Zobrazeno 1 - 10 of 401 pro vyhledávání: '"Miha Tišler"'
1
Preparation of azolopyridazinecarboxylic acids
Autor: Miha Tišler, B. Stanovnik, Gottfried Heinisch, G. Lötsch, S. Offenberger
Publikováno v: Journal of Heterocyclic Chemistry. 26:1751-1754
Oxidation reactions of various methyl substituted azolopyridazines 2a-d, 3a-h, 4a,b were investigated in order to gain access to the title compounds. This procedure was found to be of limited scope affording only the carboxylic acids 5, 7 and 9. A va
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::74e047538c9c47876ba31ec18ceae5e2
https://doi.org/10.1002/jhet.5570260643
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3
Tele-substitutions in Heterocyclic Chemistry
Autor: Miha, Tišler
Publikováno v: Acta chimica Slovenica. 58(1)
Particular and rare examples of aromatic nucleophilic substitution are described as tele-substitution. Usually strong nucleophiles are involved and the entering group is introduced at a position distant from the expected leaving group. Examples of te
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::a259b5fd4025feb0d278f46163eaa450
https://pubmed.ncbi.nlm.nih.gov/24061937
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4
Study on the preparation of heteroaryl substituted enamines. A simple synthesis of heteroaryl substituted acetaldoximes from enamines
Autor: Antončopar, Miha Tišler, Branko Stanovnik
Publikováno v: Journal of Heterocyclic Chemistry. 33:465-474
A comparative study of the reactivity of methyl groups towards N, N-dimethylformamide dimethyl acetal and tert-butoxybis(dimethylamino)methane was carried out on methyl substituted six-membered nitrogen containing heterocycles 1 to give enamines 2, w
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6955df563d8bff14ae81e46888312e52
https://doi.org/10.1002/jhet.5570330240
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5
Amino acids in the synthesis of heterocyclic systems. Synthesis of γ-(5-(1,2,4-Triazinylidene))-α,β-dehydro-α-amino acid derivatives and 6H-pyrido[1,2-d][1,2,4]triazin-6-ones
Autor: Miha Tišler, Anton Copar, Branko Stanovnik
Publikováno v: Journal of Heterocyclic Chemistry. 32:425-434
5-(1,2,4-Triazinyl) substituted enamines 3 react with 5(4H)-oxazolones 4 in acetic anhydride to give acetylated products 5, while in toluene-acetic acid mixture nonacetylated products 9 are formed. Both types of products were isolated as (E,Z) mixtur
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::be1b2cd05b822ec5291927eba4e63297
https://doi.org/10.1002/jhet.5570320208
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6
A new synthetic approach for imidazo[1,2-a]imidazoles and pyrrolo[1,2-a]imidazoles
Autor: Miha Tišler, Patrik Kolar
Publikováno v: Journal of Heterocyclic Chemistry. 32:141-144
Substituted pyrrolo[1,2-a]imidazoles and imidazo[1,2-a]imidazoles are prepared in a simple one pot reaction sequence from esters of heterocyclic or aromatic α-amino acids. The reaction involves condensation with acetoine followed by cyclization with
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b166771be035dd13f034661154fbb6f0
https://doi.org/10.1002/jhet.5570320123
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7
The synthesis of azatryptophane derivatives
Autor: Branko Stanovnik, Miha Tišler, Jurij Svete
Publikováno v: Journal of Heterocyclic Chemistry. 31:1259-1266
Optically active and racemic isomers of aspartic acid (1) were transformed into the corresponding N-trifluoroacetyl-5-bromo-4-oxonorvaline methyl esters (6, R = Me) and N-trifluoroacetyl-3-formylalanine methyl esters 13, which were used as starting c
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::29976fb878cf16edbd4d4e737c444eee
https://doi.org/10.1002/jhet.5570310524
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8
A Convenient Synthesis of Substituted Pyrroles from Esters of Amino Acids
Autor: Miha Tišler, Patrik Kolar
Publikováno v: Synthetic Communications. 24:1887-1893
A new simple synthesis of substituted pyrroles from alkyl, aryl or heteroaryl substituted α-amino acids is described. Esters of α-amino acids are first reacted with dimethyl acetylenedicarboxylate and in the in situ formed enamines are there-after
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7db622c86271ba02a2dc3fad1dc0928f
https://doi.org/10.1080/00397919408010197
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9
Three substituted 3-amino-2-benzoylaminopropenoic acid derivatives
Autor: Miha Tišler, K. Djinovic‐Carugo, Branko Stanovnik, Ljubo Golič, Ivan Leban, J. Svete, C. Tate
Publikováno v: Acta Crystallographica Section C Crystal Structure Communications. 50:239-245
The molecular structures of three substituted 3-amino-2-benzoylaminopropenoic acid derivatives, methyl (Z)-2-benzoylamino-3-dimethylaminopropenoate (A), methyl (Z)-2-benzoylamino-3-(4,6-dimethyl-2-pyrimidinylamino)propenoate (B) and N-[(Z)-2-benzoyla
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::06428b4f419ce42c22afae67dcafc513
https://doi.org/10.1107/s0108270193006997
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10
The synthesis of β-heteroarylamino-α,β-dehydro-α-amino acid derivativesviathiazolones
Autor: Miha Tišler, Janez Smodis, Branko Stanovnik
Publikováno v: Journal of Heterocyclic Chemistry. 31:199-203
2-Alkoxy-4-heteroarylaminomethylene-5(4H)-thiazolones 4 were converted with various nucleophiles into β-heteroarylamino-α,β-dehydro-α-amino acid derivatives 11, 14, 15, 16, 17, 18, and 19. Reduction of 4 with sodium borohydride in ethanol saturat
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c8e343cc80345508043cbdbdf5c5a0d6
https://doi.org/10.1002/jhet.5570310133
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