Article
Chemistry, Multidisciplinary
Hamed M. Alshammari, Obaid F. Aldosari, Mohammad Hayal Alotaibi, Raja L. Alotaibi, Mosaed S. Alhumaimess, Moataz H. Morad, Syed Farooq Adil, Mohammed Rafi Shaik, Mohammad Shahidul Islam, Mujeeb Khan, Abdulrahman Alwarthan
Summary: Pd/C catalysts on activated carbon with varying palladium content showed high catalytic activity for Suzuki-Miyaura coupling reactions and Mizoroki-Heck cross-coupling reactions. The catalyst with 3% Pd/C demonstrated better efficiency and reusability compared to other synthesized catalysts, indicating the significance of high 'Pd' content and uniform impregnation on the catalyst activity.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Applied
Kanticha Khomthawee, Nattaporn Nilada, Antika Homchuen, Pranorm Saejueng
Summary: The CS-EDTA-Pd catalyst was prepared by dissolving chitosan and EDTA in acetic acid, forming beads, adsorbing palladium(II), and reducing it to palladium(0) with ethanol reflux. The catalyst was characterized by various techniques. It was then tested in the Suzuki-Miyaura cross-coupling reaction and showed good catalytic activity. The catalyst is inexpensive, easy to prepare, and can be reused multiple times with only a slight loss in product yields.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Yahao Dong, Zhangquan Zhou, Yanan Wang, Xinjuan Li, Tao Li, Yihang Ren, Wendi Hu, Linbo Zhang, Xinhui Zhang, Chunyan Wei
Summary: In this study, a new hypercrosslinked polymer supported palladium catalyst was synthesized and characterized. The catalyst exhibited high efficiency in the preparation of biphenyl compounds with low catalyst loading. It also showed advantages in terms of availability of raw materials, stability, and cost-effectiveness.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Polymer Science
Noelia Esteban, Miguel Claros, Cristina Alvarez, Angel E. Lozano, Camino Bartolome, Jesus M. Martinez-Ilarduya, Jesus A. Miguel
Summary: A new set of microporous organic polymers (POPs) with high microporosity and moderate thermal stability has been synthesized via Friedel-Crafts knitting. These polymers, containing diphosphine derivatives, act as efficient catalysts for Suzuki-Miyaura coupling reactions, exhibiting excellent recyclability.
Article
Crystallography
Lixin You, Rui Tan, Xiaojuan Wang, Jianhong Hao, Shiyu Xie, Gang Xiong, Fu Ding, Andrei S. Potapov, Yaguang Sun
Summary: In this study, a new heterogeneous catalyst Pd-NHC@Eu-BCI was synthesized by incorporating N-heterocyclic carbene-palladium active sites into a 2D coordination polymer based on a 1,3-bis(carboxymethyl)imidazolium ligand. The catalyst was thoroughly characterized using various analytical techniques. The Pd-NHC@Eu-BCI catalyst exhibited excellent catalytic activity in the Suzuki-Miyaura cross-coupling reaction. It could be easily recovered from the reaction mixture and maintained its catalytic activity and structure even after five cycles.
Article
Chemistry, Organic
Giorgio Rizzo, Gianluigi Albano, Teresa Sibillano, Cinzia Giannini, Roberta Musio, Fiorenzo G. Omenetto, Gianluca M. Farinola
Summary: This paper reports the application of a silk fibroin-supported Palladium catalyst (Pd/SF) in Suzuki-Miyaura and Ullmann coupling reactions of aryl chlorides. The existence of catalytic pockets where monoatomic palladium species can form stable complexes with SF is hypothesized and supported by experimental analysis. The size of the catalytic pocket of Pd/SF is estimated to be approximately 15 angstroms using computational modeling.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Eskedar Tessema, Vijayanath Elakkat, Chiao-Fan Chiu, Zong-Lin Tsai, Ka Long Chan, Chia-Rui Shen, Han-Chang Su, Norman Lu
Summary: The study synthesized Pd complexes and conducted recycling experiments in arylations, showing good catalytic recycling results under specific conditions.
