Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Thomas Hopfmann"'
Autor:
Hans-Joachim Knölker, Thomas Hopfmann
Publikováno v:
Tetrahedron. 58:8937-8945
Highly efficient syntheses of the free radical scavenger carazostatin and its O-methyl derivative are described using cyclohexa-1,3-diene and 2-heptyl-4-methoxy-3-methylaniline as starting materials and iron-mediated oxidative cyclizations as key-ste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4482d8ebfb527d941b08999cb948c2ca
https://doi.org/10.1016/s0040-4020(02)01180-8
https://doi.org/10.1016/s0040-4020(02)01180-8
Publikováno v:
Tetrahedron. 55:10391-10412
The synthesis of the marine alkaloid hyellazole and the non-natural regioisomer isohyellazole is reported starting from the tricarbonyliron-complexed cyclohexadienylium cation and the fully functionalized arylamines by electrophilic aromatic substitu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e5ef702e073a193c13a8130d62e45e2
https://doi.org/10.1016/s0040-4020(99)00580-3
https://doi.org/10.1016/s0040-4020(99)00580-3
Publikováno v:
Tetrahedron Letters. 36:5339-5342
The marine alkaloid hyellazole has been synthesized in a convergent manner from the tricarbonyliron-complexed cyclohexadienylium cation and a fully functionalized arylamine by an electrophilic aromatic substitution and subsequent oxidative cyclizatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eaa4cac2386e0bea084674ba2b4faec9
https://doi.org/10.1016/0040-4039(95)01026-e
https://doi.org/10.1016/0040-4039(95)01026-e
Publikováno v:
ChemInform. 26
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8cd6c62912cdf8f3e57c488e924bc386
https://doi.org/10.1002/chin.199544242
https://doi.org/10.1002/chin.199544242
Publikováno v:
ChemInform. 30
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ed09f0699eeb7742b61ea4e1406b65d
https://doi.org/10.1002/chin.199950218
https://doi.org/10.1002/chin.199950218
Autor:
Thomas Hopfmann, Hans-Joachim Knölker
Publikováno v:
Synlett. 1995:981-983
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9220b996f07b826d62cc5c3543bfb19
https://doi.org/10.1055/s-1995-5121
https://doi.org/10.1055/s-1995-5121
Autor:
Konstanze K. Gruner, Kazuhiro Matsumoto, Thomas Hopfmann, Hans-Joachim Knölker, Tsutomu Katsuki, Anne Jäger
Publikováno v:
Organic & Biomolecular Chemistry. 9:2057
Iron-mediated oxidative cyclisation provides an efficient approach to pyrano[3,2-a]carbazole alkaloids. Thus, improved routes to girinimbine and murrayacine as well as the first total syntheses of O-methylmurrayamine A and 7-methoxymurrayacine are re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93bbc1db5522965b2178b3e58cd201b4
https://doi.org/10.1039/c0ob01088j
https://doi.org/10.1039/c0ob01088j