Article
Chemistry, Multidisciplinary
Chengfeng Zhu, Haitong Tang, Keke Yang, Yu Fang, Kun-Yu Wang, Zhifeng Xiao, Xiang Wu, Yougui Li, Joshua A. Powell, Hong-Cai Zhou
Summary: Using enantiopure amino acid ligands and trivalent lanthanides can result in rare chiral polynuclear structures with excellent enantioselective separation capabilities for various asymmetric molecules.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Arun-Libertsen Lawzer, Thomas Custer, Jean-Claude Guillemin, Robert Kolos
Summary: While the archetypal free phosphinidene, H-P, has been studied for over a century, reports on uncomplexed, univalent phosphorus compounds are very sparse. Here, the production of HCCP in solid argon through UV-induced rearrangement and subsequent dehydrogenation of phosphapropyne, CH3CP, was demonstrated. The migration of hydrogen atoms along the CCP backbone of CH3CP resulted in the production of previously unobserved species 1-phosphapropadiene, CH2=C=PH, followed by the ethynylphosphine, HCCPH2.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Materials Science, Multidisciplinary
Jack Harrison, Hariom Jani, Paolo G. Radaelli
Summary: This study explores topological structures in A-type antiferromagnets, focusing on the candidate material α-Fe2O3 for antiferromagnetic spintronics. By utilizing interfacial Dzyaloshinskii-Moriya interaction, the researchers stabilize a variety of topological textures, including previously undiscovered AFM skyrmions, and provide a scaling model for texture sizes based on simple dimensional analysis.
Article
Chemistry, Organic
Sheng Yang, Chun-Jui Chu, Todd L. Lowary
Summary: In this study, we achieved the de novo asymmetric synthesis of 3,6-dideoxy sugars abequose, paratose, and tyvelose from 2-acetylfuran. By a series of reactions, we obtained the target products successfully.
Article
Chemistry, Multidisciplinary
Veit G. Haensch, Helmar Goerls, Christian Hertweck
Summary: A new photochemical route for the synthesis of strained [3.2]paracyclophanes is reported in this study, showing its effectiveness and versatility. Through intramolecular formation of a new C-C bond induced by UV irradiation, the method enables the synthesis of both symmetric and asymmetric paracyclophanes.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Ze-Xin Zhang, Charles Bell, Mingyan Ding, Michael C. Willis
Summary: Sulfondiimidamides, the double aza-variants of sulfonamides, are rarely reported due to their poor synthetic accessibility. In this study, a two-step synthesis of sulfondiimidamides was described, using a hypervalent iodine-mediated amination as the key step. The method demonstrated operational simplicity, broad scope, and concise nature, making it attractive for discovery chemistry applications.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Organic
Pablo Wessig, Saskia Krebs
Summary: The photochemical fragmentation of N-aroylsulfonamides is a powerful method for preparing various biaryls, obtained easily in two steps from amines and tolerant of various functional groups. The mechanism involves a spirocyclic biradical as a key intermediate, elucidated through the interaction of photophysical and quantum chemical methods.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Masanari Hirahara, Yasushi Umemura
Summary: Photosubstitution reactions of cis-[Ru(bpy)(2)(MeCN)(2)](2+) with a pyrazole ligand were studied, revealing that the presence of a mild base enhanced a second photosubstitution reaction. The yields of the reaction were further increased in solvents with moderate coordinating properties.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Applied
Kyle Quasdorf, James Murray, Hanh Nguyen, Maria V. Silva Elipe, Ari Ericson, Eric Kircher, Lianxiu Guan, Seb Caille
Summary: The study discusses the development of a photochemical bromination/alkylation sequence as part of a continuous process for the synthesis of an intermediate en route to AMG 423, which has led to a significant reduction in reaction time and elimination of aqueous waste streams. Mechanistic and kinetic studies are also discussed, providing insights into notable features of the photochemical bromination.
ORGANIC PROCESS RESEARCH & DEVELOPMENT
(2022)
Article
Chemistry, Multidisciplinary
Tiffany O. Paulisch, Lukas A. Mai, Felix Strieth-Kalthoff, Michael J. James, Christian Henkel, Dirk M. Guldi, Frank Glorius
Summary: In this research, a photocatalyzed two-carbon ring expansion of beta-dicarbonyl compounds with unactivated olefins was achieved, facilitated by selective sensitization of the substoichiometric enol tautomer and the identification of a metal-based sensitizer fac-[Ir(CF3-pmb)(3)]. This sensitizer proved effective in facilitating the reaction, allowing for the synthesis of medium-sized rings in organic compounds.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Malte Leverenz, Hendrik Brockmann, Andreas Dreuw, Thorsten Bach, Golo Storch
Summary: A strong enantiodivergence was observed in the oxadi-x-methane rearrangement of 2,4cyclohexadienones, ranging from +92% ee to -45% ee. The stereochemical outcome is determined solely by the oxazaborolidine substituents. The change in enantioselectivity is linked to a change in substrate binding, and TDDFT studies in the S1 excited state provided further mechanistic insights.
Article
Chemistry, Inorganic & Nuclear
Yuhan Yang, Shujie Dai, Xiyuan Yu, Baogang Liu, Longfeng Zhu, Hongxia Shen, Xuebo Cao
Summary: This article presents a green route for synthesizing pure silica zeolites with six-membered rings (6MRs) using ethanol filling and zeolite seeding, leading to successful synthesis of pure silica zeolites with 6MRs such as SOD, MTN, and NON.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Anand Pariyar, Debesh Sharma, Sagarmani Rasaily, Shivanand Chettri, Disha Sureka, Sudarsan Tamang
Summary: This study reports the synthesis of a novel 2D metal-organic framework with pre-existing unsaturated Lewis acid sites, which can be directly used for catalyzing organic transformations and synthesizing biologically active chiral imidazolidines. The material exhibits excellent reusability and high stereoselectivity.
INORGANIC CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Wahyu Prasetyo Utomo, Michael K. H. Leung, Zongyou Yin, Hao Wu, Yun Hau Ng
Summary: Ammonia plays a crucial role in the fertilizer industry and nitrogen-containing chemical production, and the development of new methods for NH3 synthesis through nitrogen reduction reactions is more environmentally friendly. Bi-based materials have been found to exhibit promising activities for NRR to overcome high kinetic barriers.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Matteo Monai, Marianna Gambino, Sippakorn Wannakao, Bert M. Weckhuysen
Summary: An emerging technology in the chemical industry, the conversion of propane directly into a mixture of propylene, ethylene, and butenes offers new possibilities for plastics production. Combining traditional propane dehydrogenation (PDH) and propylene metathesis into a single step presents both new research challenges and promising applications in the field.
CHEMICAL SOCIETY REVIEWS
(2021)
