About: Imidazole-based Potential Bi- and Tridentate Nitrogen Ligands: Synthesis, Characterization and Application in Asymmetric Catalysis

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Description	Twelve new imidazole-based potential bi- and tridentate ligands were synthesized and characterized. Whereas in the first series the α-amino acid and imidazolemoieties were linked by an amino bond, in the second series the tridentate ligands, containing two imidazole groups, were separated by an amide bond. The first series was obtained by the reductive amination of 2-phenylimidazole-4-carboxaldehyde with α-amino acid esters. The tridentate ligands were prepared from 2-phenylimidazole-4-carboxylic acid and chiral amines. In the Henry reaction, the amines were revealed as a more reactive species than the less nucleophilic amides, however the enantiomeric excesses were generally poor. Twelve new imidazole-based potential bi- and tridentate ligands were synthesized and characterized. Whereas in the first series the α-amino acid and imidazolemoieties were linked by an amino bond, in the second series the tridentate ligands, containing two imidazole groups, were separated by an amide bond. The first series was obtained by the reductive amination of 2-phenylimidazole-4-carboxaldehyde with α-amino acid esters. The tridentate ligands were prepared from 2-phenylimidazole-4-carboxylic acid and chiral amines. In the Henry reaction, the amines were revealed as a more reactive species than the less nucleophilic amides, however the enantiomeric excesses were generally poor. (en) Bylo syntetizováno dvanáct nových bi- resp. tridentátních ligandů na bázi imidazolu. Zatímco první série je tvořena amino sloučeninami, druhá série obsahuje vazbu amidickou a dva imidazolové kruhy. První série látek byla získána reduktivní aminací 2-fenylimidazol-4-karboxaldehydu s estery amino kyselin. Tridentátní ligandy byly připraveny z 2-fenylimidazol-4-karboxylové kyseliny a chirálních aminů. V Henryho reakci byly aminy více reaktivní než méně nukleofilní amidy, nicméně enantiomerní přebytky jsou obecně nízké. (cs)
Title	Imidazole-based Potential Bi- and Tridentate Nitrogen Ligands: Synthesis, Characterization and Application in Asymmetric Catalysis Bi- a tridentátní dusíkaté ligandy na bázi imdiazolu: Syntéza, charakterizace a applikace v asymmetrické katalýze (cs) Imidazole-based Potential Bi- and Tridentate Nitrogen Ligands: Synthesis, Characterization and Application in Asymmetric Catalysis (en)
skos:prefLabel	Imidazole-based Potential Bi- and Tridentate Nitrogen Ligands: Synthesis, Characterization and Application in Asymmetric Catalysis Bi- a tridentátní dusíkaté ligandy na bázi imdiazolu: Syntéza, charakterizace a applikace v asymmetrické katalýze (cs) Imidazole-based Potential Bi- and Tridentate Nitrogen Ligands: Synthesis, Characterization and Application in Asymmetric Catalysis (en)
skos:notation	RIV/00216275:25310/08:00007774!RIV09-MSM-25310___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM0021627501)
http://linked.open...iv/cisloPeriodika	9
http://linked.open...vai/riv/dodaniDat	2009
http://linked.open...aciTvurceVysledku	Bureš, Filip Kulhánek, Jiří Pytela, Oldřich
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	371430
http://linked.open...ai/riv/idVysledku	RIV/00216275:25310/08:00007774
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	imidazole; amino acid; Henry reaction (en)
http://linked.open.../riv/klicoveSlovo	Henry reaction amino acid imidazole
http://linked.open...odStatuVydavatele	CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV	[0050283580F7]
http://linked.open...i/riv/nazevZdroje	Molecules
http://linked.open...in/vavai/riv/obor	CC
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	13
http://linked.open...iv/tvurceVysledku	Bureš, Filip Kulhánek, Jiří Pytela, Oldřich Sívek, Roman
http://linked.open...n/vavai/riv/zamer	Aimed preparation of special compounds and materials and investigation of their physical and chemical properties and supramolecular structures
issn	1420-3049
number of pages	14 (xsd:int)
http://localhost/t...ganizacniJednotka	25310
is http://linked.open...avai/riv/vysledek of	Imidazole-based Potential Bi- and Tridentate Nitrogen Ligands: Synthesis, Characterization and Application in Asymmetric Catalysis Imidazole-based Potential Bi- and Tridentate Nitrogen Ligands: Synthesis, Characterization and Application in Asymmetric Catalysis Imidazole-based Potential Bi- and Tridentate Nitrogen Ligands: Synthesis, Characterization and Application in Asymmetric Catalysis Imidazole-based Potential Bi- and Tridentate Nitrogen Ligands: Synthesis, Characterization and Application in Asymmetric Catalysis

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