Article
Energy & Fuels
Wenlong Cui, Chenze Zhao, Qingqing Zhu, Cheli Wang
Summary: An improved analytical method was developed to identify sulfide compounds in Lungu atmospheric residue. This method selectively oxidized sulfides into sulfoxides and identified them using mass spectrometry. The results showed that this method effectively ionized sulfides with lower polarity and determined their class species and structures.
Article
Chemistry, Multidisciplinary
Dina Schwarz G. Henriques, Elena Rojo-Wiechel, Sven Klare, Regine Mika, Sebastian Hoethker, Jonathan H. Schacht, Niklas Schmickler, Andreas Gansauer
Summary: This study presents a novel titanocene(III)-catalyzed deuterosilylation reaction, which can efficiently synthesize beta-deuterated anti-Markovnikov alcohols with excellent D-incorporation and high yield, providing a new strategy for drug precursor synthesis.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Analytical
Qiu-Yue Cheng, Ting Wang, Jun Hu, Hong-Yuan Chen, Jing-Juan Xu
Summary: Visible-light-mediated heterogeneous photocatalysis is a promising method for organic transformations. However, accurately detecting and identifying photogenerated species, especially short-lived radical intermediates, remains challenging. In this work, a hybrid ion emitter integrated with a pico-liter heterogeneous photocatalytic reactor was developed for the rapid identification of transient radical intermediates produced under visible-light irradiation. This novel coupling device provides a powerful tool for exploring complex heterogeneous photochemical processes and their ultrafast initial transformations.
ANALYTICAL CHEMISTRY
(2023)
Review
Chemistry, Inorganic & Nuclear
Helene Pellissier
Summary: This review presents the recent advancements in the field of enantioselective titanium-catalyzed transformations since the beginning of 2015, demonstrating the effectiveness of chiral green titanium catalysts in promoting various types of reactions. A previous review in a book published in 2016 covered the literature up to the end of 2014. Over the past seven years, a range of highly efficient reactions have been developed.
COORDINATION CHEMISTRY REVIEWS
(2022)
Review
Chemistry, Multidisciplinary
Adrien Quintard
Summary: In the past decade, multi-catalysis has become a popular alternative to traditional methods, offering rapid, efficient, and environmentally friendly ways to synthesize complex organic molecules. The use of iron-based catalysts has emerged as a cost-effective solution, with the added benefit of diverse reactivity features that expand the chemist's toolbox. These advantages position iron-based multi-catalysis as a leading technology for the future.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Inorganic & Nuclear
Rakesh Kumar, Rahul Keshri, Koushik Prodhan, Kanchan Shaikh, Apparao Draksharapu
Summary: A tetranuclear Mn(II,III,III,II) diamond core complex has been synthesized using a suitable septadentate ligand framework, and it exhibits excellent catalytic oxidation reactivity for model substrates, mimicking the enzymes catechol oxidase and phenoxazinone synthase. Remarkably, this complex can utilize aerial oxygen to catalyze the oxidation reactions of the model substrates. This tetranuclear Mn-diamond core complex could be a promising multi-enzymatic functional mimic.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Tatsuhiro Uchikura, Sotaro Kato, Yudai Makino, Megumi J. J. Fujikawa, Masahiro Yamanaka, Takahiko Akiyama
Summary: Desymmetrization is a crucial technique for synthesizing chiral compounds, especially chiral biaryls. This study presents an enantioselective synthesis of axially chiral biaryls through desymmetrization using chiral palladium phosphate as the catalyst for C(sp(3))-H activation. Mechanistic investigations reveal that C-H activation plays a crucial role in determining the rate and enantiomeric selectivity. To the best of our knowledge, this is the first report on the asymmetric desymmetrization of axially chiral compounds via C(sp(3))-H activation.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Engineering, Environmental
Wei Chen, Xinning Dai, Zhujun Liu, Bin Du, Xinyu Zheng, Dandan Ma, Xianbin Huang
Summary: In this study, sulfide-modified metal silicates (S-CoSi) were synthesized and applied in the PI-AOPs system to improve the catalytic performance. The sulfurization in metal silicate increased the specific surface area and charge transfer efficiency, enhancing the degradation performance. Experimental and calculation results showed that Co was the active site in S-CoSi, and sulfur species assisted in Co (II) regeneration and promoted the generation of 1O2.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Wei Hao, Katherine L. Bay, Caleb F. Harris, Daniel S. King, Ilia A. Guzei, Michael M. Aristov, Zhe Zhuang, R. Erik Plata, David E. Hill, K. N. Houk, John F. Berry, Jin-Quan Yu, Donna G. Blackmond
Summary: This study investigated the influence of chiral monoprotected aminoethyl amine (MPAAM) ligands on enantioselective Pd-catalyzed arylation of strong cyclopropane C(sp(3))-H bonds. The results revealed a subtle impact of ligand structure on reaction kinetics and mechanism, as well as a negative dependence of ligand concentration on reaction rate. These findings demonstrate the importance of ligand design in catalytic reactions.