Review
Chemistry, Physical
Gianluigi Albano, Antonella Petri, Laura Antonella Aronica
Summary: In recent years, there has been extensive research on immobilizing palladium nanoparticles on solid supports for the preparation of active and stable catalytic systems. Compared to inorganic materials, naturally occurring organic solids are more cost-effective and readily available. This review focuses on the application of metal catalysts supported by natural biomaterials in C-C bond formation reactions, specifically Mizoroki-Heck, Suzuki-Miyaura, and Sonogashira reactions. Different types of organic matrices, such as cellulose, starch, pectin, agarose, chitosan, as well as proteins and enzymes, are discussed, highlighting the heterogeneous nature and recyclability of each catalyst.
Article
Polymer Science
Haniyeh Daneshafruz, Hossein Barani, Hassan Sheibani
Summary: The study utilizes graphene oxide as a stable support for palladium nanoparticles, resulting in a heterogeneous nanocatalyst. The nanocatalyst demonstrates excellent catalytic efficiency through various characterization techniques. It is efficient, cost-effective, and environmentally friendly, maintaining its catalytic activity after multiple uses.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2022)
Article
Chemistry, Applied
Hassan Eslahi, Ali Reza Sardarian, Mohsen Esmaeilpour
Summary: A novel magnetic and heterogeneous palladium-based catalyst was synthesized and fully characterized, showing high activity in cross-coupling reactions. The catalyst, stabilized by glucosamine, demonstrated excellent recyclability for consecutive reaction cycles without significant reduction in catalytic activity.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
Article
Multidisciplinary Sciences
Lara E. Zetzsche, Jessica A. Yazarians, Suman Chakrabarty, Meagan E. Hinze, Lauren A. M. Murray, April L. Lukowski, Leo A. Joyce, Alison R. H. Narayan
Summary: This study demonstrates the use of cytochrome P450 enzymes for biocatalytic cross-coupling reactions, enabling the formation of sterically hindered biaryl bonds through oxidative C-C bond formation. By engineering the substrate and atroposelectivity of the P450 enzyme, a highly efficient and selective process has been developed.
Article
Chemistry, Organic
Tomohiro Yasukawa, Zhiyuan Zhu, Yasuhiro Yamashita, Shu Kobayashi
Summary: A ligand-free approach using polysilane/alumina-supported palladium nanoparticles has been developed for carbonylative Suzuki-Miyaura coupling reactions to synthesize diaryl ketones. This method shows high yields and selectivities even with low catalyst loading under atmospheric pressure of CO gas. The immobilized palladium nanoparticles can be easily recovered by filtration and maintain catalytic activity for several runs.
Article
Chemistry, Applied
Yahao Dong, Jiajun Bi, Shujun Ming, Shoute Zhang, Dajian Zhu, Di Meng, Tao Li
Summary: Chitosan-based OCMCS-SB-Pd(II) catalyst with excellent stability and reactivity was developed and evaluated for Suzuki reactions. Reusability experiments showed consistent activity over multiple cycles. This bio-based system presents a promising approach for utilizing biopolymers in organic transformations.
CARBOHYDRATE POLYMERS
(2021)
Review
Chemistry, Multidisciplinary
Fatemeh Mohajer, Majid M. Heravi, Vahideh Zadsirjan, Nargess Poormohammad
Summary: The Sonogashira reaction is a key cross-coupling reaction in organic synthesis, forming a C-C bond between a vinyl or aryl halide and a terminal alkyne. While traditionally requiring copper and phosphines or amines as co-catalysts and bases, recent developments have enabled the reaction to proceed without these components. This advancement could promote the principles of green chemistry and enhance the economic feasibility of the reaction.
