NMR a X-ray analýza azokopulačních produktů některých enaminonů s diazoniovými solemi

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F05%3A00003222" target="_blank" >RIV/00216275:25310/05:00003222 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

NMR and X-ray studies of coupling products of some enaminones with diazonium salts

Popis výsledku v původním jazyce

Enaminones reacted with substituted benzenediazonium salts (tetrafluoroborates, hexafluorophosphates, tetraphenylborates, etc.) to give not only the expected products of attack of diazonium ion on methine carbon of enaminone, however, also products of two-fold coupling reaction, various 5-phenyl-diazenylpyridazinium salts, etc. Structures of reaction products depended on substitution of enaminone nitrogen atom, mutual ratio of reaction components and structure of diazonium salts. We measured and analysed 1H, 13C and 15N NMR spectra and characterized azo-hydrazone tautomerism of reaction products in solutions.When some unexpected condensations, rearrangements and inclusions of parts of diazonium salts took place it was very difficult to determine the structures of reaction products using NMR data only. X-ray analyses provided us with the correct structures as well as with azo-hydrazone tautomerism results in the solid state. Having known these structures undoubtedly we were capable of p

Název v anglickém jazyce

NMR and X-ray studies of coupling products of some enaminones with diazonium salts

Popis výsledku anglicky

Enaminones reacted with substituted benzenediazonium salts (tetrafluoroborates, hexafluorophosphates, tetraphenylborates, etc.) to give not only the expected products of attack of diazonium ion on methine carbon of enaminone, however, also products of two-fold coupling reaction, various 5-phenyl-diazenylpyridazinium salts, etc. Structures of reaction products depended on substitution of enaminone nitrogen atom, mutual ratio of reaction components and structure of diazonium salts. We measured and analysed 1H, 13C and 15N NMR spectra and characterized azo-hydrazone tautomerism of reaction products in solutions.When some unexpected condensations, rearrangements and inclusions of parts of diazonium salts took place it was very difficult to determine the structures of reaction products using NMR data only. X-ray analyses provided us with the correct structures as well as with azo-hydrazone tautomerism results in the solid state. Having known these structures undoubtedly we were capable of p

Druh

D - Stať ve sborníku

CEP obor

CC - Organická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GA203%2F03%2F0356" target="_blank" >GA203/03/0356: Tautomerie a vodíková vazba v derivátech beta-enaminonů. Studie pomocí multinukleární NMR a rentgenové difrakce</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2005

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

20th Conference of Central European NMR Discussion Group

ISBN

80-210-3678-8

ISSN

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e-ISSN

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Počet stran výsledku

1

Strana od-do

39

Název nakladatele

Masarykova Univerzita Brno

Místo vydání

Brno (Czech Republic)

Místo konání akce

Valtice (Czech Republic)

Datum konání akce

4. 4. 2005

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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