Results 101 to 110 of about 4,131 (247)

1,3-Dien-5-ynes: Versatile Building Blocks for the Synthesis of Carbo- and Heterocycles [PDF]

open access: yes, 2016
1,3-Dien-5-ynes have been extensively used as starting materials for the synthesis of a wide number of different carbo- and heterocycles. The aim of this review is to give an overview of their utility in organic synthesis, highlighting the variety of ...
Aguilar, Enrique   +3 more
core   +1 more source

Tacrine-allyl/propargylcysteine-benzothiazole trihybrids as potential anti-Alzheimer's drug candidates [PDF]

open access: yes, 2016
The authors acknowledge the Portuguese Fundação para a Ciência e Tecnologia (FCT) for the project UID/QUI/00100/2013, postdoctoral fellowships (RSK and KC).
Cardoso, Sandra M   +7 more
core   +1 more source

An Efficient Lewis Acid Catalyzed Povarov Reaction for the One-Pot Stereocontrolled Synthesis of Polyfunctionalized Tetrahydroquinolines [PDF]

open access: yes, 2017
An easy and efficient synthetic methodology for the one-pot stereocontrolled synthesis of tetrahydroquinolines through Lewis acid activated Povarov reaction is described. The protocol takes advantage of the very cheap, easy to handle, and environmentally
Bordi, Samuele   +5 more
core   +1 more source

Chemistry of Fullerene Epoxides: Synthesis, Structure, and Nucleophilic Substitution-Addition Reactivity

open access: yesMolecules, 2012
Fullerene epoxides, C<sub>60</sub>O<sub>n</sub>, having epoxide groups directly attached to the fullerene cage, constitute an interesting class of fullerene derivatives.
Yusuke Tajima   +3 more
doaj   +1 more source

Novel achievements with an old metal: Copper-promoted synthesis of four-membered azacycles [PDF]

open access: yes, 2014
The synthesis of four-membered azacycles is of importance because of the chemical and biological relevance of these compounds. Recent progress in copper-catalyzed reactions has been applicable to a variety of research fields, such as heterocyclic ...
Alcaide, Benito   +2 more
core   +1 more source

Radical Cyclization of Trichloroacetamides: Synthesis of Lactams [PDF]

open access: yes, 2018
Trichloroacetamides can act as radical precursors to synthesize nitrogen-containing heterocycles in a variety of processes, mainly involving atom transfer radical cyclizations (ATRC), mediated by Cu(I) or Ru(II) catalysts, and the hydride reductive ...
Bonjoch i Sesé, Josep   +3 more
core   +1 more source

Syntheses of Polyfunctionalized Compounds Using Nitroisoxazolones

open access: yesJournal of Synthetic Organic Chemistry, Japan, 2005
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Nagatoshi Nishiwaki   +2 more
openaire   +2 more sources

Identification and characterization of antibacterial compound(s) of cockroaches (Periplaneta americana) [PDF]

open access: yes, 2017
Infectious diseases remain a significant threat to human health, contributing to more than 17 million deaths, annually. With the worsening trends of drug resistance, there is a need for newer and more powerful antimicrobial agents.
A Brüning   +215 more
core   +1 more source

Synthesis of dihydrophenanthridines by a sequence of Ugi-4CR and palladium-catalyzed intramolecular C-H functionalization

open access: yesBeilstein Journal of Organic Chemistry, 2008
BackgroundSmall polyfunctionalized heterocyclic compounds play important roles in the drug discovery process and in the isolation and structural identification of biological macromolecules. It is expected that ready access to diverse sets of heterocycles
Florence Bonnaterre   +2 more
doaj   +1 more source

Synthesis and chemical properties of 3-acyl- and 3-carbethoxy-4-pyrones [PDF]

open access: yes, 2013
Реакция 1-арил-2-диметиламинометиленбутан-1,3-дионов с диэтиоксалатом в присутствии гидрида натрия в ТГФ приводит к образованию этил 5-ароил-4-оксо-4Н-пиран-2- карбоксилатам, из которых 4-оксо-6-арил-4Н-пиран-2-карбоновые кислота (6- арилкомановая ...
Obydennov, D. L.   +1 more
core  

Home - About - Disclaimer - Privacy