• 1640 Citations
  • 21 h-Index
1965 …2014
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Research Output 1965 2014

  • 1640 Citations
  • 21 h-Index
  • 153 Article
  • 1 Chapter
  • 1 Conference contribution
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
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

3-Endo-(hidroxi-metil)-5-exo-biciklo[2.2.1]heptil-2-endo-amin regioszelektív szintézise és átalakítása telített vagy részlegesen telített diendo-kondenzált heterociklusokká

Translated title of the contribution: Regioselective synthesis of 3-endo-hydroxymethyl-5-exo-phenylbicyclo[2.2.1]heptane-2-endo-amine and its transformation to saturated or partially saturated diendo-fused heterocyclesVirág, M., Stájer, G., Szabó E., A., Bernáth, G., Sohár, P. & Sillanpää, R., Dec 1997, In : Magyar Kemiai Folyoirat, Kemiai Kozlemenyek. 103, 12

Research output: Contribution to journalArticle

Benzoxazines
Heptanes
Amines
Norbornanes
Dichloroacetic Acid
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
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

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
1 Citation (Scopus)

Adatok a fenacetin cerimetriás meghatározásához.

Translated title of the contribution: Cerimetric determination of phenacetinStájer, G., László, V. & Szabó, A. E., Sep 1969, In : Acta Pharmaceutica Hungarica. 39, 5, p. 237-240 4 p.

Research output: Contribution to journalArticle

Phenacetin
Cerium
Quinones
Sulfates
Oxidation-Reduction
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
2 Citations (Scopus)

A fenilbutazon savas hidrolízisen és permanganátos oxidáción alapuló azonossági vizsgálata.

Translated title of the contribution: Identification of phenylbutazone by acid hydrolysis and permanganometric oxidation] [HunVinkler, E. & Stájer, G., 1968, In : Acta Pharmaceutica Hungarica. 38, 4, p. 273-278 6 p.

Research output: Contribution to journalArticle

Phenylbutazone
Oxidation-Reduction
Hydrolysis
Acids
1 Citation (Scopus)

Antimicrobial activity of some disulphides of thioamide type (Hungarian)

Ferenczy, L., Kevei, F. & Stájer, G., 1975, In : Acta Pharmaceutica Hungarica. 45, 5, p. 177-180 4 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Antimikrobiális hatású kéntartalmú mustárolajok felépítésére vonatkozó vizsgálatok.

Translated title of the contribution: Contributions to the synthesis of sulphur-containing mustard oils of antimicrobial actionVinkler, E., Klivényi, F., Stájer, G. & Ferenczy, L., Jan 1968, In : Acta Pharmaceutica Hungarica. 38, 1, p. 6-14 9 p.

Research output: Contribution to journalArticle

Mustard Compounds
Thiocyanates
Mustard Gas
Bacillus cereus
Sulfonic Acids
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
6 Citations (Scopus)
Norbornanes
Isoindoles
Carboxylic Acids
Benzoxazines
Derivatives
19 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
20 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
9 Citations (Scopus)
9 Citations (Scopus)

AROMATISCHE SULFENYLCHLORIDE, IX. HERSTELLUNG, OXIDATION UND SPEKTROSKOPISCHE UNTERSUCHUNG VON 1 SUBSTITUIERTEN (5 TETRAZOLYL)ARYLDISULFIDEN

Translated title of the contribution: Aromatic sulfenyl chlorides, IX. Preparation, oxidation and spectroscopic investigation of 1 substituted 5 tetrazolyl aryl disulfidesStájer, G., Szabo, E. A. & Sohár, P., 1974, In : Chemische Berichte. 107, 1, p. 299-304 6 p.

Research output: Contribution to journalArticle

Nuclear magnetic resonance
Oxidation
1 Citation (Scopus)

Az efedrin azonosítása gyógyszerkészítményekben réz(II)-komplexe alapján.

