ORENA, Mario
 Distribuzione geografica
Continente #
NA - Nord America 11.117
EU - Europa 5.702
AS - Asia 4.077
SA - Sud America 827
AF - Africa 162
Continente sconosciuto - Info sul continente non disponibili 94
OC - Oceania 4
Totale 21.983
Nazione #
US - Stati Uniti d'America 11.007
SG - Singapore 1.502
RU - Federazione Russa 1.445
UA - Ucraina 914
VN - Vietnam 798
BR - Brasile 626
CN - Cina 622
DE - Germania 537
SE - Svezia 520
IT - Italia 519
IE - Irlanda 436
DK - Danimarca 340
HK - Hong Kong 332
FR - Francia 319
FI - Finlandia 303
TR - Turchia 245
GB - Regno Unito 224
KR - Corea 187
IN - India 84
BD - Bangladesh 65
CI - Costa d'Avorio 62
AR - Argentina 60
CA - Canada 41
IQ - Iraq 38
BE - Belgio 35
JP - Giappone 34
MX - Messico 33
ZA - Sudafrica 29
CO - Colombia 28
EC - Ecuador 28
PK - Pakistan 28
CL - Cile 24
ID - Indonesia 22
NL - Olanda 22
MA - Marocco 20
PY - Paraguay 19
PL - Polonia 18
ES - Italia 17
KE - Kenya 16
PH - Filippine 16
VE - Venezuela 16
MY - Malesia 13
UZ - Uzbekistan 12
AE - Emirati Arabi Uniti 9
DZ - Algeria 9
SA - Arabia Saudita 9
BO - Bolivia 8
EG - Egitto 8
LT - Lituania 8
UY - Uruguay 7
EU - Europa 6
JM - Giamaica 6
NP - Nepal 6
PE - Perù 6
TH - Thailandia 6
IL - Israele 5
JO - Giordania 5
KZ - Kazakistan 5
LB - Libano 5
PA - Panama 5
AL - Albania 4
BH - Bahrain 4
CR - Costa Rica 4
CZ - Repubblica Ceca 4
ET - Etiopia 4
KW - Kuwait 4
MD - Moldavia 4
PR - Porto Rico 4
PT - Portogallo 4
SN - Senegal 4
AU - Australia 3
BG - Bulgaria 3
CH - Svizzera 3
DO - Repubblica Dominicana 3
GY - Guiana 3
HN - Honduras 3
IR - Iran 3
LU - Lussemburgo 3
PS - Palestinian Territory 3
RO - Romania 3
SV - El Salvador 3
TN - Tunisia 3
TW - Taiwan 3
AZ - Azerbaigian 2
BY - Bielorussia 2
EE - Estonia 2
GE - Georgia 2
HU - Ungheria 2
KG - Kirghizistan 2
NG - Nigeria 2
NI - Nicaragua 2
QA - Qatar 2
RS - Serbia 2
SR - Suriname 2
TT - Trinidad e Tobago 2
AM - Armenia 1
AO - Angola 1
AT - Austria 1
AW - Aruba 1
BA - Bosnia-Erzegovina 1
Totale 21.877
Città #
Dallas 1.706
Chandler 1.097
Des Moines 993
Singapore 939
Jacksonville 911
Ashburn 898
Boardman 455
San Jose 441
Dublin 436
Council Bluffs 392
Fairfield 346
Hong Kong 307
Ho Chi Minh City 251
Wilmington 227
The Dalles 204
Hanoi 199
New York 198
San Mateo 186
Lawrence 183
Princeton 183
Woodbridge 182
Ann Arbor 150
Lauterbourg 150
Seattle 147
Beijing 137
Hefei 137
Moscow 133
Houston 131
Cambridge 121
Munich 106
Los Angeles 104
Helsinki 96
Centro 65
Abidjan 62
Milan 62
San Diego 59
São Paulo 55
Santa Clara 47
Washington 41
Buffalo 40
Haiphong 40
Da Nang 38
Orem 36
Brussels 29
Shanghai 29
Chicago 27
Tokyo 27
Turin 26
Chennai 25
Easley 25
Norwalk 22
Turku 20
Ancona 19
Warsaw 17
Frankfurt am Main 16
London 16
Manchester 16
Redmond 16
Wuhan 16
Belo Horizonte 15
Curitiba 15
Guangzhou 15
Marche 15
Nairobi 15
Rio de Janeiro 15
Phoenix 14
Atlanta 13
Baghdad 13
Biên Hòa 12
Brooklyn 12
Edinburgh 12
Hải Dương 12
Rome 12
Stockholm 12
Ankara 11
Campinas 11
Johannesburg 11
Lahore 11
San Francisco 11
Tashkent 11
Amsterdam 10
Boston 10
Brasília 10
Can Tho 10
Charlotte 9
Izmir 9
Medellín 9
Nha Trang 9
Pescara 9
Quito 9
Yiwu 9
Cape Town 8
Denver 8
Jiaxing 8
Montreal 8
Salt Lake City 8
Thái Bình 8
Toronto 8
Auburn Hills 7
Belém 7
Totale 13.478
Nome #
1,3-Oxazin-2-ones vs. Tetrahydrofurans by Iodocyclisation of 2-Alkoxycarbonyl amino-3-alken-1-ols 2.266
A short approach to chaetomellic anhydride A from 2,2-dichloropalmitic acid: elucidation of the mechanism governing the functional rearrangement of the chlorinated pyrrolidin-2-one intermediate 275
Highly stable atropisomers by electrophilic amination of a chiral γ-lactam within the synthesis of an elusive conformationally restricted analogue of α-methylhomoserine 176
