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chemistry, organic (15) 15
index medicus (8) 8
chemistry (7) 7
organic chemistry (7) 7
derivatives (6) 6
molecular structure (6) 6
alkaloids (5) 5
one-pot synthesis (5) 5
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aryl diazonium salts (4) 4
catalysis (4) 4
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fused pyrimidine derivatives (4) 4
heterocyclic compounds (4) 4
humans (4) 4
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ring closure reactions (4) 4
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carboxylic-acids (3) 3
catalysis, phase‐transfer catalysis (3) 3
chemical reactions (3) 3
efficient (3) 3
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human necessities (3) 3
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iron (3) 3
luotonin-a (3) 3
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preparations for medical, dental, or toilet purposes (3) 3
quinoline (3) 3
specific therapeutic activity of chemical compounds ormedicinal preparations (3) 3
2-aminopyridines (2) 2
adult (2) 2
alkynes (2) 2
alpha-bromo (2) 2
amination (2) 2
ammoniak auf ketone (2) 2
animals (2) 2
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benzodiazepine alkaloids (2) 2
bond formation (2) 2
c-h bonds (2) 2
cancer (2) 2
carbon (2) 2
catalyzed synthesis (2) 2
circumdatin-f (2) 2
clean energy (2) 2
concise total-synthesis (2) 2
dehydrogenation (2) 2
enantioselective total syntheses (2) 2
endophytic fungus (2) 2
estrogen (2) 2
female (2) 2
green & sustainable science & technology (2) 2
imidazoles (2) 2
intramolecular proton-transfer (2) 2
iron - chemistry (2) 2
ketones - chemistry (2) 2
ligands (2) 2
male (2) 2
metabolites (2) 2
metal-free (2) 2
microwave irradiation (2) 2
nitrogen atom (2) 2
organic-synthesis (2) 2
oxidation, dehydrogenation (2) 2
oxidative coupling (2) 2
oxidative synthesis (2) 2
phenols - chemistry (2) 2
pot total syntheses (2) 2
quinazolinones - chemistry (2) 2
selective bromination (2) 2
stereoisomerism (2) 2
stereoselective chlorosulfonylation (2) 2
styrenes - chemistry (2) 2
substrates (2) 2
terminal alkynes (2) 2
tertiary-amines (2) 2
tryptanthrin (2) 2
visible-light irradiation (2) 2
-erythro-roccellic acid (1) 1
1,3-dicarbonyl compounds (1) 1
1,4-dihydropyridines (1) 1
1,8-dioxo-decahydroacridines (1) 1
2-naphthols (1) 1
3,4-methylenedioxypyrovalerone mdpv (1) 1
3-sulfenylinodles (1) 1
3‐sulfenylinodles (1) 1
acetamid (1) 1
acetamide (1) 1
acetat (1) 1
acetates (1) 1
acetic acid (1) 1
acridine-derivatives (1) 1
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1. Full Text One pot synthesis of substituted imidazopyridines and thiazoles from styrenes in water assisted by NBS
by Shinde, Mahesh H and Kshirsagar, Umesh A
Green Chemistry, ISSN 1463-9262, 03/2016, Volume 18, Issue 6, pp. 1455 - 1458
Heating of commercially available styrenes with NBS in water followed by reaction with 2-aminopyridines or thioamides afforded important heterocyclic scaffolds... 
2-AMINOPYRIDINES | GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY | AMMONIAK AUF KETONE | CARBON | SELECTIVE BROMINATION | INTRAMOLECULAR PROTON-TRANSFER | IMIDAZOLES | EFFICIENT | DERIVATIVES | CHEMISTRY, MULTIDISCIPLINARY | CYCLIZATION | ALPHA-BROMO | Bromine | Trapping | Synthesis | Oxidants | Styrenes | Heating | Nucleophiles | Scaffolds
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2. Full Text Copper-Catalyzed Intramolecular N-Arylation of Quinazolinones: Facile Convergent Approach to (−)-Circumdatins H and J
by Kshirsagar, Umesh A and Argade, Narshinha P
Organic Letters, ISSN 1523-7060, 08/2010, Volume 12, Issue 16, pp. 3716 - 3719
A copper-catalyzed intramolecular N-arylation of a quinazolinone nucleus that furnished the central benzodiazepine core unit has been demonstrated to... 
