Article
Chemistry, Physical
Masatoshi Mihara, Shuichi Nakao, Takeo Nakai, Takumi Mizuno
Summary: The development of an effective catalytic system for the cycloaddition of carbon dioxide to epoxides is crucial. In this study, a mixture of zinc iodide, metal chlorides, and strong organic bases was found to be a useful catalytic system that works at room temperature and atmospheric pressure. The most efficient combination produced styrene carbonate (95%) and propylene carbonate, showing that this method is a powerful tool for utilizing CO2 in the production of valuable chemicals.
Article
Biochemistry & Molecular Biology
Jose J. Delgado-Marin, Iris Martin-Garcia, David Villalgordo-Hernandez, Francisco Alonso, Enrique Ramos-Fernandez, Javier Narciso
Summary: One potential way to utilize CO2 is to react it with organic epoxides to produce cyclic carbonates. However, no efficient and selective heterogeneous catalyst has been discovered yet. In this study, cobalt and zinc-based zeolitic imidazole frameworks (ZIFs) were explored as catalysts for this reaction. Modified ZIF-8 and ZIF-67 catalysts were prepared and showed excellent catalytic performance in the cycloaddition of CO2 with epichlorohydrin. Notably, these reactions occurred under mild conditions without the need for co-catalysts.
Review
Chemistry, Multidisciplinary
Feng Han, Heng Li, Hongfeng Zhuang, Qin Hou, Qingfeng Yang, Bing Zhang, Chengxia Miao
Summary: The conversion of CO2 to high value-added chemicals is urgent due to the rise in carbon dioxide emissions and its importance as a renewable chlorine source. Developing efficient catalytic systems for the synthesis of cyclic carbonates is crucial for practical applications. The review article discusses the comprehensive developments in catalytic systems, classified into transition metal and transition-metal-free ones, with a focus on single- or multi-component catalytic systems. Transition-metal-free systems mainly involve quaternary ammonium salts or ionic liquids, while multi-component catalytic systems contain noble and nonnoble metals along with quaternary ammonium salts for catalysis. Insights from the intermediates in the mechanisms are presented for designing multifunctional catalysts and developing new transformation strategies.
JOURNAL OF CO2 UTILIZATION
(2021)
Article
Chemistry, Physical
Lin Gong, Ji Sun, Yousong Liu, Guangcheng Yang
Summary: This study demonstrates the efficient use of solar energy to drive CO2 cycloaddition conversion under mild reaction conditions using a Zn single-atom-loaded N-doped carbon catalyst. The catalyst shows high catalytic activity with almost complete CO2 conversion yields, providing unprecedented findings for the future design and application of single-atom catalysts in photoinduced CO2 cycloaddition catalysis or other catalytic reactions.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Angela Mesias-Salazar, Yersica Rios Yepes, Javier Martinez, Rene S. Rojas
Summary: A series of alkyl aluminum adducts supported by benzodiimidazole-diylidene ligands were synthesized and used as catalysts for the efficient formation of cyclic carbonates. Among them, adduct 1 showed the highest efficiency in synthesizing various monosubstituted cyclic carbonates with excellent conversions and yields under specific conditions.
Article
Chemistry, Multidisciplinary
Thitirat Piyawongsiri, Nattiya Laiwattanapaisarn, Arnut Virachotikul, Phongnarin Chumsaeng, Khamphee Phomphrai
Summary: This study reports a potential route for synthesizing cyclic carbonates through the coupling reaction of epoxides with carbon dioxide. The researchers discovered that a complex containing indium metal and tert-butyl substituents exhibited the highest catalytic activity and selectivity under solvent-free conditions.
Article
Chemistry, Inorganic & Nuclear
Luo-Gang Ding, Bing-Jian Yao, Wen-Xiu Wu, Zhi-Gao Yu, Xiao-Yu Wang, Jing-Lan Kan, Yu-Bin Dong
Summary: A porphyrin and imidazolium-ionic liquid-decorated quinoline-linked covalent organic framework (COF-P1-1) was synthesized via a three-component one-pot Povarov reaction, followed by post-synthetic metallization to form a chemically stable and highly selective CO2 adsorbing metallized COF-P1-2 with good visible-light-induced photothermal conversion ability. The presence of Co(II)-porphyrin and imidazolium-IL within COF-P1-2 ensures highly efficient activity for CO2 cycloaddition, with thermal energy derived from visible-light irradiation. This research offers a novel approach for eco-friendly and energy-saving COF-based greenhouse gas disposal.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Wenxiu Liu, Lei Li, Wei Shao, Hui Wang, Yun Dong, Ming Zuo, Jiandang Liu, Hongjun Zhang, Bangjiao Ye, Xiaodong Zhang, Yi Xie
Summary: The cycloaddition of CO2 with epoxides is a promising pathway for CO2 utilization. By designing catalysts with rich active sites for boosting epoxide adsorption and C-O bond cleavage, efficient cyclic carbonate generation can be achieved. In this study, FeOCl nanosheets with Fe-Cl vacancy clusters are used as a model to demonstrate enhanced cyclic carbonate generation through strengthened epoxide adsorption and promoted C-O bond cleavage.
