Results 61 to 70 of about 8,110 (222)
Rearrangement groups of fractals [PDF]
Transactions of the American Mathematical Society 372.7 (2019):
4509-4552, 2015 We construct rearrangement groups for edge replacement systems, an infinite class of groups that generalize Richard Thompson's groups F, T, and V . Rearrangement groups act by piecewise-defined homeomorphisms on many self-similar topological spaces, among them the Vicsek fractal and many Julia sets.
arxiv +1 more source
Facile and One-pot Synthesis of Nα-fmoc/bsmoc/boc/z-protected Ureidopeptides and Peptidyl Ureas Employing Diphenylphosphoryl Azide [DPPA] [PDF]
, 2008 Diphenylphosphoryl azide (DPPA) mediated one-pot synthesis of Nα-Fmoc/Bsmoc/Boc/Z-protected ureidopeptides and peptidyl ureas as well as phenyl/succinimidyl (Nα-urethane protected) methyl carbamates starting from Nα-protected amino acids is reported. The
Chennakrishnareddy, G. +2 more
core +3 more sources
Bulletin of the Korean Chemical Society, EarlyView.Covalent attachment of TEMPO radicals to Zr‐based metal–organic frameworks (MOFs) was achieved by diversifying linker structures, enabling efficient aerobic oxidation of secondary alcohols. The modified MOFs facilitated sequential reactions, including isoxazole synthesis via aerobic oxidation and cycloaddition, demonstrating their versatility and ...
Seungheon Cha +7 more
wiley +1 more source
Fully Renewable Non-Isocyanate Polyurethanes via the Lossen Rearrangement [PDF]
, 2020 In this work, a straightforward and efficient synthesis approach to renewable non‐isocyanate polyurethanes (NIPUs) is described. For this purpose, suitable and renewable carbamate monomers, possessing two double bonds, are synthesized from hydroxamic ...
Filippi, Luca, Meier, Michael A. R.
core +2 more sources
Strategy‐Level Prodrug Synthesis
Chemistry – A European Journal, Accepted Article.Organic synthesis uniquely provides opportunities to access molecules that serve defined purposes. Medicinal chemistry illustrates this attribute well with prodrug design, whereby a drug undergoes a late‐stage conversion to a conditionally responsive active medicinal agent (AMA), being a notable example.
Paul Geaneotes, Paul Floreancig
wiley +1 more source
The Dihydroindeno[2,1‐c]fluorene Core: from Syntheses to Properties and Potential Applications
European Journal of Organic Chemistry, Accepted Article.In the last decade, substances possessing the dihydroindeno[2,1‐c]fluorene scaffold showed interesting photo‐physical properties and other potential applications in electronics. The afore‐mentioned compounds belong to the family of five regioisomeric dihydroindenofluorenes, but unlike other ones, they possess angular or, in the case of higher congeners,
Timothée Cadart, Martin Kotora
wiley +1 more source
Aminoisothiazolamides, a new class of potent inhibitors of lysyl‐tRNA synthetase
Pest Management Science, EarlyView.The present work covers a series of novel herbicidal lead structures that possess an aminoisothiazolamide scaffold as a structural key feature. Lysyl‐tRNA synthetase 1 (KRS1) was identified as the biochemical mode‐of‐action. Based on optimized and tailored synthetic approaches, a broader SAR study was carried out delivering some lead structures that ...
David Bernier +26 more
wiley +1 more source
Funcionalització d’enllaços C–H catalitzada per pal·ladi per a la síntesi de tetrahidroisoquinolines [PDF]
, 2022 Treballs Finals de Grau de Química, Facultat de Química, Universitat de Barcelona, Any: 2022. Tutor: Xavier Ariza PiquerThe synthesis of new bioactive compounds is always a challenge for chemists, particularly in areas where the appearance of resistant ...
Guillamon Daimiel, Pau
core
Synthetic approaches towards alkaloids bearing α-tertiary amines [PDF]
, 2016 Alkaloids account for some of the most beautiful and biologically active natural products. Although they are usually classified along biosynthetic criteria, they can also be categorized according to certain structural motifs.
Hager, Anastasia +4 more
core +3 more sources
Analysis of cooperativity and localization for atomic rearrangements [PDF]
, 2004 We propose new measures of localization and cooperativity for the analysis of atomic rearrangements. We show that for both clusters and bulk material cooperative rearrangements usually have significantly lower barriers than uncooperative ones, irrespective of the degree of localization.
arxiv +1 more source