• 1636 Citations
  • 21 h-Index
1965 …2014
If you made any changes in Pure these will be visible here soon.

Research Output 1965 2014

  • 1636 Citations
  • 21 h-Index
  • 153 Article
  • 1 Chapter
  • 1 Conference contribution
2014
5 Citations (Scopus)

Retro Diels-Alder Reactions

Csende, F., Stájer, G. & Fülöp, F., Feb 2014, Comprehensive Organic Synthesis: Second Edition. Elsevier Ltd., Vol. 5. p. 518-594 77 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Fullerenes
Carbon Nanotubes
Alkenes
Organic compounds
Olefins
2012
11 Citations (Scopus)

Recent developments in the synthesis of heterocycle-fused isoindoles

Csende, F., Miklós, F. & Stájer, G., Apr 2012, In : Current Organic Chemistry. 16, 8, p. 1005-1050 46 p.

Research output: Contribution to journalArticle

Isoindoles
Derivatives
2011
3 Citations (Scopus)

1-oxo-1,3-dithiolanes-synthesis and stereochemistry

Pihlaja, K., Sinkkonen, J., Stájer, G., Koch, A. & Kleinpeter, E., Jul 2011, In : Magnetic Resonance in Chemistry. 49, 7, p. 443-449 7 p.

Research output: Contribution to journalArticle

Thin layer chromatography
Stereochemistry
Molecular modeling
Chemical shift
Computational methods
2009
3 Citations (Scopus)
Norbornanes
Pyrimidinones
Lactones
Thiazepines
Isoindoles
2008
4 Citations (Scopus)

3-Oxo-1,3-oxathiolanes-synthesis and stereochemistry

Pihlaja, K., Sinkkonen, J. & Stájer, G., Mar 2008, In : Magnetic Resonance in Chemistry. 46, 3, p. 244-249 6 p.

Research output: Contribution to journalArticle

Stereochemistry
stereochemistry
seats
Conformations
thin layer chromatography
14 Citations (Scopus)

Chemistry of norbornane/ene and heteronorbornane/ene β-amino acids

Csende, F., Fülöp, F. & Stájer, G., May 2008, In : Current Organic Synthesis. 5, 2, p. 173-185 13 p.

Research output: Contribution to journalArticle

Norbornanes
Oligopeptides
Alanine
Derivatives
Amino Acids
2007
7 Citations (Scopus)

Diastereochemical Differentiation of β-Amino Acids Using Host-Guest Complexes Studied by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

Hyyryläinen, A. R. M., Pakarinen, J. M. H., Vainiotalo, P., Stájer, G. & Fülöp, F., Jun 2007, In : Journal of the American Society for Mass Spectrometry. 18, 6, p. 1038-1045 8 p.

Research output: Contribution to journalArticle

Cyclotrons
Cyclotron resonance
Fourier Analysis
Mass spectrometry
Mass Spectrometry
6 Citations (Scopus)
Ionization
Ions
Electrons
Stereoisomerism
Amides
1 Citation (Scopus)

Preparation and structure of bicycloalkane-condensed aryldiaziridines accompanied by pyrimidines

Sohár, P., Csámpai, A., Sillanpää, R., Fülöp, F. & Stájer, G., Jun 1 2007, In : Heterocycles. 71, 6, p. 1315-1326 12 p.

Research output: Contribution to journalArticle

Bromosuccinimide
Pyrimidines
Methylene Chloride
X Ray Crystallography
Chromatography
4 Citations (Scopus)

Preparation and structure of pyrrolo[2,1-b]- and isoindolo[1,2-b][3,1]epoxyquinazolines

Kanizsai, I., Miklós, F., Sohár, P., Csámpai, A., Sillanpää, R. & Stájer, G., Apr 17 2007, In : Journal of Molecular Structure. 831, 1-3, p. 37-45 9 p.

Research output: Contribution to journalArticle

Cyclopentanes
NSC 153174
preparation
acids
Acids
2006
19 Citations (Scopus)

A retro Diels-Alder method for the preparation of pyrrolo[1,2-a] pyrimidinediones from diexo-aminooxanorbornenecarboxamide

Stájer, G., Szabó, A. E., Sohár, P., Csámpai, A. & Sillanpää, R., Feb 20 2006, In : Journal of Molecular Structure. 784, 1-3, p. 239-243 5 p.

Research output: Contribution to journalArticle

preparation
acids
Acids
Thermolysis
Cyclization
11 Citations (Scopus)

Preparation of heterocycles by microwave-induced retro Diels-Alder reaction

Miklós, F., Stájer, G. & Fülöp, F., Dec 2006, In : Letters in Organic Chemistry. 3, 12, p. 915-916 2 p.

