About: Formation of Pyridazinium Salts by Azo Coupling of N-Substituted 3-Amino-1-phenylbut-2-en-1-ones and Diazonium Salts

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About: Formation of Pyridazinium Salts by Azo Coupling of N-Substituted 3-Amino-1-phenylbut-2-en-1-ones and Diazonium Salts Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Treatment of 3-(2,4-dimethoxyphenylamino)- and 3-methylamino-1-phenylbut-2-en-1-ones with some benzenediazonium tetrafluoroborates gives, besides the usual azo coupling products [i.e., 3-(substituted imino)-1-phenylbutane-1,2-diones 2-(4-substituted phenylhydrazones) and 2-(4-methoxyphenyldiazenyl)-3-methylamino-1-phenylbut-2-en-1-one, respectively], the previously unreported 1,4,5,6-tetrasubstituted pyridazinium tetrafluoroborates. The pyridazinium salts have been identified by X-ray analysis and by their 1H, 13C, 15N, 11B and 19F NMR spectra. Their formation is most probably the result of nucleophilic attack on the carbonyl carbon by the nitrogen of the hydrazone group and subsequent dehydration. Treatment of 3-(2,4-dimethoxyphenylamino)- and 3-methylamino-1-phenylbut-2-en-1-ones with some benzenediazonium tetrafluoroborates gives, besides the usual azo coupling products [i.e., 3-(substituted imino)-1-phenylbutane-1,2-diones 2-(4-substituted phenylhydrazones) and 2-(4-methoxyphenyldiazenyl)-3-methylamino-1-phenylbut-2-en-1-one, respectively], the previously unreported 1,4,5,6-tetrasubstituted pyridazinium tetrafluoroborates. The pyridazinium salts have been identified by X-ray analysis and by their 1H, 13C, 15N, 11B and 19F NMR spectra. Their formation is most probably the result of nucleophilic attack on the carbonyl carbon by the nitrogen of the hydrazone group and subsequent dehydration. (en) Reakcí 3-(2,4-dimethoxyfenylamino)- and 3-methylamino-1-fenylbut-2-en-1-onů s některými benzenediazonium tetrafluoroboráty poskytuje kromě obvyklého produktu azokopulace tj., 3-(subst. imino)-1-fenylbutan-1,2-dionů a 2-(4-subs. fenylhydrazonů a 2-(4-methoxyfenyldiazenyl)-3-methylamino-1-fenylbut-2-en-1-on i doposud nepopsaný 1,4,5,6-tetrasubstituovaný pyridazinium tetrafluoroborát. Pyridaziniová sůl byla identifikována rentgenostrukturní analýzou a 1H, 13C, 15N, 11B a 19F NMR spektry. (cs)
Title	Tvorba pyridaziniových solí při azokopulaci N-substituovaných 3-Amino-1-fenylbut-2-en-1-onů a diazoniových solí (cs) Formation of Pyridazinium Salts by Azo Coupling of N-Substituted 3-Amino-1-phenylbut-2-en-1-ones and Diazonium Salts Formation of Pyridazinium Salts by Azo Coupling of N-Substituted 3-Amino-1-phenylbut-2-en-1-ones and Diazonium Salts (en)
skos:prefLabel	Tvorba pyridaziniových solí při azokopulaci N-substituovaných 3-Amino-1-fenylbut-2-en-1-onů a diazoniových solí (cs) Formation of Pyridazinium Salts by Azo Coupling of N-Substituted 3-Amino-1-phenylbut-2-en-1-ones and Diazonium Salts Formation of Pyridazinium Salts by Azo Coupling of N-Substituted 3-Amino-1-phenylbut-2-en-1-ones and Diazonium Salts (en)
skos:notation	RIV/00216275:25310/04:00001970!RIV08-GA0-25310___
http://linked.open.../vavai/riv/strany	5055-5063
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA203/03/0356)
http://linked.open...iv/cisloPeriodika	24
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Šimůnek, Petr Macháček, Vladimír
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Pardubice / Fakulta chemicko-technologická
http://linked.open...dnocenehoVysledku	564717
http://linked.open...ai/riv/idVysledku	RIV/00216275:25310/04:00001970
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Azo Coupling; Diazonium salts; Pyridazinium salts (en)
http://linked.open.../riv/klicoveSlovo	Diazonium salts Azo Coupling Pyridazinium salts
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[E50460199951]
http://linked.open...i/riv/nazevZdroje	European Journal of Organic Chemistry
http://linked.open...in/vavai/riv/obor	CC
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Tautomerism and hydrogen bonding in beta-eneminone derivatives. Multinuclear and X-ray study
http://linked.open...UplatneniVysledku	2004
http://linked.open...v/svazekPeriodika	N
http://linked.open...iv/tvurceVysledku	Šimůnek, Petr Lyčka, Antonín Macháček, Vladimír Bertolasi, Valerio Pešková, Markéta
issn	1434-193X
number of pages	9 (xsd:int)
http://localhost/t...ganizacniJednotka	25310

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