ArTS Archivio della ricerca di Trieste

VALENTIN, ENNIO
 Distribuzione geografica
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Continente #
NA - Nord America 10.600
EU - Europa 4.425
AS - Asia 4.012
SA - Sud America 435
Continente sconosciuto - Info sul continente non disponibili 288
AF - Africa 115
OC - Oceania 6
Totale 19.881
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Nazione #
US - Stati Uniti d'America 10.458
SG - Singapore 1.327
CN - Cina 1.148
SE - Svezia 793
FR - Francia 776
UA - Ucraina 672
IT - Italia 482
BR - Brasile 340
HK - Hong Kong 338
DE - Germania 336
VN - Vietnam 320
KR - Corea 297
FI - Finlandia 248
TR - Turchia 231
GB - Regno Unito 212
RU - Federazione Russa 194
NL - Olanda 187
PL - Polonia 136
IE - Irlanda 103
IN - India 98
BG - Bulgaria 97
CA - Canada 80
BD - Bangladesh 48
JP - Giappone 46
CH - Svizzera 44
BE - Belgio 43
AR - Argentina 38
MX - Messico 33
IQ - Iraq 30
ES - Italia 26
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 12
ID - Indonesia 11
AT - Austria 10
HU - Ungheria 10
SA - Arabia Saudita 9
AE - Emirati Arabi Uniti 8
CL - Cile 8
TH - Thailandia 8
TT - Trinidad e Tobago 8
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
CR - Costa Rica 5
KZ - Kazakistan 5
NP - Nepal 5
PE - Perù 5
AM - Armenia 4
ET - Etiopia 4
GR - Grecia 4
KE - Kenya 4
PA - Panama 4
PH - Filippine 4
RO - Romania 4
TN - Tunisia 4
AL - Albania 3
AO - Angola 3
AZ - Azerbaigian 3
CG - Congo 3
DK - Danimarca 3
EE - Estonia 3
HN - Honduras 3
HR - Croazia 3
JM - Giamaica 3
MD - Moldavia 3
MM - Myanmar 3
NI - Nicaragua 3
PT - Portogallo 3
RS - Serbia 3
TG - Togo 3
TW - Taiwan 3
UY - Uruguay 3
BY - Bielorussia 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 19.600
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Città #
Ann Arbor 1.244
Woodbridge 1.082
Dallas 1.003
Singapore 719
Houston 664
Ashburn 640
Fairfield 618
Jacksonville 569
Chandler 510
San Jose 471
Hefei 373
Hong Kong 330
Wilmington 322
Beijing 309
Seoul 292
Seattle 273
Columbus 198
Cambridge 196
Princeton 191
Izmir 180
Council Bluffs 167
Boardman 161
Santa Clara 156
Chicago 134
Los Angeles 131
Dearborn 130
Buffalo 106
Dublin 101
Ho Chi Minh City 101
Sofia 97
Milan 93
Zgierz 93
The Dalles 91
Lauterbourg 88
Hanoi 84
Moscow 72
Munich 71
Amsterdam 68
New York 64
Trieste 53
London 52
São Paulo 44
Helsinki 42
Mestre 42
Verona 39
Brussels 38
Grafing 38
San Diego 37
Warsaw 37
Düsseldorf 36
Frankfurt am Main 34
Tokyo 33
Kocaeli 28
Nanjing 26
Phoenix 26
Shanghai 25
Bern 23
North Bergen 23
Bremen 22
Guangzhou 22
Orem 22
Paris 22
Montreal 21
Abidjan 19
Toronto 19
Des Moines 18
Da Nang 17
Ottawa 17
San Francisco 17
Sacile 16
Turku 16
Chennai 15
Atlanta 14
Dakar 14
Haiphong 14
Nanchang 14
Redwood City 14
Brooklyn 13
Casablanca 13
Norwalk 13
Stockholm 13
Tashkent 13
Baghdad 12
Bonn 12
Hangzhou 12
Jinan 12
West Jordan 12
Kunming 11
Redondo Beach 11
Denver 10
Falls Church 10
Johannesburg 10
Mumbai 10
Rio de Janeiro 10
Vienna 10
Washington 10
Zurich 10
Brno 9
Mexico City 9
Philadelphia 9
Totale 13.455
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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 840
1,3,4-Oxadiazine derivatives versus open-chain isomers from reactions of 2-amino-cyc1o-2-hexen-1-ones with aryl acyldiimides 821
1-Arylsulfonylamino-1,2,3-triazole derivatives from functionalized 1,2-cyclohexandiones 418
