CHIMICHI, STEFANO
 Distribuzione geografica
Continente #
NA - Nord America 4.782
EU - Europa 2.244
AS - Asia 421
AF - Africa 30
SA - Sud America 17
Continente sconosciuto - Info sul continente non disponibili 1
Totale 7.495
Nazione #
US - Stati Uniti d'America 4.736
IE - Irlanda 440
SE - Svezia 426
UA - Ucraina 426
IT - Italia 252
DE - Germania 235
HK - Hong Kong 174
GB - Regno Unito 149
FI - Finlandia 104
VN - Vietnam 79
PL - Polonia 78
CN - Cina 64
JO - Giordania 52
CH - Svizzera 49
CA - Canada 46
FR - Francia 37
RU - Federazione Russa 33
SC - Seychelles 27
BR - Brasile 16
SG - Singapore 16
TR - Turchia 15
IN - India 14
BG - Bulgaria 5
NL - Olanda 4
KR - Corea 3
AT - Austria 1
BE - Belgio 1
CL - Cile 1
CM - Camerun 1
ES - Italia 1
EU - Europa 1
IR - Iran 1
JP - Giappone 1
MU - Mauritius 1
MY - Malesia 1
PK - Pakistan 1
PT - Portogallo 1
RO - Romania 1
RS - Serbia 1
ZA - Sudafrica 1
Totale 7.495
Città #
Fairfield 742
Jacksonville 586
Chandler 440
Dublin 440
Woodbridge 343
Ashburn 317
Seattle 312
Cambridge 272
Wilmington 265
Houston 216
Ann Arbor 117
Princeton 105
Hong Kong 86
Boardman 81
Buffalo 79
Dong Ket 77
Warsaw 76
Boston 66
Medford 58
Bern 48
Milan 39
Shanghai 36
Frankfurt Am Main 32
Kent 31
Ottawa 31
Altamura 29
Lawrence 29
San Diego 29
Florence 27
Norwalk 26
Auburn Hills 18
Verona 15
Hillsboro 14
Philadelphia 13
Los Angeles 11
Toronto 11
Andover 10
Beijing 10
Falls Church 9
Izmir 9
São Paulo 9
New York 8
Singapore 8
West Jordan 8
Laurel 6
Redwood City 6
Americana 5
London 5
Saint Petersburg 5
Sofia 5
Amiens 4
Clifton 4
Munich 4
Prato 4
Rome 4
Champaign 3
Guangzhou 3
Helsinki 3
Montréal 3
Moscow 3
Pittsburgh 3
Port Jefferson Station 3
San Mateo 3
Venice 3
Hanoi 2
Hyderabad 2
Krakow 2
Leawood 2
North Bergen 2
Old Bridge 2
Padova 2
Phoenix 2
Redmond 2
Salerno 2
San Jose 2
Tappahannock 2
Varedo 2
Vicopisano 2
Washington 2
Ankara 1
Aracaju 1
Arnsberg 1
Augusta 1
Bagno A Ripoli 1
Brooklyn 1
Brussels 1
Canosa Di Puglia 1
Chiswick 1
Empoli 1
Gothenburg 1
Grafing 1
Grande Prairie 1
Grevenbroich 1
Hebei 1
Imamachi 1
Islington 1
Ivry-sur-Seine 1
Kilburn 1
Latina 1
Lausanne 1
Totale 5.318
Nome #
1,1,2,2-tetraacetylcyclopropane: a versatile source of heterocyclic and homocyclic derivatives 304
Suzuki and Heck Processes for the Synthesis of New Anthraquinone-Based Glycoconjugated Dyes 161
1,2,3.4-tetrahydro-1,2-diazepine derivatives from isoxazolo[3,4-d]pyridazin-7-(6H)-ones 152
1H and 13C NMR Study of the Pyrazolo[1,5-a]pyrimidine System 121
Carbon-13 NMR Studies on Azolopyridines. 3-The Isothiazolopyridine Systems 107
1-PHENYLPYRIDAZINO[4,5-D]PYRIDAZINE 104
The preparation of coumaric acids via styrylisoxazoles 104
Synthesis of a small azacage which can selectively encapsulate a lithium ion in aqueous solution. 101
A Description of the Effects of Silyl vs Alkyl Substituents in Ketones in the Light of Oxygen-17 NMR Data and with the Help of Qualitative MO Theory 100
Lithium binder in aqueous solution. Synthesis and characterization of the new cage 4,10,15-trimethyl-1,4,7,10,15-pentaazabicyclo[5.5.5]heptadecane (l). Protonation and lithium complex formation. crystal structures of [HL][BPh4] and [LiL][BPh4] 95
POLYAZAHETEROCYCLIC COMPOUNDS: CONDENSATION REACTIONS OF PYRIDAZINE-4,5-DI¬CARBOXYLIC ACID DERIVATIVES WITH O-PHENYLENEDIAMINE 94
Diazaarynes: 3,4- and 4,5-Didehydropyridazine by electron impact and thermolytic fragmentation of the corresponding dicarboxylic anhydrides 92