A new Synthesis of (R)-GABOB and (R)-Oxiracetam 169
A New, Convenient Improvement of a Selective Silylation-desilylation Sequence in Polyhydroxylated Compounds by Means of Polymeric Reagents 167
Synthesis, structural insights and activity of different classes of biomolecules 166
A new conformationally restricted mimetic of dipeptide EG: synthesis of an analogue of FEG 164
A Bifunctional β-Isocupreidine Derivative as Catalyst for the EnantioselectiveMorita–Baylis–Hillman Reaction and a Mechanistic Rationale forEnantioselectivity 160
Novel nucleoside analogs tethered on (3R,4R)-4-(hydroxymethyl)pyrrolidin-3-ol 159
Analogues of both Leu- and Met-enkephalin containing a constrained dipeptide isostere prepared from a Baylis-Hillman adduct 156
Homochiral oxazolidin-2-ones and imidazolidin-2-ones by tandem nucleophilic addition-conjugate addition 154
A New Synthesis of 2,2'-Dialkylchrom-3-enes and Flav-3-enes 152
A New Synthetic Approach to 3-Amino-1,2-diols from Allylic Alcohols via Trichloroacetimidates 148
A novel conformationally restricted analogue of 3-methylaspartic acid via stereoselective methylation of chiral pyrrolidin-2-ones 145
Synthesis and structural assignment of diastereomerically pure N-substituted 4-alkylpyrrolidin-2-ones, intermediates for the preparation of 3-alkylpyrrolidines in both enantiomerically pure forms 144
Recent Advances in Chemistry of γ-Lactams: Part II. Functionalization by C-C or C-Heteroatom Bond Formation 144
A new regio- and stereoselective functionalization of allylic and homoallylic alchols 142
Alchilazione e ossidrilazione stereoselettiva di pirrolidin-2-oni 4-sostituiti 142
A New Synthesis of Aminodiols and Hydroxyaziridines by Using Acetate and Carbonate Ions on Polymeric Support 140
Synthesis of Aminoalcohols via Perihydro-1,3-oxazin-2-ones and Absolute Configuration Assignment through MM2 Calculations 140
Chemo-enzymatic approach to biologically active non proteinogenic amino acids 140
Analogues of nucleosides: synthesis of chiral pyrrolidin-2-ones or pyrrolidines-bearing nucleobases 140
Studio teorico di solfoniluree: reazioni di idrolisi e SAR 139
Oxidation of Alcohols with Chromium Trioxide in Hexamethylphosphoric Triamide 137
Chiral 3-hydroxypyrrolidin-2-ones. Part 2. Stereodivergent synthesis of conformationally restricted analogues of beta-homoserine 136
beta-Peptoids: synthesis of a novel dimer having a fully extendedconformation 135
a-methylene-b-trichloroacetylamino alkanoates from trichloroacetimidates of the Baylis-Hillman adducts 135
Recent Advances in Chemistry of γ-Lactams: Part I. Synthesis Starting from Acyclic or Cyclic Precursors 133
A New Regio- and Stereoselective Functionalisation of Allylic and Homoallylic Alcohols 132
A Novel, Efficient Synthesis of (+)-erythro-Sphingosine 131
A New Synthesis of Both the Enantiomers of 4-Amino-3-hydroxybutanoic Acid (GABOB) and MM2 Calculations for Rotamers of the Intermediate Oxazolidin-2-ones 131
Chiral 3-hydroxypyrrolidin-2-ones from a Baylis–Hillman adduct: convergent, stereoselective synthesis of a glycosidase inhibitor 130
A New Approach to (+)-2-Amino-2-deoxytetritols Derivatives 129
Procedimento per preparare la daunosamina e prodotti intermedi 128
A Stereoselective Approach to both 3,4-trans-Disubstituted Pyrrolidin-2-ones and Pyrrolidines. A Convenient Synthesis of (3R,4R)-4-Benzyl-3-pyrrolidinecarboxylic Acid 128
Synthesis of Malyngolide, an Antibiotic from the Marine Blue-green Alga Lyngbya majuscula Gomont 127
4,5-Disubstituted Pyrrolidin-2-ones starting from D-Xylose 127