Translated title of the contribution: Identification of ephedrine in pharmaceutical preparations by its Cu(II)-complexMorvay, J. & Stájer, G., Sep 1965, In : Acta Pharmaceutica Hungarica. 35, 5, p. 194-198 5 p.

Research output: Contribution to journalArticle

Ephedrine
Pharmaceutical Chemistry
Copper
Pharmaceutical Preparations
In Vitro Techniques
3 Citations (Scopus)

Az efedrin fotometriás meghatározása réz(II)-komplexének n-butanolos extrakciója alapján.

Translated title of the contribution: Photometric determination of ephedrine by extraction of its Cu(II)-complex with n-butanolMorvay, J. & Stájer, G., Sep 1965, In : Acta Pharmaceutica Hungarica. 35, 5, p. 199-206 8 p.

Research output: Contribution to journalArticle

Photometry
Ephedrine
1-Butanol
Copper
Alcohols
15 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
1 Citation (Scopus)
Norbornanes
Nuclear magnetic resonance spectroscopy
Conformations
Derivatives
Atoms
65 Citations (Scopus)
Norbornanes
Oxazines
Nuclear magnetic resonance
Isomers
Conformations
12 Citations (Scopus)

Conformational analysis 29: Preparation and1H and13C NMR, FTIR, MS, and crystallographic conformational and configurational study of 3-Oxo-1,3-oxathiane and its monomethyl derivatives

Pihlaja, K., Sillanpää, R., Dahlqvist, M., Stájer, G. & Ahlgren, M., Jun 1993, In : Structural Chemistry. 4, 3, p. 203-210 8 p.

Research output: Contribution to journalArticle

Fourier Transform Infrared Spectroscopy
seats
Nuclear magnetic resonance
Derivatives
preparation
18 Citations (Scopus)

Copper(II) chloride as an efficient reagent for the dehydrogenation of pyridazinone derivatives

Csende, F., Szabo, Z., Bernáth, G. & Stájer, G., 1995, In : Synthesis. 10, p. 1240-1242 3 p.

Research output: Contribution to journalArticle

Halogenation
Dehydrogenation
Isomers
Derivatives
Copper
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
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
2 Citations (Scopus)

EINE NEUE REAKTION ZUR IDENTIFIZIERUNG VON MEPHENYTOIN

Translated title of the contribution: New reaction for the identification of MesantoinStájer, G., Szabo, A. E., Vinkler, E. & Sohár, P., 1977, In : Archiv der Pharmazie. 310, 11, p. 865-872 8 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

EINFLUSS LIPOPHILER EMULGATOREN AUF DIE ARZNEIABGABE VON SALBEN. TEIL 3: WECHSELWIRKUNG ZWISCHEN 8-HYDROXYCHINOLIN BZW. β-NAPHTHOL UND EMULGATOREN VOM GLYKOLESTERTYP

Translated title of the contribution: The effects of lipophil emulsifiers on drug release from ointments, Part 3Mayer, A., Torok, J. & Stájer, G., 1977, In : Pharmazie. 32, 8-9, p. 507-508 2 p.

Research output: Contribution to journalArticle

Pharmaceutic Aids
Naphthalenes
Hydroxyquinolines
Oxyquinoline
Naphthols
14 Citations (Scopus)

Electron and chemical ionization mass spectrometry in stereochemical differentiation of some 1,3‐amino alcohols

Partanen, T., Vainiotalo, P., Stájer, G., Bernáth, G. & Pihlaja, K., 1994, In : Organic Mass Spectrometry. 29, 3, p. 126-132 7 p.

Research output: Contribution to journalArticle

Norbornanes
Butanes
Stereoisomerism
Methane
Ammonia
17 Citations (Scopus)
Norbornanes
Thiones
mass spectra
electron impact
Ionization
8 Citations (Scopus)

Electron‐impact induced fragmentations of some quinazolinediones and benzoxazinones

Himottu, M., Pihlaja, K., Stájer, G. & Vainiotalo, P., 1993, In : Rapid Communications in Mass Spectrometry. 7, 5, p. 374-377 4 p.

