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Pd‐Catalyzed Asymmetric N‐Allylation of Amino Acid Esters with Exceptional Levels of Catalyst Control: Stereo‐Divergent Synthesis of ProM‐15 and Related Bicyclic Dipeptide Mimetics

Autor: Stephan Dohmen, Martin Reiher, Ronald Kühne, Dominik Albat, Jörg-Martin Neudörfl, Matthias Barone, Sema Akyol, Hans-Günther Schmalz

Publikováno v: Chemistry (Weinheim an Der Bergstrasse, Germany)

A general and powerful method for the stereo‐controlled Pd‐catalyzed N‐allylation of amino acid esters is reported, as a previously largely unsolved synthetic challenge. Employing a new class of tartaric acid‐derived C 2‐symmetric chiral di

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f86ced86041ba4a0efbbdfc0dc8bb76
https://doi.org/10.1002/chem.202000307

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Tandem Hydroalumination/Cu-Catalyzed Asymmetric Vinyl Metalation as a New Access to Enantioenriched Vinylcyclopropane Derivatives

Autor: Daniel S. Müller, Veronika Werner, Ilan Marek, Hans-Günther Schmalz, Sema Akyol

Publikováno v: Organic letters. 19(15)

Herein, we report the first enantio- and diastereoselective addition of stereodefined vinyl organometallic reagents to cyclopropenes. The operationally simple tandem hydroalumination and copper-catalyzed vinylmetalation allows for the unique access o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e186de86601a1bbe4f0d9c38cd11f612
https://pubmed.ncbi.nlm.nih.gov/28741951

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TARTROL-derived chiral phosphine–phosphite ligands and their performance in enantioselective Cu-catalyzed 1,4-addition reactions

Autor: Sema Akyol, Mehmet Dindaroğlu, Anthony J. Burke, Jörg-Martin Neudörfl, Hamza Simsir, Hans-Günther Schmalz

Publikováno v: Tetrahedron: Asymmetry. 24:657-662

By using (R,R,R,R)-2,3-dimethoxy-2,3-dimethyl-1,4-dioxane-5,6-bis-diphenylmethanol (TARTROL) as a chiral building block, a set of six modular phosphine–phosphite ligands (with a 1,2-phenylene backbone) were synthesized and evaluated in the Cu-catal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e096e7cbba4592d001c5ae31f783e4e6
https://doi.org/10.1016/j.tetasy.2013.04.008

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ChemInform Abstract: Synthesis of C2-Symmetric Bisphosphine Ligands from Tartaric Acid, and Their Performance in the Pd-Catalyzed Asymmetric O-Allylation of a Phenol

Autor: Mehmet Dindaroğlu, Hans-Günther Schmalz, Sema Akyol Dincer

Publikováno v: ChemInform. 46

Upon several constructed bisphosphine ligands, BPL shows highest activity in the asymmetric O-allylation and moderate enantiomeric excesses are obtained.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3ec0a4a7e69b65ea55b037f69dc845c0
https://doi.org/10.1002/chin.201508029

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