Article
Chemistry, Physical
M. Assis, A. F. Gouveia, L. K. Ribeiro, M. A. Ponce, M. S. Churio, O. N. Oliveira Jr, L. H. Mascaro, E. Longo, R. Llusar, E. Guillamon, J. Andres
Summary: Chemoselective oxidation of sulfides to sulfones has been achieved using metal-based tungstates as catalysts, tolerating a broad range of functional groups. α-Ag2WO4 and NiWO4 were identified as the most efficient and selective catalysts, completing the transformation in 1 and 2 hours, respectively. The success of the selective oxidation is attributed to hydroxyl radical and singlet oxygen as redox mediators.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Multidisciplinary Sciences
Timothy J. Shaw, George W. Luther, Richard Rosas, Veronique E. Oldham, Nicole R. Coffey, John L. Ferry, Dewamunnage M. C. Dias, Mustafa Yucel, Aubin Thibault de Chanvalon
Summary: Historically, the production of reactive oxygen species (ROS) in the ocean has been attributed to photochemical and biochemical reactions. However, hydrothermal vents emit globally significant inventories of reduced Fe and S species that react rapidly with oxygen in bottom water, serving as a previously unmeasured source of ROS. The Fe-catalyzed oxidation of reduced sulfur species in hydrothermal vent plumes in the deep oceans supports the abiotic formation of ROS at concentrations 20 to 100 times higher than those in surface waters. This plume-generated ROS can alter refractory organic molecules in seawater and potentially affect global ocean carbon inventories.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Chemistry, Inorganic & Nuclear
Shweta Manchwari, Jaya Khatter, R. P. Chauhan
Summary: This study focuses on the synthesis of TiO2/CdS nanocomposites with different concentrations of precursors and their characterization using various techniques. The results show that TiO2/CdS nanocomposites exhibit excellent photocatalytic performance in the visible range compared to pure TiO2, and they have better degradation efficiency for methylene blue dye compared to rhodamine B dye. The optimum photocatalytic performance is achieved with a 1:1 M ratio of cadmium and sulphur precursors.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Yanhong Chen, Haiyan An, Shenzhen Chang, Yanqin Li, Tieqi Xu, Qingshan Zhu, Huiyun Luo, Yaohui Huang, Yuting Wei
Summary: In this study, two porous polyoxometalate-pillared metal-organic frameworks were designed and utilized as heterogeneous catalysts for the conversion of sulfides into high-value sulfoxides. Structural analysis revealed that one of the frameworks exhibited higher activity, which could be attributed to its larger channels that provide more active sites and facilitate more efficient mass transfer processes.
CHINESE CHEMICAL LETTERS
(2023)
Article
Biochemistry & Molecular Biology
Evgeniya S. Degtyareva, Julia V. Burykina, Valentine P. Ananikov
Summary: The study explores the click reaction of thiols with alkynes in the petroleum environment, leading to the formation of alpha-vinyl sulfides. A (IMes)Pd(acac)Cl catalyst was used to demonstrate tolerance to petroleum components. Detection of products at low concentrations was achieved using an alkyne labeled with an imidazole moiety.
