Results 191 to 200 of about 95,231 (345)

A Purification‐Free Strategy for the Electrochemical Oxidation of the Primary Hydroxy Group in Glycopyranosides

ChemElectroChem, EarlyView.
A straightforward protocol for the electrochemical oxidation of the primary hydroxy group in glycopyranosides is presented. It uses aqueous ammonia as a base and electrolyte, reticulated vitreous carbon (RVC) electrodes, and TEMPO as a mediator. The ammonium salts of the corresponding uronic acids are obtained in excellent yield upon evaporation of the
Marios Kidonakis, Ruben L. H. Andringa, Imke M. A. Bartels, Martin D. Witte, Sebastian B. Beil, Adriaan J. Minnaard   +5 more
wiley   +1 more source

Designs and Materials of Electrodes for Electrochemical Sensors

ChemElectroChem, EarlyView.
Nowadays, electrochemical sensors and biosensors play a crucial role in modern life. This work highlights the importance of electrode material selection and chip design in optimizing sensor performance. It provides a practical guide for choosing suitable materials and structural configurations tailored to specific sensing applications, aiming to ...
Pierre J. Obeid, Nouha Sari‐Chmayssem, Paolo Yammine, Doris Homsi, Hanna El‐Nakat, Zeinab Matar, Soumaya Hamieh, Diala Koumeir, Ayman Chmayssem   +8 more
wiley   +1 more source

Phytochemical Profile and Analgesic Properties of Chicory Root Extract in the Hot-Plate Test in Mice. [PDF]

Int J Mol Sci
Duda Ł, Pasieka ZW, Olszewska MA, Rutkowska M, Budryn G, Jaśkiewicz A, Kłosińska B, Czajkowska K, Kłosiński KK.   +8 more
europepmc   +1 more source

Indole Synthesis via Allenyl Ester; Enantioselective Total Synthesis of Geissoschizoline

ChemistryEurope, EarlyView.
An indole synthesis via an allenyl ester intermediate at ambient temperature has been developed. The mild reaction conditions allow the use of a broad range of substrates. Notably, the utility of this approach is demonstrated through the asymmetric total synthesis of geissoschizoline, a Strychnos‐type monoterpenoid indole alkaloid.
Sohsuke Moriue, Honami Nishioka, Yuto Fukuda, Hiromitsu Takayama, Mariko Kitajima, Hayato Ishikawa   +5 more
wiley   +1 more source

Synthesis of Tricyclic and Tetracyclic Lactone Derivatives of Thieno[2,3-<i>b</i>]pyrazine or Thieno[2,3-<i>b</i>]quinoline: Preliminary Antitumor and Antiparasitic Activity Evaluation. [PDF]

Molecules
Martins MF, Ribeiro F, Borges A, Calhelha RC, Santarém N, Cordeiro-da-Silva A, Queiroz MRP.   +6 more
europepmc   +1 more source

Oral, subcutaneous and intratracheal administration of carcinogenic lactones and related substances: the intratracheal administration of cigarette tar in the rat.

, 1966
F. Dickens, Helen Jones, H. B. Waynforth
openalex   +2 more sources

Lactones of the fruit ofArctium leiospermum [PDF]

, 1967
I. A. Kharlamov, R. L. Khazanovich, Kh. Kh. Khalmatov   +2 more
openalex   +1 more source

Advances in Enaminomaleimides Chemistry: Synthesis, Chemical Applications, and Perspectives

ChemistryEurope, EarlyView.
Enaminomaleimides are versatile building blocks for the construction of functionalized heterocycles. Their unique nucleophilic character, contrasting with the classical electrophilic nature of maleimides, enables diverse synthetic applications, showing promising potential in both materials science and medicinal chemistry.
Adrián López‐Francés, Birane Diop, Xingyu Jiang, Jean Rodriguez, Muriel Amatore, Thierry Constantieux   +5 more
wiley   +1 more source

Analysis of triacylglycerol and phospholipid sn‐positional isomers by liquid chromatographic and mass spectrometric methodologies

Mass Spectrometry Reviews, EarlyView., 2023
Abstract Analysis of triacylglycerol (TG) and phospholipid sn‐positional isomers can be divided into two main categories: (a) direct separation by chromatography or other means such as ion mobility mass spectrometry and (b) quantification of regioisomer ratios by structurally informative fragment ions with mass spectrometric methods.
Mikael Fabritius, Baoru Yang
wiley   +1 more source

Decoding Guaianolide Biosynthesis: Synthetic Insights into Pseudoguaianolides and Seco-Guaianolides. [PDF]

Org Lett
Kourgiantaki M, Zografos AL.
europepmc   +1 more source