Article
Chemistry, Multidisciplinary
Yuen Wai Lui, Bun Chan, Matthew Y. Lui
Summary: Dimethyl sulfide was utilized as an inexpensive and sustainable catalyst for methylations with dimethyl carbonate, resulting in high yields of products with a straightforward workup procedure. Experimental and theoretical methods were used to elucidate the likely mechanisms involving a reactive intermediate.
Article
Chemistry, Applied
Davide Dalla Torre, Mattia Annatelli, Fabio Arico
Summary: Dimethyl isosorbide (DMI) is a bio-based solvent that can replace conventional dipolar media for green purposes. Previous methods for synthesizing DMI involve toxic halogen compounds, while a more sustainable approach is to use dimethyl carbonate (DMC), which is biodegradable and less toxic. This study reports the synthesis of DMI using DMC chemistry promoted by heterogeneous acid catalysts for the first time, optimizing reaction conditions and exploring the reaction mechanisms.
Article
Chemistry, Physical
Xiuru Bi, Nan Yao, Xu Meng, Mingxia Gou, Peiqing Zhao
Summary: MnCO3 was found to be an efficient heterogeneous catalyst for transesterification of alcohols with DMC, giving desired products under mild conditions. MnCO3 calcined at 300 degrees C showed significantly enhanced surface area and abundant weak acid sites, contributing to its superior catalytic performance in the transesterification process.
Article
Chemistry, Applied
Ashutosh Sharma, Khushboo Verma, Sandeep Kaushal, Rahul Badru
Summary: A novel 2-D flakes like Al-BPED MOF has been explored for its catalytic potential in the N-alkylation of amines with dialkyl carbonates. The synthesized Al-BPED MOF showed high efficiency and selectivity in methylating primary and secondary aromatic amines with dimethyl carbonate under optimal conditions.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Nataliya D. Shcherban, Ekaterina Kholkina, Sergii Sergiienko, Andrei V. Kovalevsky, Igor Bezverkhyy, Dmitry Yu. Murzin
Summary: A set of graphitic carbon nitride samples was prepared using a simple experimental procedure and extensively studied. The materials showed high efficiency in carboxymethylation of cinnamyl alcohol and an increase in surface N atomic content resulted in higher selectivity towards the desired carbonate.
Review
Energy & Fuels
Kirtika Kohli, Brajendra K. Sharma, Chandrakant B. Panchal
Summary: This review summarizes the performance of potential catalysts for the synthesis of dimethyl carbonate (DMC) using CO2 as a feedstock. The major challenges in converting CO2 to DMC include low yields, low selectivity, and thermodynamic limitations. The development of novel catalysts is needed to overcome these challenges.
Article
Multidisciplinary Sciences
Qian-Yu Li, Shiyan Cheng, Ziqi Ye, Tao Huang, Fuxing Yang, Yu-Mei Lin, Lei Gong
Summary: This study developed a simplified photochemical system using iron(III) halides as multifunctional reagents and air as a green oxidant to achieve the direct and selective coupling of benzenes with aliphatic hydrocarbons. The method showed high yields and commendable chemo-, site-selectivity, and demonstrated the potential of iron halides in sustainable synthesis.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Organic
Zengmin Li, Yating Wen, Ning Wang, Feng Han, Ying Li, Hongfeng Zhuang, Chengxia Miao
Summary: The study developed a metal-free catalytic system, including recyclable ionic liquids and environmentally friendly solvent, for atom economic organic reactions. The system was capable of efficiently conducting substitution reactions of alcohols and 4-hydroxycoumarins, achieving yields of up to 99%.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Han-Ying Wu, Ye-Yan Qin, Yi-Hong Xiao, Jian-Shan Chen, Runping Ye, Rong Guo, Yuan-Gen Yao
Summary: The acid-base properties of supports have a significant impact on the selectivity and activity of supported catalysts. In this study, a series of Pd-X-UiO-66 (X = -NO2, -NH2, and -CH3) catalysts with different acidity/alkalinity functional groups and encapsulated Pd(II) species were developed and their activities in dimethyl carbonate (DMC) catalysis were investigated. The Pd-NO2-UiO-66 catalyst with acidity functionalization exhibited the best catalytic behavior, with a DMC selectivity of 68% and a CO conversion of 73.4%. The results showed that the -NO2 group not only affected the interaction between X-UiO-66 and Pd(II) active sites, but also played a crucial role in the adsorption and activation of MN and CO, promoting the formation of the COOCH3* intermediate and DMC product.
