ArTS Archivio della ricerca di Trieste

VALENTIN, ENNIO
 Distribuzione geografica
Salva come PNG Salva come JPEG
Continente #
NA - Nord America 10.058
EU - Europa 4.378
AS - Asia 4.003
SA - Sud America 426
AF - Africa 115
Continente sconosciuto - Info sul continente non disponibili 15
OC - Oceania 6
Totale 19.001
Salva come PNG Salva come JPEG
Nazione #
US - Stati Uniti d'America 9.927
SG - Singapore 1.326
CN - Cina 1.144
SE - Svezia 781
FR - Francia 776
UA - Ucraina 672
IT - Italia 456
HK - Hong Kong 337
BR - Brasile 336
DE - Germania 334
VN - Vietnam 320
KR - Corea 297
FI - Finlandia 248
TR - Turchia 231
GB - Regno Unito 209
RU - Federazione Russa 194
NL - Olanda 187
PL - Polonia 136
IE - Irlanda 102
IN - India 98
BG - Bulgaria 97
CA - Canada 75
BD - Bangladesh 47
JP - Giappone 45
CH - Svizzera 44
BE - Belgio 43
AR - Argentina 36
IQ - Iraq 30
MX - Messico 30
ES - Italia 25
MA - Marocco 21
ZA - Sudafrica 20
CI - Costa d'Avorio 19
CZ - Repubblica Ceca 15
EC - Ecuador 15
SN - Senegal 15
IL - Israele 14
EU - Europa 13
UZ - Uzbekistan 13
PK - Pakistan 12
VE - Venezuela 11
AT - Austria 10
HU - Ungheria 10
ID - Indonesia 10
SA - Arabia Saudita 9
AE - Emirati Arabi Uniti 8
TH - Thailandia 8
TT - Trinidad e Tobago 8
CL - Cile 7
DZ - Algeria 7
IR - Iran 7
MY - Malesia 7
CO - Colombia 6
EG - Egitto 6
JO - Giordania 6
LT - Lituania 6
PY - Paraguay 6
AU - Australia 5
KZ - Kazakistan 5
NP - Nepal 5
AM - Armenia 4
ET - Etiopia 4
GR - Grecia 4
KE - Kenya 4
PA - Panama 4
PE - Perù 4
PH - Filippine 4
TN - Tunisia 4
AO - Angola 3
AZ - Azerbaigian 3
CG - Congo 3
CR - Costa Rica 3
DK - Danimarca 3
EE - Estonia 3
HN - Honduras 3
HR - Croazia 3
MD - Moldavia 3
MM - Myanmar 3
NI - Nicaragua 3
PT - Portogallo 3
RO - Romania 3
RS - Serbia 3
TG - Togo 3
TW - Taiwan 3
UY - Uruguay 3
AL - Albania 2
BY - Bielorussia 2
JM - Giamaica 2
KW - Kuwait 2
LB - Libano 2
NG - Nigeria 2
OM - Oman 2
SI - Slovenia 2
A2 - ???statistics.table.value.countryCode.A2??? 1
BB - Barbados 1
BJ - Benin 1
BO - Bolivia 1
GT - Guatemala 1
GY - Guiana 1
KH - Cambogia 1
Totale 18.993
Salva come PNG Salva come JPEG
Città #
Ann Arbor 1.244
Woodbridge 1.082
Dallas 999
Singapore 718
Houston 664
Fairfield 617
Ashburn 612
Jacksonville 568
Chandler 510
San Jose 413
Hefei 373
Hong Kong 329
Wilmington 322
Beijing 306
Seoul 292
Seattle 271
Cambridge 196
Princeton 191
Izmir 180
Boardman 161
Santa Clara 141
Dearborn 130
Chicago 129
Los Angeles 125
Columbus 117
Buffalo 105
Ho Chi Minh City 101
Dublin 100
Sofia 97
Zgierz 93
The Dalles 91
Milan 89
Lauterbourg 88
Hanoi 84
Moscow 72
Munich 71
Amsterdam 68
New York 54
Trieste 53
London 52
São Paulo 44
Helsinki 42
Mestre 42
Brussels 38
Grafing 38
San Diego 37
Verona 37
Warsaw 37
Düsseldorf 36
Frankfurt am Main 34
Tokyo 32
Kocaeli 28
Nanjing 26
Shanghai 25
Bern 23
North Bergen 23
Phoenix 23
Bremen 22
Guangzhou 22
Paris 22
Orem 21
Montreal 20
Abidjan 19
Toronto 19
Des Moines 18
Da Nang 17
Ottawa 17
Sacile 16
Turku 16
Chennai 15
Atlanta 14
Dakar 14
Haiphong 14
Nanchang 14
Redwood City 14
San Francisco 14
Casablanca 13
Norwalk 13
Stockholm 13
Tashkent 13
Baghdad 12
Bonn 12
Brooklyn 12
Hangzhou 12
Jinan 12
West Jordan 12
Kunming 11
Redondo Beach 11
Falls Church 10
Johannesburg 10
Mumbai 10
Rio de Janeiro 10
Vienna 10
Washington 10
Zurich 10
Brno 9
Denver 9
Regensburg 9
Tianjin 9
Auburn Hills 8
Totale 13.061
Salva come PNG Salva come JPEG
Nome #
1,2-Cycloaddition of a α,β-unsaturated esters to a biased enamine. Crystal and molecu1ar structure of a cis-bicyclo[4.2.0]octane derivative 829
1,3,4-Oxadiazine derivatives versus open-chain isomers from reactions of 2-amino-cyc1o-2-hexen-1-ones with aryl acyldiimides 813