NITROGEN-CONTAINING HETEROCYCLES | ROOM-TEMPERATURE | CIRCUMDATIN-F | AMINATION | C-N | ARYL HALIDES | EFFICIENT SYNTHESIS | AMIDATION | CHEMISTRY, ORGANIC | BROMIDES | CYCLIZATION | Copper - chemistry | Benzodiazepinones - chemical synthesis | Stereoisomerism | Molecular Structure | Quinazolinones - chemistry | Catalysis | Benzodiazepinones - chemistry
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3. Full Text Eosin Y photoredox catalyzed net redox neutral reaction for regiospecific annulation to 3-sulfonylindoles via anion oxidation of sodium sulfinate saltsElectronic supplementary information (ESI) available. See DOI: 10.1039/c7ob02977b
by Rohokale, Rajendra S and Tambe, Shrikant D and Kshirsagar, Umesh A
ISSN 1477-0520, 1/2018, Volume 16, Issue 4, pp. 536 - 54
An eosin Y photoredox catalyzed net redox neutral process for 3-sulfonylindoles via the anionic oxidation of sodium sulfinate salts and its radical cascade... 
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4. Full Text One pot synthesis of substituted imidazopyridines and thiazoles from styrenes in water assisted by NBSElectronic supplementary information (ESI) available: Detailed experimental procedures, characterization data and copies of NMR spectra. See DOI: 10.1039/c5gc02771c
by Shinde, Mahesh H and Kshirsagar, Umesh A
ISSN 1463-9262, 3/2016, Volume 18, Issue 6, pp. 1455 - 1458
Heating of commercially available styrenes with NBS in water followed by reaction with 2-aminopyridines or thioamides afforded important heterocyclic scaffolds... 
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5. Full Text Visible-Light-Mediated Eosin Y Photoredox-Catalyzed Vicinal Thioamination of Alkynes: Radical Cascade Annulation Strategy for 2-Substituted-3-sulfenylindoles
: Visible-Light-Mediated Eosin Y Photoredox-Catalyzed Vicinal Thioamination of Alkynes: Radical Cascade Annulation Strategy for 2-Substituted-3-sulfenyl
by Tambe, Shrikant D and Rohokale, Rajendra S and Kshirsagar, Umesh A
European Journal of Organic Chemistry, ISSN 1434-193X, 05/2018, Volume 2018, Issue 18, pp. 2117 - 2121
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6. Full Text N-Bromosuccinimide promoted and base switchable one pot synthesis of α-imido and α-amino ketones from styrenesElectronic supplementary information (ESI) available: Detailed experimental procedures, characterization data and copies of the NMR spectra. See DOI: 10.1039/c5ob02034d
by Shinde, Mahesh H and Kshirsagar, Umesh A
ISSN 1477-0520, 1/2016, Volume 14, Issue 3, pp. 858 - 861
An N -Bromosuccinimide (NBS) promoted one pot strategy for the synthesis of α-amino functionalized aryl ketones starting from commercially available styrenes... 
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7. Full Text Regioselective Monoalkylation of Dimethyl Alkylidenesuccinates: Simple Approach to Dialkyl-Substituted Maleic Anhydrides Including Chaetomellic Acid A
by Kshirsagar, Umesh A and Argade, Narshinha P
Synthesis, ISSN 0039-7881, 06/2011, Volume 2011, Issue 11, pp. 1804 - 1808
Abstract Natural and nonnatural dialkylmaleic anhydrides were readily prepared from dimethyl alkylidenesuccinates by sodium hexamethyldisilazide-induced... 
