Results 51 to 60 of about 34,597 (238)

Potential Routes for Thermochemical Biorefineries [PDF]

, 2013
This critical review focuses on potential routes for the multi-production of chemicals and fuels in the framework of thermochemical biorefineries. The up-to-date research and development in this field has been limited to BTL/G (biomass-to-liquids/gases ...
Agreda, Baliban, Baliban, Baliban, Baliban, Barclay, Bartholomew, Barthos, Bedia, Beijnum, Bessling, Bhan, Blanchard, Boronat, Boronat, Bournonville, Braca, Bridgwater, Brown, Carotenuto, Carvalho, Chang, Chen, Chen, Chen, Chen, Cherubini, Cheung, Cheung, Clausen, Clausen, Clausen, Cressely, Demirbaş, Dutta, Ehrler, Elia, Elia, Floudas, Françoisse, Gane, Gane, Gane, Gassner, Gassner, Gayubo, Goyal, Halttunen, Halttunen, Hamelinck, Hamelinck, Hargis, Hargis, Haro, Haro, Haro, He, Heyne, Higman, Holmgren, Hong Thuy, Howard, Howard, Hu, Hu, Huang, Huss, Inaba, Inaba, Indarto, Inui, Ishogai, Jenner, Jenner, Jones, Jun, Juran, Juraík, Kapoor, Keil, Kitson, Klingler, Koermer, Kummer, Kvisle, Larson, Le Van, León, Li, Liu, Liu, Maitlis, Marie-Rose, Mascal, Matsumoto, Meerman, Meerman, Meijden, Menon, Merenov, Mokrani, Mol, Moloy, Morschbacker, Ndou, Nefedov, Nefedov, Nowicki, Ogo, Okazaki, Olofsson, Olsbye, Ono, Pallassana, Phillips, Phillips, Prins, Rachmady, Rachmady, Rachmady, Rathke, Rens, Ryashentseva, San, Santacesaria, Santacesaria, Schuster, Semelsberger, Simbeck, Sims, Smith, Spivey, Stiefel, Subramani, Sun, Tabak, Takahara, Thinnes, Tichit, Tijm, Tijmensen, Tock, Tock, Travers, Tret'yakov, Trippe, Tsodikov, Tsuchida, Uhm, Villanueva Perales, Viswanadham, Walker, Wan, Watabane, Wegman, Wehner, Wender, Wender, Winter, Wright, Wyczesany, Xu, Yang, Yaripour, Yin, Zhang, Zhang, Zhang, Zhang, Zhu, Zhu, Zinoviev, Zoeller, Zoeller, Zwart   +174 more
core   +1 more source

Stabilization of Pd Active Sites by Defective NaY Zeolite Framework for Enhanced Stability in Dimethyl Carbonate Synthesis

EcoEnergy, EarlyView.
A tailored‐defect strategy employing sequential high‐temperature calcination and acetylacetone treatment was developed to generate framework defects in NaY zeolite while preventing the formation of strong acid sites. These defects facilitate electron transfer from Pd to the zeolite framework and stabilize the Pd2+ active sites, thereby conferring ...
Chunzheng Wang, Rongyan Mei, Shicheng Yuan, Yida Zhou, Yipu Xu, Xianglong Meng, Longgang Tao, Shutao Xu, Hailing Guo, Svetlana Mintova   +9 more
wiley   +1 more source

Isomerisation versus carbonylative pathways in the hydroxy-carbonylation, methoxy-carbonylation, and amino-carbonylation of N-tosyl-3-pyrroline [PDF]

, 2016
The authors thank the EPSRC for funding, primarily from grant number EP/M003868/1.The reactivity of N-tosyl-3-pyrroline is significantly lower than that of mono-substituted alkenes in Pd catalysed methoxycarbonylation reactions.
Buehl, Michael, Clarke, Matt, Crawford, Luke, Durrani, Jamie, Fuentes García, José Antonio, Leckie, Stuart M.   +5 more
core   +1 more source

1,1‐Disubstituted Vinylbromides: Versatile Building Blocks for the Synthesis of Nitrogen‐Containing Heterocycles

