Please use this identifier to cite or link to this item: http://dx.doi.org/10.18419/opus-1171
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dc.contributor.authorEffenberger, Franzde
dc.contributor.authorKühlwein, Jürgende
dc.contributor.authorHopf, Martinde
dc.contributor.authorStelzer, Uwede
dc.date.accessioned2009-08-28de
dc.date.accessioned2016-03-31T07:47:49Z-
dc.date.available2009-08-28de
dc.date.available2016-03-31T07:47:49Z-
dc.date.issued1993de
dc.identifier.other316275972de
dc.identifier.urihttp://nbn-resolving.de/urn:nbn:de:bsz:93-opus-44558de
dc.identifier.urihttp://elib.uni-stuttgart.de/handle/11682/1188-
dc.identifier.urihttp://dx.doi.org/10.18419/opus-1171-
dc.description.abstractEsters of N-phthaloyl-protected (R)- or (S)-didehydro dipeptides 5-7 were obtained in good yields by the perrhenate-catalyzed decomposition of 2-azidocarboxylates 1 with N-phthaloyl-protected (R)- or (S)-amino acid chlorides 2 in presence of at least equimolar amounts of N-methyl-2-pyridone (4) as acylation catalyst. Esters of didehydro tripeptides 16 were obtained in a comparable procedure from the optically active amino acid chlorides 2 and 2-(2-azidoacyl)amino acid esters 15, which were prepared from 2-azidocarboxylic acids 12 or the corresponding chlorides 13 with 2-amino acid ester hydrochlorides (S)-14. - As an example, the unprotected (S)-alanly-didehydrovalin 20 was prepared from the didehydro dipeptide 18a without any racemization by hydrolysis of the benzyl ester and subsequent hydrogenolytic removal of the N-phthaloyl group.en
dc.language.isodede
dc.rightsinfo:eu-repo/semantics/openAccessde
dc.subject.classificationAminosäuren , Peptidede
dc.subject.ddc540de
dc.titleEine neue Synthese von Didehydrodipeptiden und Didehydrotripeptiden (Aminosäuren ; 17)de
dc.title.alternativeA new synthesis of didehydro dipeptides and didehydro tripeptides (Amino acids ; 17)en
dc.typearticlede
ubs.fakultaetFakultät Chemiede
ubs.institutInstitut für Organische Chemiede
ubs.opusid4455de
ubs.publikation.sourceJustus Liebigs Annalen der Chemie (1993), S. 1303-1311. URL http://dx.doi.org./10.1002/jlac.1993199301212de
ubs.publikation.typZeitschriftenartikelde
Appears in Collections:03 Fakultät Chemie

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