Results 191 to 200 of about 157,767 (395)

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

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

Solid Phase Synthesis and TAR RNA-Binding Activity of Nucleopeptides Containing Nucleobases Linked to the Side Chains via 1,4-Linked-1,2,3-triazole

open access: yesBiomedicines
Nucleopeptides (NPs) represent synthetic polymers created by attaching nucleobases to the side chains of amino acid residues within peptides. These compounds amalgamate the characteristics of peptides and nucleic acids, showcasing a unique ability to ...
Piotr Mucha   +6 more
doaj   +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

Synthesis of Unsymmetrically Condensed Benzo- and Thienotriazologermoles

open access: yesMolecules
Germoles and siloles unsymmetrically condensed with heteroaromatic units are attracting much interest. In this study, compounds containing a triazologermole core unit condensed with a benzene or thiophene ring were prepared.
Cong-Huan Wang   +2 more
doaj   +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

Cyclooctyne-based reagents for uncatalyzed click chemistry: A computational survey [PDF]

open access: yes, 2009
With the goal of identifying alkyne-like reagents for use in click chemistry, but without Cu catalysts, we used B3LYP density function theory (DFT) to investigate the trends in activation barriers for the 1,3-dipolar cycloadditions of azides with various
Chenoweth, David   +2 more
core   +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