Kivelä Henri; Martiskainen Olli; Pihlaja Kalevi; Zalán Zita; Lázár László:
Stereoselective synthesis and structural analysis of polycyclic lactams derived from tetrahydroisoquinoline 1,2- and 1,3-diamines.
ARKIVOC, 2012 (v).
pp. 244-264.
ISSN 1551-7004
(2012)
Pihlaja Kalevi; Sinkkonen Jari; Stájer Géza; Koch Andreas; Kleinpeter Erich:
1-Oxo-1,3-dithiolanes – synthesis and stereochemistry.
Magnetic Resonance in Chemistry, 49 (7).
pp. 443-449.
ISSN 0749-1581
(2011)
Oksman Pentti; Pihlaja Kalevi; Fülöp Ferenc; Bernáth Gábor:
Fragmentation and intramolecular cyclization in cyclopentane‐4,5‐fused 2‐N‐phenyliminoperhydro‐1,3‐oxazines and related thiazines under electron impact ionization.
RAPID COMMUNICATIONS IN MASS SPECTROMETRY, 9 (7).
pp. 615-624.
ISSN 0951-4198
(1995)
Neuvonen Kari; Fülöp Ferenc; Neuvonen Helmi; Pihlaja Kalevi:
A Correlation Analysis of C═N 13C Chemical Shifts. The Use of Substituted Benzaldehyde (2-Hydroxycyclohexyl)hydrazones as Probes.
JOURNAL OF ORGANIC CHEMISTRY, 59.
pp. 5895-5900.
ISSN 0022-3263
(1994)
Partanen Tuula; Vainiotalo Pirjo; Stájer Géza; Bernáth Gábor; Pihlaja Kalevi:
Electron and chemical-ionization mass spectrometry in stereochemical differentiation of some 1,3-amino alcohols.
ORGANIC MASS SPECTROMETRY, 29 (3).
pp. 126-132.
ISSN 0030-493X
(1994)
Mäki Esa; Fülöp Ferenc; Bernáth Gábor; Pihlaja Kalevi:
Electron ionization mass spectra of some fused pyrimidinone derivatives.
RAPID COMMUNICATIONS IN MASS SPECTROMETRY, 8 (7).
pp. 535-538.
ISSN 0951-4198
(1994)
Fülöp Ferenc; Sillanpää Reijo; Dahlqvist Martti; Pihlaja Kalevi; Vainiotalo Pirjo:
Ring-chain tautomerism and crystal structure of some 1,3-oxazacyclanes, and the electrophilic substituent constants for some heteroaryl groups in solution and in the gas-phase.
HETEROCYCLES, 37 (2).
pp. 1093-1107.
ISSN 0385-5414
(1994)
Maki Esa; Pihlaja Kalevi; Huber Imre; Fülöp Ferenc; Bernáth Gábor; Vainiotalo Pirjo:
Electron impact ionization mass spectra of some substituted dipyrido[1,2-a:4,3-d]pyrimidinones.
ORGANIC MASS SPECTROMETRY, 28 (1).
pp. 18-22.
ISSN 0030-493X
(1993)
Vainiotalo Pirjo; Lehtela Pirjo-Liisa; Fülöp Ferenc; Bernáth Gábor; Vuorilehto Lauri; Pihlaja Kalevi:
Electronic effects in the electron ionization fragmentations of 2‐aryl substituted octahydro‐1,3‐ and ‐3,1‐benzoxazines.
RAPID COMMUNICATIONS IN MASS SPECTROMETRY, 7 (6).
pp. 465-469.
ISSN 0951-4198
(1993)
Partanen Tuula; Vainiotalo Pirjo; Stájer Géza; Bernáth Gábor; Göndös György; Pihlaja Kalevi:
Mass spectral fragmentation reactions of some stereoisomeric cyclic beta-amino acids under electron and chemical ionization.
RAPID COMMUNICATIONS IN MASS SPECTROMETRY, 7 (12).
pp. 1121-1125.
ISSN 0951-4198
(1993)
Fülöp Ferenc; Pihlaja Kalevi; Neuvonen Kari; Bernáth Gábor; Argay Gyula; Kálmán Alajos:
Ring-chain tautomerism in oxazolidines.
JOURNAL OF ORGANIC CHEMISTRY, 58 (7).
pp. 1967-1969.
ISSN 0022-3263; 1520-6904
(1993)
Pihlaja Kalevi; Liukko-Sipi Sirpa; Fülöp Ferenc; Bernáth Gábor; Vainiotalo Pirjo:
Electron ionization fragmentations of some N-substituted 2-N-methylimino-4,5-tetramethyleneperhydro-3,1-oxazines and related thiazines.
RAPID COMMUNICATIONS IN MASS SPECTROMETRY, 5 (5).
pp. 230-233.
ISSN 0951-4198
(1991)
Vainiotalo Pirjo; Ronkanen Sari; Stájer Géza; Bernáth Gábor; Pihlaja Kalevi:
Electron ionization mass spectra of some 4β-phenyl-substituted cycloalkane-cis-fused 1,3-oxazin-2(3H)-ones, -2(3H)-thiones and 1,4-oxazepin-3(4H)-ones.
JOURNAL OF HETEROCYCLIC CHEMISTRY, 28 (2).
pp. 253-256.
