AZZENA, Ugo Gavino
 Distribuzione geografica
Continente #
EU - Europa 1298
NA - Nord America 1281
AS - Asia 787
Continente sconosciuto - Info sul continente non disponibili 10
OC - Oceania 6
SA - Sud America 5
AF - Africa 1
Totale 3388
Nazione #
US - Stati Uniti d'America 1276
CN - Cina 696
UA - Ucraina 601
DE - Germania 215
SE - Svezia 165
IT - Italia 125
FI - Finlandia 98
TR - Turchia 58
GB - Regno Unito 50
BE - Belgio 11
IN - India 10
IR - Iran 10
RO - Romania 9
EU - Europa 7
FR - Francia 7
JP - Giappone 7
AU - Australia 5
CA - Canada 5
MD - Moldavia 4
A2 - ???statistics.table.value.countryCode.A2??? 3
BR - Brasile 3
DK - Danimarca 2
PT - Portogallo 2
RU - Federazione Russa 2
SA - Arabia Saudita 2
AR - Argentina 1
BD - Bangladesh 1
BG - Bulgaria 1
CH - Svizzera 1
CL - Cile 1
EE - Estonia 1
ES - Italia 1
GR - Grecia 1
IL - Israele 1
KR - Corea 1
NG - Nigeria 1
NL - Olanda 1
NZ - Nuova Zelanda 1
RS - Serbia 1
SG - Singapore 1
Totale 3388
Città #
Jacksonville 374
Princeton 218
Nanjing 187
Chandler 178
Dearborn 118
Wilmington 92
Ann Arbor 77
Nanchang 74
Sassari 70
Beijing 53
Woodbridge 52
Izmir 51
Changsha 44
Tianjin 43
Hebei 41
Shenyang 39
Zhengzhou 32
Jinan 28
Ningbo 25
Jiaxing 23
Andover 22
Hangzhou 20
Kunming 20
Taizhou 20
San Mateo 15
San Francisco 12
Guangzhou 11
Brussels 10
Augusta 9
Boardman 9
Haikou 9
Norwalk 9
Ardabil 7
Auburn Hills 5
Changchun 5
Chisinau 4
Fuzhou 4
Toronto 4
Falls Church 3
Lanzhou 3
London 3
Mumbai 3
Redmond 3
Shanghai 3
Tokyo 3
Ashburn 2
Canberra 2
Fairfield 2
Helsinki 2
Horia 2
Houston 2
Los Angeles 2
Monmouth Junction 2
Mountain View 2
Paris 2
Riyadh 2
Rome 2
Taiyuan 2
Wuppertal 2
Abuja 1
Alexandria 1
Amsterdam 1
Auckland 1
Belgrade 1
Borås 1
Cambridge 1
Cedar Knolls 1
Charlotte 1
Chittagong 1
Città Di Castello 1
Copenhagen 1
Cupertino 1
Dalian 1
Frankfurt Am Main 1
Frankfurt am Main 1
Hefei 1
Istanbul 1
Ivanovo 1
Jinhua 1
Laurel 1
Leawood 1
Markham 1
Media 1
Melbourne 1
Milan 1
Nanning 1
New York 1
Newark 1
Ormeau 1
Padova 1
Pescara 1
Phoenix 1
Qingdao 1
Quartu Sant'elena 1
Saint Louis 1
Santa Clara 1
Sofia 1
São Paulo 1
Tallinn 1
Vancouver 1
Totale 2104
Nome #
1,2-Diaryl-1,2-disodioethanes: Versatile, Highly Reactive, and Tunable Synthetic Equivalents of Sodium Metal 67
A New and Highly Effective Organometallic Approach to 1,2-Dehalogenations and Related Reactions 61
Reductive Lithiation of Alkoxy-substituted Benzyl Methyl Ethers and Connection with Cross-coupling Reactions 60
Microwave-assisted carbamoylation of amines 53
Regio- and stereochemistry of Na-mediated reductive cleavage of alkyl aryl ethers 52
1,2-Bis(phenylsulphonyl)alkenes as Versatile Groups in Organic Synthesis 51
The Effect of Topologically Controlled Coulombic Interactions on the Regioselectivity of the Reductive Cleavage of Alkyl Phenyl Ethers 49
Heterogeneous acidic catalysts for the tetrahydropyranylation of alcohols and phenols in green ethereal solvents 48
UN’ALTERNATIVA “GREEN” AL TOLUENE 45
Cyclopentyl methyl ether-NH4X: a novel solvent/catalyst system for low impact acetalization reactions 44
