Zobrazeno 1 - 10 of 32 pro vyhledávání: '"Hannes F. Zipfel"'
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An Efficient Synthesis Strategy to the Core Structure of 6–5–6–5–6-Membered Epipolythiodiketopiperazines
Autor: Hannes F. Zipfel, Erick M. Carreira
Publikováno v: Organic Letters. 16:2854-2857
A concise route to the core structure 1 of 6-5-6-5-6-membered epipolythiodiketopiperazines is described. The strategy relies on construction of the pyrrolines by double nucleophilic opening of a bis(oxabicyclo[2.2.1]heptene) 2, obtained after bidirec
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1de962a3288f9120a1f319c3c008d8f0
https://doi.org/10.1021/ol500990f
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4
ChemInform Abstract: Stereodivergent Dual Catalytic α-Allylation of Protected α-Amino- and α-Hydroxyacetaldehydes
Autor: Erick M. Carreira, Simon Krautwald, Hannes F. Zipfel, Tobias Sandmeier
Publikováno v: ChemInform. 47
The iridium- and amine-catalyzed substitution of racemic allylic alcohols with in situ generated chiral enamines affords useful γ,δ-unsaturated aldehyde building blocks.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1f4bbba760236addab6a5197a8733674
https://doi.org/10.1002/chin.201614113
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5
Stereodivergent Dual Catalytic α-Allylation of Protected α-Amino- and α-Hydroxyacetaldehydes
Autor: Erick M. Carreira, Hannes F. Zipfel, Simon Krautwald, Tobias Sandmeier
Publikováno v: Angewandte Chemie (International ed. in English). 54(48)
Fully stereodivergent dual-catalytic α-allylation of protected α-amino- and α-hydroxyacetaldehydes is achieved through iridium- and amine-catalyzed substitution of racemic allylic alcohols with chiral enamines generated in situ. The operationally
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3eb04c1bd1738704d2f76d1047497ee
https://pubmed.ncbi.nlm.nih.gov/26427612
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6
A Unified Strategy to 6-5-6-5-6-Membered Epipolythiodiketopiperazines: Studies towards the Total Synthesis of Scabrosin Diacetate and Haematocin
Autor: Erick M. Carreira, Hannes F. Zipfel
Publikováno v: Chemistry (Weinheim an der Bergstrasse, Germany). 21(35)
The family of epipolythiodiketopiperazine (ETP) natural products consists of over 200 members possessing a wide diversity of structures and biological activity. Recently, the subgroup of 6-5-6-5-6-membered ETPs has gained substantial attention, which
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ccda9712555d79d7659c7c2760ea6297
https://pubmed.ncbi.nlm.nih.gov/26179159
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