1-Arylsulfonylamino-1,2,3-triazole derivatives from functionalized 1,2-cyclohexandiones 398
A combined experimental and computational strategy in the assignment of absolute configurations of 4-methyl-5-oxo-tetrahydrofuran-3-carboxylic acids and their esters 378
7-oxo-4,5,6,7-tetrahydroindole Derivatives from Nitro-olefins and Secondary a-keto enamines. 319
1-Substituted morpholino ethenes—III. Carbocyclic and Aliphatic Heterocyclic Compounds from 5-Membered Ring Derivatives 306
A study of the enantiopreference of Lipase PS (Pseudomonas cepacia) towards diastereomeric dihydro-5-alkyl-4-hydroxymethyl-2(3H)-furanones 299
A Chemoenzymatic Synthesis of Optically Active Aza Analogues of Quercus Lactones 292
A short and convenient chemoenzymatic synthesis of both enantiomers of 3-phenylGABA and 3-(4-chlorophenyl)GABA (Baclofen) 289
Octaline and decalone derivatives from a new annulation reaction in enamine field 271
Baker's Yeast reduction of 4-hetero-2-(2-nitroethyl)cyclohexanones 268
Chemoenzymatic synthesis of optically active 4-methyl-tetrahydro-5-oxo-Furancarboxylic acids and esters 268
BAKER'S YEAST REDUCTION OF CYCLIC DELTA-KETOESTERS.SYNTHESIS AND CHIROPTICAL PROPERTIES OF CONDENSED DELTA-LACTONES 263
A Facile Route To Polysubstituted 2-Hydroxy-3-nitrocyclopentanones via a Linear alpha-Ketoenamine 257
Baker's Yeast Reduction of 2-(2-Nitroethyl)-1-cycloalkanones 256
Vinylamines XIV. Nitroalkylation of enamine equilibrium mixtures 255
A chemoenzymatic approach to the synthesis of enantiomerically pure aza analogues of paraconic acid methyl ester and both enantiomers of methyl β-proline 252
α-Nitrostyrene. First reactions with enamines 251
Application of 1,3-azomethine ylides derived from alfa-dicarbonyl compounds and L-proline to the synthesis of pyrrolizidines 250
Vinylamines XV. Unusual stereochemical course in nitroalkylation of biased enaminic systems 248
A convenient chemoenzymatic synthesis of (R)-(-) and (S)-(+)-homo-beta-proline 245
[3 + 2] Carbocyclization Reactions of Linear -Ketoenamines with Conjugated Nitroolefins 236
Synthesis of (+)- and (–)-Phaseolinic Acid by Combination of Enzymatic Hydrolysis and Chemical Transformations with Revision of the Absolute Configuration of the Natural Product 235
ENANTIOMERICALLY PURE TETRAHYDRO-5-OXO-2-FURANCARBOXYLIC ESTERS FROM DIALKYL 2-OXOGLUTARATES 232
A facile chemoenzymatic approach to chiral non-racemic beta-alkyl-gamma-amino acids and 2-alkylsuccinic acids.A concise synthesis of (S)-(+)-Pregabalin 229
Asymmetric Resolution of Diasteroisomeric 4-Ethoxycarbonyl-5-pentyl-gamma-butyrolactones by Crude PLE-mediated Hydrolysis 224
Cyclopentaannulation Reactions between Nitrocycloalkenes and Diacetyl Morpholino Enamine 220
A Novel Short Approach to (Z)-Pulchellalactam Through TMC-ATRC of 1-Isopropyl-2-propenyl Dichloroacetate 220
Chemoenzymatic synthesis of diastereomeric ethyl g-benzyl paraconates and determination of the absolute configurations of their acids 219
Reactions of Fischer's base with cyclic and acyclic conjugated nitroolefins and nitrovinylethers 215
Microbial bioreductions of g- and d-ketoacids and their esters 213
Condensed 2-pyrrolidinone-1,2-oxazines from lithium enolate of 1-benzyl-5-oxo-3-pyrrolidinecarboxylic acid and beta-aryl,beta-nitroenamines 210
3-Amino-5.6-dihydro-4H-thiopyran l.l-dioxides. Reactivity with diethyl azodicarboxylate and some α,β-unsaturated ketones 210
The first kinetic enzymatic resolution of methyl ester of C75 206
Synthesis of all stereoisomers of cognac lactones via microbial reduction and enzymatic resolution strategies 201