European Journal of Organic Chemistry, EarlyView.
1,1‐Disubstituted vinylbromides are key intermediates for constructing nitrogen‐containing heterocycles. This review provides an overview of the synthetic applications of 1,1‐disubstituted vinylbromides and summarizes recent developments in reaction methodologies, mechanistic insights, and the structural diversity of N‐heterocyclic compounds accessible
Anne Westermeyer, Jun Fang, Chonghuo Liu, Guillaume Lefèvre, Gérard Guillamot, Phannarath Phansavath, Virginie Ratovelomanana‐Vidal   +6 more
wiley   +1 more source

Enhanced Selectivity in 4-Quinolone Formation: A Dual-Base System for Palladium-Catalyzed Carbonylative Cyclization with Fe(CO)₅

Molecules
The use of gaseous CO in Pd-catalyzed carbonylative quinolone synthesis presents challenges related to safety and precise pressure control. In response, a streamlined non-gaseous synthesis of 4-quinolone compounds has been developed.
Meng Guo, Dou Wu, Hongyu Yang, Xiao Zhang, Dong-Xu Xue, Weiqiang Zhang   +5 more
doaj   +1 more source

Diabetic Peripheral Neuropathy: Molecular Staging, Risk Factors, Therapeutics, and Emerging Trends

Med Research, EarlyView.
The heterogeneous landscape of DPN can be unified through a tripartite pathogenic model encompassing progressive stages of metabolic dysregulation, chronic inflammation, and overt neuronal damage. Within this framework, six clinical subtypes were identified, namely, hyperglycemia‐driven, dyslipidemia‐driven, inflammation‐driven, dysvascularity‐driven ...
Xiaofeng Dai, Mingze Tang
wiley   +1 more source

Palladium-Catalyzed Oxidation of β-C(sp3)-H Bonds of Primary Alkylamines through a Rare Four-Membered Palladacycle Intermediate. [PDF]

, 2020
Site-selective functionalizations of C-H bonds are often achieved with a directing group that leads to five- or six-membered metallacyclic intermediates. Analogous reactions that occur through four-membered metallacycles are rare. We report a challenging
Bunescu, Ala, Ernst, Martin, Hartwig, John F, Qiu, Yehao, Su, Bo, Zuend, Stephan J   +5 more
core   +1 more source

Mono- and double carbonylation of aryl iodides with amine nucleophiles in the presence of recyclable palladium catalysts immobilised on a supported dicationic ionic liquid phase [PDF]

, 2017
Silica modified with organic dicationic moieties proved to be an excellent support for palladium catalysts used in the aminocarbonylation of aryl iodides.
D. Srankó, G. Sáfrán, L. Kollár, M. Papp, P. Szabó, R. Skoda-Földes   +5 more
core   +1 more source

Dimethyl‐, Diethyl‐, and Propylene Carbonates: An Emerging Class of Green Solvents for Organic Synthesis

The Chemical Record, EarlyView.
This review highlights recent advances in the use of organic carbonates, dimethyl carbonate (DMC), diethyl carbonate (DEC), and propylene carbonate (PC), as solvents in organic synthesis. Based on over seventy studies from the past 6 years, it shows their application in different organic reaction types, emphasizing their role in safer and more ...
Gabriela T. Quadros, Livia C. L. Valente, Thiago Barcellos, Daniela Hartwig, Laura Abenante, Eder J. Lenardão   +5 more
wiley   +1 more source

Photo‐Promoted Nitrogen‐Centered Radical Mediated Intermolecular Aminative Carbonylation of Tertiary Allyl Alcohols to Access β‐Amino Ketones through (Hetero)Aryl Migration

ChemistryEurope
Carbon monoxide, as a crucial C1 synthon, has been widely used in the difunctionalization of alkenes. Additionally, nitrogen‐centered radicals (NCRs) are also effective intermediates for constructing C−N bonds.
Ming Hou, Yuanrui Wang, Hefei Yang, Jiajun Zhang, Prof. Dr. Xiao‐Feng Wu   +4 more
doaj   +1 more source