Article
Chemistry, Multidisciplinary
Charles O. Oseghale, Oluwatayo Racheal Onisuru, Dele Peter Fapojuwo, Batsile M. Mogudi, Pule Petrus Molokoane, Nomathamsanqa Prudence Maqunga, Reinout Meijboom
Summary: A novel environmentally friendly green chemical process using a newly developed catalyst was reported, minimizing waste and hazards associated with conventional organic acids and molecular gases. The reaction procedure is facile and milder, achieving moderate to high yields without the need for acid co-catalysts or anhydrides for CO release. The catalyst reusability through scalable, safer, and practical reactions suggests a potential novel method for synthesizing carboxylic acids, amides, and esters.
Article
Chemistry, Multidisciplinary
Yuvraj A. Kolekar, Bhalchandra M. Bhanage
Summary: In this study, Pd/C-catalyzed oxidative aminocarbonylation and alkoxycarbonylation of unactivated aryl hydrazines were reported. This protocol provides a promising, simple, and effective approach for preparing esters and tertiary amides using environmentally benign solvent and recyclable catalyst.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Mingming Huang, Man Tang, Jiefeng Hu, Stephen A. Westcott, Udo Radius, Todd B. Marder
Summary: A Cu-catalysed borylation reaction can achieve high-yield synthesis of arylboronic esters from aryl alkyl sulfones, while selective cleavage of cyclic sulfones can be achieved through Cu-mediated or Cu-free processes to prepare sulfonyl-containing boronate esters.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Organic
Vinothkumar Ganesan, Seokyeong Moon, Sungho Yoon
Summary: A phenanthroline-based porous organic polymer supported heterogeneous Pd catalyst (Pd@Phen-POP) was synthesized by solvent knitting using dichloromethane as a linker source in the presence of Lewis acid AlCl3 catalyst for the Friedel-Crafts reaction. The catalyst effectively catalyzes the alkoxycarbonylation of various substituted aryl iodides with diverse alcohols, producing good to excellent yields. Due to its heterotic nature, the catalyst can be easily separated by simple filtration and recycled.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Organic
Lili Tang, Yanqun Gao, Junjie Chen, Linlin Yang, Bing Xiao, Ge Shen, Yuejun Ouyang, Wei Han
Summary: A highly efficient and ligand-free palladium-catalyzed carbonylation of aryl iodides with alkenylboronic acids has been developed, yielding a variety of chalcones and alpha-branched enones in satisfactory to good yields with good substrate compatibilities under room temperature and ambient CO pressure. The transformation also proceeds well with a substoichiometric amount of base. The strategy has been demonstrated to be a promising late-stage functionalization platform by modifying complex substrates derived from estrone and 3-phenyl-L-alanine.
Article
Chemistry, Multidisciplinary
Arvind Singh Chauhan, Ajay Kumar, Ajay Kumar Sharma, Pralay Das
Summary: A decarbonylation free, polystyrene-supported, Pd (Pd@PS)-catalysed carbonylative esterification of 5-hydroxymethyl furfural (5-HMF) has been developed, showing a broad substrate scope, good yield, and recyclability of the catalyst. The study highlights the important role of polystyrene support in avoiding decarbonylation of 5-HMF.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Jianhua Song, Xiaoping Wang, Lin Xu, Chonghao Chen, Dianhua Liu
Summary: The efficient homogenous catalysis and spontaneous heterogeneous separation of Pd-catalyzed alkoxycarbonylation have been achieved using a rationally designed natural metabolite based acidic deep eutectic solvent (DES) as an acid co-catalyst. This approach improves the catalyst lifespan and operational efficiency.