Synthesis of Polysubstituted Pyrrolizidines from Proline Derivatives and Conjugated Nitroolefins 200
SYNTHESIS AND BIOLOGICAL RESOLUTION OF CONDENSED BICYCLIC ISOPARACONIC ACID DERIVATIVES 200
Unusual ring-chain tautomerism in some cyclic nitronic esters 198
Bicyclic 1,2-Oxazine-N-oxides. Different behaviour in ring fission between systems derived from 5- and 6-membered ring cyclic enamines 196
Carbo- and Heterocyclization Reactions of 2-(4-Morpholinyl)-1-phenylpropene and Nitroolefins 195
Cyclic nitronic esters from highly diastereoselective cycloaddition of 2-(4-morpholinyl)norbornene to conjugated nitroolefins. 194
Electrophilic attack on biased isomeric nitroalkylated enamines. Stereospecific hydrolyses of the resulting adducts 188
Reactivity of Conjugated Azoalkenes towards alpha-Amino Acid Ethyl Esters 186
Chemoenzymatic synthesis of enantioenriched 5-oxo-tetrahydro-3-furancarboxylic acid derivatives 185
On the reactivity of some 2-methyleneindolines with b-nitroenamines, a-nitroalkenes and 1,2-diaza-1,3-butadienes 183
Synthesis of optically active a-benzyl paraconic acids and their esters and assignment of their absolute configuration 182
Synthesis of optically active condensed gamma-lactones from 2-(2-nitroethyl)cyclohexanols. Part II 179
Esterase-mediated synthesis of optically active GABA analogues containing a stereogenic all-carbon quaternary carbon atom 179
Synthesis and CD study of optically active bicyclic gamma-lactones belonging to the m-menthane series 178
Synthesis of optically active 1,2,3-substituted 4,5,6,7-tetrahydro-7H-indolones 178
Organocatalyzed synthesis of chiral non-racemic 1,4-dihydropyridazines 177
Biotransformations in the synthesis of 2-pyrrolidinones and 2-pyrrolinones 171
Kinetic Enzymatic Resolution of Alkyl tetrahydro-4-methylene-2-alkyl-5-oxo-3-furancarboxylates 168
SYNTHESIS OF ENANTIOMERICALLY PURE BICYCLIC CONDENSED DELTA-LACTONES VIA MICROBIAL REDUCTION AND ENZYMIC RESOLUTION STRATEGIES 167
Vinylamines X. Selectivity and stereochemistry of the reactions of 2-methylcyclohexanone enamines with ethylazodicarboxylate and phenylisocyanate 164
Chemo-Enzymatic Synthesis and Determination of the Absolute Configuration of Both Enantiomers of Methyl trans-5-Oxo-2-pentylpyrrolidine-3-carboxylate Precursors of the Aza Analogues of (+)- and (−)-Methylenolactocin 164
Studying enzyme enantioselectivity using combined ab initio and free energy calculations: alfa-chymotrypsin and methyl cis- and trans-5-oxo-2-pentylpirrolidine-3-carboxylates 163
Chemoenzymatic and yeast-catalysed synthesis of diastereomeric ethyl gamma-phenyl and gamma-(n-pyridyl)paraconates 162
Highly Diastereoselective Synthesis of Cyclic Nitronic Esters from 1-(4-Morpholinyl)-1-phenylpropene with Nitroolefins 160
Mechanism and stereochemistry of kinetically controlled reactions of 2-substituted-cyclohexanone enamines with diethylazodicarboxylate 160
Structure and Nucleophilic Behaviour of Secondary and Tertiary Enaminosulfones 159
Rapid efficient route to 3-hydroxy-o-phenylenediamine derivatives and derived benzoxazolines 157
Stereochemical aspects of a substituted bicyclo[4.2.0]octane 157
Benzoxazol-2(3H)-one and 1,3,4-oxadiazol-2(3H)-one derivatives from substituted enaminones and ketoenamines 155
Structure and•reactivity of enamines derived from 5,6-dihydro-2H-thiopyran-3(4H)-one 1,1-dioxide 155
Oxidation and Reduction of Enamines 155
Computational studies on the enantioselectivity of alpha-chymotrypsin towards beta-carbomethoxy-gamma-lactams. 154
Tautomerism in enamines from 2-tetralone. Difference in nucleophilic behaviour between morpholino and pyrrolidino enamines 154
