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Coordination compounds based on 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid
P Jansa, V Machacek, P Nachtigall, V Wsol, M Svobodova
Jazyk angličtina Země Švýcarsko
NLK
Directory of Open Access Journals
od 1997
Free Medical Journals
od 1997
PubMed Central
od 2001
Europe PubMed Central
od 2001
ProQuest Central
od 1997-01-01
Open Access Digital Library
od 1997-01-01
Health & Medicine (ProQuest)
od 1997-01-01
PubMed
17873841
DOI
10.3390/12051064
Knihovny.cz E-zdroje
- MeSH
- financování organizované MeSH
- kovy MeSH
- magnetická rezonanční spektroskopie MeSH
- molekulární konformace MeSH
- tetrahydroisochinoliny chemie MeSH
Syntheses of 2,6-bis[((3S)-3-(methoxycarbonyl)-1,2,3,4-tetrahydroisoquinolin-2-yl)carbonyl]pyridine and its coordination compounds with Cu2+, Co2+, Co3+, or Fe3+ are described. By means of 1H- and 13C-NMR spectra it was proved that 2,6-bis[((3S)-3-(methoxycarbonyl)-1,2,3,4-tetrahydroisoquinolin-2-yl)carbonyl]pyridine as well as its coordination compound with Co3+ exist in the form of a mixture of three conformers, differing in the conformations at the two amide groups present. The prepared coordination compounds were tested in the enantioselective catalysis of the nitroaldol addition of nitromethane with 2-nitrobenzaldehyde or 4-nitrobenzaldehyde, and in the Michael addition of ethyl 2-oxocyclohexanecarboxylate to but-3-en-2-one.
Citace poskytuje Crossref.org
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- $a Syntheses of 2,6-bis[((3S)-3-(methoxycarbonyl)-1,2,3,4-tetrahydroisoquinolin-2-yl)carbonyl]pyridine and its coordination compounds with Cu2+, Co2+, Co3+, or Fe3+ are described. By means of 1H- and 13C-NMR spectra it was proved that 2,6-bis[((3S)-3-(methoxycarbonyl)-1,2,3,4-tetrahydroisoquinolin-2-yl)carbonyl]pyridine as well as its coordination compound with Co3+ exist in the form of a mixture of three conformers, differing in the conformations at the two amide groups present. The prepared coordination compounds were tested in the enantioselective catalysis of the nitroaldol addition of nitromethane with 2-nitrobenzaldehyde or 4-nitrobenzaldehyde, and in the Michael addition of ethyl 2-oxocyclohexanecarboxylate to but-3-en-2-one.
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