1
|
Ullrich P, Schlamkow MA, Choi C, Kerkenpaß H, Henßen B, Pietruszka J. Enantioselective Allylation of Cyclic and
In Situ
Formed
N
‐Unsubstituted Imines with Tetraol‐Protected Allylboronates. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Patrick Ullrich
- Institut für Bioorganische Chemie (IBOC) Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich, and Bioeconomy Science Center (BioSC) Geb. 15.8 52426 Jülich Germany
| | - Max A. Schlamkow
- Institut für Bio- und Geowissenschaften (IBG-1: Bioorganische Chemie) Forschungszentrum Jülich 52428 Jülich Germany
| | - Ching‐Yi Choi
- Institut für Bioorganische Chemie (IBOC) Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich, and Bioeconomy Science Center (BioSC) Geb. 15.8 52426 Jülich Germany
| | - Hannah Kerkenpaß
- Institut für Bio- und Geowissenschaften (IBG-1: Bioorganische Chemie) Forschungszentrum Jülich 52428 Jülich Germany
| | - Birgit Henßen
- Institut für Bioorganische Chemie (IBOC) Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich, and Bioeconomy Science Center (BioSC) Geb. 15.8 52426 Jülich Germany
- Institut für Bio- und Geowissenschaften (IBG-1: Bioorganische Chemie) Forschungszentrum Jülich 52428 Jülich Germany
| | - Jörg Pietruszka
- Institut für Bioorganische Chemie (IBOC) Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich, and Bioeconomy Science Center (BioSC) Geb. 15.8 52426 Jülich Germany
- Institut für Bio- und Geowissenschaften (IBG-1: Bioorganische Chemie) Forschungszentrum Jülich 52428 Jülich Germany
| |
Collapse
|
2
|
Ullrich P, Schmauck J, Brauns M, Mantel M, Breugst M, Pietruszka J. Enantioselective Allylation of Indoles: A Surprising Diastereoselectivity. J Org Chem 2020; 85:1894-1905. [PMID: 31905290 DOI: 10.1021/acs.joc.9b02573] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Herein we show a novel approach toward the allylation of indoles. Thereby, we explore a class of bench-stable allylboronates and fine-tune their reactivity. The allylations of different substituted indoles proceed with negligible diastereo- and excellent enantioselectivities. This surprising selectivity (up to 99:1 er, up to ≈60:40 dr) is rationalized by DFT calculations.
Collapse
Affiliation(s)
- Patrick Ullrich
- Institut für Bioorganische Chemie (IBOC) , Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich , Stetternicher Forst, Geb. 15.8, 52426 Jülich , Germany
| | - Julie Schmauck
- Department für Chemie , Universität zu Köln , Greinstraße 4 , 50939 Köln , Germany
| | - Marcus Brauns
- Institut für Bioorganische Chemie (IBOC) , Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich , Stetternicher Forst, Geb. 15.8, 52426 Jülich , Germany
| | - Marvin Mantel
- Institut für Bioorganische Chemie (IBOC) , Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich , Stetternicher Forst, Geb. 15.8, 52426 Jülich , Germany
| | - Martin Breugst
- Department für Chemie , Universität zu Köln , Greinstraße 4 , 50939 Köln , Germany
| | - Jörg Pietruszka
- Institut für Bioorganische Chemie (IBOC) , Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich , Stetternicher Forst, Geb. 15.8, 52426 Jülich , Germany.,Institut für Bio- und Geowissenschaften (IBG-1: Bioorganische Chemie) , Forschungszentrum Jülich , 52428 Jülich , Germany
| |
Collapse
|
3
|
Huang Q, Michalland J, Zard SZ. Alternating Radical Stabilities: A Convergent Route to Terminal and Internal Boronates. Angew Chem Int Ed Engl 2019; 58:16936-16942. [DOI: 10.1002/anie.201906497] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Qi Huang
- Laboratoire de Synthèse Organique, CNRS UMR 7652Ecole polytechnique Route de Saclay 91128 Palaiseau Cedex France
| | - Jean Michalland
- Laboratoire de Synthèse Organique, CNRS UMR 7652Ecole polytechnique Route de Saclay 91128 Palaiseau Cedex France
| | - Samir Z. Zard
- Laboratoire de Synthèse Organique, CNRS UMR 7652Ecole polytechnique Route de Saclay 91128 Palaiseau Cedex France
| |
Collapse
|
4
|
Huang Q, Michalland J, Zard SZ. Alternating Radical Stabilities: A Convergent Route to Terminal and Internal Boronates. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906497] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Qi Huang
- Laboratoire de Synthèse Organique, CNRS UMR 7652Ecole polytechnique Route de Saclay 91128 Palaiseau Cedex France
| | - Jean Michalland
- Laboratoire de Synthèse Organique, CNRS UMR 7652Ecole polytechnique Route de Saclay 91128 Palaiseau Cedex France
| | - Samir Z. Zard
- Laboratoire de Synthèse Organique, CNRS UMR 7652Ecole polytechnique Route de Saclay 91128 Palaiseau Cedex France
| |
Collapse
|
5
|
Villar L, Orlov NV, Kondratyev NS, Uria U, Vicario JL, Malkov AV. Kinetic Resolution of Secondary Allyl Boronates and Their Application in the Synthesis of Homoallylic Amines. Chemistry 2018; 24:16262-16265. [PMID: 30175420 DOI: 10.1002/chem.201804395] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Indexed: 12/15/2022]
Abstract
Highly enantioenriched, chromatographically-stable secondary allyl boronates featuring a 1,1,2,2-tetraethyl-1,2-ethanediol fragment (Epin) were obtained by kinetic resolution of their racemic mixtures. The Epin group at boron considerably improved stability of allyl boronates allowing them to be readily isolated by chromatography on silica. The resolved reagents were applied in stereoselective synthesis of homoallylic amines with an internal double bond employing unprotected imines formed in situ from aldehydes and ammonia. The reactions proceeded with an excellent transfer of chirality.