THERMAL DECOMPOSITION OF IBUPROXAM 91
CHEMISTRY OF SUBSTITUTED PYRAZOLO[1,5-A]PYRIMIDINES PART 4. A STRUCTURAL CORRECTION OF A SERIES OF PYRAZOLO[5',1':2,3]PYRIMIDO[5,4-D][1,2]DIAZEPINES ON THE BASIS OF NMR SPECTROSCOPY AND X-RAY DIFFRACTION ANALYSIS . 89
An Analysis of Substituent Effects on the Carbon-13 and Oxygen-17 NMR Chemical Shifts of Some Phenylthiophen-2-ylmethanones by Linear Free Energy Relationships 89
Regio- and stereoselective reductions of dehydrocholic acid 88
Aromatic Isothiazolopyridines: New Direct Synthetic Approaches 86
A New Entry to Pyrazolo[1,5-a]pyrido[3,4-e]pyrimidine Derivatives 86
Azabenzoxazoles: synthesis of 3-methylisoxazolo[5,4-c]- and 2-methyloxazolo[5,4-c]pyridines 86
Preparation of Chloro-α-truxillic acids via 3-Methyl-4-Nitro-5-Styrylisoxazole Photodimers 85
New 5-(2-ethenylsubstituted)-3(2H)-furanones with in vitro antiproliferative activity 83
Carbon-13 NMR Studies on Azolopyridines. 2-The Oxazolopyridine Systems 83
Carbon-13 nuclear magnetic resonance study of a new ring-chain tautomerism of some pyridazine derivatives 83
Unambiguous structure elucidation of the reaction products of 3-acyl-4-methoxy-1-methylquinolinones with hydroxylamine via NMR spectroscopy 83
Structure Determination of Regioisomeric Fused Heterocycles by the Combined Use of 2D NMR Experiments and GIAO DFT 13C Chemical Shifts 83
A convenient synthesis of psoralens 83
New Cyclohexane- and Cyclohexene-1,3-diones from Tetraacetylethylene 83
Synthetic Investigation on Isothiazolo[5,4-b]- and [4,5-c]-pyridines 82
Unambiguous Structure Determination of Some Pyrazolo[1,5-a]pyrimidine Deri-vatives by Multinuclear NMR Spectroscopy 80
Differential Substituent Effects in 4-X-Acetophenones and 4-X-2,6-Dimethylacetophenones: Basicity Constants (pKBH+) and 17O Chemical Shifts 78
Complete 1H (600 MHz) and 13C NMR spectral assignments of 3,4-bis[(3,4-dimethoxyphenyl)-methyl]dihydro-(3R-trans)-2(3H)-furanone (matairesinol dimethyl ether), a naturally occurring dibenzylbutyrolactone lignan 78
A new convenient route to 2-oxoethoxycoumarins: key intermediates in the synthesis of natural products 77
Farnesyloxycoumarins, a New Class of Squalene Hopene Cyclase Inhibitors 77
Synthesis and photobiological properties of bromo- and alkoxymethyl furocoumarins 77
First Example of Diels-Alder Reaction of 4-(1-Ethenylsubstituted)-3-methylisoxazoles with Acetylenedicarboxylates 77
GIAO DFT 13C/15N chemical shifts in regioisomeric structure determination of fused pyrazoles 77
Pyrazolo[1,5-a]pyrido[3,4-e]pyrimidine: a New Heterocyclic Ring System 76
The preparation of arylpropiolic acids via styrylisoxazoles 75
New heterospiro-ring systems by condensation of some heterocyclic o-dicarboxylates with 1,3-diphenylguanidine 75
Regioselective Synthesis of 4-Acetyl- and 5-Acetyl-3-methylisoxazole: their Conversion into Silyl- and Methyl Enol Ethers 74
Synthesis, cytotoxicity, and apoptosis induction in human tumor cells by geiparvarin analogues 74
Synthesis of the Cage Penta-azamacrobicycloalkane 12,17-Dimethyl-1,5,9,12,17-penta-azabicyclo[7.5.5]nonadecane, its Basicity, and Metal Complex Formation. Crystal Structure of the Copper (II) Perchlorate Complex 74
Carbon-13 NMR study of isoxazolopyridine systems 73
New pyrazolo[3,4-b]pyridine and pyrazolo[3,4-d] pyrimidine Derivatives from 4-Acetyl-5-amino-1,3-diphenylpyrazole 72