Research output: Contribution to journalArticle

Pyrimidinones
Microwave heating
Cycloaddition Reaction
Microwaves
Heating
2005
31 Citations (Scopus)

Advanced methods for the synthesis of 3-substituted 1H-isoindol-1-ones

Stájer, G. & Csende, F., Sep 2005, In : Current Organic Chemistry. 9, 13, p. 1277-1286 10 p.

Research output: Contribution to journalArticle

Phthalimides
Keto Acids
Carbonyl compounds
Acids
Isoindol-1-one
18 Citations (Scopus)

Approaches to the formation of condensed isoindolones

Csende, F. & Stájer, G., Sep 2005, In : Current Organic Chemistry. 9, 13, p. 1261-1276 16 p.

Research output: Contribution to journalArticle

Phthalimides
Keto Acids
Cyclization
Isomers
Amines
3 Citations (Scopus)

Indoloquinolines, indolobenzoxazines and quinazolophthalazines prepared from norbornane/eneamino acids and hydrazides

Stájer, G., Szabó, A. E., Túrós, G., Sohár, P. & Sillanpää, R., Sep 26 2005, In : European Journal of Organic Chemistry. 19, p. 4154-4161 8 p.

Research output: Contribution to journalArticle

Norbornanes
Acetates
Acids
X ray crystallography
X Ray Crystallography
16 Citations (Scopus)

Versatile reactivity and catalytic effects of copper(II) halides in organic syntheses

Csende, F. & Stájer, G., Nov 2005, In : Current Organic Chemistry. 9, 17, p. 1737-1755 19 p.

Research output: Contribution to journalArticle

Nitriles
Cyclization
Copper
Pyridazines
Salts
2004
20 Citations (Scopus)

Application of furan as a diene: Preparation of condensed 1,3-oxazines by retro-Diels-Alder reactions

Stájer, G., Miklós, F., Kanizsai, I., Csende, F., Sillanpää, R. & Sohár, P., Aug 27 2004, In : European Journal of Organic Chemistry. 17, p. 3701-3706 6 p.

Research output: Contribution to journalArticle

Oxazines
Cycloaddition Reaction
NSC 153174
Keto Acids
Benzoic Acid

Oxigén- és nitrogéntartalmú mono- és policiklusos vegyületek eloállítása

Translated title of the contribution: Preparation of mono- and polyheterocycles containing oxygen and nitrogen atomsStájer, G., Mar 2004, In : Magyar Kemiai Folyoirat, Kemiai Kozlemenyek. 109-110, 1, p. 6-15 10 p.

Research output: Contribution to journalArticle

Nitrogen
Oxygen
Atoms
Acids
Pyrimidinones
7 Citations (Scopus)

Preparation and structure of di-exo-condensed norbornane heterocycles

Miklós, F., Hetényi, A., Sohár, P. & Stájer, G., Jul 2004, In : Monatshefte fur Chemie. 135, 7, p. 839-847 9 p.

Research output: Contribution to journalArticle

hydrazine
Norbornanes
Amino Alcohols
Nucleophiles
Cyclization
15 Citations (Scopus)

Preparation and structure of diexo-oxanorbornane-fused 1,3-heterocycles

Miklós, F., Kanizsai, I., Thomas, S., Kleinpeter, E., Sillanpää, R. & Stájer, G., Jan 1 2004, In : Heterocycles. 63, 1, p. 63-74 12 p.

Research output: Contribution to journalArticle

Oxazines
Oxazoles
Alkanolamines
Cross-Linking Reagents
Cyclopentanes
14 Citations (Scopus)

Preparation and structure of pyrrolo- and isoindoloquinazolinones

Sohár, P., Csámpai, A., Szabó, A. E. & Stájer, G., Jun 2004, In : Journal of Molecular Structure. 694, 1-3, p. 139-147 9 p.

Research output: Contribution to journalArticle

preparation
acids
Acids
Norbornanes
Derivatives
8 Citations (Scopus)

Reactions of levulinic acid with norbornane/ene amino acids and diamines

Stájer, G., Szabó, A. E., Csámpai, A. & Sohár, P., Mar 12 2004, In : European Journal of Organic Chemistry. 6, p. 1318-1322 5 p.