Article
Chemistry, Multidisciplinary
alvaro Farias Arruda da Mata, Nicolas Glanzmann, Pedro Henrique Fazza Stroppa, Felipe Terra Martins, Rafael Pavao das Chagas, Adilson David da Silva, Jorge Luiz Sonego Milani
Summary: In this study, a series of HO-functionalized 1,2,3-triazolic ionic liquids were evaluated as catalysts for cycloaddition reactions involving CO2 and epoxides. The results showed that the synergism between the hydroxyl group and the counter anion is essential for achieving excellent catalytic performance. The optimal reaction conditions led to high conversion rates, even in a scale-up experiment.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Irene Contento, David Hermann Lamparelli, Antonio Buonerba, Alfonso Grassi, Carmine Capacchione
Summary: The newly developed family of chromium complexes can be used for the cycloaddition of epoxides with CO2, showing high activity and selectivity for the synthesis of cyclic carbonates.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Chemistry, Inorganic & Nuclear
Haifang Mao, Manli Guo, Hongqing Fu, Kun Yin, Miaomiao Jin, Chaoyang Wang, Yun Zhao, Zhenbiao Dong, Jibo Liu
Summary: A Ru(III) Schiff base complex catalyst (SalRu) was constructed using a derivative of lignin degradation to efficiently convert CO2 to cyclic carbonates. The SalRu catalyst showed remarkable conversion even at atmospheric pressure of CO2 without co-catalyst, reaching 94% conversion and 99% selectivity at 120 degrees C and 2 MPa CO2 after 8 hours. This study provided direct evidence for the mechanism proposing epoxide activation, ring opening, CO2 insertion, and cyclic carbonate formation, and has important theoretical significance for the utilization of environmental pollutants and energy.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Lamia A. Siddig, Reem H. Alzard, Abdalla S. Abdelhamid, Tholkappiyan Ramachandran, Ha L. Nguyen, Alejandro Perez Paz, Ahmed Alzamly
Summary: In this study, a novel cobalt hydrogen-bonded organic framework material was synthesized through a simple and low-cost method. The material showed high thermal and chemical stabilities and exhibited excellent photocatalytic activity under visible light irradiation. The cycloaddition reaction of CO2 to variable epoxides catalyzed by the material resulted in high yields of corresponding cyclic carbonates.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Chang Qiao, Wangyu Shi, Arianna Brandolese, Jordi Benet-Buchholz, Eduardo C. Escudero-Adan, Arjan W. Kleij
Summary: A new catalytic route has been developed for the coupling of epoxides and CO2 to produce polymerizable six-membered bicyclic carbonates. By utilizing cyclic epoxides with a beta-positioned OH group, structurally diverse bicyclic cyclic carbonates can be obtained with good yields and high selectivity. The difference in reactivity between syn- and anti-configured epoxy alcohols is the key to achieve chemo-selectivity, with the anti-isomer leading to the formation of six-membered ring carbonates in the presence of a binary Al-III aminotriphenolate complex/DIPEA catalyst.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Inorganic & Nuclear
Pooja Rana, Bhawna Kaushik, Rashmi Gaur, Sriparna Dutta, Sneha Yadav, Kanika Sotanki, Bhavya Arora, Ankush Biradar, Manoj B. Gawande, R. K. Sharma
Summary: This work presents a noble metal free heterogeneous photocatalyst that enables direct functionalization of (het)arenes and solvent-free CO2 capture at room temperature and under pressure. The photocatalyst, based on Earth-abundant cobalt(iii), exhibits fascinating properties and shows high efficiency for selective conversions of aryldiazonium salts and carbon dioxide to valuable chemicals.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Applied
Siraprapa Somsri, Mohan Gopalakrishnan, Thanchanok Ratvijitvech, Thanapat Worakul, Panida Surawatanawong, Naoto Kuwamura, Takumi Konno, Bunyarat Rungtaweevoranit, Preeyanuch Sangtrirutnugul
Summary: The utilization of CO2 to produce value-added products is a promising strategy to reduce CO2 emissions. Nitrogen-rich porous polymers were prepared using copper-catalyzed azide-alkyne cycloaddition and Huisgen cycloaddition, exhibiting high copper loading ability and high CO2 selectivity.
