Article
Chemistry, Applied
Hui-Shu Lin, Yong-Zhou Pan, Yu-Hong Tian, Ying-Ming Pan, Xu Wang
Summary: A Pd-catalyzed tandem cyclization reaction has been developed, allowing the efficient construction of new C-C and C-N bonds via the orderly insertion of isocyanides. Various indeno[2,1-b]pyrroles were prepared in moderate to high yields under air atmosphere at 100°C.
ADVANCED SYNTHESIS & CATALYSIS
(2022)
Article
Chemistry, Multidisciplinary
Athukuri Edukondalu, Sandip Sambhaji Vagh, Ting-Han Lin, Wenwei Lin
Summary: An efficient protocol for the chemoselective construction of indeno[1,2-b]pyrroles and rearranged derivatives has been reported via an N-acylation/cyclization/Wittig reaction. Mechanistic investigations revealed the crucial role of a spiro-indene-1,2'-[1,3,4]oxadiazol intermediate and its further reaction with phosphine to generate betaine, leading to the formation of the targeted heteroarenes predominantly through a Wittig reaction.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Organic
Milos Petkovic, Milos Jovanovic, Predrag Jovanovic, Milena Simic, Gordana Tasic, Vladimir Savic
Summary: Pyrrole derivatives with C(2)-aryl substituents are an important and widespread class of heterocyclic compounds. A novel approach combining the dual role of arylating agent as nitrogen protecting group and involved in the arylation step has been developed for the direct arylation synthesis of C(2)-arylpyrroles. The deprotection as a final stage is carried out simultaneously utilizing amines as reacting components, leading to mild conditions and exclusive C(2) selectivity.
SYNTHESIS-STUTTGART
(2022)
Article
Chemistry, Organic
Weiqiang Chen, Hui-Jing Li, Yun-Fei Cheng, Yan-Chao Wu
Summary: A C2-arylation reaction of N-acyl pyrroles using Pd(PPh3)(4) as a catalyst in combination with Ag2CO3 under air has been developed for the first time. This method provides a straightforward approach to the synthesis of valuable arylated pyrroles with good substrate tolerance and moderate to good yields under standard conditions. Interestingly, substrates with a thiophene or furan ring were found to be more reactive than pyrrole in the present catalytic system.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2021)
Article
Chemistry, Physical
Naima Munir, Navin Gurbuz, M. Naveed Zafar, Enes Evren, Betul Sen, Muhittin Aygun, Ismail Ozdemir
Summary: This study reports eight new asymmetric N-heterocyclic carbene ligands and their possible pyridine-assisted Pd(II) complexes. The synthesized compounds were characterized and the structures of the pro-ligand salts and complexes were determined. The pyridine-assisted Pd-NHC complexes were found to be excellent C-H functionalization catalysts for regioselective C5 arylation products.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Multidisciplinary
Daniele Mazzarella, Antonio Pulcinella, Loic Bovy, Remy Broersma, Timothy Noel
Summary: This study demonstrates a photocatalytic procedure for the acylation/arylation of unfunctionalized alkyl derivatives in flow, utilizing decatungstate anion and nickel catalyst to form C(sp(3))-C(sp(2)) bonds. The intensified conditions in flow reduce the reaction time significantly, without altering the reaction mechanism, accelerating the overall process.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Xin Liu, Yun Zhou, Xiaotian Qi, Renhe Li, Peng Liu, Guangbin Dong
Summary: A site- and regioselective vicinal di-carbo-functionalization of indoles has been realized by the palladium/norbornene (Pd/NBE) cooperative catalysis. The C1-substituted NBE plays a key role in promoting the turnover-limiting oxidative addition step.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Jiangjie Zhang, Jun Ying, Xiao-Feng Wu
Summary: A novel palladium-catalyzed tandem cyclization and carbonylation reaction was developed for the synthesis of indeno[1,2-b]indol-10(5H)-one derivatives. The reaction proceeded smoothly with high yields using formic acid as the CO source. This method can also be applied for the modification of various bioactive molecules.
JOURNAL OF CATALYSIS
(2023)
Article
Chemistry, Organic
Junwei Xi, Han Yang, Lin Li, Xue Zhang, Chunyu Li, Zhenhua Gu
Summary: This work demonstrates a palladium-catalyzed kinetic resolution/ring-opening reaction of 8H-indeno[1,2-c] thiophen-8-ols, resulting in the synthesis of optically active compounds with high enantiomeric excesses. The synthetic applications of the obtained thiophenyl atropisomers were briefly explored.
Article
Chemistry, Organic
Olutayo N. Farinde, Vanaparthi Satheesh, Kendra K. Shrestha, Carmen R. Rhinehalt, Vinod G. Landge, Michael C. Young
Summary: Cinnamylamines are important components of many drugs targeting G protein-coupled receptors. Existing methods for synthesizing 3,3-diarylallylamines often involve a multistep process that includes poorly-selective Wittig addition and direct aryl addition to N-protected cinnamylamines using aryl iodides which leads to decreased selectivity. However, by using aryl boronic acids, the yield and selectivity can be improved.
ORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Organic
Shoko Nagahata, Seiya Takei, Satoshi Ueno
Summary: In this study, gamma-phenyl-beta,gamma-unsaturated ketones were synthesized in situ and reacted with alpha,beta-unsaturated carbonyls to form tri- or diarylated benzophenones in a one-pot manner.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Review
Biochemistry & Molecular Biology
Garazi Urgoitia, Maria Teresa Herrero, Fatima Churruca, Nerea Conde, Raul SanMartin
Summary: Direct arylation is an atom-economical alternative to established procedures, and the use of palladium pincer complexes as catalysts has led to improved efficiency and reaction yields. This paper reviews intra- and intermolecular direct arylation reactions and discusses the role of these active catalysts.
Article
Engineering, Environmental
Yehezkiel Steven Kurniawan, Arif Cahyo Imawan, Yoeretisa Miggia Stansyah, Tutik Dwi Wahyuningsih
Summary: A simple and efficient method for synthesizing acetophenone derivatives using PdO-activated bentonite as a heterogeneous catalyst was successfully developed. The synthesis of acetophenone derivatives with various substituents at the para position achieved high yields under optimal conditions. The catalysis mechanism was proposed to be mainly facilitated by the acid sites of the PdO-activated bentonite catalyst, which showed good recyclability and environmental friendliness.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Mi Peng, Zhimin Jia, Zirui Gao, Ming Xu, Danyang Cheng, Meng Wang, Chengyu Li, Linlin Wang, Xiangbin Cai, Zheng Jiang, Hong Jiang, Ning Wang, Dequan Xiao, Hongyang Liu, Ding Ma
Summary: Atomically dispersed Pd catalysts supported on annealed nanodiamond exhibit superior activity and stability in propane direct dehydrogenation, with better resistance to coke formation. The high dispersion of Pd species in the catalyst is well-preserved during the reaction, leading to significantly improved performance compared to cluster/particle catalysts at high-reaction temperatures. This work provides deeper insights into designing highly dispersed metal catalysts with in situ regeneration of active sites in high-temperature catalytic reactions.
Article
Chemistry, Organic
Issa Yavari, Ramin Mohsenzadeh, Parisa Ravaghi, Maryam Safaei
Summary: Hydrogen-bond-assisted azomethine ylides derived from 2-(benzylamino)-2-(1,3-dioxo-1,3-dihydro-2H-inden-2-ylidene)acetonitriles undergo a diastereoselective synthesis of highly substituted pyrrolidin-2-ylidene derivatives through a formal Huisgen 1,3-dipolar cycloaddition with beta-bromo-beta-nitrostyrenes. When beta-nitrostyrenes are used as the alkene component, 2-(4,5-diaryl-1,5-dihydro-2H-pyrrol-2-ylidene)-1H-indene-1,3(2H)-diones are obtained. Efficient conversion of pyrrolidene-2-ylidenes to the corresponding pyrrol-2-ylidenes takes place in refluxing 1-propanol in the presence of excess Et3N. The structure of the pyrrolidene-2-ylidene derivative is determined by X-ray crystallography.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Xiao Li, Jixin Tang, Han Liu, Kuan Gao, Xiangru Meng, Jie Wu, Hongwei Hou
CHEMISTRY-AN ASIAN JOURNAL
(2019)
Article
Nanoscience & Nanotechnology
Kuan Gao, Huijie Li, Qing Meng, Jie Wu, Hongwei Hou
Summary: The study demonstrates that porous CdS@Zr-MOF composite photocatalysts can significantly enhance the oxidative coupling photocatalytic activity of amines, achieving up to a 95% conversion yield for the synthesis of imines under air and visible light conditions, with imines as the sole product.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Inorganic & Nuclear
Xiao Li, Kuan Gao, Bingyan Mo, Jixin Tang, Jie Wu, Hongwei Hou
Summary: A surface site engineering strategy was used to construct a porous Z-scheme heterojunction photocatalyst BiOI@NU-1000 for photocatalytic hydrogen evolution, showing significant improvement in performance and providing an important direction for further research on efficient photocatalysts.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Kuan Gao, Chao Huang, Yan Qiao, Shasha Wang, Jie Wu, Hongwei Hou
Summary: Researchers have reported a novel gas-solid reaction mechanism of a Cu-I-MOF material that can cleave ammonia and primary amine molecules, and produce H-2 gas. Experimental evidence confirms that this material can activate ammonia and water in gas-solid environments.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Lianlian Wang, Dalong Shen, Heyao Zhang, Bingyan Mo, Jie Wu, Hongwei Hou
Summary: In this study, a series of In2S3/NU-1000 heterojunction photocatalysts were constructed to efficiently catalyze the oxidation of sulfides into sulfoxides, with the ability to detoxify sulfur mustard simulant CEES. The enhanced photocatalytic activity was attributed to the Z-scheme photocatalytic system, which showed improved light harvesting, electron-hole separation, and porosity. Mechanism studies revealed superoxide radical and singlet oxygen as the main oxidative species in the system, offering insights for designing efficient photocatalysts for detoxification purposes.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Bingyan Mo, Shuwen Li, Hao Wen, Huanhuan Zhang, Heyao Zhang, Jie Wu, Baojun Li, Hongwei Hou