paper | maleic anhydrides | esters | heterocycles | alkylations | furans | ASYMMETRIC-SYNTHESIS | ONE-POT SYNTHESIS | NATURAL-PRODUCTS | EFFICIENT SYNTHESIS | CHEMISTRY, ORGANIC | FUNCTIONAL REARRANGEMENT | MICHAEL ADDITION | FARNESYL-PROTEIN TRANSFERASE | FACILE SYNTHESIS | (+/-)-ERYTHRO-ROCCELLIC ACID | ASPERGILLUS-WENTII
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8. Full Text Advanced Synthetic Strategies for Constructing Quinazolinone Scaffolds
by Rohokale, Rajendra S and Kshirsagar, Umesh A
Synthesis, ISSN 0039-7881, 05/2016, Volume 48, Issue 9, pp. 1253 - 1268
Abstract Quinazolinones are important heterocyclic scaffolds because of their broad spectrum of medicinal and pharmacological properties. The development of... 
review | synthesis | quinazolinone | oxidative coupling | radical | heterocycles | cascade cyclization | C BOND-CLEAVAGE | ONE-POT SYNTHESIS | CATALYZED CARBONYLATIVE SYNTHESIS | O-AMINOBENZAMIDES | CHEMISTRY, ORGANIC | CASCADE SYNTHESIS | DOMINO SYNTHESIS | MICROWAVE IRRADIATION | ACRIDONE ALKALOIDS | PRIMARY ALCOHOLS | OXIDATIVE SYNTHESIS
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9. Full Text One pot synthesis of substituted imidazopyridines and thiazoles from styrenes in water assisted by NBS
by Shinde, Mahesh H and Kshirsagar, Umesh A
Green Chemistry, ISSN 1463-9262, 2016, Volume 18, Issue 6, pp. 1455 - 1458
Heating of commercially available styrenes with NBS in water followed by reaction with 2-aminopyridines or thioamides afforded important heterocyclic scaffolds... 
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10. Full Text A copper catalyzed multicomponent cascade redox reaction for the synthesis of quinazolinonesElectronic supplementary information (ESI) available: Detailed experimental procedures, characterization data and copies of NMR spectra. See DOI: 10.1039/c6ra10997g
by Shinde, Mahesh H and Kshirsagar, Umesh A
05/2016, Volume 6, Issue 58, pp. 52884 - 52887
A copper catalyzed multicomponent cascade redox reaction for the synthesis of various quinazolinones starting from easily available 2-bromobenzamides, benzylic... 
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11. Full Text N-Bromosuccinimide promoted and base switchable one pot synthesis of α-imido and α-amino ketones from styrenes
by Shinde, Mahesh H and Kshirsagar, Umesh A
Organic and Biomolecular Chemistry, ISSN 1477-0520, 2016, Volume 14, Issue 3, pp. 858 - 861
An N-Bromosuccinimide (NBS) promoted one pot strategy for the synthesis of alpha-amino functionalized aryl ketones starting from commercially available... 
ALCOHOLS | EFFICIENT ASYMMETRIC HYDROGENATION | AMINATION | PRACTICAL SYNTHESIS | METHYLENEDIOXYPYROVALERONE MDPV | DRUG 3,4-METHYLENEDIOXYPYROVALERONE | HUMAN DOPAMINE TRANSPORTER | 3,4-METHYLENEDIOXYPYROVALERONE MDPV | CHEMISTRY, ORGANIC | CHIRAL METAL-COMPLEXES | BATH SALTS | Amines - chemistry | Bromosuccinimide - chemistry | Styrenes - chemistry | Imides - chemistry | Ketones - chemical synthesis | Ketones - chemistry | Molecular Structure
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12. Full Text Iron-Catalyzed Oxidative Cross-Coupling of Phenols and Alkenes
by Kshirsagar, Umesh A and Regev, Clil and Parnes, Regev and Pappo, Doron
Organic Letters, ISSN 1523-7060, 06/2013, Volume 15, Issue 12, pp. 3174 - 3177
A novel bioinspired iron-catalyzed oxidative cross-coupling reaction between phenols and conjugated alkenes was developed. This method enables the direct... 