Generation of g-Oxy-Substituted Benzyllithium Derivatives by Reductive Lithiation of 4-Phenyl-1,3-dioxanes 43
Reductive lithiation of 1,3-dimethyl-2-arylimidazolidines 42
Cyclopentyl methyl ether: an elective eco-friendly ethereal solvent in classical and modern organic chemistry 41
Structure of 3,4-Bis(phenylthio)-Cyclobutene-1,2-dione 40
REACTIONS OF PHENYL(ARYLSULFONYL)ACETYLENES WITH OLEFINS AND DIENES 39
Single and Double Reductive Cleavage of C-O Bonds of Aromatic Acetals and Ketals: Generation of Benzylic Mono- and Dicarbanions 39
Vinyl Cations in Organic Synthesis. Part 2. A Novel Synthesis of Methylene-1H-indenes (Benzofulvenes) by Cyclisation of Phenyl-Substituted But-1-en-3-ynes 39
Optically Active Heteroaromatic Compounds. IX. The Synthesis of Monoalkyl-Substituted Optically Active Pyridines 39
Chemoselective efficient synthesis of functionalized β-oxonitriles through cyanomethylation of Weinreb amides 39
Tuning the Reducing Properties of 1,2-Diaryl-1,2-disodiumethanes 38
Metalation of arylmethyl alkyl ethers 38
Reducing properties of 1,2-dipyridyl-1,2-disodioethanes: chemical validation of theoretical and electrochemical predictions 38
Reductive Cleavage of N-Substituted 2-Aryl- l,3-oxazolidines: Generation of alfa-Amino-Substituted Carbanions 38
Sintesi di 2,5-dialchilresorcinoli e di combrestatine mediante reazioni di metallazione riduttiva 38
Addressing Stereochemistry of Heterocyclic Compounds by DFT NMR Calculations 38
Active-alkali metal-promoted reductive cleavage of chlorinated phenol 37
Silica Gel Stabilized Na and Na/K Alloys: Highly Effective, Versatile and Environmentally Friendly Reducing Agents 37
Electron-Transfer-Induced Reductive Demethoxylation of Anisole: Evidence for Cleavage of a Radical Anion 37
Reductive Electrophilic Substitution of Pyrogallol Derivatives: Synthesis of 2,3-Disubstituted Phenols 37
m-Terphenyl Ethers, a New Hydroxy Protecting Group Cleavable under Reductive Electron Trasfer Reaction Conditions 36
Attivazione e Impiego di Metalli Alcalini in Solventi a Basso Impatto Ambientale 36
A New Synthesis of 1-n-Alkyl-3,5-dimethoxybenzenes (Olivetol Dimethyl Ether and Homologs 36
Ammonium salts catalyzed acetalization reactions in green ethereal solvents 36
LITIAZIONE REGIO- E STEREOSELETTIVA DI COMPLESSI BORANO-N-ALCHIL-2-FENILAZIRIDINA 36
ALFA-LITHIATION OF METHOXYMETHYL ARYLMETHYL ETHER: SCOPE AND LIMITATIONS 36
Conversion of Ferriosilanes to Ferriosilanols by Selective Oxidation of the SiH Function by Dimethyldioxirane 36
Regioselective 4-Demethoxylation of 1-n-Alkyl-3,4,5-trimethoxybenzenes: a Key Step in the Synthesis of Olivetol and its Homologues 35
Generation and Reactivity of a-Amino-Substituted Arylmethyllithium Organometallics 35
METALATION OF ARYLMETHYL METHYL ETHERS AND CONNECTION WITH THEIR REDUCTIVE ELECTROPHILIC SUBSTITUTION 35
An Improved Synthesis of 7,8-Bis(methylene)-bicyclo(2.2.2)octa-2,5-diene 35
Wittig Rearrangement of Aromatic Acetals and Ketals Induced by Reductive Electron Transfer 35
