis of 1‐aryloxy‐1,1‐difluoro‐3‐aminopropan‐2‐ols – Accessing Fluorinated Derivatives of Commercialized Beta‐Blockers.

Authors: Moritz, Jan‐Ole Liu, Shuang Konieczny, Katharina et al.

Source: European Journal of Organic Chemistry; 9/16/2024, Vol. 27 Issue 35, p1-4, 4p

Ruthenium‐Catalyzed Site‐Selective Trifluoromethylations and (Per)Fluoroalkylations of Anilines and Indoles.

Authors: Li, Yang Neumann, Helfried Beller, Matthias

Source: Chemistry - A European Journal. 5/26/2020, Vol. 26 Issue 30, p6784-6788. 5p.

Direct synthesis of adipic acid esters via palladium-catalyzed carbonylation of 1,3-dienes.

Authors: Ji Yang Jiawang Liu Neumann, Helfried et al.

Source: Science (pre-March 2025). 12/20/2019, Vol. 366 Issue 6472, p1514-1517. 4p. 2 Color Photographs, 1 Diagram.

Subjects: Pyridyl compounds, Phosphine, Catalysis, Butadiene, Carbon monoxide, Palladium catalysts, Carbonylation, Butanol

Palladium‐Catalyzed Methylation of Nitroarenes with Methanol.

Authors: Wang, Lin Neumann, Helfried Beller, Matthias

Source: Angewandte Chemie. 4/8/2019, Vol. 131 Issue 16, p5471-5475. 5p.

Development of a Palladium‐Catalyzed Process for the Synthesis of Z‐Alkenes by Sequential Sonogashira–Hydrogenation Reaction.

Authors: Hancker, Sören Neumann, Helfried Beller, Matthias

Source: European Journal of Organic Chemistry. 10/17/2018, Vol. 2018 Issue 38, p5253-5259. 7p.

Regiodivergent Carbonylation of Alkenes: Selective Palladium‐Catalyzed Synthesis of Linear and Branched Selenoesters.

Authors: Cao, Zhusong Wang, Qiang Neumann, Helfried et al.

Source: Angewandte Chemie International Edition; 1/8/2024, Vol. 63 Issue 2, p1-8, 8p

A General, Activator‐Free Palladium‐Catalyzed Synthesis of Arylacetic and Benzoic Acids from Formic Acid.

Authors: Wang, Lin Neumann, Helfried Beller, Matthias

Source: Angewandte Chemie. 6/4/2018, Vol. 130 Issue 23, p7026-7030. 5p.

An Efficient Protocol to Synthesize N‐Acyl‐enamides and ‐Imines by Pd‐Catalyzed Carbonylations.

Authors: Wang, Lin Neumann, Helfried Spannenberg, Anke et al.

Source: Chemistry - A European Journal. 2/9/2018, Vol. 24 Issue 9, p2164-2172. 9p.

Pd-Catalyzed Cyanation of (Hetero)Aryl Halides by Using Biphosphine Ligands.

Authors: Zhang, Shaoke Neumann, Helfried Beller, Matthias

Source: Chemistry - A European Journal. 1/2/2018, Vol. 24 Issue 1, p67-70. 4p.

MOF-derived cobalt nanoparticles catalyze a general synthesis of amines.

Authors: Jagadeesh, Rajenahally V. Murugesan, Kathiravan Alshammari, Ahmad S. et al.

Source: Science (pre-March 2025). 10/20/2017, Vol. 358 Issue 6361, p326-332. 7p. 2 Color Photographs, 4 Diagrams.

Subjects: Amines, Organic synthesis, Carbonyl compounds, Nanoparticles, Organometallic compounds

Übergangsmetallkatalysierte Nutzung von Methanol als C1-Quelle in der organischen Synthese.

Authors: Natte, Kishore Neumann, Helfried Beller, Matthias et al.

Source: Angewandte Chemie. Jun2017, Vol. 129 Issue 23, p6482-6492. 11p.

Transition-Metal-Catalyzed Utilization of Methanol as a C1 Source in Organic Synthesis.

Authors: Natte, Kishore Neumann, Helfried Beller, Matthias et al.

Source: Angewandte Chemie International Edition. Jun2017, Vol. 56 Issue 23, p6384-6394. 11p.

Iron-Catalyzed Synthesis of Five-Membered Cyclic Carbonates from Vicinal Diols: Urea as Sustainable Carbonylation Agent.

Authors: Peña‐López, Miguel Neumann, Helfried Beller, Matthias

Source: European Journal of Organic Chemistry. Aug2016, Vol. 2016 Issue 22, p3721-3727. 7p.

Rhodium‐Catalyzed Formylation of Unactivated Alkyl Chlorides to Aldehydes.

Authors: Wang, Peng Wang, Yaxin Neumann, Helfried et al.

Source: Chemistry - A European Journal; 2/7/2023, Vol. 29 Issue 8, p1-8, 8p