Article
Chemistry, Physical
Juan C. Caravez, Madison J. Wong, Rahul D. Kavthe, Balaram S. Takale, Bruce H. Lipshutz
Summary: Amides, acids, and thioesters can be easily formed from precursor aryl/heteroaryl halides under micellar catalysis conditions using W(CO)(6) as a carbon monoxide source. Palladium catalysts with ligands are usually loaded at around 0.5 mol%. Higher yields were obtained with iodides compared to bromides. Applications in the pharmaceutical industry and examples from the Merck Informer Library are demonstrated. E Factor calculations and options for recycling the aqueous reaction medium are also presented.
Article
Chemistry, Multidisciplinary
Wei Yang, Fangchao Wang, He Wang, Ding Ding, Shaohua Jiang, Guoying Zhang
Summary: The self-templating method is used to prepare the ZnO@Pd/ZIF-8 core-shell catalyst, which shows excellent catalytic performance in carbonylation reactions. The catalyst exhibits high dispersion of Pd clusters and can be reused multiple times without significant loss in catalytic efficiency.
Article
Chemistry, Multidisciplinary
Matteo Vanni, Marco Bellini, Silvia Borsacchi, Lucia Calucci, Maria Caporali, Stefano Caporali, Francesco d'Acapito, Marco Geppi, Andrea Giaccherini, Andrea Ienco, Gabriele Manca, Antonio Massimiliano Mio, Giuseppe Nicotra, Werner Oberhauser, Manuel Serrano-Ruiz, Martina Banchelli, Francesco Vizza, Maurizio Peruzzini
Summary: This study provides the first complete structural characterization of 2D BP functionalized with rare discrete Pd-2 units, revealing the existence of interlayer Pd-Pd units and an increase in catalytic activity for the hydrogen evolution reaction. Multiple techniques were utilized to study the morphology of Pd-2/BP nanosheets and to uncover the coordination of Pd-2 units to phosphorus atoms in 2D BP. The presence of Pd-2 units was found to enhance the activity of Pd-2/BP as a catalyst for HER in acidic medium.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Organic
Peng Wang, Ji Yang, Kangkang Sun, Helfried Neumann, Matthias Beller
Summary: The direct palladium-catalyzed selective carbonylative coupling of less reactive aryl chlorides with primary and secondary amines is achieved using a palladium/Xantphos catalyst system and cesium chloride as an additive. This reaction shows high conversion for various aryl chlorides and good functional group compatibility.
ORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Organic
Fengxiang Zhu, Pengpeng Yin, Pengbo Zhang
Summary: A convenient four-component reaction has been developed to directly transform aryl iodides with alkyl halides into aromatic esters and diesters via palladium-catalyzed carbonylation with water as solvent. The method exhibits moderate to good yields and broad functional group tolerance.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Fu-Peng Wu, Yang Yuan, Jiawang Liu, Xiao-Feng Wu
Summary: An unprecedented and challenging defluorinative carbonylation reaction was achieved with the first example of defluorinative carbonylative coupling established using a Pd/Cu cooperative catalyst system. This methodology, using gem-difluoroalkenes and aryl iodides as substrates, provides flexible and facile access to privileged alpha-fluorochalcones under mild reaction conditions in moderate-to-excellent yields. Mechanistic studies demonstrated that transmetalation between palladium and copper intermediates is a crucial step in the catalytic cycle.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Multidisciplinary Sciences
Dingyi Wang, Mingjie Li, Chengdong Shuang, Yong Liang, Yue Zhao, Minyan Wang, Zhuangzhi Shi
Summary: The authors report a method that appends arenes to arylphosphines via rhodium-catalyzed P(III)-directed ortho C-H activation, enabling one-fold, two-fold, and three-fold direct arylation of these compounds. This method provides a solution to the challenges associated with the modular preparation of biaryl monophosphines.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Xiao-Chao Chen, Tian Lan, Jian Zhu, Sibin Ying, Guang-Hui Shi, Kai -Chun Zhao, Lin Guo, Yong Lu, Ye Liu
Summary: In this study, the tripodal phosphine L1 was used to control the activity, regioselectivity, and stability of the Pd-catalyst in the synthesis of linear amides. The unique characteristics of L1, such as its steric bulkiness, switching-coordination mode, and robustness against moisture and oxygen, contributed to the high activity, good regioselectivity, and excellent stability of the Pd-catalyst.