RESVERATROL | CYCLOADDITION | MECHANISM | STILBENOIDS | CONSTRUCTION | ARYLATION | SYNTHETIC APPLICATIONS | CHEMISTRY, ORGANIC | CARBONYL-COMPOUNDS | DIMERIZATION | DEAROMATIZATION | Alkenes - chemistry | Styrenes - chemistry | Oxidation-Reduction | Iron - chemistry | Oxidative Coupling | Naphthols - chemistry | Phenols - chemistry | Molecular Structure | Catalysis
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13. Full Text Metal‐Free Synthesis of 3‐Thiocyanatobenzothiophenes by Eosin Y Photoredox‐Catalyzed Cascade Radical Annulation of 2‐Alkynylthioanisoles
by Tambe, Shrikant D and Jadhav, Mahesh S and Rohokale, Rajendra S and Kshirsagar, Umesh A
European Journal of Organic Chemistry, ISSN 1434-193X, 09/2018, Volume 2018, Issue 35, pp. 4867 - 4873
A convenient, efficient, metal‐free synthesis of 3‐thiocyanatobenzothiophenes has been developed that uses eosin Y in a visible‐light‐mediated... 
Redox chemistry | Green chemistry | Sulfur heterocycles | Annulation | Photochemistry | AMMONIUM THIOCYANATE | ONE-POT SYNTHESIS | LIGHT | CHEMISTRY, ORGANIC | ANION OXIDATION | REGIOSELECTIVE THIOCYANATION | ARYL DIAZONIUM SALTS | ORGANIC THIOCYANATES | C-3 THIOCYANATION | CHEMISTRY | INDUCED ELECTRON-TRANSFER | Thiophene
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14. Eosin Y photoredox catalyzed net redox neutral reaction for regiospecific annulation to 3-sulfonylindoles via anion oxidation of sodium sulfinate salts
by Rajendra S Rohokale and Shrikant D Tambe and Umesh A Kshirsagar
Organic & Biomolecular Chemistry, ISSN 1477-0520, 01/2018, Volume 16, Issue 4, pp. 536 - 540
An eosin Y photoredox catalyzed net redox neutral process for 3-sulfonylindoles via the anionic oxidation of sodium sulfinate salts and its radical cascade... 
Organic chemistry | Salts | Anions | Sodium | Aromatic compounds | Chemical reactions | Oxidation | Sulfur | Alkynes
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15. Full Text Aerobic Iron‐Based Cross‐Dehydrogenative Coupling Enables Efficient Diversity‐Oriented Synthesis of Coumestrol‐Based Selective Estrogen Receptor Modulators
by Kshirsagar, Umesh A and Parnes, Regev and Goldshtein, Hagit and Ofir, Rivka and Zarivach, Raz and Pappo, Doron
Chemistry – A European Journal, ISSN 0947-6539, 09/2013, Volume 19, Issue 40, pp. 13575 - 13583
An iron‐based cross‐dehydrogenative coupling (CDC) approach was applied for the diversity‐oriented synthesis of coumestrol‐based selective estrogen receptor... 
natural products | iron | total synthesis | cross‐coupling | structure–activity relationships | cross-coupling | structure-activity relationships | NATURAL-PRODUCTS | TERTIARY-AMINES | OXIDATIVE ACTIVATION | ALPHA | PHYTOESTROGENS | CHEMISTRY, MULTIDISCIPLINARY | C-H BONDS | BETA | BREAST-CANCER CELLS | NITROGEN ATOM | DERIVATIVES | Estrogen Receptor alpha - chemistry | Estrogen Receptor Modulators - chemistry | Humans | Iron - chemistry | Selective Estrogen Receptor Modulators - chemistry | Antineoplastic Agents - chemistry | Coumestrol - pharmacology | Breast Neoplasms - drug therapy | Estrogen Receptor Modulators - pharmacology | Receptors, Estrogen - chemistry | Coumestrol - chemistry | Cell Line, Tumor | Inhibitory Concentration 50 | Coumestrol - analogs & derivatives | Female | Antineoplastic Agents - pharmacology | Molecular Structure | Selective Estrogen Receptor Modulators - pharmacology | Phenols | Iron | Estrogen | Natural products | Breast cancer | Synthesis (chemistry) | Receptors | Synthesis | Estrogens | Joining | Modulators | Cancer
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16. Full Text Visible‐Light‐Mediated Eosin Y Photoredox‐Catalyzed Vicinal Thioamination of Alkynes: Radical Cascade Annulation Strategy for 2‐Substituted‐3‐sulfenylindoles
by Tambe, Shrikant D and Rohokale, Rajendra S and Kshirsagar, Umesh A
European Journal of Organic Chemistry, ISSN 1434-193X, 05/2018, Volume 2018, Issue 18, pp. 2117 - 2121
An organic dye photoredox‐catalyzed regiospecific radical cascade annulation strategy of 2‐alkynyl‐azidoarenes to generate 3‐sulfenylindoles via vicinal... 
