Results 41 to 50 of about 134,456 (306)

Evaluation of alternative solvents in common amide coupling reactions : replacement of dichloromethane and N,N-dimethylformamide [PDF]

, 2013
A range of alternative solvents have been evaluated within amidation reactions employing common coupling reagents with a view to identifying suitable replacements for dichloromethane and N,N ...
Abdelmoty, Al-Zoubi, Albericio, Albericio, Alfonsi, Allan J. B. Watson, Antonucci, Arnold, Arnold, Benoiton, Bian, Bode, Carpino, Charville, Constable, Cooper, Coste, Craig Jamieson, Cue, Donna S. MacMillan, El-Faham, El-Faham, El-Faham, Elmore, Escher, Fischbach, Funabashi, Ghosh, Gunanathan, Han, Helen F. Sneddon, Henderson, Humphrey, Ishihara, Ishihara, Jane Murray, Junkers, Junkers, Junkers, Junkers, Junkers, Jursie, Klausner, Li, MacMillan, Maki, Marcelli, Mitchell, Montalbetti, Nielsen, Nordstrøm, Pattabiraman, Perreux, Roughley, Simonovic, Starkov, Subirós-Funosas, Tang, Valeur, Watanabe, Watson, Wissmann   +61 more
core   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

Cryopreservation of Swamp Buffalo Semen in Skim Milk Yolk-based Diluent with Two Different Cryoprotectants

Tropical Animal Science Journal, 2019
The successful of artificial insemination (AI) in buffalo is still low. The quality of frozen semen determines the successful of AI program. Glycerol is widely used for cryopreservation of buffalo semen with unsatisfactory results due to its toxicity and
M. T. Herbowo, R. I. Arifiantini, N. W. K. Karja, R. G. Sianturi   +3 more
doaj   +1 more source

Effects of sulfonation process on thermal behavior and microstructure of sulfonated polysulfone membranes as a material for Proton Exchange Membrane (PEM) [PDF]

, 2004
This paper reports the effect of sulfonation processon thermal behavior and microstrucutre of sulfonated polysulfone membrane. Various degree of sulfonation reactin has been conducted and the sulfonated membranes were characterized by thermal gravimetric
Ismail, A. F., Naim, R., Saidi, H.
core  

NEXAFS spectroscopy and site-specific fragmentation of N -methylformamide, N,N -dimethylformamide, and N,N -dimethylacetamide [PDF]

, 2016
Near-edge X-ray absorption fine-structure (NEXAFS) spectra measured at the C, N, and O K-edges for three molecules containing the amide moiety, N-methylformamide (HCONHCH3), N,Ndimethylformamide (HCON(CH3)2), and N,N-dimethylacetamide (CH3CON(CH3)2 ...
Alagia, Michele, Feifel, Raimund, Richter, Robert, Salén, Peter, SCHIO, LUCA, STRANGES, Stefano, Yatsyna, Vasyl, Zhaunerchyk, Vitali   +7 more
core   +1 more source

Lamotrigine dimethylformamide sesquisolvate

Acta Crystallographica Section E Structure Reports Online, 2006
In the title compound, C9H7N5Cl2·1.5C3H7NO, the asymmetric unit consists of two crystallographically independent lamotrigine [systematic name: 3,5-diamino-6-(2,3-dichloro­phenyl)-1,2,4-triazine] and three dimethyl­formamide mol­ecules. In the crystal structure, N—H⋯N and N—H⋯O hydrogen bonds lead to the formation of R22(8) and R32(8) motifs.
Balasubramanian Sridhar, Krishnan Ravikumar   +1 more
openaire   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

Advanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source

Improved Synthesis of 5-methylbenz(a)anthracene [PDF]

, 1987
A revised synthesis of 5-methylbenz(a)anthracene is reported. It involves only three simple and convenient steps starting from a commercially available compound, and gives a 82% overall yield.
Che, Jia, Yang, Dominic T.C.
core   +2 more sources

Dimethylformamide Impurities as Propylene Polymerization Inhibitor

Polymers, 2023
This research study examined how the use of dimethylformamide (DMF) as an inhibitor affects the propylene polymerization process when using a Ziegler–Natta catalyst. Several experiments were carried out using TiCl4/MgCl2 as a catalyst, aluminum trialkyl as a cocatalyst, and different amounts of DMF. Then, we analyzed how DMF influences other aspects of
Joaquín Hernández-Fernández, Rafael González-Cuello, Rodrigo Ortega-Toro   +2 more
openaire   +4 more sources

Highly Sensitive Electrochemical Biosensor Based on Hairy Particles with Controllable High Enzyme Loading and Activity

Advanced Functional Materials, EarlyView.
For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin, Anila Antony, Hongtao Cai, Antonia Debevc, Ceyda Topal, Anne Linhardt, Alla Synytska, Leonid Ionov   +7 more
wiley   +1 more source