JOURNAL OF CATALYSIS
(2023)
Article
Chemistry, Physical
Jordi Colavida, Jose A. Lleberia, Antoni Salom-Catala, Aitor Gual, Ana Collado, Ennio Zangrando, Josep M. Ricart, Cyril Godard, Carmen Claver, Jorge J. Carbo, Sergio Castillon
Article
Chemistry, Physical
Myriam Y. Souleymanou, Fatima El-Ouahabi, Anna M. Masdeu-Bulto, Cyril Godard
Summary: New pyrene-tagged imidazolium salts and their corresponding carboxylates were synthesized and tested as organocatalysts in the cycloaddition of CO2 with epoxides. The best performing organocatalyst was immobilised onto carbon materials via pi-pi stacking interactions, showing activity and recoverability in the cycloaddition reaction. Despite a loss of activity, the catalyst heterogenised onto reduced graphene oxide was recycled several times and used for the transformation of various epoxides under mild conditions.
Article
Chemistry, Inorganic & Nuclear
Bianca K. Munoz, Monica Viciano, Cyril Godard, Sergio Castillon, Monica Garcia-Ruiz, Ma Dolores Blanco Gonzalez, Carmen Claver
Summary: The paper discusses the use of metal complexes as catalysts in the synthesis of propylene carbonate from carbon dioxide and propylene oxide. Iron and manganese complexes showed significantly higher activities compared to new cobalt complexes. By optimizing the conditions, a TOF of 1600 h-1 was achieved with the manganese (II) complex 2.
INORGANICA CHIMICA ACTA
(2021)
Article
Chemistry, Inorganic & Nuclear
Daniel Sanchez-Resa, Jorge A. Delgado, Maria Dolores Fernandez-Martinez, Chloe Didelot, Aimery De Mallmann, Kai C. Szeto, Mostafa Taoufik, Carmen Claver, Cyril Godard
Summary: In this study, Pd, Cu, and PdCu nanocatalysts stabilized by triphenylphosphine were prepared and supported on carbon nanotubes or phosphorus functionalized silica. The catalysts exhibited differences in reactivity in the semi-hydrogenation of alkynes, which could be correlated with the size and composition of the metallic nanoparticles and the nature of the support. Carbon-supported catalysts generally showed higher activities than silica-supported catalysts, with the bimetallic PdCu/CNTs catalyst being the most selective for alkyl substituted alkynes. This catalyst also showed good recyclability without loss of activity or selectivity.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Editorial Material
Chemistry, Inorganic & Nuclear
Cyril Godard, Carmen Claver, Ana C. Albeniz
Summary: Supported catalysts offer both the activity of molecular catalysts and the convenience and reusability of catalysts in a difference phase. With continuous solutions to common problems such as leaching, supported catalysts are becoming increasingly viable for applied research.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Review
Chemistry, Inorganic & Nuclear
Anna M. Masdeu-Bulto, Mar Reguero, Carmen Claver
Summary: Transformation of CO2 into consumer products is an alternative method to reduce global warming in addition to decreasing CO2 production. Photocatalytic route is an interesting way to convert CO2 into CO. Understanding the reaction mechanism is crucial for designing more efficient catalytic systems.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
M. Dolores Fernandez-Martinez, Cyril Godard
Summary: A simple procedure was used to synthesize two series of ligand-capped supported Pd nanoparticles catalysts, which were tested in formate synthesis. Among these series, PPh3 showed the most appropriate stabilizing ligand, while TiO2 was the most efficient support for these catalysts. The hydrogenation of CO2 was conducted under mild reaction conditions (1.8 MPa CO2, 1.8 MPa H-2, 60 degrees C) using water as a solvent and a base, resulting in excellent selectivity towards formates with a TON of 1032 (TOF of 69 h(-1), [HCOOK]=1.1 mol/l).