A combined experimental and computational strategy in the assignment of absolute configurations of 4-methyl-5-oxo-tetrahydrofuran-3-carboxylic acids and their esters 384
7-oxo-4,5,6,7-tetrahydroindole Derivatives from Nitro-olefins and Secondary a-keto enamines. 331
1-Substituted morpholino ethenes—III. Carbocyclic and Aliphatic Heterocyclic Compounds from 5-Membered Ring Derivatives 312
A study of the enantiopreference of Lipase PS (Pseudomonas cepacia) towards diastereomeric dihydro-5-alkyl-4-hydroxymethyl-2(3H)-furanones 308
A Chemoenzymatic Synthesis of Optically Active Aza Analogues of Quercus Lactones 298
A short and convenient chemoenzymatic synthesis of both enantiomers of 3-phenylGABA and 3-(4-chlorophenyl)GABA (Baclofen) 296
Chemoenzymatic synthesis of optically active 4-methyl-tetrahydro-5-oxo-Furancarboxylic acids and esters 278
Baker's Yeast reduction of 4-hetero-2-(2-nitroethyl)cyclohexanones 275
Octaline and decalone derivatives from a new annulation reaction in enamine field 274
BAKER'S YEAST REDUCTION OF CYCLIC DELTA-KETOESTERS.SYNTHESIS AND CHIROPTICAL PROPERTIES OF CONDENSED DELTA-LACTONES 267
A Facile Route To Polysubstituted 2-Hydroxy-3-nitrocyclopentanones via a Linear alpha-Ketoenamine 266
Application of 1,3-azomethine ylides derived from alfa-dicarbonyl compounds and L-proline to the synthesis of pyrrolizidines 261
Baker's Yeast Reduction of 2-(2-Nitroethyl)-1-cycloalkanones 261
Vinylamines XIV. Nitroalkylation of enamine equilibrium mixtures 261
α-Nitrostyrene. First reactions with enamines 259
A convenient chemoenzymatic synthesis of (R)-(-) and (S)-(+)-homo-beta-proline 256
A chemoenzymatic approach to the synthesis of enantiomerically pure aza analogues of paraconic acid methyl ester and both enantiomers of methyl β-proline 255
Vinylamines XV. Unusual stereochemical course in nitroalkylation of biased enaminic systems 253
[3 + 2] Carbocyclization Reactions of Linear -Ketoenamines with Conjugated Nitroolefins 244
Synthesis of (+)- and (–)-Phaseolinic Acid by Combination of Enzymatic Hydrolysis and Chemical Transformations with Revision of the Absolute Configuration of the Natural Product 241
ENANTIOMERICALLY PURE TETRAHYDRO-5-OXO-2-FURANCARBOXYLIC ESTERS FROM DIALKYL 2-OXOGLUTARATES 239
A facile chemoenzymatic approach to chiral non-racemic beta-alkyl-gamma-amino acids and 2-alkylsuccinic acids.A concise synthesis of (S)-(+)-Pregabalin 235
Asymmetric Resolution of Diasteroisomeric 4-Ethoxycarbonyl-5-pentyl-gamma-butyrolactones by Crude PLE-mediated Hydrolysis 233
A Novel Short Approach to (Z)-Pulchellalactam Through TMC-ATRC of 1-Isopropyl-2-propenyl Dichloroacetate 231
Chemoenzymatic synthesis of diastereomeric ethyl g-benzyl paraconates and determination of the absolute configurations of their acids 224
Cyclopentaannulation Reactions between Nitrocycloalkenes and Diacetyl Morpholino Enamine 224
Reactions of Fischer's base with cyclic and acyclic conjugated nitroolefins and nitrovinylethers 221
Microbial bioreductions of g- and d-ketoacids and their esters 220
Condensed 2-pyrrolidinone-1,2-oxazines from lithium enolate of 1-benzyl-5-oxo-3-pyrrolidinecarboxylic acid and beta-aryl,beta-nitroenamines 219
3-Amino-5.6-dihydro-4H-thiopyran l.l-dioxides. Reactivity with diethyl azodicarboxylate and some α,β-unsaturated ketones 217
The first kinetic enzymatic resolution of methyl ester of C75 209
Synthesis of all stereoisomers of cognac lactones via microbial reduction and enzymatic resolution strategies 207
