Výsledky vyhledávání - "Michael Schrempp"

Limit laws for the diameter of a set of random points from a distribution supported by a smoothly bounded set

Autor: Michael Schrempp

Publikováno v: Extremes. 22:167-191

We study the asymptotic behavior of the maximum interpoint distance of random points in a $d$-dimensional set with a unique diameter and a smooth boundary at the poles. Instead of investigating only a fixed number of $n$ points as $n$ tends to infini

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f5d7a99d3476fd41af6903b55f06710
https://doi.org/10.1007/s10687-018-0309-9

Zobrazit plný text záznamu

Investigations of the Copper-Catalyzed Oxidative Cross-Coupling of Tetrahydroisoquinolines with Diethylzinc by a Combination of Mass Spectrometric and Electrochemical Methods

Autor: Marianne Engeser, J. Alexander Willms, Michael Schrempp, Dirk Menche, Hermann Gleich

Publikováno v: Chemistry - A European Journal. 24:2663-2668

The aerobic oxidative cross-coupling of tetrahydroisoquinolines (THIQs) with diethylzinc catalyzed by CuCl2 has been examined by means of electrospray mass spectrometry (ESI-MS). Substrates, intermediates, and the product were readily detected. Parti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34fe344ff448c4bbb38afc7ede613831
https://doi.org/10.1002/chem.201704914

Zobrazit plný text záznamu

Plný text ve formátu HTML

Total Synthesis of Leupyrrins A1and B1, Highly Potent Antifungal Agents from the MyxobacteriumSorangium cellulosum

Autor: Maoqun Tian, Tongtong Wang, Thomas Debnar, Sebastian Thiede, Daniel Herkommer, Michael Schrempp, Dirk Menche, Paul R. Wosniok

Publikováno v: Chemistry - A European Journal. 23:3300-3320

Full details on the design, elaboration, and application of efficient strategies for the high-yielding total syntheses of leupyrrins A1 and B1 , unique antifungal agents from the myxobacterium Sorangium cellulosum, are reported. A sequential zirconoc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0be286e008d18e8a3970961d3c9184f5
https://doi.org/10.1002/chem.201604445

Zobrazit plný text záznamu

The limit distribution of the largest interpoint distance for distributions supported by ad-dimensional ellipsoid and generalizations

Autor: Michael Schrempp

Publikováno v: Advances in Applied Probability. 48:1256-1270

We study the asymptotic behaviour of the maximum interpoint distance of random points in ad-dimensional ellipsoid with a unique major axis. Instead of investigating only a fixed number ofnpoints asntends to ∞, we consider the much more general sett

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8a4e8ee1825c1350f3041ed4b0b1f8f7
https://doi.org/10.1017/apr.2016.73

Zobrazit plný text záznamu

Efficient and General Aerobic Oxidative Cross-Coupling of THIQs with Organozinc Reagents Catalyzed by CuCl2: Proof of a Radical Intermediate

Autor: Dirk Menche, Olav Schiemann, Tongtong Wang, Andreas Berndhäuser, Michael Schrempp

Publikováno v: Organic Letters. 17:3982-3985

A general new method for the highly concise synthesis of C-1-alkylated tetrahydroisoquinolines (THIQ) is reported. The CuCl2-catalyzed procedure is based on a coupling of nonfunctionalized THIQs with organozinc reagents under aerobic conditions. It p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5072214358a52d8351a74de99731f239
https://doi.org/10.1021/acs.orglett.5b01845

Zobrazit plný text záznamu

Synthesis of α-Chiral Butyrolactones by Highly Stereoselective Radical Transfer or Sequential Asymmetric Alkylations: Concise Preparation of Leupyrrin Moieties

Autor: Daniel Herkommer, Andreas Gansäuer, Dirk Menche, Sebastian Thiede, Michael Schrempp

Publikováno v: Chemistry (Weinheim an der Bergstrasse, Germany). 21(45)

Inspired by the bioactive natural metabolites leupyrrin A1 and B1 , two novel stereoselective methods for the highly concise synthesis of densely substituted α-chiral butyrolactones are reported. The first approach relies on an innovative three-step

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94312fe7b467b568eb74716d5176ce26
https://pubmed.ncbi.nlm.nih.gov/26354047

Zobrazit plný text záznamu

Plný text ve formátu HTML

Vyhledávací nástroje:

Upřesnit hledání