REACTIVE & FUNCTIONAL POLYMERS
(2023)
Article
Otorhinolaryngology
Ana Ocana, John J. Aguilera-Correa, Elena Dominguez-Jurado, Francisco C. Perez-Martinez, Ramon Perez-Tanoira, Yaiza Lopez-Carretero, Jesus Masia-Mondejar, Jose Antonio Castro-Osma, Jaime Esteban, Carlos Alonso-Moreno, Milagros Molina-Alarcon, Pedro Segui
Summary: This study evaluated the in vitro antibacterial effects of a p-Cymene-based derivative (SC-19) as an alternative therapeutic compound for patients with otitis externa. The results showed that SC-19 exhibited good antibacterial activity against Staphylococcus aureus, making it a promising treatment option for otitis externa caused by S. aureus.
LARYNGOSCOPE INVESTIGATIVE OTOLARYNGOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Maria P. Caballero, Fernando Carrascosa, Felipe Cruz-Martinez, Jose A. Castro-Osma, Ana M. Rodriguez, Michael North, Agustin Lara-Sanchez, Juan Tejeda
Summary: Novel salts based on 1,3-dibutyl-4-(2-hydroxyphenyl)-1H-imidazolium bromide or iodide have been developed as bifunctional organocatalysts for the cycloaddition reaction of epoxides and isocyanates. The most active catalyst for this process was found to be 1,3-dibutyl-4-(5-fluoro-2-hydroxyphenyl)-1H-imidazolium iodide.
Article
Polymer Science
Marcell N. D. Haslewood, Thomas J. Farmer, Michael North
Summary: Biomass derivable epichlorohydrin can undergo ring-opening copolymerization with succinic or itaconic anhydride to form low molecular weight polyesters, which can be crosslinked to form insoluble resins with complementary functionalities.
JOURNAL OF POLYMER SCIENCE
(2023)
Article
Chemistry, Physical
Yunlong Yang, Yuanlong Guo, Chengtao Gao, Michael North, Jili Yuan, Haibo Xie, Qiang Zheng
Summary: Cellulosic poly(ionic liquid)s ([Cellmim][Br]) were successfully synthesized via the transesterification reaction of cellulose with 1-(2-methoxyacetyl)-3-methyl imidazole bromide IL ([Mmim][Br]). The resulting POF-[Cellmim][Br] materials functioned as efficient catalysts for cycloaddition reactions of epoxides and carbon dioxide. The work provided insights into the cooperative effects of porous properties and nucleophilic anions on the reaction.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Materials Science, Biomaterials
Felipe de la Cruz-Martinez, Roger Bresoli-Obach, Ivan Bravo, Carlos Alonso-Moreno, Daniel Hermida-Merino, Johan Hofkens, Agustin Lara-Sanchez, Jose A. Castro-Osma, Cristina Martin
Summary: Population growth, resource depletion, and toxic chemical production underscore the importance of exploring new smart materials that are inexpensive, biodegradable, and renewable. Metal-free ring-opening copolymerization of biomass carvone-based monomers is considered a sustainable approach to achieve these goals, especially in the production of non-conventional luminescent biopolymers.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Polymer Science
Rafael T. Alarcon, Katie J. Lamb, Eder T. G. Cavalheiro, Michael North, Gilbert Bannach
Summary: Carbon dioxide (CO2) is naturally occurring but its emissions have increased due to human activities and its rising atmospheric concentration is causing global warming. Researchers explored the catalyzed reaction of CO2 with epoxidized vegetable oil to create carbonated oils for new and sustainable monomers. By screening different reaction conditions, they achieved 100% conversion using the aluminum(salen) complex as a catalyst. The resulting carbonated oils were then reacted with amines to produce weldable polyhydroxyurethanes with various properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Immunology
Syong H. Nam-Cha, Elena Dominguez-Jurado, Selena L. Tinoco-Valencia, Ramon Perez-Tanoira, Noelia Morata-Moreno, Rocio Alfaro-Ruiza, Agustin Lara-Sanchez, Jaime Esteban, Rafael Lujan, Carlos Alonso-Moreno, Pedro Segui, Alberto Ocana, Angel Lopez Gonzalez, John J. Aguilera-Correa, Francisco C. Perez-Martinez, Milagros Molina Alarcon
Summary: This study aimed to translate clinical research outcomes based on metallodrugs into clinical practice for the treatment of MRSA. The novel metallodrug 2P-Pt showed antibacterial effect against MRSA and inhibited biofilm formation. These findings suggest that 2P-Pt may be a promising therapeutic alternative for MRSA infections.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Francisca Werlinger, Renato Caprile, Valentino Cardenas-Toledo, Bastian Tarraff, Angela Mesias-Salazar, Rene S. Rojas, Javier Martinez, Oleksandra S. Trofymchuk, Mario E. Flores
Summary: This article discusses the challenge of transforming cooking oils and their waste into polyesters through circular chemistry. The researchers used epoxidized olive oil obtained from cooking olive oil and various cyclic anhydrides as raw materials to prepare new bio-based polyesters. The synthesis of these materials required the use of specific reaction conditions and catalysts. The obtained biopolyesters were characterized using various analytical techniques. The transformation of natural-based compounds, such as olive oil, into high-value products is an innovative and challenging task.