Article
Chemistry, Inorganic & Nuclear
Tobias J. Sherbow, Lev Zakharov, Michael D. Pluth
Summary: Recent studies have shown that metal-sulfur coordination compounds can regulate reactive sulfur species (RSS) transport. The reaction of B-Ph-((t)BuIm)(3)NiCl with RSS leads to the formation of square planar complexes through protonation of a carbene ligand donor atom. Mechanistic investigation suggest that protonation may occur from the decomposition of reactants, interactions with favorable counterions, or generation of transient unidentified RSS.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Organic
Jie Feng, Qiaoling Zhang, Fuhai Li, Lu Yang, Ratnakar Reddy Kuchukulla, Qingle Zeng
Summary: A transition-metal-free reductive C-P cross-coupling reaction of arylvinyl sulfides with diarylphosphine oxides has been developed, allowing the synthesis of diaryl(2-arylethyl)phosphine oxides and the construction of a C-P bond through C-S bond cleavage and reduction of a C-C double bond in one pot.
Article
Chemistry, Multidisciplinary
Wenting Zheng, Xianlie Chen, Feng Chen, Ze He, Qingle Zeng
Summary: Sulfoximines are versatile compounds that are widely used in various fields, and can be synthesized and transformed in different ways, showing great potential for a wide range of applications.
Article
Engineering, Environmental
Wenting Zheng, Ratnakar Reddy Kuchukulla, Xiangning Xu, Dandan Zhang, Lihong Zhou, Qingle Zeng
Summary: The article introduces a novel adsorbing material CC-GP-D with comb-shaped structure, prepared with chitosan as the main chain, which shows higher adsorption efficiency and cost-effectiveness in removing heavy metal ions from sewage.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Review
Chemistry, Multidisciplinary
Lu Yang, Bingren Wang, Xianjie Yin, Qingle Zen
Summary: Sulfenate anions as key intermediates in enantioselective synthesis have attracted attention in recent years. Developing new synthetic methods to generate sulfenate anions allows for the preparation of various enantiopure sulfoxides, which are widely used as auxiliaries, ligands, organocatalysts, and biologically active compounds. This review covers the in situ preparation methods and recent applications of sulfenate anions in catalytic asymmetric synthesis of chiral sulfoxides.
Article
Chemistry, Organic
Yiding Wang, Lei Shen, Helin Wang, Yixin Luo, Qingle Zeng
Summary: The ring-opening addition reaction of activated vinyl cyclopropanes with N-tosylhydrazones in the presence of palladium(0) and triphenylphosphine yields N-tosylhydrazone butenylmalonate compounds. Aromatic aldehyde-derived N-tosylhydrazones produce both terminal and internal N-allylated products, with the terminal products being the major ones. On the other hand, ketone-derived tosylhydrazones only yield terminal addition products. The transformation relationship between the terminal and internal N-allylated products is also observed. A reasonable mechanism based on preliminary experimental results is proposed.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Organic
Xiaokang Kang, Helin Wang, Qingle Zeng
Summary: A new method for N-sulfenylation of sulfoximines using thiosulfonates under mild conditions is disclosed in this study. A series of aliphatic and aromatic N-sulfenyl sulfoximines were synthesized with good to excellent yields without the use of transition metals. The applicability of this method was demonstrated through gram-scale experiments.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2022)
Review
Biochemistry & Molecular Biology
Bingren Wang, Xiayu Liang, Qingle Zeng
Summary: Sulfoximines, a widely distributed structural motif in bioactive molecules and functional materials, have attracted significant attention from organic chemistry, pharmaceutical industries, and materials science. They have proven to be an effective directing group for C-H functionalization, particularly in the synthesis of cyclic sulfoximines. This review focuses on recent advances in the synthesis of cyclic sulfoximines via C-H activation strategy, categorized according to substrate types.