Article
Chemistry, Applied
Mingyang Gao, Jiamin Wang, Weixiang Shang, Yuchao Chai, Weili Dai, Guangjun Wu, Naijia Guan, Landong Li
Summary: Suzuki-Miyaura cross-coupling reaction is a powerful method to construct carbon-carbon bonds and is widely used in the synthesis of functional organic compounds. In this study, zeolite-encased Pd particles (Pd@MFI) were successfully prepared and investigated as promising heterogeneous catalysts for the Suzuki-Miyaura cross-coupling reaction. The Pd@MFI catalysts showed high activity, with dispersed Pd particles efficiently stabilized within the MFI zeolite matrix. The presence of basic sites adjacent to Pd sites was crucial for achieving high catalytic activity.
Article
Chemistry, Organic
Guofu Zhang, Shasha Li, Jie Lei, Guihua Zhang, Xiaoqiang Xie, Chengrong Ding, Renhua Liu
Article
Chemistry, Multidisciplinary
Yong Wang, Xin Wen, Xin Cui, Lukasz Wojtas, X. Peter Zhang
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2017)
Article
Chemistry, Multidisciplinary
Yong Wang, Xin Wen, Xin Cui, X. Peter Zhang
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Article
Chemistry, Multidisciplinary
Xin Wen, Yong Wang, X. Peter Zhang
Article
Chemistry, Physical
Guofu Zhang, Jianfei Zhu, Lidi Xuan, Chengrong Ding
Article
Chemistry, Multidisciplinary
Xing-Wang Han, Olafs Daugulis, Maurice Brookhart
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
Article
Chemistry, Organic
Guofu Zhang, Jing Wang, Chenfei Guan, Yiyong Zhao, Chengrong Ding
Summary: The synthesis of aryl phosphonates via nickel and palladium-catalyzed cross-coupling of aryl fluorosulfonates and phosphites is efficient and versatile, with good to excellent yields under mild conditions. This method can also directly convert phenols to aryl phosphonates, enhancing synthetic efficiency.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Xing-Wang Han, Olafs Daugulis, Maurice Brookhart
Summary: The end-functionalized poly(norbornenes) and poly(ethylidenenorbornenes) were prepared using the palladium catalyst B-t(3) PPdMeCl/NaBArf in combination with chain transfer agents (CTAs) 4-penten-l-ol and 10-undecenal, resulting in polymers end-capped with -OH and -CHO groups in high yields. These polymers with precise M-n values and narrow molecular weight distributions were accessed via living polymerizations with the monomer completely consumed, demonstrating the utility of aldehyde-functionalized polymers in applications like coupling to dye molecules and synthesizing ambiphilic diblock copolymers.
Article
Chemistry, Multidisciplinary
Guofu Zhang, Chenfei Guan, Yiyong Zhao, Huihui Miao, Chengrong Ding
Summary: This study describes the activation of the traditionally stable -SO2F group using a novel partner in the Suzuki-Miyaura coupling reaction. The catalytic system of Pd(OAc)(2) and Ruphos ligands achieved good yields and broad functional group compatibility. The approach's synthetic utility was further highlighted by the sequential synthesis of non-symmetric terphenyls and the gram grade process.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Organic
Guofu Zhang, Huihui Miao, Chenfei Guan, Chengrong Ding
Summary: The direct transformation of aryl carboxylic acids to aryl nitriles has been achieved through palladium-catalyzed decarbonylative cyanation without the use of a base. Successful analysis of the decarbonylative cyanation of drug molecules and gram-scale reactions validates the practicality and operability of this method.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Analytical
Shousong Jin, Mengyi Cao, Qiancheng Qian, Guo Zhang, Yaliang Wang
Summary: This paper proposes an improved grey wolf-optimized support vector regression (IGWO-SVR) method for predicting rotation error, which addresses the limitations of existing methods in terms of time consumption and calculation accuracy. The IGWO-SVR method outperforms other prediction methods, such as BP neural networks and SVR models optimized by particle swarm algorithm and grey wolf algorithm, in terms of parameter optimization and prediction performance. The results demonstrate that the IGWO-SVR model meets the requirements of production beat and product quality with a mean squared error of 0.026, running time of 7.843 seconds, and maximum relative error of 13.5%. Thus, the IGWO-SVR method can effectively improve product quality and reduce rework rate and cost in the rotate vector (RV) reducer parts-matching model.
