Results 21 to 30 of about 3,614,900 (225)

Synthesis of some new organotellurium compounds based on 1-substituted tetrazole

open access: yes, 2021
New organotellurium compounds are derived from 1-butyl-5H-tetrazole (1). 1-butyl tetrazole-5-yl mercury (II) chloride (2) was synthesized from the reaction of compound 1 with mercury acetate and sodium chloride.
S. Abbas   +2 more
semanticscholar   +1 more source

A glimpse on biological activities of tellurium compounds [PDF]

open access: yes, 2009
Tellurium is a rare element which has been regarded as a toxic, non-essential trace element and its biological role is not clearly established to date. Besides of that, the biological effects of elemental tellurium and some of its inorganic and organic ...
Cunha, Rodrigo Luiz Oliveira Rodrigues   +2 more
core   +5 more sources

Cyclization Reactions Involving 2-Aminoarenetellurols and Derivatives of α,β-Unsaturated Carboxylic Acids

open access: yesHeteroatom Chemistry, 2021
The reductive cyclization of arenetellurols carrying α,β-unsaturated amide functionalities in the ortho position was investigated. Conceptually, such compounds can form 1,3-tellurazoles without the involvement of the unsaturation in the ring closure ...
Jayna A. Patel   +4 more
doaj   +1 more source

Microwave-Assisted Group-Transfer Cyclization of Organotellurium Compounds [PDF]

open access: yesThe Journal of Organic Chemistry, 2004
Primary- and secondary-alkyl aryl tellurides, prepared by arenetellurolate ring-opening of epoxides/ O-allylation, were found to undergo rapid (3-10 min) group-transfer cyclization to afford tetrahydrofuran derivatives in 60-74% yield when heated in a microwave cavity at 250 degrees C in ethylene glycol or at 180 degrees C in water. To go to completion,
Cecilia, Ericsson, Lars, Engman
openaire   +3 more sources

Stabilization of 2-Pyridyltellurium(II) Derivatives by Oxidorhenium(V) Complexes

open access: yesChemistry, 2023
Zwitterionic compounds such as pyridine-containing tellurenyl compounds are interesting building blocks for heterometallic assemblies. They can act as ambiphilic donor/acceptors as is shown by the products of reactions of the zwitterions HpyTeCl2 or ...
Felipe Dornelles da Silva   +4 more
doaj   +1 more source

Crystallographic, DFT and docking (cathepsin B) studies on an organotellurium(IV) compound [PDF]

open access: yes, 2016
Some biologically active organotellurium compounds exhibit inhibitory potency against cathepsin B. In this study, an alkyl derivative, viz. [CH3(CH2)2C(I)=C(H)](nBu)TeI2, 1, has been structurally characterised by X-ray crystallography and shown to be ...
Caracelli, Ignez   +6 more
core   +1 more source

Polymerization‐induced self‐assembly for drug delivery: A critical appraisal

open access: yesJournal of Polymer Science, Volume 61, Issue 24, Page 3186-3210, 15 December 2023., 2023
Abstract Polymerization‐induced self‐assembly (PISA) with (in situ) encapsulation of (therapeutic) cargo has proven to be an efficient preparation method for loaded polymeric micelles and polymersomes, thereby presenting significant opportunities in the field of drug delivery.
Eleonora G. Hochreiner   +1 more
wiley   +1 more source

Twinning by merohedry in bis(4-methoxyphenyl)tellurium(IV) diiodide dimethyl sulfoxide hemisolvate [PDF]

open access: yes, 2008
Green crystals of the title compound, C14H14I2O2Te.0.5C2H6OS, space group P32, show twinning by merohedry (class II). The asymmetric unit contains two organotellurium molecules and one dimethyl sulfoxide (DMSO) molecule.
Alvarez-Larena, Angel   +4 more
core   +2 more sources

Chalcogen Bonding Catalysis: Tellurium, the Last Frontier?

open access: yesChemistry – A European Journal, Volume 29, Issue 69, December 11, 2023., 2023
This review highlights the importance of chalcogen bonding in organic synthesis through a compilation of tellurium derivatives used up‐to‐now in catalysis. These powerful chalcogen bond donors were shown to activate numerous kind of substrates by non‐covalent interaction with functional groups such as chlorides, carbonyls, imines, epoxides, alcohols ...
Patrick Pale, Victor Mamane
wiley   +1 more source

Responsive materials based on coordination bonds

open access: yesResponsive Materials, Volume 1, Issue 2, November 2023., 2023
Distinct from the previous reviews on responsive materials, this review highlights the recent advances in responsive materials based solely on coordination bonds. The responsive materials based on coordination bonds are categorized and summarized by the type of external stimuli, including thermo‐stimulus, photo‐stimulus, electro‐stimulus, mechano ...
Shi‐Yi Chen   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy