Results 81 to 90 of about 7,252 (218)

Synthesis, characterization and biological activities of a new Isatin Schiff base and its metal complexes [PDF]

open access: yes, 2013
The complexes of Copper(II)​, Cobalt(II)​, Nickel(II) and Zinc(II) of Isatin Schiff base (L) (L = Schiff base derived from Isatin and 2-​methyl-​4-​nitroaniline) were synthesized and characterized.
Mahendra, K.N.   +2 more
core  

Synthesis and Antibacterial Activity of N,N-Diethylamide Bearing Benzenesulfonamide Derivatives [PDF]

open access: yes, 2013
Sulfonamides are known to represent a class of medicinally important compounds which are extensively used as antibacterial agents. Hence, a series of new N,N-diethyl amide bearing sulfonamides (2a-k) were synthesized via amidation of easily prepared ...
Ajani, Olayinka O.   +4 more
core   +1 more source

Functionalized Polyolefin With Photoresponsive Surface

open access: yesChemistryEurope, Volume 4, Issue 2, February 2026.
The introduction of stimulus‐responsive groups can give polymers some material properties that cannot be realized simply by design and synthesis. Polyolefins, due to their nonpolar nature, suffer from poor compatibility with polar materials; however, directly grafting polar groups like hydroxyls onto their surface via traditional synthesis risks ...
Qiuhui Tian   +7 more
wiley   +1 more source

Asymmetric 1,3-Dipolar Cycloadditons of Stabilized Azomethine Ylides with Nitroalkenes [PDF]

open access: yes, 2014
This review highlights the biological importance of many polysubstituted nitro-prolines and -pyrrolidines. Their preparation using asymmetric 1,3-dipolar cycloadditions of azomethine ylides with nitroalkenes using diastereoselective and enantioselective ...
Nájera, Carmen, Sansano, Jose M.
core   +2 more sources

Bioinspired Light‐Driven Organic Rotary Molecular Systems

open access: yesChemistryEurope, Volume 4, Issue 1, January 2026.
This review explores the evolution of bioinspired light‐driven rotary molecular systems (RMSs), highlighting the integration of natural chromophore‐based fragments to enhance quantum efficiency, photostability, and biocompatibility. Key strategies to optimize photochemical performance and broaden functional applications are discussed, providing a ...
Lidia Hortigüela, Sara P. Morcillo
wiley   +1 more source

Recent Advances in Biocatalytic Promiscuity: Hydrolase-Catalyzed Reactions for Nonconventional Transformations [PDF]

open access: yes, 2015
Financial support from the Spanish Ministerio de Economía y Competitividad (CTQ2013-44153-P) is grateful acknowledged. M.L.-I.
Gotor Fernández, Vicente   +1 more
core   +2 more sources

Decoding Urease Inhibition: A Comprehensive Review of Inhibitor Scaffolds

open access: yesChemMedChem, Volume 21, Issue 2, January 2026.
Representative functional groups known for urease inhibition are reviewed within diverse scaffolds using structure–activity analyses to identify features associated with high inhibitory activity. Urease is a metalloenzyme produced by a wide range of organisms and plays a critical role in nitrogen microbial metabolism by catalyzing the hydrolysis of ...
Nuno Martinho, Natália Aniceto
wiley   +1 more source

Synthesis, characterization, antibacterial, antifungal and anthelmintic activities of a new 5-​nitroisatin Schiff base and its metal complexes [PDF]

open access: yes, 2016
The copper (II)​, cobalt (II)​, nickel (II) and zinc (II) complexes of 5 - nitroisatin Schiff base (L) (L = Schiff base derived from 5-​nitroisatin and 2-​methyl-​4-​nitroaniline) were synthesized and characterized.
Mahendra, K.N., Rao, R., Reddy, K.R.
core  

Organocatalytic Lewis base functionalisation of carboxylic acids, esters and anhydrides via C1-ammonium or azolium enolates [PDF]

open access: yes, 2014
This tutorial review highlights the organocatalytic Lewis base functionalisation of carboxylic acids, esters and anhydrides via C1-ammonium/azolium enolates.
Morrill, Louis C., Smith, Andrew D.
core   +1 more source

Syntheses and Pharmacological Activities of Isatin Derivatives

open access: yesJournal of Drug Delivery and Therapeutics, 2019
Twenty derivatives of isatin (1H-indole-2, 3-Dione) were synthesized by the schematic route as per as scheme. These were further characterized by spectroscopic analysis. All the novel synthesized derivatives of isatin were screened for their antimicrobial activity against Gram-positive bacteria: Staphylococcus aureus, Bacillus subtilis, Streptococcus ...
Asif Husain   +3 more
openaire   +1 more source

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