| Attributes | Values |
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| rdf:type
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| Description
| - Diazonium salt 2 obtained by diazotation of 3-[3-(6-azauracil-5-yl)-2-aminophenyl]-1,2-dihydro-quinoxalin-3-one 12 was used as a starting compound for the preparation of corresponding 2-hydroxy, 2-chloro, 2-bromo, and 2-iodo derivatives 4-7 using SN1 or Sandmeyer reaction. The diazonium salt 2 was converted by reductive cleavage to 3-[3-(6-azauracil-5-yl)phenyl]-1,2-dihydro-quinoxalin-2-one 3 and its coupling with malondinitrile or ethyl cyanoacetylcarbamate gave corresponding hydrazones 9 or 10. Hydrazone 9 was converted to 4-arylazo-3,5-diaminopyrazole 11 via cyclization with hydrazine, and hydrazone 10 was cyclized to 1-[2-(6-azauracil-5-yl)-6-(3,4-dihydro-3-oxo-quinoxalin-2-yl)phenyl]-6-azauracil-5-carbonitrile 12. The slow decomposition of diazonium salt 2 led to benzofuro- derivative 13 that was also found as an undesired side product of all the above mentioned SN1 reactions. Hydrazino derivative 8, which is an intermediate of diazonium salt 2 reduction or hydrazone 10 hydrolysis, was cyclized,
- Diazonium salt 2 obtained by diazotation of 3-[3-(6-azauracil-5-yl)-2-aminophenyl]-1,2-dihydro-quinoxalin-3-one 12 was used as a starting compound for the preparation of corresponding 2-hydroxy, 2-chloro, 2-bromo, and 2-iodo derivatives 4-7 using SN1 or Sandmeyer reaction. The diazonium salt 2 was converted by reductive cleavage to 3-[3-(6-azauracil-5-yl)phenyl]-1,2-dihydro-quinoxalin-2-one 3 and its coupling with malondinitrile or ethyl cyanoacetylcarbamate gave corresponding hydrazones 9 or 10. Hydrazone 9 was converted to 4-arylazo-3,5-diaminopyrazole 11 via cyclization with hydrazine, and hydrazone 10 was cyclized to 1-[2-(6-azauracil-5-yl)-6-(3,4-dihydro-3-oxo-quinoxalin-2-yl)phenyl]-6-azauracil-5-carbonitrile 12. The slow decomposition of diazonium salt 2 led to benzofuro- derivative 13 that was also found as an undesired side product of all the above mentioned SN1 reactions. Hydrazino derivative 8, which is an intermediate of diazonium salt 2 reduction or hydrazone 10 hydrolysis, was cyclized, (en)
- Práce se zabývá studiem reaktivity diazoniové soli vzniklé z 3-[3-(6-azauracil-5-yl)-2-aminophenyl]-1,2-dihydro-quinoxalin-3-onu a využitím této soli k syntéze nejrůznějších substitučních analog. (cs)
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| Title
| - Polycyclic Heterocycles with Acidic N-H Group VII. Synthesis of some polynuclear heterocyclic compounds derived from 5-phenyl-6-azauracile
- Polycyclic Heterocycles with Acidic N-H Group VII. Synthesis of some polynuclear heterocyclic compounds derived from 5-phenyl-6-azauracile (en)
- Vícejaderné heterocykly s kyselou NH skupinou VII. Syntéza některých vícejaderných heterocyklických sloučenin odvozených od 5-fenyl-6-azauracilu. (cs)
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| skos:prefLabel
| - Polycyclic Heterocycles with Acidic N-H Group VII. Synthesis of some polynuclear heterocyclic compounds derived from 5-phenyl-6-azauracile
- Polycyclic Heterocycles with Acidic N-H Group VII. Synthesis of some polynuclear heterocyclic compounds derived from 5-phenyl-6-azauracile (en)
- Vícejaderné heterocykly s kyselou NH skupinou VII. Syntéza některých vícejaderných heterocyklických sloučenin odvozených od 5-fenyl-6-azauracilu. (cs)
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| skos:notation
| - RIV/61989592:15310/06:00003254!RIV07-MSM-15310___
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| http://linked.open.../vavai/riv/strany
| |
| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/61989592:15310/06:00003254
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - heterocyclic N-H acids; polynuclear 6-azauracils; substituted 1; 2-dihydro-quinoxalin-2-ones; [1; 2; 4]triazines (en)
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| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| |
| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...v/svazekPeriodika
| |
| http://linked.open...iv/tvurceVysledku
| - Hlaváč, Jan
- Buchtík, Roman
- Slouka, Jan
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| http://linked.open...n/vavai/riv/zamer
| |
| issn
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| number of pages
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| http://localhost/t...ganizacniJednotka
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| is http://linked.open...avai/riv/vysledek
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