Results 91 to 100 of about 18,552 (216)
Il contributo di Bing Maps per lo studio della città di Ostia Antica
Archeomatica, 2016 In the last years Bing Maps has been updated to offer new ways for tourism, through the integration of Yelp, Booking, Tripadvisor and Trivago, but it has abandoned the primary aim: a real alternative to Google Earth.
Davide Mastroianni
doaj +2 more sources
Chemistry – A European Journal, EarlyView.Nitrooxylation—the installation of nitrate esters (–ONO2) has evolved from classical mixed‐acid protocols to catalytic and mechano‐, flow‐, photo‐, and electrochemical strategies. This review delineates ionic and radical manifolds for C–ONO2 bond formation, emphasizing mechanistic control, selected substrate scope, and selectivity.
Jayanta Dey, Dmitry Katayev
wiley +1 more source
Chemistry – A European Journal, EarlyView.Charge and orbital control represent fundamental principles in organic chemistry. In this study, these principles are applied to the aldol reactions of a cyclic Ge‐dienolate. By systematically tuning the charge and orbital distributions of the Ge‐dienolates and their aldehyde reaction partners, regio‐ and stereoselective access to three distinct aldol ...
Taishi Nojima +2 more
wiley +1 more source
Az Európai Unió Energia 2020 stratégiája, valamint az Észak-Alföld régió megújuló energiaforrások előállításában rejlő potenciálja [PDF]
, 2014 Jelen tanulmányban az Európai Unió Energia 2020 stratégiájának legfőbb célkitűzéseit mutatom be, kitérve annak ismertetésére is, hogy a megújuló energiaforrások volumenének növelése hogyan járul hozzá az Észak-Alföld régió gazdasági és szociális ...
Eperjesi, Zoltán
core +1 more source
The Mechanism of Visible‐Light Photochemical Rearrangements of Conjugated Amide Enolates
Chemistry – A European Journal, EarlyView.Visible light irradiation of extended enolates of N‐benzylamides leads to homolytic C─N Bond cleavage, generating a biradical. Computational and mechanistic studies suggest rapid radical recombination within a solvent cage to give either ring‐expanded or rearranged products. ABSTRACT Deprotonation of conjugated amides forms colored solutions of lithium
James Mortimer +3 more
wiley +1 more source
A Nyugat-dunántúli régió – régió?
Tér és Társadalom, 1998 Szörényiné Kukorelli Irén
doaj +1 more source
Chemistry – A European Journal, EarlyView.Several new chiral cyclic hypervalent iodine(III) reagents have been synthesized and characterized. Carbon‐based ligands were successfully installed onto the hypervalent iodine centers, giving thus access to novel chiral cyano‐, trifluoromethyl‐ or alkynyl‐bearing λ3‐iodanes.
Emmanuel Valzer +4 more
wiley +1 more source
N‐Sulfonyl Azalevoglucosan: A Versatile Platform for the Synthesis of Polysubstituted Piperidines
Chemistry – A European Journal, EarlyView.Gain by strain: The synthesis of a levoglucosan analog, in which the pyranose oxygen has been replaced by a nitrogen, allows navigation on the piperidine ring to iteratively install functional groups at C1, C2, C3, C4, and C6 positions using simple experimental protocols with minimal protecting group manipulation.
Dylan Yorga +6 more
wiley +1 more source
A Dél-Alföldi régió gasztroturisztikai termékei
, 2018 A szakdolgozatom célja a Dél-Alföldi régió gasztroturisztikai termékeinek ismertségének a felmérése. A szakirodalmi részben kifejtem a gasztroturizmust és a hungarikummá válás folyamatát is. 500 db kérdőívet töltöttem ki az ország többi régiójában.
Szabó, Zsófia
core