Results 141 to 150 of about 25,792 (269)

N-halossacarinas: reagentes úteis (e alternativos) em síntese orgânica

Química Nova, 2006
N-halosaccharins proved to be useful and alternative reagents for diverse organic transformations, such as halogenation of aromatic compounds, benzylic and alpha-carbonylic positions, cohalogenation of alkenes, oxidation of secondary alcohols, etc. Their
Souza Soraia P. L. de, Silva Joaquim F. M. da, Mattos Marcio C. S. de   +2 more
doaj  

Mechanochemical Synthesis of α‐halo Alkylboronic Esters

Advanced Science
α‐halo alkylboronic esters, acting as ambiphilic synthons, play a pivotal role as versatile intermediates in fields like pharmaceutical science and organic chemistry.
Yunyi Zhao, Zekun Yang, Xin Wang, Qinchun Kang, Bobo Wang, Tianle Wu, Hao Lei, Peile Ma, Wenqiang Su, Siyuan Wang, Zhiqiang Wu, Xinsong Huang, Chunying Fan, Xiaofeng Wei   +13 more
doaj   +1 more source

Novel BODIPY Dyes with a Meso-Benzoxadiazole Substituent: Synthesis, Photophysical Studies, and Cytotoxic Activity Under Normoxic and Hypoxic Conditions

Biomedicines
Background/Objectives: Novel boron dipyrromethene derivatives with a heterocyclic, benzoxadiazole substituent were obtained as potential candidates for the photodynamic therapy (PDT) of cancers.
Weronika Porolnik, Natalia Karpinska, Marek Murias, Jaroslaw Piskorz, Malgorzata Kucinska   +4 more
doaj   +1 more source

Piperazine Derivatives: A Privileged Scaffold in Modern Synthesis and Medicinal Chemistry

ChemistryOpen, Volume 15, Issue 1, January 2026.
Piperazine‐based bioactive molecules represent a versatile class of compounds with broad therapeutic potential. Structural modification of the piperazine scaffold governs key structure–activity relationships, enabling antibacterial, antifungal, antitumor, neuroactive, and anti‐inflammatory activities.
Assel Ten, Raushan Koizhaiganova, Dilnaz Bissenbay, Bagila Tursynova, Zhanar Zhaxibayeva, Valentina Yu   +5 more
wiley   +1 more source

Preparation of 5-Ethoxycarbonyl- and 5-Cyano-5,6-dihydro-3,7-diphenyl-4H-diazepines and Their Halogenations

, 1986
Otohiko Tsuge, Kichinosuke Kamata
openalex   +1 more source

Nickel-Catalyzed C-H Halogenation of 8-Aminoquinolines for the Synthesis of C(5) and C(7) Di-halogenated Quinolines [PDF]

, 2017
Wenyan Hao, Yu Yun Wang, Yang Guomin, Yunyun Liu   +3 more
openalex   +1 more source

Brominated Methanesulfonates: Characterization of K[Br3CSO3] ⋅ H2O, K2[Br2C(SO3)2] ⋅ H2O and K3[BrC(SO3)3] ⋅ H2O

ChemistryOpen, Volume 15, Issue 1, January 2026.
The sulfonates of methane can be easily brominated using hypobromite in aqueous solution. The structures of resulting anions [Br3CSO3]−, [Br2C(SO3)2]2−, and [BrC(SO3)3]3− can be analysed for the respective potassium salts. Bromination of phenyl methanesulfonate, C6H5OSO2CH3, with KOBr followed by hydrolytic cleavage of the phenyl ester leads to the ...
Katrin Eppers, Celina Sander, D. van Gerven, Mathias S. Wickleder   +3 more
wiley   +1 more source

Used Frying Oil Decolorization Study Using Eco‐Friendly Nano‐Clay Adsorbent: Process Optimization by RSM and ANFIS Approaches

ChemistrySelect, Volume 11, Issue 2, 15 January 2026.
This study explores sustainable waste frying oil treatment using Fuller's earth and optimizes the decolorization process through RSM and ANFIS modeling. A comparative assessment highlights the prediction accuracy and applicability of both tools for adsorption‐based purification and resource recovery.
Anietie O. Etim, Paul Musonge, Joseph K. Bwapwa   +2 more
wiley   +1 more source

Material processing and recycling by halogenation.

, 1994
Nobuaki Sato
openalex   +2 more sources

Halogenation of b-Positions in Со(II)-Tetraphenylporphyrins [PDF]

, 2018
Н. В. Чижова, Yu. B. Ivanova, Н. Ж. Мамардашвили   +2 more
openalex   +1 more source