Zobrazeno 1 - 10
of 117
pro vyhledávání: '"Fenestrane"'
Publikováno v:
Organic Chemistry Frontiers. 8:5837-5846
A helically twisted ribbon-shaped nanographene 3 containing four pentagons, eighteen hexagons and four heptagons was synthesized by a cascade of classical Scholl and non-classical Scholl-type cycloheptatriene formation reactions. In the pivotal step
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d20afbcf65d946a07c0316982ffcb2af
https://doi.org/10.1039/d1qo00929j
https://doi.org/10.1039/d1qo00929j
Autor:
Paul R. Rablen, Kenneth B. Wiberg
Publikováno v:
The Journal of Organic Chemistry. 85:4981-4987
Our interest in fenestranes led us to wonder how large the change in strain energy with changes in the ring size might be. This led us to consider if satisfactory estimates of heat of formation could be easily derived from ab initio calculated energi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9012f1ea89ee831db6ba38689862f866
https://doi.org/10.1021/acs.joc.0c00187
https://doi.org/10.1021/acs.joc.0c00187
Autor:
Jing Zhang, Fu-She Han
Publikováno v:
The Journal of Organic Chemistry. 84:13890-13896
A new synthetic route for a short synthesis of (±)-leuconodines D and E was developed. The rapid construction of the diaza[5.5.6.6]fenestrane core was achieved through a sequence involving a Pd-catalyzed aerobic oxidative Heck cross-coupling reactio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83d16af0d1b2fbdd84b0bd14b28868f6
https://doi.org/10.1021/acs.joc.9b02054
https://doi.org/10.1021/acs.joc.9b02054
Publikováno v:
Angewandte Chemie International Edition. 58:6569-6573
Fenestranes, a specific class of natural products, contain four fused rings that share a central quaternary carbon atom. The fungal natural product penifulvin A (1) is a potent insecticidal sesquiterpene that features the [5.5.5.6]dioxafenestrane rin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23446d576187598befa0e3b5d685479e
https://doi.org/10.1002/anie.201813722
https://doi.org/10.1002/anie.201813722
The Scholl-type cyclodehydrogenation generating up to four cycloheptatriene rings around a fenestrindane core leads to novel, saddle-shaped polyaromatic hydrocarbon derivatives. In this article, we present the results of in-depth experimental and com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8880456b7ab1dfca68e550759773769
https://pub.uni-bielefeld.de/record/2939580
https://pub.uni-bielefeld.de/record/2939580
Publikováno v:
The Journal of organic chemistry. 84(2)
The synthesis of enantiomerically pure, configurationally stable fenestrindane-based polyaromatic compounds with saddle-like structures is reported. Seven racemic fenestrane synthetic precursors were first screened by chiral HPLC for resolvability in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7922a2a61dcb242431e12e38d42dd185
https://pubmed.ncbi.nlm.nih.gov/30550282
https://pubmed.ncbi.nlm.nih.gov/30550282
Radical Approach to the Chiral Quaternary Center in Asperaculin A: Synthesis of 9-Deoxyasperaculin A
Autor:
Dipendu Das, Tushar Kanti Chakraborty
Publikováno v:
Organic letters. 19(3)
Diastereoselective approaches toward the synthesis of a marine-derived sesquiterpenoid fungal metabolite, asperaculin A, are delineated, combining step economy and simplicity. Two distinct lactonization sequences from a common intermediate led to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::772738b8da0557be9baa2c8853e71019
https://pubmed.ncbi.nlm.nih.gov/28105814
https://pubmed.ncbi.nlm.nih.gov/28105814
Autor:
Magnus Pfaffenbach, Tanja Gaich
The rhazinilam-leuconoxine-mersicarpine triad of monoterpenoid indole alkaloids comprises a variety of diverse natural products with unprecedented structural features and intriguing biological activities. This subfamily of Aspidosperma alkaloids has
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8d7c6893c7245b94078da5c26126d39
https://doi.org/10.1016/bs.alkal.2016.07.001
https://doi.org/10.1016/bs.alkal.2016.07.001
Publikováno v:
European Journal of Organic Chemistry. 2014:53-65
The construction of the polycyclic frameworks of phenanthro-annelated all-cis-[5.5.6.6]fenestrane, cis,cis,trans,cis-[5.5.6.6]fenestrane, and a related “broken” [6.5.6]fenestrane is reported for the first time. On the basis of our established syn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7dfe7be419153b0fd5dddfcbc70ca00f
https://doi.org/10.1002/ejoc.201301382
https://doi.org/10.1002/ejoc.201301382
Publikováno v:
Tetrahedron. 69:2479-2483
cis,cis,cis,cis-[4.5.5.5]Fenestrane 11 was prepared by a novel route. The energy hypersurface of some stereoisomeric and substituted [4.5.5.5]fenestranes and -fenestrenes was explored by DFT calculations. The impact of some structural modifications,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9774d93617c0e5487b50bf0ab98a0f31
https://doi.org/10.1016/j.tet.2013.01.016
https://doi.org/10.1016/j.tet.2013.01.016