CHIMICHI, STEFANO
 Distribuzione geografica
Salva come PNG Salva come JPEG
Continente #
NA - Nord America 7.352
EU - Europa 3.538
AS - Asia 774
AF - Africa 38
SA - Sud America 38
Continente sconosciuto - Info sul continente non disponibili 1
Totale 11.741
Salva come PNG Salva come JPEG
Nazione #
US - Stati Uniti d'America 7.305
RU - Federazione Russa 1.308
IE - Irlanda 440
SE - Svezia 426
UA - Ucraina 426
SG - Singapore 264
IT - Italia 260
DE - Germania 236
HK - Hong Kong 175
GB - Regno Unito 149
FI - Finlandia 107
CN - Cina 96
IN - India 79
VN - Vietnam 79
PL - Polonia 78
JO - Giordania 53
CH - Svizzera 49
CA - Canada 46
FR - Francia 37
BR - Brasile 32
SC - Seychelles 27
TR - Turchia 16
CI - Costa d'Avorio 6
BG - Bulgaria 5
NL - Olanda 5
CO - Colombia 3
ES - Italia 3
KR - Corea 3
ID - Indonesia 2
LU - Lussemburgo 2
MA - Marocco 2
AT - Austria 1
BD - Bangladesh 1
BE - Belgio 1
BO - Bolivia 1
CL - Cile 1
CM - Camerun 1
EU - Europa 1
GR - Grecia 1
IL - Israele 1
IR - Iran 1
JP - Giappone 1
KG - Kirghizistan 1
LV - Lettonia 1
MU - Mauritius 1
MY - Malesia 1
PA - Panama 1
PE - Perù 1
PK - Pakistan 1
PT - Portogallo 1
RO - Romania 1
RS - Serbia 1
ZA - Sudafrica 1
Totale 11.741
Salva come PNG Salva come JPEG
Città #
Santa Clara 2.284
Fairfield 742
Jacksonville 586
Chandler 440
Dublin 440
Woodbridge 343
Ashburn 318
Seattle 313
Cambridge 272
Wilmington 265
Houston 216
Singapore 209
Ann Arbor 117
Princeton 105
Hong Kong 86
Boardman 81
Buffalo 79
Dong Ket 77
Warsaw 76
Boston 66
Mumbai 63
Medford 58
Bern 48
Milan 39
Shanghai 36
Frankfurt Am Main 32
Kent 31
Ottawa 31
Altamura 29
Florence 29
Lawrence 29
San Diego 29
Norwalk 26
Auburn Hills 18
Los Angeles 18
Moscow 16
Verona 15
Hillsboro 14
Philadelphia 13
Beijing 11
Toronto 11
Andover 10
São Paulo 10
Falls Church 9
Izmir 9
New York 8
West Jordan 8
Abidjan 6
Helsinki 6
Laurel 6
Redwood City 6
Yubileyny 6
Americana 5
London 5
Saint Petersburg 5
Sofia 5
Amiens 4
Clifton 4
Munich 4
North Bergen 4
Prato 4
Rome 4
Champaign 3
Guangzhou 3
Montréal 3
Pittsburgh 3
Port Jefferson Station 3
San Mateo 3
Venice 3
Bogotá 2
Hanoi 2
Hyderabad 2
Jakarta 2
Krakow 2
Leawood 2
Luxembourg 2
Old Bridge 2
Padova 2
Phoenix 2
Pune 2
Rabat 2
Redmond 2
Rio de Janeiro 2
Romola 2
Salerno 2
San Jose 2
São José do Rio Preto 2
Tappahannock 2
Valladolid 2
Varedo 2
Vicopisano 2
Washington 2
Amman 1
Ankara 1
Aracaju 1
Arnsberg 1
Athens 1
Augusta 1
Bagno A Ripoli 1
Bishkek 1
Totale 7.914
Salva come PNG Salva come JPEG
Nome #
1,1,2,2-tetraacetylcyclopropane: a versatile source of heterocyclic and homocyclic derivatives 377
1,2,3.4-tetrahydro-1,2-diazepine derivatives from isoxazolo[3,4-d]pyridazin-7-(6H)-ones 206
Suzuki and Heck Processes for the Synthesis of New Anthraquinone-Based Glycoconjugated Dyes 202
1H and 13C NMR Study of the Pyrazolo[1,5-a]pyrimidine System 160
The preparation of coumaric acids via styrylisoxazoles 156
Carbon-13 NMR Studies on Azolopyridines. 3-The Isothiazolopyridine Systems 153
1-PHENYLPYRIDAZINO[4,5-D]PYRIDAZINE 147
Synthesis of a small azacage which can selectively encapsulate a lithium ion in aqueous solution. 145
THERMAL DECOMPOSITION OF IBUPROXAM 138
Azabenzoxazoles: synthesis of 3-methylisoxazolo[5,4-c]- and 2-methyloxazolo[5,4-c]pyridines 137
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 136
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] 136
POLYAZAHETEROCYCLIC COMPOUNDS: CONDENSATION REACTIONS OF PYRIDAZINE-4,5-DI¬CARBOXYLIC ACID DERIVATIVES WITH O-PHENYLENEDIAMINE 135
Preparation of Chloro-α-truxillic acids via 3-Methyl-4-Nitro-5-Styrylisoxazole Photodimers 134
Diazaarynes: 3,4- and 4,5-Didehydropyridazine by electron impact and thermolytic fragmentation of the corresponding dicarboxylic anhydrides 134
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 133
Role of Guanine Nucleotides as Endogenous Ligands of a Kainic Acid Binding Site Population in the Mammalian Cerebellum 131
Carbon-13 NMR Studies on Azolopyridines. 2-The Oxazolopyridine Systems 131
Aromatic Isothiazolopyridines: New Direct Synthetic Approaches 131
