Results 161 to 170 of about 49,489 (310)

Development of Multipurpose Supported Asymmetric Salen Catalysts by Cu(0)‐Mediated Reversible Deactivation Radical Copolymerization

open access: yesChemCatChem, EarlyView.
The challenge of recycling heterogeneous catalysts and reusing them in different reactions was addressed. To this end, salen complexes were anchored on methacrylate insoluble polymers obtained using the Cu(0)‐mediated RDRP method. Their reactivity and recyclability were analyzed in asymmetric ring opening and dynamic kinetic resolution of epoxides ...
Rafaela Bechara   +8 more
wiley   +1 more source

Studies in Azides. Part II. Synthesis of Some Substituted 1,2,3-Triazoles [PDF]

open access: green, 1963
Daleep Singh Deorha   +2 more
openalex   +1 more source

Recent advances in the synthesis of triazole derivatives [PDF]

open access: yes, 2015
Triazole ring system has attracted a continuously growing interest of synthetic organic chemists and those dealing with the medicinal compounds due to its versatile potential to interact with biological systems.
Ahmad, Matloob   +6 more
core  

Catalysis in Chemical Modification of Proteins

open access: yesChemCatChem, EarlyView.
Catalytic principles of synthetic organic chemistry have been increasingly applied to chemical modification of proteins during the recent years. This review article describes how seven types of catalytic systems —electrocatalysis, photocatalysis, metal catalysis, acid catalysis, organocatalysis, supramolecular catalysis, and heterogeneous catalysis ...
Seiya Ishizawa   +4 more
wiley   +1 more source

[CuI(PPh3)3]‐Mediated Arylation of 1,2,3‐Triazoles

open access: yesChemCatChem, EarlyView.
Arylation reactions are a powerful strategy to selectively prepare highly substituted heterocyles. Herein, the arylation of 1,4‐disubstituted 1,2,3‐triazoles with [CuI(PPh3)3] is reported in the presence of air and moisture. Suitable substrates include triazoles containing a pyridyl group, which are of interest in applications such as ancillary ligands
Steven Lal   +5 more
wiley   +1 more source

Toward a harmonized methodology to analyze field side effects of two pesticide products on earthworms at the EU level

open access: yesIntegrated Environmental Assessment and Management, Volume 19, Issue 1, Page 254-271, January 2023., 2023
Abstract Before plant protection product (PPP) marketing authorization, a risk assessment for nontarget soil organisms (e.g., earthworms) is required as part of Regulation (EC) No. 1107/2009. Following a stepwise approach, higher tier earthworm field studies are needed if they cannot demonstrate low long‐term risk based on laboratory studies.
Franck Brulle   +8 more
wiley   +1 more source

Spin State‐Driven Modulation of Catalytic Activity of an Iron Spin‐Crossover Complex: Toward Switchable Catalysis

open access: yesChemCatChem, Accepted Article.
We investigate the effect of iron(II) spin state on the catalytic activity of a spin‐crossover complex, specifically [Fe(NH2trz)3](NO3)2, in an acetalization reaction. Thanks to its bistability, this complex enables the evaluation of its catalytic activity in both the high‐spin and low‐spin states under identical experimental conditions, thereby ...
Yongjian Lai   +5 more
wiley   +1 more source

The Reaction of 4-Substituted Thiosemicarbazides with Phenyl Isocyanide. 1,3,4-Thiadiazoles and 1,2,4-Triazoles. [PDF]

open access: bronze, 1977
Svend Treppendahl   +6 more
openalex   +1 more source

Home - About - Disclaimer - Privacy