Article
Chemistry, Organic
Xianlie Chen, Ping Zhao, Qingle Zeng
Summary: A white light/NIS-promoted three component reaction was developed for the synthesis of organylselenylethyl sulfonylhydrazones using alkenes, N-sulfonylhydrazones, and diorganyl diselenides. The reaction was carried out under mild conditions and showed good tolerance towards common functional groups. Heteroaryl and aliphatic diselenides were also suitable substrates, and the reaction could be performed on a gram scale. The reaction exhibited a wide substrate scope, providing moderate to high yields and excellent regioselectivities. UV-visible absorption spectra confirmed the formation of photoactive intermediates, which matched the wavelength of the applied white LED. A plausible mechanism was proposed based on UV-visible light experiments and control experiments.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Organic
Qingle Zeng, Xianjie Yin, Yiding Wang
Summary: Allylic compounds are widely used in various industries, and vinylcyclopropanes have rapidly developed in organic synthesis. Activated vinylcyclopropanes are important raw materials for the synthesis of functionalized heterocyclic compounds or allyl derivatives. Transition metal-catalyzed allylation of vinyl cyclopropanes can form new bonds with nucleophiles containing different centers. This article reviews the progress on this reaction.
TETRAHEDRON LETTERS
(2023)
Article
Chemistry, Applied
Xianjie Yin, Helin Wang, Lei Shen, Qingle Zeng
Summary: A copper chloride-catalyzed three-component reaction of olefins, indoles, and diaryl diselenides under irradiation of blue LED light is presented. Various diaryl diselenides, including diheteroaryl diselenides, are suitable for this bifunctionalization of olefins. The reaction provides 26 examples of β-(hetero)arylselenyl indoles in 60%-87% yields, and the proposed mechanism involves the activation of diaryl diselenides, electrophilic addition of arylselenium cations to styrenes, and Friedel-Crafts-type alkylation at the 3-position of NH-indoles.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Lu Yang, Xiayu Liang, Yuyang Ding, Xinran Li, Xuefeng Li, Qingle Zeng
Summary: This review presents recent transition metal catalyzed transformations for the synthesis of chiral five- and six-membered benzo oxygen heterocycles and discusses in detail the reaction mechanisms and processes for chirality transfer or control.
Review
Chemistry, Multidisciplinary
Ping Zhao, Qingle Zeng
Summary: In recent years, there has been a significant increase in the prominence of enantioenriched sulfur(VI) compounds in the chemical science, particularly in the realm of bioactive molecules. However, the synthesis of these compounds has presented significant challenges, leading to the exploration of diverse synthetic methods. Therefore, this review provides an in-depth analysis of the latest advancements in the synthesis of sulfoximines, sulfonimidate esters, sulfonimidamides, and sulfonimidoyl halides since 1971.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Biochemical Research Methods
Qinqin Tang, Ping Zhao, Qingle Zeng
Summary: This paper describes the enantioseparation of 12 chiral sulfoximines on polysaccharide-based chiral stationary phases (CSPs). The investigation of chiral column, high-performance liquid chromatography parameters, such as mobile phase composition and column temperature, reveals that Chiralcel OJ-H column can resolve all of the 12 compounds, while Chiralpak AD-H column and Chiralpak AS-H column can separate eight and nine molecules, respectively. The sulfoximines are effectively resolved with Chiralcel OJ-H column using a mixture of n-hexane/2-propanol (80:20) as the mobile phase.
JOURNAL OF CHROMATOGRAPHIC SCIENCE
(2023)
Article
Chemistry, Organic
Ping Zhao, Qingle Zeng
Summary: We have developed a method for the synthesis of diverse 1-sulfonylquinazoline-2,4(1H,3H)-diones and 2-sulfonamidobenzonitriles. The method utilizes substrate control and chemoselectivity through condensation reactions. The reactions are carried out at room temperature within half an hour using easily accessible starting materials and yield moderate to excellent product yields.
JOURNAL OF HETEROCYCLIC CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Helin Wang, Alex Adonis Nkingwa, Fawad Islam, Chao Xu, Qingle Zeng
Summary: Organochalcogen molecules have extensive applications in various fields. The difunctionalization of olefins is a successful technique for introducing two functional moieties in a single-step reaction. The combination of olefins with diorganyl dichalcogenides effectively increases molecular complexity.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