Carbon-13 nuclear magnetic resonance study of a new ring-chain tautomerism of some pyridazine derivatives 131
New 5-(2-ethenylsubstituted)-3(2H)-furanones with in vitro antiproliferative activity 130
Regio- and stereoselective reductions of dehydrocholic acid 128
Structure Determination of Regioisomeric Fused Heterocycles by the Combined Use of 2D NMR Experiments and GIAO DFT 13C Chemical Shifts 127
Unambiguous structure elucidation of the reaction products of 3-acyl-4-methoxy-1-methylquinolinones with hydroxylamine via NMR spectroscopy 126
A convenient synthesis of psoralens 126
A new convenient route to 2-oxoethoxycoumarins: key intermediates in the synthesis of natural products 125
The preparation of arylpropiolic acids via styrylisoxazoles 125
Synthetic Investigation on Isothiazolo[5,4-b]- and [4,5-c]-pyridines 123
First Example of Diels-Alder Reaction of 4-(1-Ethenylsubstituted)-3-methylisoxazoles with Acetylenedicarboxylates 123
A New Entry to Pyrazolo[1,5-a]pyrido[3,4-e]pyrimidine Derivatives 123
GIAO DFT 13C/15N chemical shifts in regioisomeric structure determination of fused pyrazoles 121
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 . 120
Synthesis and photobiological properties of bromo- and alkoxymethyl furocoumarins 119
New Cyclohexane- and Cyclohexene-1,3-diones from Tetraacetylethylene 118
Farnesyloxycoumarins, a New Class of Squalene Hopene Cyclase Inhibitors 117
Synthesis, cytotoxicity, and apoptosis induction in human tumor cells by geiparvarin analogues 116
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 115
Oxygen-17 nuclear magnetic resonance study of some five-membered heterocyclic derivatives 115
A new convenient route to enantiopure 2-coumarinyloxypropanals: application to the synthesis of optically active geiparvarin analogues 115
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 114
Preparation of 5,6,7,8-Tetrahydro-7-Aryl-3-Methylisoxazolo[4,5-b]azepin-5(4H)-ones 113
Carbon-13 NMR study of isoxazolopyridine systems 113
Unambiguous Structure Determination of Some Pyrazolo[1,5-a]pyrimidine Deri-vatives by Multinuclear NMR Spectroscopy 113
New heterospiro-ring systems by condensation of some heterocyclic o-dicarboxylates with 1,3-diphenylguanidine 112
Synthesis and structure of some 1-(2-thienylmethyl)-1H-imidazole derivatives as potential antimicrobial agents 111
Pyrazolo[1,5-a]pyrido[3,4-e]pyrimidine: a New Heterocyclic Ring System 110
Synthesis and Biological Evaluation of New Geiparvarin Derivatives 110
Natural and Synthetic Geiparvarins Are Strong and Selective MAO-B Inhibitors. Synthesis and SAR Studies 109
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 109
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 109
SPIROCYCLISATION REACTIONS OF DIETHYL PYRIDAZINE-4,5-DICARBOXYLATE WITH 1,3-BINUCLEOPHILES 109
Carbon-13 NMR Studies on Azolopyridines. 4-The Thiazolopyridine Systems 109
A New Spiro Annelation Reaction in the Isoxazole Series: Applications and Limits 108
Differential Substituent Effects in 4-X-Acetophenones and 4-X-2,6-Dimethylacetophenones: Basicity Constants (pKBH+) and 17O Chemical Shifts 107
Solid State Photoreactivity of (E)-α-Cyano-2-methoxycinnamate 107
An Analysis of the Substituent Effects on 13C and 17O NMR Chemical Shifts of Some 5-Substituted 2-Acetylthiophenes by Linear Free Energy Relationships 106
Potassium Exchanged Layered Zirconium Phosphate as catalyst in the preparation of 4H-Chromenes 105
New Functionalized Pyrazoles from Isoxazolopyridazinones 105
Synthesis and fluorescence of some thiazole and benzothiazole derivatives 104
Synthesis, Structural Determination and Photo-antiproliferative Activity of New 3-Pyrazolyl or -Isoxazolyl Substituted 4-Hydroxy-2(1H)-quinolinones 104
On the reactivity of 6-acetyl-7-(2-dimethylaminovinyl)pyrazolo[1,5-a]pyrimidines with 1,3- and 1,4-bisnucleophiles 104
New pyrazolo[3,4-b]pyridine and pyrazolo[3,4-d] pyrimidine Derivatives from 4-Acetyl-5-amino-1,3-diphenylpyrazole 102
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 102