Oxygen-17 nuclear magnetic resonance study of some five-membered heterocyclic derivatives 72
A new convenient route to enantiopure 2-coumarinyloxypropanals: application to the synthesis of optically active geiparvarin analogues 72
New Functionalized Pyrazoles from Isoxazolopyridazinones 72
Role of Guanine Nucleotides as Endogenous Ligands of a Kainic Acid Binding Site Population in the Mammalian Cerebellum 71
Synthesis and Biological Evaluation of New Geiparvarin Derivatives 71
SPIROCYCLISATION REACTIONS OF DIETHYL PYRIDAZINE-4,5-DICARBOXYLATE WITH 1,3-BINUCLEOPHILES 70
Microwave-assisted reaction of glycosylamine with aspartic acid 70
Pyridazine-4,5-dicarboxylic anhydride: a versatile synthon for the preparation of 1,3,7,8-tetraazaspiro[4,5]decane derivatives with nitrogen 1,3-binucleophiles 69
Synthesis and structure of some 1-(2-thienylmethyl)-1H-imidazole derivatives as potential antimicrobial agents 68
A New Spiro Annelation Reaction in the Isoxazole Series: Applications and Limits. Part 2. Reactivity of Ethyl 4-Nitro-3-Phenylisoxazole-5-Carboxylate with Nitrogen Binucleophiles 67
Regioselective Synthesis of 2,5-Dihydro-4H-pyrazolo[4,3-c]quinolin-4-ones by the Cyclization of 3-Acyl-4-methoxy-1-methylquinolinones with Hydrazines 67
Synthesis and fluorescence of some thiazole and benzothiazole derivatives 67
An Analysis of the Substituent Effects on 13C and 17O NMR Chemical Shifts of Some 5-Substituted 2-Acetylthiophenes by Linear Free Energy Relationships 67
Potassium Exchanged Layered Zirconium Phosphate as catalyst in the preparation of 4H-Chromenes 67
On the Nitration of 5-Phenyl- and 3-Methyl-5-Phenylisoxazoles 65
Pyrazolo[1',5':1,6]pyrimido[4,5-d]pyridazin-7(6H)-one: a New Heterocyclic Ring System from Isoxazolopyridazinones 65
Natural and Synthetic Geiparvarins Are Strong and Selective MAO-B Inhibitors. Synthesis and SAR Studies 64
On the reactivity of 6-acetyl-7-(2-dimethylaminovinyl)pyrazolo[1,5-a]pyrimidines with 1,3- and 1,4-bisnucleophiles 64
Preparation of 5,6,7,8-Tetrahydro-7-Aryl-3-Methylisoxazolo[4,5-b]azepin-5(4H)-ones 63
Unambiguous structure determination of some pyrazolo [1,5‐a]pyrimidine derivatives by multinuclear NMR spectroscopy 63
RING-CHAIN ISOMERISM OF SOME 4,5-DISUBSTITUTED PYRIDAZINES INVOLVING HETERO-SPIRO-COMPOUNDS 63
Complete assignment of the 1H and 13C NMR spectra of Secoisolariciresinol Diglucoside (SDG): a mammalian lignan precursor isolated from Linum Usitatissimum 62
A New Spiro Annelation Reaction in the Isoxazole Series: Applications and Limits 62
Preparation of mono-labelled aliphatic polyacids via isoxazole derivatives 62
Synthesis, Structural Determination and Photo-antiproliferative Activity of New 3-Pyrazolyl or -Isoxazolyl Substituted 4-Hydroxy-2(1H)-quinolinones 62
Ring transformation of 5H-1,2-diazepinones into pyrazoles 61
Monoalkylation of dihydroxycoumarins via Mitsunobu dehydroalkylation under High Intensity Ultrasound. The synthesis of Ferujol. 61
Carbon-13 NMR Studies on Azolopyridines. 4-The Thiazolopyridine Systems 61
Solid State Photoreactivity of (E)-α-Cyano-2-methoxycinnamate 60
Chemical Characterisation of Degraded Wood in Ships Discovered in a Recent Excavation of the Etruscan and Roman Harbour of Pisa 60
CHEMISTRY OF SUBSTITUTED PYRAZOLO[1,5-A]PYRIMIDINES. PART 3. A LITERATURE CORRECTION ON THE BASIS OF 13C NMR SPECTROSCOPY. 58