Synthesis of Antibiotic Stilbenes by Reductive Metalation of 3,4,5-Trimethoxybenzaldehyde Dimethyl Acetal", Synthetic Communications, 33, 1309-1317 (2003) 35
Application of the Anionic Homologous Fries-Rearrangement to the Synthesis of 3-Alkylbenzofuran-2(3H)-ones 35
Reductive Cleavage of Diarylalkyl Methyl Ethers by Electron Transfer from Alkali Metals 34
Eliminazioni riduttive di composti 1,2-disostituiti: un nuovo approccio organometallico 34
New hydroxyl protective groups removable under SET conditions 34
Electron-transfer-induced reductive cleavage of phthalans: Reactivity and synthetic applications 34
Synthesis and reductive cleavage of m-terphenyl and 2,6-dimethoxyphenyl alkyl ethers 34
Computational NMR as Useful Tool for Predicting Structure and Stereochemistry of Four-Membered Sulfur Heterocycles 34
Synthesis of Optically Active Chloro Alkanoic Esters 33
Reductive Lithiation and Multilithiated Compounds in Synthesis 33
Active-sodium-promoted Reductive Cleavage of Halogenated Benzoic Acids 33
Generation of Aryl- and Arylmethyl Carbanions by the Reductive Cleavage of Alkoxy-Substituted Aromatic Compounds 33
Reductive Electrophilic Substitution of Diarylmethyl Methyl Ethers: Synthetic Applications 33
Competition between Reducing and basic Properties of 1,2-Dialryl-1,2-disodiumethanes 32
Design and synthesis of bis-amide and hydrazide-containing derivatives of malonic acid as potential HIV-1 integrase inhibitors 32
Single Electron Transfer Reductive Cleavage of the Aryl-Nitrogen Bond in Phenyl-Substituted Dimethylanilines 32
Regioselective Reductive Demethoxylation of 3,4,5-Trimethoxystilbenes 32
REGIOSELECTIVITY IN THE REDUCTIVE CLEAVAGE OF PYROGALLOL DERIVATIVES - REDUCTIVE ELECTROPHILIC SUBSTITUTION OF ACETALS OF 2,3-DIMETHOXYPHENOL 31
Reductive Metalationof 1,2-Diaryl-substituted Ethenes: Synthetic Applications 31
Nuove ed efficienti sintesi dell'Idrossistirolo e di suoi derivati via ossifunzionalizzazione di precursori naturali 31
MODIFICAZIONI CHIMICHE DEL CARVACROLO, IL CHEMOTIPO PREDOMINANTE DELL’OLIO ESSENZIALE DI THYMUS HERBA-BARONA LOISEL DELLA SARDEGNA 31
Regioselective Reductive Electrophilic Substitution of 1,2,3-Trimethoxybenzene and Its 5-Alkyl-Substituted Homologues 30
Practical Generation of 3,5-Dimethoxybenzyllithium: Application to the Synthesis of 5-Substituted-Resorcinols 30
Direct Metalation of Methoxymethyl Arylmethyl Ethers: A Tin-free Approach to the Generation of α-Alkoxyalkoxy-substituted Aryllithiums 30
REDUCTIVE ELECTROPHILIC SUBSTITUTION OF PHTHALANS AND RING EXPANSION TO ISOCHROMAN DERIVATIVES 30
Dichotomy in the Double Bond Reactivity of 2,3-Bis(phenylsulphonyl)bicyclo-(2.2.1)hepta-2,5-diene and Related Compounds 30
Alkali Metal-mediated Synthesis of 1- and 4-Substituted N-Alkyl-1,2,3,4-tetraidroisoquinolines 29
Electron.trasfer-induced Reductive Cleavage of Chlorinated Aryloxyalkanoic Acids 29
Electron-Transfer-Induced Reductive Dealkoxylation of Alkyl Aryl Ethers. III. Reductive Cleavage of Methoxy-Substituted N,N-Dimethylanilines 29