A convenient approach to diastereomerically pure 1,3,4-trisubstituted pyrrolidin-2-ones by intramolecular cyclisation of N-(2-alken-1-yl)amides mediated by Mn(III). An entry to both (R)- and (S)-3-pyrrolidineacetic acid 126
A New Approach to the Synthesis of Enantiomerically Pure 2,3-Diaminoacids through Chiral Imidazolidin-2-ones 125
A New, Enantioselective Approach to both (R)- and (S)-endo-Norbornenemethanol 125
Polymer Supported Reagents. Chromic Acid on Anion Exchange Resin. Synthesis of Aldehydes and Ketones from Allylic and Benzylic Halides 125
Iodocyclofunctionalisation of 1-Trichloroacetimido-2(E)-alkenes. Synthesis of (+)-erythro- Sphinganine Triacetate 125
Imidazolidinone-Tethered α-Hydrazidopeptides – Synthesis and Conformational Investigation 125
Synthesis of Enantiopure Isosteres of Amino Acids Containing a Quaternary Stereocenter: Experimental and Computational Evaluation of a Novel Class of Atropisomers 125
Recent Approaches to both 3-Azabicyclo[3.1.0]hexanes and 3-Azabicyclo[3.2.0]heptanes 124
Synthesis, conformation and biological activity of linear and cyclic Thr6-bradykinin analogues containing N-benzylglycine in place of phenylalanine 123
A Stereoselective Synthesis of 12-Acetoxy-1,3(E)-dodecadiene, the Sex Pheromone of Diparopsis Castanea Hampson 123
Conformationally Restricted Analogues of both (S)-beta-Homoserine and (S)-Aspartic Acid from Chiral 3-Acylamino Pyrrolidin-2-ones 123
Diastereoselective Alkylation of 3-Acylimidazolidin-2-ones: Synthesis of (R)- and (S)-Lavandulol 122
A new, diastereoselective approach to (R)-GABOB 122
A Stereospecific Synthesis of Dehydronerol Isovalerate, a Component of Anthemisia Montana L. 121
Synthesis of Compounds Containing the Isoprene Unit. A Stereospecific Synthesis of beta-Ionilideneacetic Acid and Dehydro-beta-ionilideneacetic Acid, a Key Intermediate to Abscisic Acid 121
A New Approach to 2-Phenylthioalcohols in High Optical Purity 121
Chromic Acid on Anion Exchange Resins. A Simple and Practical Oxidation of Alcohols to Aldehydes and Ketones 120
Interazioni enzima-substrato di inibitori della acetolattato sintetasi 120
Direct Amination. Part IV. Reaction of Indoles with Primary Aromatic Amines and Iodosobenzene Diacetate 120
Steric constraints against [3,3]-sigmatropic rearrangement of allylic azides. A convenient approach to β-L-4-aminopent-2-enoglyceropyranosides 119
Conjugate intra- and intermolecular addition mediated by methoxide anion on polymeric support 119
Stereodivergent Baylis-Hillman reaction of a chiral acryloyl imide exploiting ion-chelation effect: mechanistic insight on the rearrangement of trichloroacetimidates of the Baylis-Hillman adducts to the trichloroacetamides 119
Sintesi diastereoselettiva di pirrolidin-2-oni 3,4-trans-disostituiti attraverso una reazione di Michael 119
Efficient conversion of the Baylis-Hillman adducts to alpha-methylene-beta-trichloroacetylamino alkanoates 117
Iodociclizzazione stereoselettiva di 3-acilammino-2-metilene alcanoati: sintesi di analoghi dell’N-benzoil-syn-fenilisoserina 117
Chiral gamma-lactams from a Baylis-Hillman adduct: convergent, stereoselective synthesis of a glycosidase inhibitor 117
A Stereoselective Synthesis of (Z)-13-Hexadecen-11-ynyl acetate, the Sex Pheromone of Thaumetopoea pityocampa (Lepidoptera, Notodontidae) 116
An Efficient Synthesis of (R)-(+)- and (S)-(-)-Propranolol from Resolved 5-Iodomethyloxazolidin-2-ones 116
Simple amphiphilic α-hydrazido acids: Rational design, synthesis, and in vitro bioactivity profile of a novel class of potential antimicrobial compounds 116
Simple Methods for Oxidation of o-Allylphenols to Chrom-3-enes 115