Research output: Contribution to journalArticle

Benzoxazines
Quinazolinones
Carbon Dioxide
2,4(1H,3H)-quinazolinedione
18 Citations (Scopus)

Electron impact ionization mass spectrometry and intramolecular cyclization in 2-substituted pyrimidin-4(3 H)-ones

Oksman, P., Stájer, G., Pihlaja, K. & Karelson, M., Feb 1994, In : Journal of the American Society for Mass Spectrometry. 5, 2, p. 113-119 7 p.

Research output: Contribution to journalArticle

Impact ionization
Cyclization
Mass spectrometry
Mass Spectrometry
Substitution reactions
2 Citations (Scopus)

Electron ionization fragmentation of some isoindolone derivatives

Mäki, E., Csende, F., Stájer, G., Vainiotalo, P. & Pihlaja, K., 1994, In : Rapid Communications in Mass Spectrometry. 8, 10, p. 858-862 5 p.

Research output: Contribution to journalArticle

Ionization
Ions
Derivatives
Electrons
Isoindol-1-one
5 Citations (Scopus)
Thiones
Cycloparaffins
Ionization
Ions
Electrons
8 Citations (Scopus)
Norbornanes
Oxazines
Ionization
Electrons
Ions
8 Citations (Scopus)
Norbornanes
Oxazines
Mass spectrometry
fragmentation
mass spectroscopy
1 Citation (Scopus)

Identity reaction and determination of primidone

Stájer, G., Bertha, A. & Sohár, P., 1980, In : Scientia Pharmaceutica. 48, 1, p. 62-68 7 p.

Research output: Contribution to journalArticle

Primidone
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
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

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
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
1 Citation (Scopus)

Mass spectral fragmentation of some cycloalkane‐condensed 4,5‐dihydro‐3(2H)‐pyridazinones and 4,5‐dihydro‐6H‐1,2‐oxazin‐6‐ones

Mäki, E., Stájer, G., Csende, F., Vainiotalo, P. & Pihlaja, K., 1994, In : Rapid Communications in Mass Spectrometry. 8, 12, p. 1021-1025 5 p.

Research output: Contribution to journalArticle

Cycloparaffins
Ionization
Ions
Derivatives
Electrons
10 Citations (Scopus)

Mass spectral fragmentation reactions of some stereoisomeric cyclic β‐amino acids under electron and chemical ionization

Partanen, T., Vainiotalo, P., Stájer, G., Bernáth, G., Göndös, G. & Pihlaja, K., 1993, In : Rapid Communications in Mass Spectrometry. 7, 12, p. 1121-1125 5 p.

Research output: Contribution to journalArticle

Cyclic Amino Acids
Ionization
Isomers
Electrons
Norbornanes
19 Citations (Scopus)
Norbornanes
Pyrimidinones
Charge density
electron impact
Mass spectrometry
7 Citations (Scopus)

Mass spectrometric behaviour of cyclopentane‐and cyclohexane‐condensed pyrimidinediones under electron impact

Himottu, M., Pihlaja, K., Bernáth, G., Stájer, G. & Vainiotalo, P., 1990, In : Organic Mass Spectrometry. 25, 5, p. 277-284 8 p.

Research output: Contribution to journalArticle

Aniline Compounds
Mass Behavior
Aniline
Isomers
electron impact
8 Citations (Scopus)
Norbornanes
Thiouracil
Stereoselectivity
Butanes
Isomers

Mass spectrometric fragmentation of saturated isoindolobenzoxazepinones and -benzoxazinones under electron ionization

Partanen, T., Vainiotalo, P., Stájer, G. & Bernáth, G., 1996, In : Rapid Communications in Mass Spectrometry. 10, 9, p. 1013-1018 6 p.

Research output: Contribution to journalArticle

Benzoxazines
Ionization
Electrons
Atoms
Nitrogen
5 Citations (Scopus)
Cycloparaffins
Pyrimidinones
Isomers
mass spectra
electron impact