Photoredox catalysis | Visible light | 3‐Sulfenylinodles | Organic dyes | Cascade reactions | 3-Sulfenylinodles | METAL-FREE CONDITIONS | ONE-POT SYNTHESIS | CHEMISTRY, ORGANIC | SULFENYLATION | C-H ACTIVATION | INDOLES | DISULFIDES | ALKENES | ARYL DIAZONIUM SALTS | N-BU4NI-INDUCED ELECTROPHILIC CYCLIZATION | CARBOXYLIC-ACIDS
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17. Full Text Eosin y photoredox catalyzed net redox neutral reaction for regiospecific annulation to 3-sulfonylindoles: Via anion oxidation of sodium sulfinate salts
by Rohokale, Rajendra S and Tambe, Shrikant D and Kshirsagar, Umesh A
Organic and Biomolecular Chemistry, ISSN 1477-0520, 2018, Volume 16, Issue 4, pp. 536 - 540
An eosin Y photoredox catalyzed net redox neutral process for 3-sulfonylindoles via the anionic oxidation of sodium sulfinate salts and its radical cascade... 
ORGANIC-SYNTHESIS | ROOM-TEMPERATURE | ARYL DIAZONIUM SALTS | STEREOSELECTIVE CHLOROSULFONYLATION | EFFICIENT SYNTHESIS | CHEMISTRY, ORGANIC | BOND FORMATION | TERMINAL ALKYNES | METAL-FREE | VISIBLE-LIGHT IRRADIATION | CARBOXYLIC-ACIDS
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18. Full Text A copper catalyzed multicomponent cascade redox reaction for the synthesis of quinazolinones
by Shinde, Mahesh H and Kshirsagar, Umesh A
RSC Advances, ISSN 2046-2069, 2016, Volume 6, Issue 58, pp. 52884 - 52887
A copper catalyzed multicomponent cascade redox reaction for the synthesis of various quinazolinones starting from easily available 2-bromobenzamides, benzylic... 
SODIUM-AZIDE | DOMINO REACTION | QUINOLINE | DIRECT AMINATION | ARYL HALIDES | CHEMISTRY | OXIDATIVE SYNTHESIS | LUOTONIN-A | DERIVATIVES | CHEMISTRY, MULTIDISCIPLINARY | BENZYL ALCOHOLS
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19. Full Text Ligand-Controlled Iron-Catalyzed Coupling of α-Substituted β-Ketoesters with Phenols
by Parnes, Regev and Kshirsagar, Umesh A and Werbeloff, Aviya and Regev, Clil and Pappo, Doron
Organic Letters, ISSN 1523-7060, 07/2012, Volume 14, Issue 13, pp. 3324 - 3327
A chemo-, regio-, and stereoselective FeCl3/1,10-phenanthroline-catalyzed cross dehydrogenative coupling (CDC) reaction between phenols and α-substituted... 
ACTIVATION | TERTIARY-AMINES | ALKYLATION | NITROGEN ATOM | 2-NAPHTHOLS | CHEMISTRY, ORGANIC | ALDEHYDES | ADJACENT | ALKYNYLATION | DERIVATIVES | C-H BONDS | Phenanthrolines - chemistry | Esters - chemistry | Stereoisomerism | Ketones - chemistry | Ferric Compounds - chemistry | Ligands | Phenols - chemistry | Molecular Structure | Catalysis | Chlorides - chemistry
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20. Full Text Copper-Catalyzed IntramolecularN-Arylation of Quinazolinones: Facile Convergent Approach to (−)-Circumdatins H and J
by Kshirsagar, Umesh A and Argade, Narshinha P
Organic Letters, ISSN 1523-7060, 08/2010, Volume 12, Issue 16, pp. 3716 - 3719
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