Enantioselective Synthesis of 2-Benzyloxyalcohols and 1,2-Diols via Alkylation of Chiral Glycolate Imides. A Convenient Approach to Optically Active Glycerol Derivatives 114
Novel enantiomerically pure 2-amino-1,4-diols from chiral 4-hydroxymethyl-5-iodo-1,3-oxazin-2-ones 114
Sintesi degli acidi (R)- e (S)-3-pirrolidinacetico attraverso reazioni di Michael intramolecolari 114
A Regio- and Stereoselective Synthesis of Methyl alpha-L-Ristosaminide Hydrochloride 113
Sintesi di amminoacidi ad attività biologica attraverso reazioni di ciclizzazione 113
Hydrolysis of sulfonylureas: a theoretical and experimental study 113
Synthesis and structural characterization as 12-helix of the hexamer of a β-amino acid tethered to a pyrrolidin-2-one ring 113
Synthesis of Oxazolidin-2-ones Using Carbonate Ion on a Polymeric Support 112
Sintesi di diammine enantiomericamente pure 112
Synthesis of Rhodinose Using Supported Carbonate Anion 110
DIRECT AMINATION. PART 4. REACTIONS OF INDOLES WITH PRIMARY AROMATIC AMINES AND IODOSOBENZENE DIACETATE, HETEROCYCLES 110
Pyrrolidin-2-one-based beta-amino acids as a helical backbone 110
Theoretical study on the hydrolysis of sulfonylureas 109
A Novel Synthesis of alpha-Hydroxyketones and gamma- or delta-Ketoesters from Cyclic Iodocarbonates and Iodolactones 108
Amination Reactions Promoted by Electrophiles 108
Synthesis of a cyclic isostere of α-methyl homoserine by a stereoselective acylation–alkylation sequence of a chiral γ-lactam 108
"(3R)- and (3S)-Methylpiperazine-2,5-dione Derivatives as Useful Intermediates in the Enantioselective Synthesis of a-Amino Esters 108
Highly Regio- and Stereoselective Iodocyclisation of Chiral 3-Alkoxycarbonyl-4-propenyl-2,2-dimethyl-1,3-oxazolidines: a Computational Investigation 107
Sviluppo di un modello recettoriale di inibitori della acetolattato sintetasi 107
From pyrrolidin-2-ones to 3-Aza-2-oxobicyclo[3.2.0]heptanes. Synthesis of both enantiomers of cis-2-aminomethylcyclobutane carboxylic acid, a conformationally restricted analogue of GABA 107
Synthesis of Enantiomerically Pure 3-Amino-2-methylenealkanoates (Aza-Morita–Baylis–Hillman Adducts) Mediated by Cinchona Alkaloids 107
Synthesis of unsaturated β-amino acid derivatives from carbamates of the Baylis-Hillman products 106
Synthesis of (R)-N-Tosyl Emeriamine via Chiral N-Tosylimidazolidin-2-ones 105
Quaternary Centres as a Tool for Modulating Foldamer Conformation 105
Synthesis of (±)-beta-Methyleneaspartic Acid, Inhibitor of Glutamate-aspartate Transaminase 104
Structural Assignment of the Dianion of 3-Methylbut-2-enoic Acid 104
CYCLOCARBAMATION REACTIONS OF OLEFINIC COMPOUNDS, EPOXIDES AND AZIRIDINES 104
New Synthesis of 4,5-Dihydro-1,3-oxazoles and 4,5-Dihydro-1,3-oxazines, Useful Intermediates to Enantiomerically Pure Aminodiols 103
Stereocontrolled Cyclofunctionalisations of Double Bonds through Heterocyclic Intermediates 103
Utilizzo di composti elemento-organici in sintesi organica - anno 1987 103
Influence of Structure on the Antioxidant Activity of Indolinic Nitroxide Radicals 103
Stereocontrolled Reactions through Cyclic Intermediates 102
Sintesi stereoselettiva di pirrolidin-2-oni attraverso reazioni di addizione coniugata 102
Totale 14.754
Categoria #
all - tutte 85.784
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 85.784


Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
2021/20221.204 0 338 9 91 8 66 41 93 65 104 87 302
2022/20233.626 265 199 264 271 242 1.272 10 231 666 14 127 65
2023/20241.531 267 35 84 232 254 267 33 88 2 55 6 208
2024/20252.346 164 208 203 22 44 43 293 98 620 128 189 334
2025/20268.035 353 787 1.333 605 572 463 1.247 633 1.153 501 172 216
2026/2027502 286 216 0 0 0 0 0 0 0 0 0 0
Totale 21.983