Article
Chemistry, Physical
Ni Xiong, Yang Li, Rong Zeng
Summary: We present a dual catalytic strategy for the functionalization of aliphatic carboxylic acids using photoinduced iron/copper catalysts. The photoinduced ligand-to-iron charge transfer process generates an unstabilized alkyl radical, which is then utilized by the copper catalyst for coupling reactions to form C-N or C-C bonds. This system enables efficient conversion of a wide range of aliphatic carboxylic acids and has potential applications in drug discovery.
Article
Chemistry, Physical
Ni Xiong, Yang Li, Rong Zeng
Summary: We have developed a photoinduced iron/copper dual-catalytic strategy for the radical decarboxylation functionalization of aliphatic carboxylic acids. By merging iron-catalyzed decarboxylation with copper catalysis, this system allows efficient conversion of a wide range of aliphatic carboxylic acids for various reactions. The strategy has applications in compound library synthesis and the discovery of pharmaceutical agents.
Article
Chemistry, Multidisciplinary
Yin Zhang, Jun Guo, Jiangwei Zhang, Xueying Qiu, Xiaofei Zhang, Jianyu Han, Binhao Zhang, Chang Long, Yanan Shi, Zhongjie Yang, Wenshi Zhao, Zhiyong Tang
Summary: This study presents a versatile and efficient asymmetric cross-coupling reaction between carbonyl radicals and aryl radicals using porous chiral metal-organic frameworks as catalysts under light illumination. The catalysts demonstrate good performance in catalyzing various reactions, including beta- and alpha-carbonyl arylation of saturated aldehydes and ketones. This work opens up new possibilities for the rational design of heterogeneous catalysts for precise synthesis.
Article
Engineering, Chemical
Chao Guo, Fuqiang Wang, Jiafu Xing, Peizhe Cui
Summary: The separation of DMC/methanol/water azeotropic mixtures has been studied using organic solvents and ionic liquids. The interaction mechanisms between the components and the entrainers were explored, and the best separation sequence and process were determined based on energy and economic comparisons. The results showed that the [BMIM][Cl]-based direct extractive distillation process was the most efficient and cost-effective method.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Organic
Marina Perez-Palau, Nil Sanosa, Pedro Romea, Felix Urpi, Rosa Lopez, Enrique Gomez-Bengoa, Merce Font-Bardia
Summary: A new stereoselective alkylation method has been developed using titanium(IV) enolates of chiral N-acyl oxazolidinones with tert-butyl peresters from Ca-branched aliphatic carboxylic acids. The reaction proceeds through the decarboxylation of peresters and formation of alkyl radicals, resulting in alkylated adducts with excellent diastereoselectivity. Theoretical calculations explain the observed reactivity and outstanding stereocontrol, with the resulting compounds easily converted into ligands for asymmetric and catalytic transformations.
Article
Chemistry, Organic
Wenwen Cui, Xufeng Li, Guoju Guo, Xiuyan Song, Jian Lv, Daoshan Yang
Summary: In this study, a copper-catalyzed blue-light-induced free radical ring-opening reaction of sulfonium salts with dichalcogenides was developed. The method utilizes an inexpensive copper catalyst and has a broad substrate scope, allowing for the high-yield synthesis of alkyl chalcogenides. This reaction presents a novel ring-opening model for sulfonium salts, breaking the limitation of only nucleophilic ring-opening reactions to form C-heteroatom and C-C bonds.