Heteroacylsilanes: synthesis and synthetic potentialities of new nucleophilic acylating agents 58
The reactivity of 3-methyl-4-nitro-5-stiyrylixoxazole with some bis-enolisable ketones 57
Selective Lithium encapsulation in aqueous solution by the new cage 4,10-dimethyl-1,4,7,10,15-pentaazabicyclo[5.5.5]heptadecane (L). Synthesis, characterization, and structural aspects. Crystal structures of [liL][ClO4] and [CuL]Br2.3H2O 57
Preparation of 18O-bilabeled aliphatic acids via isoxazole derivatives 57
15N NMR: Substituent Effect Analysis in para- and meta-Substituted Phenylhydrazines 56
New Geiparvarin Analogues from 7-(2-Oxoethoxy)coumarins as Effective in vitro Antitumoral Agents 55
Kinetics of the Enolisation Reactions of 2-Acetylpyrrole and of 2-, 4-, and 5-Acetylthiazoles 53
A New Facile Synthesis of 5-Aminopyridazine-4-carboxylic Acid 51
New phthalazine and pyridazino[4,5-g]phthalazine derivatives 51
Synthesis and characterization of the cage 12,17-dioxa-1,5,9-triazabicyclo[7.5.5]nonadecane. Its basicity and complexing properties. 49
Chemical Characterisation of Wood of Roman Ships Brought to Light in the Recently Discovered Ancient Harbour of Pisa (Tuscany, Italy) 49
Preparation of 18O-Bilabelled Aliphatic Acids via Isoxazole Derivatives 49
New Difunctionalized 4-Nitroisoxazoles from a-Nitroacetophenone Oxime 48
Triethylammonium 8-Acetyl-3-Methyl-9-Phenyl-7-Oxo-2-Azaspiro[4,5]dec-2-en-4-Nitronate 47
Configuration isomerism of coordinated tetraazamacrocycles. Crystal and molecular structure of carbonato(1,7-dimethyl-1,4,7,10-tetraazacyclododecane)cobalt(III)perchlorate 46
Permanganate oxidation of 3-methyl-4-nitro-5-styrylisoxazole: a correction 46
Reactivity of pyridazine4,5-dicarboxylic acid anhydride towards 1,4-binucleophiles: new spirocyclisation reactions 45
Reaction of some Antiinflammatory 17-(2-aminooxazol-4-yl) steroids with Hydrogen Peroxide. Synthesis of Steroid-17-spiro-5'-oxazolidine-2',4'-diones 45
Isolation and characterization of an unknown flavonoid in dry extracts from passiflora incarnata 44
Solid State Photodimerisation Reaction of Some 3-Styrylisoxazolo[3,4-d]pyrida-zin-7(6H)-ones 43
Synthesis of 17-(2-oxo-4-imidazolin-4-yl) Derivatives from Cortexone and Cortisone 43
Microwave-assisted reaction of building blocks for glycopeptides synthesis. 41
Nitrogen-15 NMR Studies on Hydrazines. 2†—Substituent Effect Analysis in ortho-Substituted Phenylhydrazines and Anilines 40
Chemistry of Substituted Pyrazolo[1,5-a]pyrimidines. Part 5. 7-Oxo-6-[bpyrazol-3’(5’)-yl]-4,7-dihydropyrazolo[1,5-a]pyrimidines from 6-Ethoxycarbonyl-7-(2-dimethylaminovinyl)-pyrazolo[1,5-a]pyrimidines: Elucidation of the Reaction Mechanism through NMR Spectroscopy and X-Ray Diffraction Analysis 39
Synthesis and Tautomerism of Ethyl-4-oxo-1-phenyl-2(phenylimino)-1,3,7,8-te-traazaspiro[4,5]deca-6,9-diene-6-carboxylate 39
Totale 7.346
Categoria #
all - tutte 20.513
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 20.513


Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
2019/20201.830 157 160 24 207 164 262 185 263 161 67 153 27
2020/20211.150 83 48 132 101 22 152 32 132 61 144 44 199
2021/2022678 12 54 20 35 46 44 18 35 55 25 184 150
2022/20231.781 196 169 133 108 184 358 233 79 214 13 35 59
2023/2024589 34 87 115 40 23 72 12 117 2 17 49 21
2024/202538 38 0 0 0 0 0 0 0 0 0 0 0
Totale 7.519