Riduzione regioselettiva del 3,4,5-trimetossibenzil metil etere: sintesi di Resorcinoli 2,5-dialchilsostituiti 29
Diastereoselective Electrophilic Substitution of a-Amino-Substituted Benzylic Organometals 29
Reducing Properties of 1,2-Disodium-1,2-diarylethanes 29
Active-alkali metal promoted reductive desulfurization of dibenzothiophene and its hindered analogues 29
Diastereoselective Electrophilic Substitution of g-Oxy-Substituted Benzyllithiums", Tetrahedron Letters, 43, 5137-5139 (2002) 28
Models of Thioredoxin Hairpin Structures: Conformational Properties of beta-Turn Containing Sequences 28
Reactivity of Arylic Carbanions Generated by Reductive Cleavage of C-N Bond of N,N-Dimethylanilines 28
Reductive Metalation of 1,2-Diaryl-substituted Ethenes: Synthetic Applications 28
Reducing versus Basic Properties of 1,2-Diaryl-1,2-disodiumethanes 28
Electron-transfer-induced reductive dealkoxylation of alkyl aryl ethers .2. Reductive cleavage of isomeric dimethoxybenzenes 27
Stereospecific Friedel-Crafts Alkylation of Aromatic Compounds: Synthesis of Optically Active 2- and 3-Arylalkanoic Esters 27
Regioselective Reductive Electrophilic Substitution of Derivatives of 3,4,5-Trimethoxybenzaldehyde 27
Tuning the Reducing Properties of 1,2-Diaryl-1,2-Disodiumethanes 27
Organometallic Compounds in Organic Synthesis 27
Reductive lithiation of arylalkyl methyl ethers 27
BH3-promoted Stereoselective beta-Lithiation of N-Alkyl-2-phenylaziridines 27
A green solvent approach to the chemistry of 1,2-diaryl-1,2-disodioethanes 26
Nenitzescu Synthesis of 5-Hydroxyindoles with Zinc, Iron and Magnesium Salts in Cyclopentyl Methyl Ether 26
Benzylic Organometals via Reductive Metalation Procedures 26
Diastereoselective Alkylation of a-Amino-Substituted Benzyllithiums, Tetrahedron Letters 25
Regioselective Reductive Alkylation of 1,2,3-Trimethoxybenzene 25
Regioselectivity in Arene-Catalyzed Reductive Lithiation of Acetals of Chlorobenzaldehydes 25
Ion Pairing Effects on the Regioselectivity of Arylic vs. Benzylic C-O Bond Reductive Cleavage: Synthetic Applications 24
Reductive Cleavage of Benzannelated Cyclic Ethers and Amines: Synthetic Applications 24
Reducing versus Basic Properties of 1,2-Diaryl-1,2-disodiumethanes 24
Regioselective Reductive Alkylation of 3,4,5-Trimethoxybenzalbehyde Dimethyl Acetal: a New Synthesis of 4-Alkyl-3,5-Dimethoxybenzaldehydes and 2,5-Dialkyl-1,3-Dimethoxybenzenes 23
Visible-Light Photoredox-Catalyzed Amidation of Benzylic Alcohols 16
Metallazione riduttiva di 1,2-diarileteni: applicazioni sintetiche 14
Size Selectivity in the Hydroxylation of Esters of Unsaturated Fatty Acids 12
Tuning the reducing properties of 1,2-diaryl-1,2-disodiumethanes 12
Totale 3369
Categoria #
all - tutte 5822
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 5822


Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
2017/201881 0000 07 327 31436
2018/2019541 58912 41159 5318 080228
2019/20201019 2483827 94110 21812 109271063
2020/2021774 10001225 10333 1017 1031156718
2021/2022549 66258 63 2739 554179218
2022/2023314 1205814122 00 00 0000
Totale 3436