Research output: Contribution to journalArticle

Norbornanes
Heptanes
Diamines
Carboxylic Acids
Benzoxazines
5 Citations (Scopus)
Norbornanes
ethylenediamine
hydrazine
Acids
Isoindoles
Norbornanes
Cycloparaffins
Hydrogen
Molecular modeling
Derivatives
2003
3 Citations (Scopus)

Stereospecific fragmentations in the mass spectra of stereoisomeric isoindoloquinazolines

Ovcharenko, V. V., Pihlaja, K. & Stájer, G., Sep 2003, In : Journal of the American Society for Mass Spectrometry. 14, 9, p. 1049-1056 8 p.

Research output: Contribution to journalArticle

Ionization
Mass Behavior
Electrons
Stereoisomerism
Isomers
3 Citations (Scopus)

Structures of saturated 5H-Pyrrolo[1,2-a][3,1]benzoxazin-1(2H)-ones prepared from 4-oxopentanoic acid and cyclic amino alcohols

Kivelä, H., Klika, K. D., Szabó, A., Stájer, G. & Pihlaja, K., May 2003, In : European Journal of Organic Chemistry. 10, p. 1879-1886 8 p.

Research output: Contribution to journalArticle

Cyclohexylamines
Amino Alcohols
Stereoselectivity
Charcoal
Nuclear magnetic resonance
28 Citations (Scopus)

The retro Diels-Alder reaction as a valuable tool for the synthesis of heterocycles

Stájer, G., Csende, F. & Fülöp, F., Sep 2003, In : Current Organic Chemistry. 7, 14, p. 1423-1432 10 p.

Research output: Contribution to journalArticle

Pyrimidinones
Oxazoles
Pyrazoles
Imidazoles
Derivatives
2002
11 Citations (Scopus)

1H, 13C, and 15N NMR stereochemical study of cis-fused 7a(8a)-methyl and 6-phenyl octa(hexa)hydrocyclopenta[d][1,3]oxazines and [3,1]benzoxazines

Tähtinen, P., Sinkkonen, J., Klika, K. D., Nieminen, V., Stájer, G., Szakonyi, Z., Fülöp, F. & Pihlaja, K., 2002, In : Chirality. 14, 2-3, p. 187-198 12 p.

Research output: Contribution to journalArticle

Benzoxazines
Oxazines
Nuclear magnetic resonance
Conformations
Derivatives
6 Citations (Scopus)
Norbornanes
Isoindoles
Carboxylic Acids
Benzoxazines
Derivatives
11 Citations (Scopus)

Isomerization and application of aroylnorbornene-carboxylic acids for stereoselective preparation of heterocycles

Miklós, F., Sohár, P., Csámpai, A., Sillanpää, R., Péter, M. & Stájer, G., Dec 1 2002, In : Heterocycles. 57, 12, p. 2309-2320 12 p.

Research output: Contribution to journalArticle

Isomerization
Carboxylic Acids
Heptanes
Cross-Linking Reagents
Putrescine
3 Citations (Scopus)

Methods for preparation of γ- and δ-oxo acids as useful synthons for heterocycles

Csende, F. & Stájer, G., Jul 1 2002, In : Heterocycles. 57, 7, p. 1353-1365 13 p.

Research output: Contribution to journalArticle

Keto Acids
Cycloparaffins
Regioselectivity
7 Citations (Scopus)

Preparation and structure of pyrazolo[3,4-d]pyrimidinones

Miklós, F., Kanizsai, I., Sohár, P. & Stájer, G., Jun 3 2002, In : Journal of Molecular Structure. 610, 1-3, p. 41-46 6 p.

Research output: Contribution to journalArticle

pyrazolo(3,4-d)pyrimidine
Pyrimidinones
Acylation
Cyclization
Amines
3 Citations (Scopus)
hydrazine
Cyclization
Nuclear magnetic resonance spectroscopy
Atoms
Cyclohexane
2001

Kémiai kalandozások: Színreakciók, cikloaddíciók és cikloreverziók

Translated title of the contribution: Challenges in chemistry; colour reactions, cycloadditions and cycloreversionsStájer, G., 2001, In : Acta Pharmaceutica Hungarica. 71, 2, p. 143-151 9 p.

Research output: Contribution to journalArticle

Cycloaddition Reaction
Norbornanes
Color
Cross-Linking Reagents
Oxadiazoles
8 Citations (Scopus)
Norbornanes
Thiouracil
Stereoselectivity
Butanes
Isomers
11 Citations (Scopus)

Preparation of 9-amino-1,9-diazatricyclo[6.4.0.04,8]dodecane-2,10-dione by a retro-Diels-Alder reaction

Stájer, G., Miklós, F., Sohár, P. & Sillanpää, R., Nov 2001, In : European Journal of Organic Chemistry. 21, p. 4153-4156 4 p.

