Search Results - "Jakopcic K."

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  1. 1

    New synthesis of substituted isoindolines from furans via epoxyisoindolines by Mance, A. D., Borovička, B., Karaman, B., Jakopčić, K.

    Published in Journal of heterocyclic chemistry (01-09-1999)
    “…The preparation of substituted N‐arylisoindolines 3 from simple furan derivatives 1 is reported. Oxatricycloadducts 2, readily accessible by intramolecular…”
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    Journal Article
  2. 2

    Vladimir Prelog i Zavod za organsku kemiju by Jakopčić, K

    Published in Kemija u industriji (14-03-2007)
    “…Snažna prisutnost organske kemije u nastavnim programima kemijskog inženjerstva i tehnologije vidljiva je od samog osnivanja Kraljevske tehničke visoke škole u…”
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    Conference Proceeding Journal Article
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    New compounds in the reaction of aromatic amines and 5-hydroxy-4-pyrone-2-carboxylate. The influence of a methoxy group by Kožul, M., Stiplošek, Z., Orhanović, Z., Jakopčić, K., Nagl, A., Hergold-Brundić, A.

    Published in Journal of heterocyclic chemistry (01-03-1999)
    “…Unlike most of other aromatic amines, 4‐methoxyaniline with methyl comenate (1) in the mixture of acetic acid and methanol (1:1) gave two unexpected products…”
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    Journal Article
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    A novel non photochemical ring contraction of 4-pyrones to cyclopent-2-enones by Jakopčic, K., Kojić, J., Orhanović, Z., Stiplošek, Z., Nagl, A., Hergold, A.

    Published in Journal of heterocyclic chemistry (01-01-1992)
    “…Unlike comenic acid or most other 4‐pyrones, methyl or ethyl comenate reacts with aromatic amines under mild conditions in the sense of ring contraction to…”
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    Journal Article
  7. 7

    Studies in the furan series. 23. Preparation of some new 5-substituted furfurylallylarylamines. Influence of substituents on the intramolecular Diels-Alder (IMDA) reaction by Klepo, Ž., Jakopčić, K.

    Published in Journal of heterocyclic chemistry (01-11-1987)
    “…Several new N‐allyl‐N‐(5‐substituted)‐2‐furfuryl‐p)‐toluidines IIIa‐e with Cl, Br, I, NO2 or CH3O groups in position 5 of the furan nucleus were prepared by…”
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    Journal Article
  8. 8

    New compounds in ring-opening reaction of 5-substituted epoxyisoindolines by Mance, Ana Dunja, Borovička, Branko, Jakopčić, KreŠImir, Pavlović, Gordana, Leban, Ivan

    Published in Journal of heterocyclic chemistry (01-03-2002)
    “…Methoxy or nitro group present in the furan ring of tertiary alkenylfurfurylamine changes the expected results of both, the intramolecular [4+2]cycloaddition…”
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    Journal Article
  9. 9

    On the photochemical dimerization of some 5-substituted 2-styryl-4-pyrones. The effect of 5-hydroxy-/ 5-methoxy-substitution by Stiplošek, Zdenka, Šindler-Kulyk, Marija, Jakopčić, KreŠImir, Višnjevac, Aleksandar, KojiĆ-ProdiĆ, Biserka

    Published in Journal of heterocyclic chemistry (01-01-2002)
    “…Irradiation of styryl‐4‐pyrones 1a‐1d or 2a‐2e (6‐9 × 10−3 M, methanol solution) with filtered (RAYONET photochemical reactor, 300 nm) or unfiltered uv‐light…”
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    Journal Article
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    New epoxyisoindolines by intramolecular diels-alder reactions of some methyl-substituted allylaryl-2-furfurylamines by Mance, Ana Dunja, Šindler-Kulyk, Marija, Jakopčić, KreŠImir, Hergold-Brundić, Antonija, Nagl, Ante

    Published in Journal of heterocyclic chemistry (01-07-1997)
    “…N‐Alkenyl‐N‐(5‐substituted‐2‐furfuryl)‐N‐p‐toluidines 1–10 have been selected to study the intramolecular Diels‐Alder reaction of furans. New epoxyisoindolines…”
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    Journal Article
  14. 14

    Synthesis of 5-Arylamino-4-pyrone Carboxamides. A Contribution to the Knowledge About the Reaction of Aromatic Amines and 5-Hydroxy-4-pyrones by Kožul, Mirjana, Stiplošsek, Zdenka, Kojić, Josipa, Orhanović, Zlata, Jakopčić, Krešimir

    Published in Synthetic communications (01-11-1997)
    “…The reaction of aromatic amine and 5-hydroxy-4-pyrone carboxylates in glacial acetic acid gave new type of 4-pyrone derivatives, that is 5-arylamino-4-pyrone…”
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    Journal Article
  15. 15

    The preparation of some 1-(2-furyl)-2-arylethylenes by Karminski-Zamola, G., Jakopčić, K.

    Published in Journal of heterocyclic chemistry (01-01-1981)
    “…Some 1‐(2‐furyl)‐2‐arylethylenes, where the furan nucleus is substituted in position 5 with a methyl or p‐chlorophenyl group and where the aryl group is…”
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    Journal Article
  16. 16

    Preparation of 3-hydroxy- and 3-methoxy-N-heteroaryl-2-methyl-4-pyridones by Jakopčić, Krešimir, Mintas, Mladen, Isufi, Islam

    Published in Journal of heterocyclic chemistry (01-03-1993)
    “…A number of new 3‐hydroxy‐ and 3‐methoxy‐2‐methyl‐4‐pyridones substituted on the nitrogen atom with selected heterocycles has been prepared. Novel chelating…”
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    Journal Article
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    Photochemical methoxy/hydroxymethyl rearrangement in 3-methoxy-N-substituted-4-pyriclones by Stiplošek, Z., Šindler-Kulyk, M., Jakopĉić, K., Meić, Z., Vikić-Topić, D.

    Published in Journal of heterocyclic chemistry (01-11-1989)
    “…N‐Substituted 3‐methoxy‐4‐pyridones Ia‐e rearrange to the corresponding N‐substituted 3‐hydroxymethyl‐4‐pyridones IIa‐e when irradiated at 254 or 300 nm in…”
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    Journal Article