Výsledky vyhledávání - "Jörg Wuckelt"

Double Anion Capture Reactions of Anthranilic Esters with Oxaldiimidoyl Dichlorides − Efficient Synthesis of 2,2′-Biquinazoline-4,4′(3H,3′H)-diones

Autor: Peter Langer, Helmar Görls, Manfred Döring, Jörg Wuckelt

Publikováno v: European Journal of Organic Chemistry. 2001:1503-1509

The reaction of anthranilic acids with oxaldiimidoyl dichlorides offers a new and convenient synthesis of quinazolin-4-ones. Condensation of anthranilic esters with diimidoyl dichlorides affords 2,2′-biquinazoline-4,4′(3H,3′H)-diones, which con

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f65ecba3907c8989cd35cf41a090c3b9
https://doi.org/10.1002/1099-0690(200104)2001:8<1503::aid-ejoc1503>3.0.co

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Synthesis and Properties of Dimetallic Complexes Based on a New Oxalamidine-Derived Ligand System with Pendant Pyridine Functionality

Autor: Peter Langer, Helmar Görls, Jörg Wuckelt, Manfred Döring

Publikováno v: European Journal of Inorganic Chemistry. 2001:805-811

Reaction of sterically hindered bis(imidoyl)chlorides of oxalic acid with picolylamine afforded conformationally locked oxalic acid-derived amidines with pendant pyridine functionalities. Based on this new multivalent ligand system, dimetallic comple

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::36a4c7eb8fe6ded3f017ce6bfbf83384
https://doi.org/10.1002/1099-0682(200103)2001:3<805::aid-ejic805>3.0.co

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New heterocycles with cycloamidine substructure and their ringtransformation reactions with acetylene dicarboxylic ester

Autor: Thomas Billot, Helmar Görls, Peer Fehling, Jörg Wuckelt, Manfred Döring, Rainer Beckert

Publikováno v: Journal of Heterocyclic Chemistry. 38:205-211

The synthesis of pyrido[2,1-c]-1,2,4-triazines 6, pyrido[1,2-b]-1,2,4-triazines 7 and pyrido[1,2-b]pyri-dazines 8 respectively by cycloacylation of derivatives of pyridine with imidoylchlorides of type 2 is described. The heterocycles of type 6 as we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eeb00933ee82e32e935d67eb7127e26f
https://doi.org/10.1002/jhet.5570380131

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Stereoselective Synthesis of 2-Alkylidene-3-iminoindoles by Reaction of 1,1-Dianions with Oxalic Acid Bis(imidoyl) Chlorides

Autor: Peter Langer, Helmar Görls, and Manfred Döring, Jörg Wuckelt

Publikováno v: The Journal of Organic Chemistry. 65:3603-3611

Treatment of dilithiated nitriles and sulfones with oxalic acid bis(imidoyl) chlorides resulted in a new cyclization reaction which provided a variety of (3-imino-2, 3-dihydro-1H-indol-2-ylidene)acetonitriles and -sulfones in good yields. The reactio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1d775db132c616ce2d899a51adf3607
https://doi.org/10.1021/jo991701l

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New and Efficient Synthesis of Pyrrolo[3,2-b]pyrrole-2,5-diones by Double-Anion-Capture Reactions of Ester Carbanions with Bis(imidoyl)chlorides of Oxalic Acid

Autor: and Jörg Wuckelt, Manfred Döring, Peter Langer

Publikováno v: The Journal of Organic Chemistry. 65:729-734

A variety of pyrrolo[3,2-b]pyrrole-2,5-diones were efficiently prepared by a new domino-reaction of ester carbanions with oxalic acid−bis(imidoyl)chlorides. This reaction proceeded by condensation of 2 equiv of the ester with the bis(imidoyl)chlori

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d55f785c3bfb982e8e7ec0601f6ab2e6
https://doi.org/10.1021/jo991377u

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Regioselective Synthesis of 5-Ylidenepyrrol-2(5H)-ones by Reaction of Transition Metal-Coordinated Bis(imidoyl) Chlorides with Carbon Nucleophiles

Autor: Peter Langer, Rainer Beckert, Jörg Wuckelt, Helmar Görls, Manfred Döring

Publikováno v: The Journal of Organic Chemistry. 64:365-372

A regioselective transition metal mediated domino reaction of carbon nucleophiles with oxalic acid-bis(imidoyl)chlorides is reported. This reaction provides a convenient access to E-configured 5-yl...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4793f38df883612d3af9b1e38d64eeef
https://doi.org/10.1021/jo9805910

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A new and convenient synthesis of α-tetramic acid amides via a cobalt(II)-mediated reaction cascade

Autor: Rainer Beckert, Jörg Wuckelt, Manfred Döring, Peter Langer, Helmar Görls

Publikováno v: Tetrahedron Letters. 39:1135-1138

A novel cobalt(II)-mediated domino reaction of carbon nucleophiles with 1a-d has been developed. The resulting cyclization regioselectively yields functionalized α-tetramic acid amides.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e871a3593c375c5ad8c3a248e0456209
https://doi.org/10.1016/s0040-4039(97)10872-3

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