Cycloaddition vs. conjugative Michael-type addition of 2-ethoxy-3-morpholinobuta-1,3-diene with nitroolefins 153
Mononitroalkylations of Butane-2,3-dione 153
First Chemoenzymatic Synthesis of (+)-2-Carboxypyrrolidineacetic Acid, the Nucleus of Kainoid Amino Acids. 152
Diastereo- and Enantio-selective Cyclopentaannulations from Diacetyl Monoimines and Nitroalkenes 148
Vinylamines XI. Structure and reactivity of 2-carbalkoxy-, 2-acyl- and 2- phenyl-cyclohexanone enamines with ethylazodicarboxylate and phenylisocyanate 148
Enantiomerically pure beta,gamma-disubstituted gamma-lactams: Enzyme-mediated synthesis and computational studies 147
The crystal and molecular structure of the adduct from the stereoisomeric equilibrium mixture of racemic 2-(α-phenyl, β-nitro)ethyl-4-t-butylcyclohexanone 141
l-Substituted morpholino ethenes. III. Carbocyclic and aliphatic heterocyclic compounds from 5-membered ring derivatives 139
Vinylamines XII. Equilibrium in enamines from 3-substituted cyclohexanone: high selectivity of β-nitrostyrene towards the Δ6 isomers 138
Lack of stereoselectivity in the formation of thietane 1,1-dioxide derivative from anancomeric amino cycloalkenes 137
Enamines and Ynamines 136
Recent Aspects of the Synthesis of Enantiopure 5-oxo-tetrahydro-3-furan carboxylic acids 134
Enamines and ynamines in The chemistry of functional groups.SupplementF: The chemistry of amino,nitroso and nitro compounds and their derivatives 131
Preparation of the Maleic Anhydride Nucleus from Dichloro gamma-Lactams:Focus on the Role of the N-Substituent in the Functional Rearrangement and in the Hydrolytic Steps 130
Lipase-catalyzed deacetylation of botryodiplodin acetate 129
Nitroalkylation Reactions of Methyl 2-(4-Morpholinyl)acrylate. Synthesis of alpha,omega-Dioxoesters 128
Enantioselectivity of alpha-chytripsyn towards 4,5-disubstituted-gamma-lactams: a new perspective from molecular simulations 126
The crystal and molecular strueture of l-(piperidin-1-yl)-4-t-butyl-7-thiobicyclo[4.2.0]octane 7,7-dioxide [lα,4α,6α] 123
Ring contraction reactions of bicyclic nitronic esters 123
Oxidations and reduction of enamines in The chemistry of enamines, The chemistry of functional groups 120
Nucleophilic behaviour of enamines derived from 2-methyl-5,6-dihydro-2H-thiopyran-3(4H)-one l,l-dioxide 120
Optically active alpha-phenylethylamine as efficient organocatalyst in the solvent-free reactions between 2,3-butanedione and conjugated nitroolefins 113
Ionization energies of some amines and enamines and an estimation of their relative basicities in gaseous phase 112
Nucleophilic behaviour of l-substituted morpholino ethenes 107
Nitroalkylation and nitroalkenylation reactions of gamma-lactone enolates. A facile ring switch from polysubstituted gamma-lactones to polysubstituted gamma-lactams 105
Polyfunetionalized 1(2H)-hexahydropentalenones by rearrangement of bicyelie 1,2-oxazine N-oxide derivatives 102
ENZYMIC RESOLUTION OF AN ALFA-METHYLENE-GAMMA-LACTONIC ESTER 79
Totale 19.274
Salva come PNG Salva come JPEG
Categoria #
all - tutte 50.255
article - articoli 0
book - libri 0
conference - conferenze 0
curatela - curatele 0
other - altro 0
patent - brevetti 0
selected - selezionate 0
volume - volumi 0
Totale 50.255
Salva come PNG Salva come JPEG


Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
2020/2021142 0 0 0 0 0 0 0 0 0 0 0 142
2021/20221.279 41 89 53 232 21 111 33 43 134 133 86 303
2022/20231.659 194 192 184 195 148 299 4 103 180 37 95 28
2023/2024851 81 55 59 48 101 46 123 161 5 27 69 76
2024/20252.210 61 60 92 194 315 128 178 132 324 241 225 260
2025/20265.795 536 551 1.216 454 404 505 636 144 506 602 184 57
Totale 19.274