Review
Chemistry, Organic
Cui Yin, Zhang Guofu, Ding Chengrong
Summary: This article systematically summarizes the development and mechanism of Lossen rearrangement, as well as discusses its future research direction and application prospects.
CHINESE JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Xing-Wang Han, Tao Zhang, Wei-Wei Yao, Hao Chen, Mengchun Ye
Summary: A redox-neutral coupling of simple 1,3-dienes and aldehydes via nickel and Bronsted acid dual catalysis provides a highly atom-economical and by-product-free route to various dienols, with up to 94% yield and up to 50:1 EE/EZ ratio. The use of 2-isopropoxyphenol as a Bronsted acid co-catalyst was critical to the reactivity and selectivity.
Article
Chemistry, Organic
Guofu Zhang, Qiankun Fan, Yiyong Zhao, Huimin Wang, Chengrong Ding
Summary: This method has been developed to convert structurally diverse sulfonyl hydrazides into thiosulfonates in the presence of Rongalite, featuring transition-metal-free conditions, operational simplicity, and readily available reagents. It is the first example of using a reductant to assist in the synthesis of thiosulfonates. Mechanistic studies suggest that this transformation likely proceeds via a reducing-coupling pathway.
Article
Chemistry, Multidisciplinary
Yiyong Zhao, Junjie Wei, Shuting Ge, Guofu Zhang, Chengrong Ding
Article
Chemistry, Multidisciplinary
Xuemei Liu, Chaonan Cui, Shuoshuo Wei, Jinyu Han, Xinli Zhu, Qingfeng Ge, Hua Wang
Summary: This study presents a new strategy for designing efficient photocatalysts that can convert CO2 into hydrocarbons by utilizing synergistic catalytic sites. The findings provide a solution for the selective photocatalytic reduction of CO2 to CH4.
Article
Chemistry, Multidisciplinary
Chengxian Hu, Dan Wang, Lu Wang, Ying Fu, Zhengyin Du
Summary: A novel one-pot, three-component reaction conducted under electrochemical conditions was studied. The reaction involved 2-aminothiophenols, aldehydes, and malononitrile, using TBABF4 as an electrolyte and CuI as a catalyst. The proposed reaction mechanism suggested that CuI served as an electron relay. This method offers simplified operation, high atom economy, and mild reaction conditions.
Article
Chemistry, Multidisciplinary
Zhi Yang, Yu Chen, Linxi Wan, Yuxiao Li, Dan Chen, Jianlin Tao, Pei Tang, Fen-Er Chen
Summary: A highly enantioselective method for the complete hydrogenation of pyrimidinium salts using Ir/(S,S)-f-Binaphane complex as the catalyst was developed. This method provides easy access to fully saturated chiral hexahydropyrimidines, which are prevalent in many bioactive molecules. The reactions exhibit high yields and enantioselectivities under mild reaction conditions without additives. Successful application of this methodology in a continuous flow fashion further extends its practical utility.
Article
Chemistry, Multidisciplinary
Tina Jeoh, Jennifer Danger Nill, Wujun Zhao, Sankar Raju Narayanasamy, Liang Chen, Hoi-Ying N. Holman
Summary: In this study, the enzymatic hydrolysis of cellulose was investigated using real-time infrared spectromicroscopy. The spatial heterogeneity of cellulose was found to impact the hydrolysis kinetics. Hydration affected cellulose ordering, and Cel7A preferentially removed less extensively hydrogen bonded cellulose.