Article
Agricultural Engineering
Joana P. C. Pereira, Luuk A. M. van der Wielen, Adrie J. J. Straathof
BIORESOURCE TECHNOLOGY
(2018)
Article
Engineering, Chemical
Shima Saffarionpour, Tessa F. de Jong, Luuk A. M. Van der Wielen, Eric Brouwer, Marcel Ottens
SEPARATION AND PURIFICATION TECHNOLOGY
(2019)
Article
Engineering, Chemical
Shima Saffarionpour, Suk-Ying S. Tam, Luuk A. M. Van der Wielen, Eric Brouwer, Marcel Ottens
SEPARATION AND PURIFICATION TECHNOLOGY
(2019)
Article
Biotechnology & Applied Microbiology
Susana Pedraza-de la Cuesta, Loes Knopper, Luuk A. M. van der Wielen, Maria C. Cuellar
BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
(2019)
Article
Engineering, Chemical
Joana P. C. Pereira, Wouter Overbeek, Noelia Gudino-Reyes, Eduardo Andres-Garcia, Freek Kapteijn, Luuk A. M. van der Wielen, Adrie J. J. Straathof
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2019)
Article
Agricultural Engineering
Bianca Consorti Bussamra, Joana Castro Comes, Sindelia Freitas, Solange Mussatto, Aline Carvalho da Costa, Luuk van der Wielen, Marcel Ottens
BIORESOURCE TECHNOLOGY
(2019)
Review
Biotechnology & Applied Microbiology
Adrie J. J. Straathof, S. Aljoscha Wahl, Kirsten R. Benjamin, Ralf Takors, Nick Wierckx, Henk J. Noorman
TRENDS IN BIOTECHNOLOGY
(2019)
Review
Biochemical Research Methods
Maria C. Cuellar, Adrie J. J. Straathof
CURRENT OPINION IN BIOTECHNOLOGY
(2020)
Article
Biotechnology & Applied Microbiology
Deborah C. Gernat, Renzo Rozenbroek, Eric R. Brouwer, Luuk A. M. van der Wielen, Marcel Ottens
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2020)
Article
Biotechnology & Applied Microbiology
R. M. Da Costa Basto, M. Jimenez, R. F. Mudde, L. A. M. van der Wielen, M. C. Cuellar
FOOD AND BIOPRODUCTS PROCESSING
(2020)
Article
Agricultural Engineering
Clara Fernando-Foncillas, Carlos I. Cabrera-Rodriguez, Francisco Caparros-Salvador, Cristiano Varrone, Adrie J. J. Straathof
Summary: This study aimed to recover a mixture of carboxylates with different carbon chain lengths using a strong anion exchange resin and CO2-expanded methanol for desorption. It was found that medium chain carboxylates hexanoate and heptanoate exhibited better adsorption and desorption properties compared to acetic acid. The presence of inorganic ions like chloride in the sample decreased adsorption affinity, highlighting the potential for effective separation and purification of carboxylic acids.
BIORESOURCE TECHNOLOGY
(2021)
Review
Biotechnology & Applied Microbiology
Marina P. Elisiario, Heleen De Wever, Wouter Van Hecke, Henk Noorman, Adrie J. J. Straathof
Summary: Syngas fermentation for biofuels and chemicals is a promising technology in the biobased economy. Membrane bioreactors show potential in overcoming limitations in gas-to-liquid mass transfer, with parameters like membrane material, module, and flow configuration playing key roles in enhancing performance. Model-based approaches are recommended for optimizing membrane bioreactor performance.
CRITICAL REVIEWS IN BIOTECHNOLOGY
(2022)
Article
Microbiology
Oriol Cabau-Peinado, Adrie J. J. Straathof, Ludovic Jourdin
Summary: The study presents a general framework for modeling microbial kinetics in a MES reactor, linking microbial metabolism to electrochemical reduction through a thermodynamic approach. Simulation results suggest that CO2 dissolved concentration might be limiting existing MES systems, highlighting the importance of the delivery method used.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Engineering, Chemical
Jose M. (Chema) Jimenez-Gutierrez, Rob A. J. Verlinden, Peter C. van der Meer, Luuk A. M. van der Wielen, Adrie J. J. Straathof
Summary: Liquid hot water pretreatment is a promising method for increasing biomass digestibility under moderate operational conditions without chemical additions. Pilot plant trials indicate scalability of this process, with successful upscaling and complete deacetylation of poplar biomass achieved.