Research output: Contribution to journalArticle

Cycloaddition Reaction
Cyclopentanes
Lactams
Heating
Acetates
21 Citations (Scopus)
Phthalazines
Isoindoles
Quinazolinones
Cycloparaffins
Cyclopentanes
16 Citations (Scopus)

Theoretical and experimental studies on ring closure reactions of 4(5)-chloro-5(4)-hydroxyalkylamino-6-nitro-3 (2H)-pyridazinones

Éliás, O., Károlyházy, L., Stájer, G., Fülöp, F., Czakó, K., Harmath, V., Barabás, O., Keseru, K. & Mátyus, P., Jul 9 2001, In : Journal of Molecular Structure: THEOCHEM. 545, p. 75-96 22 p.

Research output: Contribution to journalArticle

Oxazepines
Cyclization
closures
Theoretical Models
Derivatives
2000
18 Citations (Scopus)

4- and 5-oxocarboxylic acids as versatile synthons for the preparation of heterocycles

Csende, F. & Stájer, G., Jun 1 2000, In : Heterocycles. 53, 6, p. 1379-1419 41 p.

Research output: Contribution to journalArticle

Acids
9 Citations (Scopus)
20 Citations (Scopus)

Double retro Diels-Alder reaction applied for preparation of a pyrimido[1,2-b]pyridazine

Miklós, F., Stájer, G., Sohár, P. & Böcskei, Z., 2000, In : Synlett. 1, p. 67-68 2 p.

Research output: Contribution to journalArticle

Cyclopentanes
Toluene
Boiling liquids
Condensation
Heating
8 Citations (Scopus)

The assignment of the correct structures and conformational analysis of the isomeric t-5- and t-4-phenyl-t(c)-2-benzoyl-r-1-cyclohexanecarboxylic acids by NMR and FT-IR spectroscopy

Klika, K. D., Tähtinen, P., Dahlqvist, M., Szabó, J. A., Stájer, G., Sinkkonen, J. & Pihlaja, K., Apr 2000, In : Journal of the Chemical Society, Perkin Transactions 2. 4, p. 687-692 6 p.

Research output: Contribution to journalArticle

Cyclohexanecarboxylic Acids
Isomers
Hydrogen
Infrared spectroscopy
Nuclear magnetic resonance
1999

A convenient reduction of unsaturated bicyclic anhydrides

Csende, F. & Stájer, G., 1999, In : Organic Preparations and Procedures International. 31, 2, p. 220-222 3 p.

Research output: Contribution to journalArticle

Anhydrides
8 Citations (Scopus)
Norbornanes
Oxazines
Mass spectrometry
fragmentation
mass spectroscopy
3 Citations (Scopus)

Lactones and ketal-lactones prepared from AlCl3-catalyzed reactions of cycloalkenedicarboxylic anhydrides with toluene

Szabó, J. A., Sohár, P., Böcskei, Z., Stájer, G. & Bernáth, G., 1999, In : Synthesis. 9, p. 1564-1568 5 p.

Research output: Contribution to journalArticle

Anhydrides
Toluene
Lactones
Norbornanes
Cycloparaffins
8 Citations (Scopus)
Amino Alcohols
Energy barriers
Nuclear magnetic resonance
Oxazolone
Derivatives
10 Citations (Scopus)
Cycloparaffins
Isomers
Ions
Derivatives
X-Ray Diffraction
1 Citation (Scopus)

Structures of isobenzofuranone-substituted diexo-norbornane/ene- azetidinones

Böcskei, Z., Sohár, P. & Stájer, G., Dec 7 1999, In : Journal of Molecular Structure. 513, 1-3, p. 63-67 5 p.

Research output: Contribution to journalArticle

Norbornanes
X ray analysis
Nuclear magnetic resonance
X-Rays
nuclear magnetic resonance
17 Citations (Scopus)

Synthesis and structure of norbornane/ene-fused thiouracils and thiazino[3,2-a]pyrimidinones

Stájer, G., Szabó, A. E. & Sohár, P., Aug 1 1999, In : Heterocycles. 51, 8, p. 1849-1854 6 p.

Research output: Contribution to journalArticle

Norbornanes
Pyrimidinones
Thiouracil
Heating
Isothiocyanates
2 Citations (Scopus)
Benzoxazines
X ray crystallography
X Ray Crystallography
Isomers
crystallography