Collapse
Affiliation(s)
- Laura Villar
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080, Bilbao, Spain
| | - Nikolai V Orlov
- Department of Chemistry, Loughborough University, Loughborough, LE11 3TU, UK
| | | | - Uxue Uria
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080, Bilbao, Spain
| | - Jose L Vicario
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080, Bilbao, Spain
| | - Andrei V Malkov
- Department of Chemistry, Loughborough University, Loughborough, LE11 3TU, UK
| |
Collapse
|
6
|
Brauns M, Mantel M, Schmauck J, Guder M, Breugst M, Pietruszka J. Highly Enantioselective Allylation of Ketones: An Efficient Approach to All Stereoisomers of Tertiary Homoallylic Alcohols. Chemistry 2017; 23:12136-12140. [PMID: 28423201 DOI: 10.1002/chem.201701740] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Indexed: 12/15/2022]
Abstract
An optimized protecting group for allylboronates allowed the use of ketones in order to synthesize all isomers of quaternary homoallylic alcohols with high enantioselectivities. All symmetric isomers of the allylboronate were prepared in high yields and diastereoselectivities using Sn 2' reactions. The improved reactivity of the novel protecting group was verified by following the reaction kinetics with 1 H NMR spectroscopy. Mechanistic studies using DFT calculations were conducted to investigate the new findings. Thus, the stereochemical outcome and enhanced reactivity can be rationalized.
Collapse
Affiliation(s)
- Marcus Brauns
- Institut für Bioorganische Chemie der Heinrich Heine Universität im, Forschungszentrum Jülich, Stetternicher Forst, Geb. 15.8, 52426, Jülich, Germany
| | - Marvin Mantel
- Institut für Bioorganische Chemie der Heinrich Heine Universität im, Forschungszentrum Jülich, Stetternicher Forst, Geb. 15.8, 52426, Jülich, Germany
| | - Julie Schmauck
- Department für Chemie, Universität zu Köln, Greinstraße 4, 50939, Köln, Germany
| | - Marian Guder
- Institut für Bio- und Geowissenschaften (IBG-1: Biotechnologie), Forschungszentrum Jülich, 52428, Jülich, Germany
| | - Martin Breugst
- Department für Chemie, Universität zu Köln, Greinstraße 4, 50939, Köln, Germany
| | - Jörg Pietruszka
- Institut für Bioorganische Chemie der Heinrich Heine Universität im, Forschungszentrum Jülich, Stetternicher Forst, Geb. 15.8, 52426, Jülich, Germany.,Institut für Bio- und Geowissenschaften (IBG-1: Biotechnologie), Forschungszentrum Jülich, 52428, Jülich, Germany
| |
Collapse
|
7
|
Miura T, Nakahashi J, Murakami M. Enantioselective Synthesis of (E
)-δ-Boryl-Substituted anti
-Homoallylic Alcohols Using Palladium and a Chiral Phosphoric Acid. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702611] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tomoya Miura
- Department of Synthetic Chemistry and Biological Chemistry; Kyoto University; Katsura Kyoto 615-8510 Japan
| | - Junki Nakahashi
- Department of Synthetic Chemistry and Biological Chemistry; Kyoto University; Katsura Kyoto 615-8510 Japan
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry; Kyoto University; Katsura Kyoto 615-8510 Japan
| |
Collapse
|
8
|
Miura T, Nakahashi J, Murakami M. Enantioselective Synthesis of (E)-δ-Boryl-Substituted anti-Homoallylic Alcohols Using Palladium and a Chiral Phosphoric Acid. Angew Chem Int Ed Engl 2017; 56:6989-6993. [PMID: 28488388 DOI: 10.1002/anie.201702611] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Indexed: 12/12/2022]
Abstract
(E)-δ-Boryl-substituted anti-homoallylic alcohols are synthesized in a highly diastereo- and enantioselective manner from 1,1-di(boryl)alk-3-enes and aldehydes. Mechanistically, the reaction consists of 1) palladium-catalyzed double-bond transposition of the 1,1-di(boryl)alk-3-enes to 1,1-di(boryl)alk-2-enes, 2) chiral phosphoric acid catalyzed allylation of aldehydes, and 3) palladium-catalyzed geometrical isomerization from the Z to E isomer. As a result, the configurations of two chiral centers and one double bond are all controlled with high selectivity in a single reaction vessel.
Collapse
Affiliation(s)
- Tomoya Miura
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510, Japan
| | - Junki Nakahashi
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510, Japan
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510, Japan
| |
Collapse
|