Review
Optics
Javier Martinez, Igor Osorio-Roman, Andres F. Gualdron-Reyes
Summary: The growing demand for faster data transference and communication has led to the development of faster and more efficient communication network-based technologies, such as wireless systems and visible light communication (VLC) processes. The use of light converters, such as phosphor materials, can efficiently convert blue light into different colors for higher bandwidth values and faster data/information transmission. Recent advances in luminescent materials, including polymers, organic molecules, and semiconductor nanocrystals, have improved the photophysical properties and carrier recombination dynamics, offering enhanced VLC process for efficient optical communication applications.
Review
Energy & Fuels
Francisca Werlinger, Camilo Segura, Javier Martinez, Igor Osorio-Roman, Danilo Jara, Seog Joon Yoon, Andres Fabian Gualdron-Reyes
Summary: Photovoltaics are emerging as a promising alternative energy source, utilizing solar energy potential. Different generations of solar devices, such as organic molecules, metal chalcogenides, and halide perovskites, have been developed to improve light absorption capability and electricity production. However, the commercialization of these solar cells is hindered by issues like degradation of the active layer, intrinsic defect sites, and material toxicity. This review highlights current progress in efficient photomaterials for high-performance solar cells and approaches to enhance stability and performance.
Article
Agricultural Engineering
Gu Guo, Yuanlong Guo, Hailiang Sheng, Pengcheng Liu, Lei Dai, Michael North, Lei Deng, Xiaofeng Luo, Haibo Xie
Summary: A series of cellulose grafted alternating cyclic anhydride and epoxide copolyesters were successfully prepared in a novel DBU/DMSO/CO2 cellulose solvent system. The copolymers exhibited perfectly alternating sequence distributions, controlled molecular weights, UV absorption, and antibacterial properties. Therefore, they have potential applications in UV-shielding and antibacterial agent fields.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Chemistry, Inorganic & Nuclear
Marta Navarro, Andres Garces, Luis F. Sanchez-Barba, David Gonzalez-Lizana, Agustin Lara-Sanchez
Summary: The fixation of CO2 into cyclic carbonates is important for the synthesis of organic molecules of industrial interest. In this study, zinc-based complexes with sterically demanding scorpionate ligands were prepared and used as catalysts for CO2 fixation. These complexes, in combination with larger ionic radius-based co-catalysts, showed high activity and selectivity for the conversion of CO2 into cyclic carbonates. The systems developed in this study are sustainable, inexpensive, and environmentally friendly.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Marc Martinez de Sarasa Buchaca, Felipe de la Cruz-Martinez, Luis F. F. Sanchez-Barba, Juan Tejeda, Ana M. M. Rodriguez, Jose A. Castro-Osma, Agustin Lara-Sanchez
Summary: Ring-opening copolymerization reactions of epoxides, carbon dioxide and cyclic esters using bimetallic chloride indium complexes as catalysts were conducted under mild reaction conditions. The catalysts exhibited high catalytic activity and selectivity in the absence of a co-catalyst, leading to the formation of poly(cyclohexene carbonate) (PCHC). Furthermore, polyester-polycarbonate copolymers poly(lactide-co-cyclohexene carbonate) (PLA-co-PCHC) were synthesized via a one-pot one-step route without the use of a co-catalyst. The copolymers showed different thermal properties by adjusting the CO2 pressure and monomer feed.
DALTON TRANSACTIONS
(2023)
