Search results for "ATAL"
showing 10 items of 10591 documents
An easy access to fused chromanones via rhodium catalyzed oxidative coupling of salicylaldehydes with heterobicyclic olefins
2016
Abstract Herein we describe a detailed study on the rhodium catalyzed oxidative coupling of salicylaldehydes with heterobicyclic olefins such as diazabicyclic olefins and urea-derived bicyclic olefins. The developed method provides an ideal route to fused chromanone systems in a single synthetic step. Moreover, the scope of this methodology was extended to different oxa/aza-bridged bicyclic urea derivatives.
An easy access to fused chromanones via rhodium catalyzed oxidative coupling of salicylaldehydes with heterobicyclic olefins
2016
Herein we describe a detailed study on the rhodium catalyzed oxidative coupling of salicylaldehydes with heterobicyclic olefins such as diazabicyclic olefins and urea-derived bicyclic olefins. The developed method provides an ideal route to fused chromanone systems in a single synthetic step. Moreover, the scope of this methodology was extended to different oxa/aza-bridged bicyclic urea derivatives. peerReviewed
Oligophenyls with Multiple Disulfide Bridges as Higher Homologues of Dibenzo[c,e][1,2]dithiin: Synthesis and Application in Lithium-Ion Batteries.
2020
Abstract Higher homologues of dibenzo[c,e][1,2]dithiin were synthesized from oligophenyls bearing multiple methylthio groups. Single‐crystal X‐ray analyses revealed their nonplanar structures and helical enantiomers of higher meta‐congener 6. Such dibenzo[1,2]dithiin homologues are demonstrated to be applicable to lithium‐ion batteries as cathode, displaying a high capacity of 118 mAh g−1 at a current density of 50 mA g−1.
Proposta d’ensenyament i aprenentatge de la construcció ho-transitiva catalana: una seqüència didàctica basada en la gramàtica de construccions
2021
L’ensenyament dels pronoms febles és un dels punts més complexos de l’ensenyament del català, sobretot com a segona llengua (L2). La tradició acadèmica ha relegat els pronoms febles a un context purament sintàctic que implica saber tot un seguit de conceptes que, si pensem en una L2, potser la major part d’alumnes no coneixen. És per això que aquest estudi presenta una seqüència didàctica basada en la gramàtica de construccions, i especialment en la Gramàtica de Construccions Aplicada (Gilquin i De Knop 2016), per a l’ensenyament i l’adquisició del que hem anomenat la construcció HO-TRANSITIVA. La gramàtica de construccions atorga un paper fonamental al significat de les formes gramaticals …
Antibody recognition of fluorinated MUC1 glycopeptide antigens.
2011
The syntheses of various fluorinated MUC1 glycopeptide antigens and their specific binding to serum antibodies from mice immunized with natural and fluorinated TF(6)-MUC1-TTox conjugate vaccines are presented.
Synthesis of a MUC1-glycopeptide-BSA conjugate vaccine bearing the 3'-deoxy-3'-fluoro-Thomsen-Friedenreich antigen.
2011
A novel MUC1-glycopeptide–BSA conjugate vaccine with a specifically fluorinated Thomsen–Friedenreich antigen side chain at Thr6 was prepared. Preliminary immunological experiments reveal specific binding of the tumor-associated glycopeptide antigen analog by anti-MUC1-mouse antibodies.
Digital Platforms for Restructuring the Public Sector
2018
Many technological innovations have led to the emergence of the platform economy in recent years. This development is changing the entire landscape of business in the era of digitalisation. However, the impacts of the platform economy on public services and government are not well known. In this article we study the potential for the digital platform economy to help restructure the public sector. Firstly, central features of the new platform technology are explored, pointing to an algorithmic revolution, big data and cloud computing. Platforms are used in coordinating market transactions in an extremely efficient way. In order to apply the platform-concept to the public sector, an experimen…
Diossido di titanio e alcune sue applicazioni. Spunti didattici
2016
Il diossido di titanio, TiO2, ampiamente utilizzato come pigmento di colore bianco, è uno dei materiali più studiati nell’ambito della ricerca per le sue proprietà fotocatalitiche. Esso, infatti, contribuisce alla fotodegradazione di sostanze inquinanti, motivo per cui è utilizzato nel settore della purificazione dell’aria e dell’acqua e per la realizzazione di vetri autopulenti, disponibili commercialmente. Nel presente lavoro viene suggerito un percorso didattico con l’obiettivo di mettere in evidenza le proprietà fotocatalitiche del diossido di titanio oltre che può essere utilizzato per affrontare concetti fondamentali quali la struttura a bande dei solidi e la fotocatalisi. Il percorso…
Dioxomolybdenum(VI) complexes of hydrazone phenolate ligands -syntheses and activities in catalytic oxidation reactions
2021
The new cis-dioxomolybdenum(VI) complexes [MoO2(L2)(H2O)] (2) and [MoO2(L3) (H2O)] (3) containing the tridentate hydrazone-based ligands (H2L2 = N'-(3,5-di-tert-butyl-2-hydroxybenzylidene)-4-methylbenzohydrazide and H2L3 = N'-(2-hydroxybenzylidene)-2-(hydroxyimino)propanehydrazide) have been synthesised and characterized via IR, 1H and 13C NMR spectroscopy, mass spectrometry, and single crystal X-ray diffraction analysis. The catalytic activities of complexes 2 and 3, and the analogous known complex [MoO2(L1)(H2O)] (1) (H2L1 = N'-(2-hydroxybenzylidene)-4-methylbenzohydrazide) have been evaluated for various oxidation reactions, viz. oxygen atom transfer from dimethyl sulfoxide to triphenylp…