Article
Chemistry, Multidisciplinary
Tiphaine Richard, Walid Abdallah, Xavier Trivelli, Mathieu Sauthier, Clement Dumont
Summary: An effective method of grafting functionalities onto lignin based on glycerol carbonate has been developed using an efficient nickel-catalysed telomerisation reaction. This method allows lignin to have new reactive functions and reduces the glass transition temperatures of modified lignins, thereby expanding the application range of lignin-based resins.
Article
Chemistry, Multidisciplinary
Jing Qi, Xiyan Wang, Gan Wang, Srinivas Reddy Dubbaka, Patrick ONeill, Hwee Ting Ang, Jie Wu
Summary: This study presents a green and environmentally friendly approach for the synthesis of imides using electrocatalytic oxidation with H2O as the oxygen source. The method eliminates the need for toxic or expensive oxidants and achieves high yields under mild reaction conditions. It shows broad substrate compatibility and potential for industrial applications.
Article
Chemistry, Multidisciplinary
Babasaheb Sopan Gore, Lin-Wei Pan, Jun-Hao Lin, Yi-Chi Luo, Jeh-Jeng Wang
Summary: Here, we report a visible light-promoted intramolecular radical cascade reaction for the construction of fluorenol and naphthalene-fused cyclopropyl carbaldehyde derivatives. This method offers mild reaction conditions, a broad substrate scope, excellent step efficiency, and scalability, without the need for external chemical oxidants. The novelty of this protocol was demonstrated by synthesizing chrysene analogs and performing late-stage functionalizations.
Article
Chemistry, Multidisciplinary
Juho Antti Sirvio, Idamaria Romakkaniemi, Juha Ahola, Svitlana Filonenko, Juha P. Heiskanen, Ari Ammala
Summary: This article discusses the method of using supramolecular interaction between an aromatic hydrogen bond donor and lignin to achieve rapid delignification of softwood at low temperatures.
Article
Chemistry, Multidisciplinary
Yunyan Meng, Chunxiang Pan, Na Liu, Hongjiang Li, Zixiu Liu, Yao Deng, Zixiang Wei, Jianbin Xu, Baomin Fan
Summary: A novel visible light-driven synthesis method for 2,3-diamines has been developed, which has mild conditions, avoids the use of metal reagents, and can synthesize diamines and diols in one pot.
Article
Chemistry, Multidisciplinary
Mingqing Huang, Haiyang Huang, Mengyao You, Xinxin Zhang, Longgen Sun, Chao Chen, Zhichao Mei, Ruchun Yang, Qiang Xiao
Summary: A direct air-oxidized strategy for the synthesis of benzo[b]phosphole oxides was developed in this study. Arylphosphine oxides were transformed into phosphinoyl radicals, which were further combined with various alkynes to achieve the desired products. DFT calculations revealed the mechanism of phosphinoyl radical formation.
Article
Chemistry, Multidisciplinary
Anwei Wang, Jiayin Huang, Chunsheng Zhao, Yu Fan, Junfeng Qian, Qun Chen, Mingyang He, Weiyou Zhou
Summary: This study demonstrates an innovative strategy for the aerobic oxidation of C(sp(3))-H bonds using gamma-valerolactone. By optimizing the reaction conditions and utilizing specific catalysts, efficient oxidation of C(sp(3))-H bonds is achieved with good chemoselectivity in certain cases.
Article
Chemistry, Multidisciplinary
Shun Li, Likai Tong, Zhijian Peng, Bo Zhang, Xiuli Fu
Summary: Sulfide compounds show promise as electrocatalysts for water splitting, but their performance is limited by factors such as limited active sites and hindered substance transport. This study successfully prepared a high-entropy sulfide (ZnCoMnFeAlMg)(9)S-8, which reduced grain size and increased specific surface area, enabling the realization of a dual-functional catalyst with multiple catalytic sites. High entropy also modulated the electronic properties of sulfides, reducing the potential energy barrier for hydrolysis. This research introduces a new approach for functionalizing high entropy nanomaterials and improves the performance of water splitting catalysts.
