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Huber T, Bauer JO. A Powerful P-N Connection: Preparative Approaches, Reactivity, and Applications of P-Stereogenic Aminophosphines. Chemistry 2023:e202303760. [PMID: 38055219 DOI: 10.1002/chem.202303760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 12/07/2023]
Abstract
For more than five decades, P-stereogenic aminophosphine chalcogenides and boranes have attracted scientific attention and are still in the focus of ongoing research. In the last years, novel transition metal-based synthesis methods have been discovered, in addition to the long-known use of chiral auxiliaries. Enantiomerically pure compounds with N-P+ -X- (X=O, S, BH3 ) motifs served as valuable reactive building blocks to provide new classes of organophosphorus derivatives, thereby preserving the stereochemical information at the phosphorus atom. Over the years, intriguing applications in organocatalysis and transition metal catalysis have been reported for some representatives. Asymmetric reductions of C=C, C=N, and C=O double bonds were feasible with selected P-stereogenic aminophosphine oxides in the presence of hydrogen transfer reagents. P-stereogenic aminophosphine boranes could be easily deprotected and used as ligands for various transition metals to enable catalytic asymmetric hydrogenations of olefins and imines. This review traces the emergence of a synthetically and catalytically powerful functional compound class with phosphorus-centered chirality in its main lines, starting from classical approaches to modern synthesis methods to current applications.
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Affiliation(s)
- Tanja Huber
- Institut für Anorganische Chemie, Fakultät für Chemie und Pharmazie, Universität Regensburg, Universitätsstraße 31, D-93053, Regensburg, Germany
| | - Jonathan O Bauer
- Institut für Anorganische Chemie, Fakultät für Chemie und Pharmazie, Universität Regensburg, Universitätsstraße 31, D-93053, Regensburg, Germany
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2
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Applications of Hantzsch Esters in Organocatalytic Enantioselective Synthesis. Catalysts 2023. [DOI: 10.3390/catal13020419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
Hantzsch esters (1,4-dihydropyridine dicarboxylates) have become, in this century, very versatile reagents for enantioselective organic transformations. They can act as hydride transfer agents to reduce, regioselectively, a variety of multiple bonds, e.g., C=C and C=N, under mild reaction conditions. They are excellent reagents for the dearomatization of heteroaromatic substances, and participate readily in cascade processes. In the last few years, they have also become useful reagents for photoredox reactions. They can participate as sacrificial electron and hydrogen donors and when 4-alkyl or 4-acyl-substituted, they can act as alkyl or acyl radical transfer agents. These last reactions may take place in the presence or absence of a photocatalyst. This review surveys the literature published in this area in the last five years.
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Enantioseparation of P-Stereogenic 1-Adamantyl Arylthiophosphonates and Their Stereospecific Transformation to 1-Adamantyl Aryl- H-phosphinates. Molecules 2023; 28:molecules28041584. [PMID: 36838571 PMCID: PMC9966292 DOI: 10.3390/molecules28041584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 01/29/2023] [Accepted: 01/30/2023] [Indexed: 02/10/2023] Open
Abstract
A focused library of 1-adamantyl arylthiophosphonates was prepared in racemic form. An enantioseparation method was developed for P-stereogenic thiophosphonates using (S)-1-phenylethylamine as the resolving agent. Under optimized conditions, three out of the five arylthiophosphonates were prepared in enantiopure form (ee > 99%). The subsequent desulfurization of optically active arylthiophosphonates gave the corresponding H-phosphinates without significant erosion of enantiomeric purity (ee = 95-98%). Hence, this reaction sequence can be considered an alternative method for the preparation of 1-adamantyl aryl-H-phopshinates. The absolute configuration of the (S)-1-adamantyl phenylphosphonothioic acid was assigned using single-crystal XRD and it allowed the confirmation that the removal of the P = S group proceeds with retention of configuration. The organocatalytic applicability of (S)-1-adamantyl phenylphosphonothioic acid was also evaluated as a P-stereogenic Brønsted acid.