Synthesis of Polysubstituted Pyrrolizidines from Proline Derivatives and Conjugated Nitroolefins 203
SYNTHESIS AND BIOLOGICAL RESOLUTION OF CONDENSED BICYCLIC ISOPARACONIC ACID DERIVATIVES 203
Unusual ring-chain tautomerism in some cyclic nitronic esters 202
Cyclic nitronic esters from highly diastereoselective cycloaddition of 2-(4-morpholinyl)norbornene to conjugated nitroolefins. 201
Bicyclic 1,2-Oxazine-N-oxides. Different behaviour in ring fission between systems derived from 5- and 6-membered ring cyclic enamines 200
Carbo- and Heterocyclization Reactions of 2-(4-Morpholinyl)-1-phenylpropene and Nitroolefins 197
Reactivity of Conjugated Azoalkenes towards alpha-Amino Acid Ethyl Esters 195
Electrophilic attack on biased isomeric nitroalkylated enamines. Stereospecific hydrolyses of the resulting adducts 192
Chemoenzymatic synthesis of enantioenriched 5-oxo-tetrahydro-3-furancarboxylic acid derivatives 191
On the reactivity of some 2-methyleneindolines with b-nitroenamines, a-nitroalkenes and 1,2-diaza-1,3-butadienes 190
Synthesis of optically active condensed gamma-lactones from 2-(2-nitroethyl)cyclohexanols. Part II 187
Synthesis of optically active a-benzyl paraconic acids and their esters and assignment of their absolute configuration 187
Organocatalyzed synthesis of chiral non-racemic 1,4-dihydropyridazines 186
Synthesis and CD study of optically active bicyclic gamma-lactones belonging to the m-menthane series 183
Esterase-mediated synthesis of optically active GABA analogues containing a stereogenic all-carbon quaternary carbon atom 183
Synthesis of optically active 1,2,3-substituted 4,5,6,7-tetrahydro-7H-indolones 181
Kinetic Enzymatic Resolution of Alkyl tetrahydro-4-methylene-2-alkyl-5-oxo-3-furancarboxylates 175
Biotransformations in the synthesis of 2-pyrrolidinones and 2-pyrrolinones 173
Studying enzyme enantioselectivity using combined ab initio and free energy calculations: alfa-chymotrypsin and methyl cis- and trans-5-oxo-2-pentylpirrolidine-3-carboxylates 172
SYNTHESIS OF ENANTIOMERICALLY PURE BICYCLIC CONDENSED DELTA-LACTONES VIA MICROBIAL REDUCTION AND ENZYMIC RESOLUTION STRATEGIES 170
Chemoenzymatic and yeast-catalysed synthesis of diastereomeric ethyl gamma-phenyl and gamma-(n-pyridyl)paraconates 170
Vinylamines X. Selectivity and stereochemistry of the reactions of 2-methylcyclohexanone enamines with ethylazodicarboxylate and phenylisocyanate 170
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 169
Mechanism and stereochemistry of kinetically controlled reactions of 2-substituted-cyclohexanone enamines with diethylazodicarboxylate 167
Highly Diastereoselective Synthesis of Cyclic Nitronic Esters from 1-(4-Morpholinyl)-1-phenylpropene with Nitroolefins 166
Stereochemical aspects of a substituted bicyclo[4.2.0]octane 164
Computational studies on the enantioselectivity of alpha-chymotrypsin towards beta-carbomethoxy-gamma-lactams. 163
Structure and Nucleophilic Behaviour of Secondary and Tertiary Enaminosulfones 163
Rapid efficient route to 3-hydroxy-o-phenylenediamine derivatives and derived benzoxazolines 162
Structure and•reactivity of enamines derived from 5,6-dihydro-2H-thiopyran-3(4H)-one 1,1-dioxide 161
Cycloaddition vs. conjugative Michael-type addition of 2-ethoxy-3-morpholinobuta-1,3-diene with nitroolefins 160