ISSN 0022-152X
(1991)
Vainiotalo Pirjo; Fülöp Ferenc; Pihlaja Kalevi:
Gas-Phase ring-chain tautomerism in 1,3-oxazines. Does it exist?
ORGANIC MASS SPECTROMETRY, 26 (5).
pp. 438-442.
ISSN 0030-493X
(1991)
Himottu Marja; Pihlaja Kalevi; Stájer Géza; Bernáth Gábor; Vainiotalo Pirjo:
Mass spectrometric study of some cycloalkane/ene-condensed 2-thioxo-2,3,5,6-pyrimidin-4(1H)-ones and cycloalkane/ene-condensed 1,3-thiazino[3,2-a]pyrimidinones under electron impact.
ORGANIC MASS SPECTROMETRY, 26 (5).
pp. 493-497.
ISSN 0030-493X
(1991)
Fülöp Ferenc; Pihlaja Kalevi:
Preparation of 1-(ortho-aminobenzoyl)-1-methylhydrazines.
ORGANIC PREPARATIONS AND PROCEDURES INTERNATIONAL, 23 (3).
pp. 377-378.
ISSN 0030-4948
(1991)
Partanen Tuula; Vainiotalo Pirjo; Stájer Géza; Bernáth Gábor; Pihlaja Kalevi:
Electron impact and chemical ionization mass spectra of norbornane/ene di-exo and di-endo-fused 1,3-oxazin-2(1H)-ones and 1,3-oxazine-2(1H)-thiones.
ORGANIC MASS SPECTROMETRY, 25 (11).
pp. 615-619.
ISSN 0030-493X
(1990)
Pihlaja Kalevi; Lötjönen Lenita; Fülöp Ferenc; Bernáth Gábor; Vainiotalo Pirjo:
Electron ionization mass spectra of some cyclohexane-fused 2-N-phenyliminoperhydro-1,3-oxazines and related thiazines.
RAPID COMMUNICATIONS IN MASS SPECTROMETRY, 4 (8).
pp. 279-282.
ISSN 0951-4198
(1990)
Pihlaja Kalevi; Oksman Pentti; Stájer Géza; Bernáth Gábor:
Tautomerism and electron impact mass spectra of pyrimidin-4(3H)- and -4(1H)-ones.
ORGANIC MASS SPECTROMETRY, 25 (2).
pp. 115-118.
ISSN 0030-493X
(1990)
Vainiotalo Pirjo; Fülöp Ferenc; Bernáth Gábor; Pihlaja Kalevi:
Mass spectrometric intramolecular cyclization reactions of some 2-N-phenyliminoperhydro-1,3-oxazines.
JOURNAL OF HETEROCYCLIC CHEMISTRY, 26 (5).
pp. 1453-1459.
ISSN 0022-152X; 1943-5193
(1989)
Pihlaja Kalevi; Vainiotalo Pirjo; Fülöp Ferenc; Bernáth Gábor:
Stereochemistry and the mass spectra of some 1,3- and 3,1-perhydrobenzoxazines.
RAPID COMMUNICATIONS IN MASS SPECTROMETRY, 2 (11).
pp. 229-232.
ISSN 0951-4198
(1988)
Pihlaja Kalevi; Vainiotalo Pirjo; Bernáth Gábor; Göndös György; Gera Lajos:
Electron impact, ammonia and isobutane chemical ionization mass-spectra of n-azabicyclo[t.2.0]alkanes (n=6-9, t=3-6).
FINNISH CHEMICAL LETTERS, 14 (1).
pp. 29-35.
ISSN 0303-4100
(1987)
Fülöp Ferenc; Pihlaja Kalevi; Mattinen Jorma; Bernáth Gábor:
Ring-chain tautomerism in 1,3-oxazines.
JOURNAL OF ORGANIC CHEMISTRY, 52 (17).
pp. 3821-3825.
ISSN 0022-3263
(1987)
Pihlaja Kalevi; Mattinen Jorma; Dombi György; Pitkänen Elja:
A 2D H-1 and C-13 NMR study of 1,5-anhydro-D-glucitol.
FINNISH CHEMICAL LETTERS, 13 (3).
pp. 47-52.
ISSN 0303-4100
(1986)
Pihlaja Kalevi; Mattinen Jorma; Bernáth Gábor; Fülöp Ferenc:
Conformational analysis. XXVII—A 1H and 13C NMR conformational study of cis- and trans-annelated 2-p-nitrophenyl-4,5- and -5,6-tetramethyleneper-hydro- and 2-p-chlorophenyl-4,5- and -5,6-tetramethylenedihydro-1,3-oxazines.
MAGNETIC RESONANCE IN CHEMISTRY, 24 (2).
pp. 145-149.
ISSN 0749-1581; 1097-458X
(1986)
Pihlaja Kalevi; Vajniotalo Pirjo; Bernáth Gábor; Göndös György; Gera Lajos:
Electron impact and ammonia chemical ionization mass spectra of n-azabicyclo[m.2.0]alkan-(n+1)-ones (m = 3-6, n = 6-9).
ORGANIC MASS SPECTROMETRY, 21 (2).
pp. 55-57.
ISSN 0030-493X; 2376-3884
(1986)