Zobrazeno 1 - 10
of 494
pro vyhledávání: '"Kurt Polborn"'
Publikováno v:
Synthesis. 53:713-722
1,7-Diazaperylene and various derivatives were synthesised in an upscaleable route from 1,5-diaminoanthraquinone and its Meerwein reaction with acrylonitrile and subsequent cyclisation with ammonia. The application of tert-butyl alcohol as the solv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2757ef690b2c835d67480bfd9a5dcaad
https://doi.org/10.1055/s-0040-1707293
https://doi.org/10.1055/s-0040-1707293
Publikováno v:
ARKIVOC, Vol 2004, Iss 3, Pp 120-131 (2004)
Externí odkaz:
https://doaj.org/article/2af39890387a445e8c5cef771ad7372e
Publikováno v:
SCIREA Journal of Chemistry.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::013eddc77cc5c1dfd0e2e4dd0edb6b7c
https://doi.org/10.54647/chemistry15183
https://doi.org/10.54647/chemistry15183
Publikováno v:
Journal of Heterocyclic Chemistry. 53:537-544
The reaction of 4-aryl-6-bromomethyl-5-nitro-3,4-dihydropyrimidin-2(1H)-ones, containing three possible combinations of substituted and unsubstituted nitrogen atoms with anilines depending on the conditions leads to the products of ring contraction o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47ec8796f4d005f68a1c338cbe03b454
https://doi.org/10.1002/jhet.2326
https://doi.org/10.1002/jhet.2326
Publikováno v:
Zeitschrift für Naturforschung B. 68:707-713
The first macrocycle incorporating two ruthenium sandwich complexes has been synthesised. Key step is a cyclodimerisation by double etherification of a p-chlorophenylalanine-derived [RuCp*]+ complex. Silica-based cation exchange chromatography allowe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bee5c5518cf173e83c9eb823e1dd65a3
https://doi.org/10.5560/znb.2013-3067
https://doi.org/10.5560/znb.2013-3067
Publikováno v:
ChemInform. 47
The reaction of 4-aryl-6-bromomethyl-5-nitro-3,4-dihydropyrimidin-2(1H)-ones, containing three possible combinations of substituted and unsubstituted nitrogen atoms with anilines depending on the conditions leads to the products of ring contraction o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c364924a7d4295381f3c908749f2bec5
https://doi.org/10.1002/chin.201631198
https://doi.org/10.1002/chin.201631198
Autor:
Florian Löbermann, Wolfgang Steglich, Franz von Nussbaum, Matthias Rüth, Kurt Polborn, Tina Hübscher-Weissert, Peter Spiteller
Publikováno v:
European Journal of Organic Chemistry. 2012:380-390
An array of coloured artefacts was formed upon extraction of the mushroom Cortinarius violaceus with methanol. The structures of these pigments were determined by spectroscopic investigations, including NMR and mass spectrometric analyses. Cortiviola
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d10b2ac9e3ae48edfd66f04b29c58c9a
https://doi.org/10.1002/ejoc.201101215
https://doi.org/10.1002/ejoc.201101215
Publikováno v:
Tetrahedron. 66:7279-7287
Three novel sulfur containing chiral bicyclic carboxylic acids were synthesized from d -camphoric acid. Two of these compounds were briefly evaluated for their potency as chiral auxiliaries in Asymmetric Electrophilic α-Amidoalkylation (AEαA) react
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9859b7250f76c122215daa770b94b720
https://doi.org/10.1016/j.tet.2010.07.009
https://doi.org/10.1016/j.tet.2010.07.009
Publikováno v:
Journal of Natural Products. 72:214-217
The main pigment of the basidiomycete Rhizopogon pumilionus is the [13]paracyclophane derivative rhizopogone (1). The structures of 1 and the accompanying 2-acetoxyrhizopogone (5) were determined by spectroscopic studies, including 1D and 2D NMR meas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9bafc899b56089c298ca0374c966a057
https://doi.org/10.1021/np8007073
https://doi.org/10.1021/np8007073
Autor:
Gudrun Silvennoinen, Rainer Hartung, Susanne Schlaf, Hans Rudolf Pfaendler, Gregor Golz, Kurt Polborn, Peter Mayer
Publikováno v:
Synthesis. 2009:495-501
New formaldehyde derivatives were prepared in good yields by a short and versatile route. Several crystal structures of corresponding thioacetic acid esters and thiols were determined. The thioacetates were cleaved under acidic or basic conditions af
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76f65e3a5b534526558e7f3c203cd814
https://doi.org/10.1055/s-0028-1083305
https://doi.org/10.1055/s-0028-1083305