Article
Chemistry, Physical
Monica Viciano, Bianca K. Munoz, Ennio Zangrando, Cyril Godard, Sergio Castillon, Ma Dolores Blanco Gonzalez, Monica Garcia-Ruiz, Carmen Claver
Summary: A series of novel ONO ligands with an ionic pendant-armed were successfully synthesized and coordinated to cobalt and manganese precursors. Among these, the manganese complex showed the best catalytic activity towards the formation of propylene carbonate.
Article
Chemistry, Inorganic & Nuclear
Francisco Martinez-Espinar, Antoni Salom-Catala, Emma Breso-Femenia, Carmen Claver, Francesca Baletto, Josep M. Ricart, Bruno Chaudret, Jorge J. Carbo, Cyril Godard, Sergio Castillon
Summary: Ru and Rh nanoparticles catalyze the selective H/D exchange in phosphines using D2 as the deuterium source. The position of the deuterium incorporation is determined by the structure of the P-based substrates, while activity depends on the nature of the metal, the properties of the stabilizing agents, and the type of the substituent on phosphorus. The appropriate catalyst can thus be selected either for the exclusive H/D exchange in aromatic rings or also for alkyl substituents.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Roger Miro, Hilmar Guzman, Cyril Godard, Aitor Gual, Federica Zammillo, Thomas J. S. Schubert, Boyan Iliev, Angelica Chiodoni, Simelys Hernandez, Miriam Diaz de los Bernardos
Summary: Photoelectrochemical carbon dioxide reduction was successfully performed at ambient temperature and pressure using molecular chromophores and catalyst assemblies on CuGaO2-based electrodes in an ionic liquid organic solution. A series of molecular and supramolecular hybrid photocathodes were prepared by a simple and versatile methodology. The most promising conditions for CO2 reduction were determined and the results showed that the presence of the ionic liquid enhanced the conversion of CO2 to formic acid while suppressing hydrogen production. Anchoring supramolecular complexes on semiconductor photoelectrocatalysts boosted both carrier transport and catalytic activity, achieving a high faradaic efficiency of up to 81%.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Roger Miro, Emma Fernandez-Llamazares, Cyril Godard, Miriam Diaz de los Bernardos, Aitor Gual
Summary: By developing a simple procedure, the electrochemical properties of the iron(III) tetraphenylporphyrin chloride catalyst were significantly improved through a synergistic effect with imidazolium dications in the ionic liquid electrolyte. This enhancement led to improved performance in CO electrochemical production and allowed for various tandem CO2 reduction-carbonylation reactions to be conducted under mild conditions.
CHEMICAL COMMUNICATIONS
(2022)
Review
Chemistry, Multidisciplinary
Carmen Claver, Md Bin Yeamin, Mar Reguero, Anna M. Masdeu-Bulto
Article
Chemistry, Physical
Anton Cunillera, Miriam Diaz de los Bernardos, Martine Urrutigoity, Carmen Claver, Aurora Ruiz, Cyril Godard
CATALYSIS SCIENCE & TECHNOLOGY
(2020)
Review
Chemistry, Multidisciplinary
Dan He, Yawen Li, Fuwen Zhao, Yuze Lin
Summary: High trap density in organic solar cells leads to localized charge carriers and reduced carrier lifetime, limiting device efficiency. This feature article summarizes the recent advances of trap suppression by material design and device engineering.