Summary: This study successfully synthesized a series of catalysts with regulated functional groups for hydrogen generation from ammonia borane hydrolysis, showing significantly enhanced catalytic activity. The optimized catalyst exhibited the highest catalytic activity, which is attributed to the bimolecular activation channels formed by metal nanoparticles and Ti3C2Tx-Y.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Inorganic & Nuclear
Yujie Zhao, Yang Cui, Lixia Xie, Kangshuai Geng, Jie Wu, Xiangru Meng, Hongwei Hou
Summary: In this study, a novel metal organic framework (MOF) photocatalyst, Co-MOF, was prepared by integrating two functional organic linkers. The Co-MOF/g-C3N4 composites exhibited ultrahigh selectivity and the highest CO production rate in the photocatalytic process. This work paves the pathway for designing photocatalysts with ideal CO2 reduction performance.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Shuwen Li, Heyao Zhang, Gaigai Wu, Jie Wu, Hongwei Hou
Summary: In this study, a new class of self-detoxifying composites, namely, HNTs@NU-912, HNTs@NU-912-I and HNTs@UiO-66-NH2, were constructed by in situ synthesis of hexanuclear zirconium cluster-based metal-organic frameworks (Zr-MOFs) NU-912, NU-912-I and UiO-66-NH2, respectively, with HNTs. These composites exhibited higher catalytic efficiency for the hydrolysis of DMNP compared to the corresponding Zr-MOFs.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
Lianlian Wang, Yujie Zhao, Bin Zhang, Gaigai Wu, Jie Wu, Hongwei Hou
Summary: The combination of photocatalytic hydrogen evolution and oxidative coupling of benzylamine into imines to construct an overall photocatalytic redox system is highly desirable. A yolk-shell heterojunction Pt@UiO-66-NH2@ZnIn2S4 (Pt@UiO-66-NH2@ZIS) is synthesized and used as a dual-functional photocatalyst for C-N coupling reaction of benzylamine and proton reduction half-reaction. The unique design of Pt@UiO-66-NH2@ZIS shows significantly higher catalytic activities than individual ZnIn2S4 and UiO-66-NH2, promoting both C-N coupling reaction and H-2 evolution.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Bin Zhang, Qing Meng, Ying Lei, Gaigai Wu, Jinghan Xu, Xiangru Meng, Jie Wu, Hongwei Hou
Summary: This study constructs efficient Z-scheme heterojunction photocatalysts BNU-X, which enhance light capture, promote photogenerated electron-hole separation, and achieve efficient adsorption and photocatalytic degradation of TC. Moreover, this research provides possibilities for the development of porous Z-scheme photocatalysts based on photoactive MOF materials and inorganic semiconductors for the self-purification and photodegradation of organic contaminants.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Heyao Zhang, Qing Meng, Huijie Li, Gaigai Wu, Ke Li, Jinghan Xu, Lianlian Wang, Jie Wu, Xiangru Meng, Hongwei Hou
Summary: In this study, a series of crystalline Z-scheme photocatalytic heterojunctions BiOI@PCN-222 were constructed by integrating BiOI into the channel of a porphyrin-based Zr-MOF PCN-222. The resulting BP-X demonstrated stronger visible light absorption and retained the mesoporous nature. Among them, BP-3 exhibited superior adsorption and photodegradation activity towards tetracycline, attributed to its strong adsorption capacity and highly dispersed Z-scheme heterojunction.
Article
Chemistry, Multidisciplinary
Chun-Hua Gong, Zhi-Bing Sun, Man Cao, Xi-Ming Luo, Jie Wu, Qian-You Wang, Shuang-Quan Zang, Thomas C. W. Mak
Summary: Two porphyrinic silver-chalcogenide cluster-based MOFs were achieved using a phosphate anionic template strategy. The highly photoactive organic building modules combined with Lewis acidic silver clusters allow both MOFs to function as versatile catalysts for the simultaneous degradation of sulfur mustard and nerve agent simulants.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Huijie Li, Kuan Gao, Bingyan Mo, Qing Meng, Ke Li, Jie Wu, Hongwei Hou
Summary: In this study, porous two-dimensional metal-organic framework (2D-MOF) nanosheets were synthesized and characterized, showing excellent adsorption and separation performance for cationic dyes in water. The adsorption mechanism studies revealed that their outstanding performance could be attributed to their unique characteristics, such as ultrathin and porous nature, abundant surface-active sites, and favorable electrostatic interactions. Moreover, these nanosheets displayed excellent recyclability and reusability, making them potentially valuable for rapid and selective cationic dye adsorption and separation applications.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Buwei Hou, Jie Wu
DALTON TRANSACTIONS
(2020)
Article
Chemistry, Inorganic & Nuclear
Han Liu, Yanru Fan, Xiao Li, Kuan Gao, Huijie Li, Yisen Yang, Xiangru Meng, Jie Wu, Hongwei Hou
DALTON TRANSACTIONS
(2020)
