. "Reakc\u00ED 3-fenylaminocyklopent-2-en-1-onu s 4-methyl, 4-methoxy a 4-chlorbenzendiazonium-tetrafluorbor\u00E1ty byly p\u0159ipraveny azokopula\u010Dn\u00ED produkty 3a-c. Bylo zji\u0161t\u011Bno, \u017Ee tyto slou\u010Deniny existuj\u00ED jak v roztoku CDCl3, tak i v pevn\u00E9 f\u00E1zi prakticky jako (E)-3-fenylamino-2-(4-subst.fenyldiazenyl)cyklopent-2-en-1-ony s N?H???N intramolekul\u00E1rn\u00ED vod\u00EDkovou vazbou. Substituce na diazoniov\u00E9 soli nem\u00E1 vliv na polohu tautomern\u00ED rovnov\u00E1hy. Slou\u010Deniny 4a,b vznikl\u00E9 reakc\u00ED 3-fenylamino-1H-inden-1-onu s 4-methylbenzen nebo benzendiazonium-tetrafluorbor\u00E1tem jsou v roztoku CDCl3 i v pevn\u00E9 f\u00E1zi jako hydrazoslou\u010Deniny. V roztoku tvo\u0159\u00ED t\u0159i formy, z nich\u017E dv\u011B byly identifikov\u00E1ny jako E/Z izomery li\u0161\u00EDc\u00ED se typem vod\u00EDkov\u00FDch vazeb. Slou\u010Denina 5 vznikl\u00E1 reakc\u00ED 3-amino-5,5-dimethylcyklohex-2-en-1-onu s 4-methoxybenzendiazonium-tetrafluorbor\u00E1tu byla p\u0159evedena na stabiln\u00ED hydrochlorid 5?HCl st\u00E1n\u00EDm v chloroformu; tento produkt vykazuje vysok\u00FD stupe\u0148 delokalizace kladn\u00E9ho n\u00E1boje. Jej\u00ED struktura byla studov\u00E1na X-ray."@cs . . . "Svobodov\u00E1, Mark\u00E9ta" . "Synthesis and Structure of Some Azo Coupled Cyclic beta-Enaminones"@en . "Mach\u00E1\u010Dek, Vladim\u00EDr" . "RIV/00216275:25310/07:00006564!RIV08-MSM-25310___" . "4" . . . . "RIV/00216275:25310/07:00006564" . "0749-1581" . "P\u0159\u00EDprava a struktura n\u011Bkter\u00FDch azokopulovan\u00FDch cyklick\u00FDch beta-enaminon\u016F"@cs . "[D5E09C0F1FF3]" . "6"^^ . "Synthesis and Structure of Some Azo Coupled Cyclic beta-Enaminones" . . . . . "Bertolasi, Valerio" . "\u0160im\u016Fnek, Petr" . . "10"^^ . "The reaction of 3-phenylaminocyclopent-2-en-1-one with 4-methyl, 4-methoxy and 4-chlorobenzenediazonium tetrafluoroborates was used to prepare the azo coupling products 3a-c. It was found out that these compounds are present in both CDCl3 solution and solid phase practically exclusively as (E)-3-phenylamino-2-(4-subst.phenyldiazenyl)cyclopent-2-en-1-ones with N?H???N intramolecular hydrogen bond. The substitution of the phenyl residue of the diazonium salt has no effect on the position of the tautomeric equilibrium. On the other hand, the compounds 4a,b formed by the reaction of 3-phenylamino-1H-inden-1-one with 4-methylbenzene- or benzenediazonium tetrafluoroborates exist in CDCl3 solution and in solid phase as hydrazone compounds. In the solution they occur as a mixture of three forms, out of which two were identified as E/Z isomers with different types of hydrogen bonds. Compound 5 formed by the reaction of 3-amino-5,5-dimethylcyclohex-2-en-1-one with 4-methoxybenzenediazonium tetrafluoroborate is" . "P\u0159\u00EDprava a struktura n\u011Bkter\u00FDch azokopulovan\u00FDch cyklick\u00FDch beta-enaminon\u016F"@cs . . "330-339" . "45" . "1H; 13C; 15N NMR; azo coupling; tautomerism; enaminones; X-Ray; NMR"@en . . . "Ly\u010Dka, Anton\u00EDn" . . . . "GB - Spojen\u00E9 kr\u00E1lovstv\u00ED Velk\u00E9 Brit\u00E1nie a Severn\u00EDho Irska" . . "453899" . "Synthesis and Structure of Some Azo Coupled Cyclic beta-Enaminones"@en . "Z(MSM0021627501)" . . . "The reaction of 3-phenylaminocyclopent-2-en-1-one with 4-methyl, 4-methoxy and 4-chlorobenzenediazonium tetrafluoroborates was used to prepare the azo coupling products 3a-c. It was found out that these compounds are present in both CDCl3 solution and solid phase practically exclusively as (E)-3-phenylamino-2-(4-subst.phenyldiazenyl)cyclopent-2-en-1-ones with N?H???N intramolecular hydrogen bond. The substitution of the phenyl residue of the diazonium salt has no effect on the position of the tautomeric equilibrium. On the other hand, the compounds 4a,b formed by the reaction of 3-phenylamino-1H-inden-1-one with 4-methylbenzene- or benzenediazonium tetrafluoroborates exist in CDCl3 solution and in solid phase as hydrazone compounds. In the solution they occur as a mixture of three forms, out of which two were identified as E/Z isomers with different types of hydrogen bonds. Compound 5 formed by the reaction of 3-amino-5,5-dimethylcyclohex-2-en-1-one with 4-methoxybenzenediazonium tetrafluoroborate is"@en . "Magnetic Resonance in Chemistry" . "Luskov\u00E1, Lucie" . . . "25310" . "Synthesis and Structure of Some Azo Coupled Cyclic beta-Enaminones" . "3"^^ .