CHEMICAL COMMUNICATIONS
(2024)
Review
Chemistry, Multidisciplinary
Olivier Monfort, Arshitha Madhusudhan, Martin Motola
Summary: This article presents the advantages of coupling photocatalysis and Fenton-based processes for environmental remediation and discusses their synergy. It critically examines the simultaneous triggering of these two processes and provides insights into research approaches. The study aims to enhance understanding of this complex process and highlight the potential integration of new catalysts in current wastewater treatment technology.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Manideepa Dhar, Chittaranjan Mishra, Avijit Das, Uttam Manna
Summary: An approach of 'polymerization of monomers in its aggregated form' has been introduced to tailor the water wettability of fibrous and porous substrates, achieving hydrophobicity to superhydrophobicity transition, as well as patterned wettability. This facile chemical method provides a durable coating with adjustable and patterned wettability for various potential applications.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Saswat Ranjan Bhoi, Chhanda Debnath, Shikha Gandhi
Summary: In this article, a novel catalytic reaction using Pd(0) and Bronsted acid is reported for the synthesis of biologically important imidazolidinone-fused N-heterocycles through redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes. This atom-economical method is applicable to a wide range of substrates and eliminates the need for leaving groups or oxidizing agents commonly used in traditional allylation reactions.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Longkun Chen, Mingshuai Zhang, Meichen Liu, Zhuoyuan Liu, Yuetong Qiu, Zhilai Zhang, Fuchao Yu, Jiuzhong Huang
Summary: In this study, an efficient Rh(III)-catalyzed selective mono- and dual-C-H bond functionalization/cyclization with iodonium ylide as the sole coupling partner was demonstrated. Fused benzodiazepine skeletons were obtained in excellent yields, providing an improved approach to dual C-H unsymmetrical functionalization.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Alice Kennett, Sven Epple, Gabriella van der Valk, Irene Georgiou, Evelyne Gout, Romain R. Vives, Angela J. Russell
Summary: This study presents the design and synthesis of sulfated disaccharide inhibitors based on IdoA(2S)-GlcNS(6S), which showed potent inhibition of Sulf-2. The results suggest that IdoA(2S)-GlcNS(6S) is the shortest fragment size required for effective inhibition of Sulfs, and a trisulfated disaccharide is identified as the minimal fragment size of heparan sulfate for effective endosulfatase inhibition.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Mauro Garbini, Andrea Brunetti, Riccardo Pedrazzani, Magda Monari, Massimo Marcaccio, Giulio Bertuzzi, Marco Bandini
Summary: The self-adaptability of galvanostatic electrolysis was found to be helpful in a multistage chemo- and diastereoselective electrochemically promoted cyclodimerization of chalcones. Through a series of reductive events, densely functionalized cyclopentanes with five contiguous stereocenters were obtained (25 examples, yields up to 95%, dr values up to >20:1). Further experimental and electrochemical investigations indicated the crucial role of dynamic kinetic resolution of the aldol intermediate in the reaction mechanism.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Dhananjay S. Nipate, Neha Meena, Prakash N. Swami, Krishnan Rangan, Anil Kumar
Summary: In this study, the synthesis of functionalized benzo[a]phenazines and indazolo[2,3-a]quinolines was achieved through Rh(III)-catalyzed oxidative annulation of 2-arylquinoxalines and 2-aryl-2H-indazoles with allyl alcohols. The method showed a wide substrate scope, excellent functional group tolerance, good to high yields of annulated products, and the capability for scaled-up synthesis. A tentative mechanism of the annulation reaction was proposed based on a preliminary mechanistic investigation.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Ruonan Zhang, Abudukadi Tudi, Xia Yang, Xuping Wang, Zhihua Yang, Shujuan Han, Shilie Pan
Summary: A new lead tellurium borate material with a unique fundamental building block [B4O10] was synthesized and found to exhibit high birefringence. The structure-property relationship was discussed using first-principles calculations.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Amresh Kumar Singh, Baishali Thakurta, Anupam Giri, Monalisa Pal
Summary: This study introduces three key concepts for the quick synthesis of large-scale high-quality 2D materials films and their utilization in device fabrication.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Reina Hagiwara, Shun Nishimura, Kosuke Okeyoshi
Summary: A copolymer-conjugated nanocatalytic system has been developed to improve electron transfer and enhance photoinduced H2 generation.
CHEMICAL COMMUNICATIONS
(2024)