Benzoxazol-2(3H)-one and 1,3,4-oxadiazol-2(3H)-one derivatives from substituted enaminones and ketoenamines 160
Tautomerism in enamines from 2-tetralone. Difference in nucleophilic behaviour between morpholino and pyrrolidino enamines 159
Oxidation and Reduction of Enamines 158
Vinylamines XI. Structure and reactivity of 2-carbalkoxy-, 2-acyl- and 2- phenyl-cyclohexanone enamines with ethylazodicarboxylate and phenylisocyanate 157
Mononitroalkylations of Butane-2,3-dione 156
Diastereo- and Enantio-selective Cyclopentaannulations from Diacetyl Monoimines and Nitroalkenes 156
First Chemoenzymatic Synthesis of (+)-2-Carboxypyrrolidineacetic Acid, the Nucleus of Kainoid Amino Acids. 156
Enantiomerically pure beta,gamma-disubstituted gamma-lactams: Enzyme-mediated synthesis and computational studies 154
The crystal and molecular structure of the adduct from the stereoisomeric equilibrium mixture of racemic 2-(α-phenyl, β-nitro)ethyl-4-t-butylcyclohexanone 149
l-Substituted morpholino ethenes. III. Carbocyclic and aliphatic heterocyclic compounds from 5-membered ring derivatives 146
Lack of stereoselectivity in the formation of thietane 1,1-dioxide derivative from anancomeric amino cycloalkenes 143
Vinylamines XII. Equilibrium in enamines from 3-substituted cyclohexanone: high selectivity of β-nitrostyrene towards the Δ6 isomers 143
Recent Aspects of the Synthesis of Enantiopure 5-oxo-tetrahydro-3-furan carboxylic acids 142
Enamines and ynamines in The chemistry of functional groups.SupplementF: The chemistry of amino,nitroso and nitro compounds and their derivatives 139
Enamines and Ynamines 139
Lipase-catalyzed deacetylation of botryodiplodin acetate 138
Nitroalkylation Reactions of Methyl 2-(4-Morpholinyl)acrylate. Synthesis of alpha,omega-Dioxoesters 135
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 133
Enantioselectivity of alpha-chytripsyn towards 4,5-disubstituted-gamma-lactams: a new perspective from molecular simulations 133
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] 131
Ring contraction reactions of bicyclic nitronic esters 130
Nucleophilic behaviour of enamines derived from 2-methyl-5,6-dihydro-2H-thiopyran-3(4H)-one l,l-dioxide 126
Ionization energies of some amines and enamines and an estimation of their relative basicities in gaseous phase 123
Oxidations and reduction of enamines in The chemistry of enamines, The chemistry of functional groups 122
Optically active alpha-phenylethylamine as efficient organocatalyst in the solvent-free reactions between 2,3-butanedione and conjugated nitroolefins 119
Nucleophilic behaviour of l-substituted morpholino ethenes 112
Nitroalkylation and nitroalkenylation reactions of gamma-lactone enolates. A facile ring switch from polysubstituted gamma-lactones to polysubstituted gamma-lactams 107
Polyfunetionalized 1(2H)-hexahydropentalenones by rearrangement of bicyelie 1,2-oxazine N-oxide derivatives 106
ENZYMIC RESOLUTION OF AN ALFA-METHYLENE-GAMMA-LACTONIC ESTER 85
Totale 19.881
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Categoria #
all - tutte 53.152
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 53.152
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Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
2021/20221.149 0 0 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
2025/20265.811 536 551 1.216 454 404 505 636 144 506 602 184 73
2026/2027591 123 274 194 0 0 0 0 0 0 0 0 0
Totale 19.881