Results 81 to 90 of about 1,014,531 (338)

Oxidation of 3- and 4-Methylpyridines on Vanadium-Anatase and Vanadium-Rutile Catalysts

Eurasian Chemico-Technological Journal, 2012
Heterogeneous catalytic vapor-phase oxidation of methylpyridines is "green", the most simple and perspective method for obtaining pyridinecarboxylic acids.
O. K. Yugay, T. P. Mikhailovskaya, D. Kh. Sembaev, P. B. Vorobyev   +3 more
doaj   +1 more source

Research on heterocyclic compounds, Part 40. 2-Phenylimidazo[1,2-a]pyridine-3-carboxylic acid derivatives: synthesis and antiinflammatory activity.

, 1998
A series of 2-phenylimidazo[1,2-a]pyridine-3-carboxylic esters, acids, and amides were synthesized and pharmacologically tested in order to evaluate their antiinflammatory and analgesic activity and their ulcerogenic action on the gastro-intestinal tract.
RIMOLI, MARIA GRAZIA, G. Falcone, FILIPPELLI, Amelia, L. Avallone, M. G. Rimoli, ABIGNENTE DI FRASSELLO, ENRICO, E. Abignente, W. Filippelli, F. Arena, F. ARENARE, A. Di Chiacchio, A. FILIPPELLI   +11 more
core  

Revisiting Securidaca longipedunculata Seed Oil: Applying NMR and Mass Spectroscopy to Confirm the Presence of 2‐Acetyl‐1,3‐Diacyl–sn‐Glycerols and Conjugated Hydroxydienoic Fatty Acids

Journal of the American Oil Chemists' Society, EarlyView.
The manuscript confirms and expands on previous reports concerning the presence of unusual conjugated hydroxydienoic fatty acids and acetyl‐TAG in the seed oil of Securidaca longipedunculata. The location of acetate only at sn‐2 of TAG was conclusively shown by high resolution NMR and hydroxy seed fatty acids are characterized.
Mark A. Smith, Jianfeng Zhu, Jin‐Yue Sun   +2 more
wiley   +1 more source

An Efficient Green Approach for the Synthesis of Fluoroquinolones Using Nano Zirconia Sulfuric Acid as Highly Efficient Recyclable Catalyst in two Forms of Water [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2018
Various antibacterial fluoroquinolone compounds were prepared by the direct amination of 7-halo-6- fluoroquinolone-3-carboxylic acids with a variety of piperazine derivatives and (4aR,7aR)-octahydro-1H-pyrrolo[3,4-b] pyridine using Zirconia Sulfuric Acid
Ahmad Nakhaei, Abolghasem Davoodnia, Sepideh Yadegarian   +2 more
doaj  

Diol Chain‐Length Effects in Adipate and Succinate Polyesters for Thermoplastic Polyurethanes

Journal of Applied Polymer Science, EarlyView.
This study examines 20 aliphatic polyesters as soft segments for thermoplastic polyurethanes (TPU), synthesized from adipic or succinic acid and diols (C2, C3, C4, C5, and C6). A pronounced odd‐even effect shows that even diols crystallize, while odd diols remain amorphous.
Dario Brand, Stephanie Duettmann, Kevin Marschner, Apolline Limouzin, Brigitte Voit   +4 more
wiley   +1 more source

Synthesis of Functionalized Azobiphenyl‐ and Azoterphenyl‐ Ditopic Linkers: Modular Building Blocks for Photoresponsive Smart Materials

ChemistryOpen, 2019
Modular synthesis of structurally diverse functionalized azobiphenyls and azoterphenyls for the realization of optically switchable materials has been described.
Dr. Sylvain Grosjean, Patrick Hodapp, Dr. Zahid Hassan, Prof. Dr. Christof Wöll, Dr. Martin Nieger, Prof. Dr. Stefan Bräse   +5 more
doaj   +1 more source

PERFIL VOLÁTIL DO Coffea arabica E Coffea canephora var. conilon POR SHS-GC-MS E QUIMIOMETRIA [PDF]

Química Nova
The volatile composition of coffee exerts a substantial influence on its quality, as it defines the characteristics of the beverage. However, these compounds are influenced by factors within the coffee production chain, such as botanical origin ...
Marcos Valério Vieira Lyrio, Pedro Henrique Pereira da Cunha, Danieli Grancieri Debona, Bárbara Zani Agnoletti, Roberta Quintino Frinhani, Emanuele Catarina da Silva Oliveira, Paulo Roberto Filgueiras, Lucas Louzada Pereira, Eustáquio Vinicius Ribeiro de Castro   +8 more
doaj   +1 more source

Biotransformation of fluorophenyl pyridine carboxylic acids by the model fungus Cunninghamella elegans

, 2017
1. Fluorine plays a key role in the design of new drugs and recent FDA approvals included two fluorinated drugs, tedizolid phosphate and vorapaxar, both of which contain the fluorophenyl pyridyl moiety. 2.
Mark A. Fox (1483543), Brian Dunne (3120810), Yannick Ortin (1718278), Graham Sandford (1951078), William Palmer-Brown (3120813), Cormac D. Murphy (681908)   +5 more
core   +1 more source

Follicle Stimulating Hormone in Cattle Breeding: Fundamentals, Innovations, and Scope

Animal Research and One Health, EarlyView.
FSH is crucial in cattle reproduction, with exogenous administration enhancing breeding and embryo production. Recombinant FSH offers advantages over pituitary‐extracted variants, including fewer injections, reduced stress, and safer production. These innovations improve breeding efficiency, optimize reproductive outcomes, and contribute to sustainable
Muhammad Shahzad, Hubdar Ali Kolachi, Jesse Oluwaseun Ayantoye, Xiaomeng Zhang, Muhammad Usman Mehmood, Rajilan Hilali Shanga, Pengcheng Wan, Xueming Zhao   +7 more
wiley   +1 more source

Thermodynamic Properties of Three Pyridine Carboxylic Acid Methyl Ester Isomers [PDF]

, 2007
This article discusses the thermodynamic properties of three pyridine carboxylic acid methyl ester ...
Santos, Luís M. N. B. F., Freitas, Vera L. S., Fulem, Michal, Monte, Manuel J. S., Sottomayor, M. J., Silva, Maria D. M. C. Ribeiro da, Acree, William E. (William Eugene)   +6 more
core   +1 more source