Monoalkylation of dihydroxycoumarins via Mitsunobu dehydroalkylation under High Intensity Ultrasound. The synthesis of Ferujol. 102
Microwave-assisted reaction of glycosylamine with aspartic acid 102
Preparation of 18O-bilabeled aliphatic acids via isoxazole derivatives 101
Heteroacylsilanes: synthesis and synthetic potentialities of new nucleophilic acylating agents 101
The reactivity of 3-methyl-4-nitro-5-stiyrylixoxazole with some bis-enolisable ketones 100
New Geiparvarin Analogues from 7-(2-Oxoethoxy)coumarins as Effective in vitro Antitumoral Agents 99
Regioselective Synthesis of 4-Acetyl- and 5-Acetyl-3-methylisoxazole: their Conversion into Silyl- and Methyl Enol Ethers 99
RING-CHAIN ISOMERISM OF SOME 4,5-DISUBSTITUTED PYRIDAZINES INVOLVING HETERO-SPIRO-COMPOUNDS 99
Complete assignment of the 1H and 13C NMR spectra of Secoisolariciresinol Diglucoside (SDG): a mammalian lignan precursor isolated from Linum Usitatissimum 98
New Difunctionalized 4-Nitroisoxazoles from a-Nitroacetophenone Oxime 97
Pyrazolo[1',5':1,6]pyrimido[4,5-d]pyridazin-7(6H)-one: a New Heterocyclic Ring System from Isoxazolopyridazinones 97
A New Facile Synthesis of 5-Aminopyridazine-4-carboxylic Acid 96
Permanganate oxidation of 3-methyl-4-nitro-5-styrylisoxazole: a correction 96
On the Nitration of 5-Phenyl- and 3-Methyl-5-Phenylisoxazoles 95
Synthesis and characterization of the cage 12,17-dioxa-1,5,9-triazabicyclo[7.5.5]nonadecane. Its basicity and complexing properties. 95
Ring transformation of 5H-1,2-diazepinones into pyrazoles 95
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 95
Unambiguous structure determination of some pyrazolo [1,5‐a]pyrimidine derivatives by multinuclear NMR spectroscopy 94
Preparation of mono-labelled aliphatic polyacids via isoxazole derivatives 93
15N NMR: Substituent Effect Analysis in para- and meta-Substituted Phenylhydrazines 92
Triethylammonium 8-Acetyl-3-Methyl-9-Phenyl-7-Oxo-2-Azaspiro[4,5]dec-2-en-4-Nitronate 91
Chemical Characterisation of Degraded Wood in Ships Discovered in a Recent Excavation of the Etruscan and Roman Harbour of Pisa 91
Preparation of 18O-Bilabelled Aliphatic Acids via Isoxazole Derivatives 90
Reactivity of pyridazine4,5-dicarboxylic acid anhydride towards 1,4-binucleophiles: new spirocyclisation reactions 89
New phthalazine and pyridazino[4,5-g]phthalazine derivatives 89
Solid State Photodimerisation Reaction of Some 3-Styrylisoxazolo[3,4-d]pyrida-zin-7(6H)-ones 88
Configuration isomerism of coordinated tetraazamacrocycles. Crystal and molecular structure of carbonato(1,7-dimethyl-1,4,7,10-tetraazacyclododecane)cobalt(III)perchlorate 87
Microwave-assisted reaction of building blocks for glycopeptides synthesis. 87
CHEMISTRY OF SUBSTITUTED PYRAZOLO[1,5-A]PYRIMIDINES. PART 3. A LITERATURE CORRECTION ON THE BASIS OF 13C NMR SPECTROSCOPY. 86
Reaction of some Antiinflammatory 17-(2-aminooxazol-4-yl) steroids with Hydrogen Peroxide. Synthesis of Steroid-17-spiro-5'-oxazolidine-2',4'-diones 86
Synthesis of 17-(2-oxo-4-imidazolin-4-yl) Derivatives from Cortexone and Cortisone 85
Preparation of 18O-Bilabelled Carboxylic Acids: Cinnamic and Phenylpropiolic Acids via Styrylisoxazoles 84
Kinetics of the Enolisation Reactions of 2-Acetylpyrrole and of 2-, 4-, and 5-Acetylthiazoles 83
Isolation and characterization of an unknown flavonoid in dry extracts from passiflora incarnata 81
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 80
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 80
Chemical Characterisation of Wood of Roman Ships Brought to Light in the Recently Discovered Ancient Harbour of Pisa (Tuscany, Italy) 80
Totale 11.463
Salva come PNG Salva come JPEG
Categoria #
all - tutte 27.631
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 27.631
Salva come PNG Salva come JPEG


Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
2019/20201.118 0 0 0 0 0 262 185 263 161 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
2024/20254.284 127 513 315 772 1.830 727 0 0 0 0 0 0
Totale 11.765