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<https://d-nb.info/1328775062> a bibo:Issue;
  dcterms:medium <http://rdaregistry.info/termList/RDACarrierType/1018>;
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  rdau:P60048 <http://rdaregistry.info/termList/RDACarrierType/1018>;
  dc:identifier "(DE-101)1328775062";
  umbel:isLike <https://doi.org/10.1002/cber.19771101215>, <https://nbn-resolving.org/urn:nbn:de:101:1-2405090351512.367771002462>;
  dcterms:format <https://www.iana.org/assignments/media-types/application/pdf>;
  foaf:primaryTopic <https://doi.org/10.1002/cber.19771101215>;
  dcterms:language <http://id.loc.gov/vocabulary/iso639-2/eng>;
  a bibo:Article;
  dc:title "Ringumwandlungen in der Isatinreihe, IV. Spirocyclisierungen";
  dcterms:creator _:node1k0rmm5k0x26307605 .

_:node1k0rmm5k0x26307605 gndo:preferredName "Capuano, Lilly" .

<https://d-nb.info/1328775062> marcRole:aut _:node1k0rmm5k0x26307606 .

_:node1k0rmm5k0x26307606 gndo:preferredName "Capuano, Lilly" .

<https://d-nb.info/1328775062> marcRole:aut _:node1k0rmm5k0x26307607 .

_:node1k0rmm5k0x26307607 gndo:preferredName "Benz, Karl" .

<https://d-nb.info/1328775062> bibo:pageStart "3849";
  bibo:pageEnd "3861";
  dcterms:extent "13 S.";
  dcterms:isPartOf <https://ld.zdb-services.de/resource/2224932-1>;
  dcterms:description "Ring Transformations in the Isatine Series, IV. Spirocyclizations The 4‐hydroxy‐1,2,3,4‐tetrahydro‐4‐quinazolinecarboxanilides and ‐N‐benzoylcarbohydrazides 6i–I, prepared from the 1‐isatinecarboxamides 1b,c by aminolysis, are converted into the spiro‐imidazoles 7, the spirooxazole 10, and the spiroindoles 5 by treatment with isocyanates, acetic anhydride, or by heating. The reaction of the (2‐acetamidophenyl) glyoxylanilides 2b,c with isocyanates involves competitive ring closure to 5 or to the spiro[benzoxazine‐imidazoles] 4. By displacement of the hydroxy group by malononitrile, the reactivity of 6 toward nucleophiles is increased: the esters 6n,o undergo cyclization with o‐phenylenediamine to form the spiro[quinazoline‐quinoxalines] 11, whereas the anilides or hydrazides 6i–I are readily converted into the spiro[quinazoline‐pyrroles] 9."@de,
    "Abstract: Durch Aminolyse der 1‐Isatincarboxamide 1b,c werden die 4‐Hydroxy‐1,2,3,4‐tetrahydro‐4‐chinolincarboxanilide und ‐N‐benzoylcarbohydrazide 6i–I hergestellt und mit Isocyanaten, Acetanhydrid bzw. thermisch in die Spiroimidazole 7, das Spirooxazol 10 bzw. die Spiroindole 5 übergeführt. Bei der Reaktion der (2‐Acetamidophenyl) glyoxylanilide 2b,c mit Isocyanaten konkurriert der Ringschluß zu 5 mit der Bildung der Spiro[benzoxazin‐imidazole] 4. Durch Austausch der Hydroxygruppe gegen Malononitril wird die Reaktivität von 6 gegen Nucleophile gesteigert: die Ester 6n,o cyclisieren mit o‐Phenylendiamin zu Spiro[chinazolin‐chinoxalinen] 11; die Anilide bzw. Hydrazide 6i–I gehen spontan in die Spiro[chinazolin‐pyrrole] 9 über."@de;
  dcterms:license <http://onlinelibrary.wiley.com/termsAndConditions#vor>;
  wdrs:describedby <https://d-nb.info/1328775062/about> .

<https://d-nb.info/1328775062/about> dcterms:license <http://creativecommons.org/publicdomain/zero/1.0/>;
  dcterms:modified "2024-05-09T21:39:37.000"^^xsd:dateTime .

<https://d-nb.info/1328775062> dcterms:issued "2006";
  bibo:issue "110.2006, 12";
  owl:sameAs <http://hub.culturegraph.org/resource/DNB-1328775062> .