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Rojo P, Molinari M, Cabré A, García‐Mateos C, Riera A, Verdaguer X. Iridium-Catalyzed Asymmetric Hydrogenation of 2,3-Diarylallyl Amines with a Threonine-Derived P-Stereogenic Ligand for the Synthesis of Tetrahydroquinolines and Tetrahydroisoquinolines. Angew Chem Int Ed Engl 2022; 61:e202204300. [PMID: 35543384 PMCID: PMC9400882 DOI: 10.1002/anie.202204300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Indexed: 11/11/2022]
Abstract
Chiral compounds containing nitrogen heteroatoms are fundamental substances for the chemical, pharmaceutical and agrochemical industries. However, the preparation of some of these interesting scaffolds is still underdeveloped. Herein we present the synthesis of a family of P-stereogenic phosphinooxazoline iridium catalysts from L-threonine methyl ester and their use in the asymmetric hydrogenation of N-Boc-2,3-diarylallyl amines, achieving very high enantioselectivity. Furthermore, the synthetic utility of the 2,3-diarylpropyl amines obtained is demonstrated by their transformation to 3-aryl-tetrahydroquinolines and 4-benzyl-tetrahydroisoquinolines, which have not yet been obtained in an enantioselective manner by direct reduction of the corresponding aromatic heterocycles. This strategy allows the preparation of these types of alkaloids with the highest enantioselectivity reported up to date.
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Affiliation(s)
- Pep Rojo
- Institute of Research in Biomedicine (IRB Barcelona)The Barcelona Institute of Science and Technology (BIST)Baldiri Reixach 1008028BarcelonaSpain
| | - Medea Molinari
- Institute of Research in Biomedicine (IRB Barcelona)The Barcelona Institute of Science and Technology (BIST)Baldiri Reixach 1008028BarcelonaSpain
| | - Albert Cabré
- Institute of Research in Biomedicine (IRB Barcelona)The Barcelona Institute of Science and Technology (BIST)Baldiri Reixach 1008028BarcelonaSpain
| | - Clara García‐Mateos
- Institute of Research in Biomedicine (IRB Barcelona)The Barcelona Institute of Science and Technology (BIST)Baldiri Reixach 1008028BarcelonaSpain
| | - Antoni Riera
- Institute of Research in Biomedicine (IRB Barcelona)The Barcelona Institute of Science and Technology (BIST)Baldiri Reixach 1008028BarcelonaSpain
- Departament de Química Inorgànica i Orgànica, Secció QuímicaOrgànica, Universitat de BarcelonaMartí i Franquès 108028BarcelonaSpain
| | - Xavier Verdaguer
- Institute of Research in Biomedicine (IRB Barcelona)The Barcelona Institute of Science and Technology (BIST)Baldiri Reixach 1008028BarcelonaSpain
- Departament de Química Inorgànica i Orgànica, Secció QuímicaOrgànica, Universitat de BarcelonaMartí i Franquès 108028BarcelonaSpain
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5
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Rojo P, Molinari M, Cabré A, García‐Mateos C, Riera A, Verdaguer X. Iridium‐Catalyzed Asymmetric Hydrogenation of 2,3‐Diarylallyl Amines with a Threonine‐Derived P‐Stereogenic Ligand for the Synthesis of Tetrahydroquinolines and Tetrahydroisoquinolines. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Pep Rojo
- Institute of Research in Biomedicine (IRB Barcelona) The Barcelona Institute of Science and Technology (BIST) Baldiri Reixach 10 08028 Barcelona Spain
| | - Medea Molinari
- Institute of Research in Biomedicine (IRB Barcelona) The Barcelona Institute of Science and Technology (BIST) Baldiri Reixach 10 08028 Barcelona Spain
| | - Albert Cabré
- Institute of Research in Biomedicine (IRB Barcelona) The Barcelona Institute of Science and Technology (BIST) Baldiri Reixach 10 08028 Barcelona Spain
| | - Clara García‐Mateos
- Institute of Research in Biomedicine (IRB Barcelona) The Barcelona Institute of Science and Technology (BIST) Baldiri Reixach 10 08028 Barcelona Spain
| | - Antoni Riera
- Institute of Research in Biomedicine (IRB Barcelona) The Barcelona Institute of Science and Technology (BIST) Baldiri Reixach 10 08028 Barcelona Spain
- Departament de Química Inorgànica i Orgànica, Secció Química Orgànica, Universitat de Barcelona Martí i Franquès 1 08028 Barcelona Spain
| | - Xavier Verdaguer
- Institute of Research in Biomedicine (IRB Barcelona) The Barcelona Institute of Science and Technology (BIST) Baldiri Reixach 10 08028 Barcelona Spain
- Departament de Química Inorgànica i Orgànica, Secció Química Orgànica, Universitat de Barcelona Martí i Franquès 1 08028 Barcelona Spain
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6
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Zhao ZB, Wang J, Zhu ZH, Chen MW, Zhou YG. Enantioselective Synthesis of 2-Functionalized Tetrahydroquinolines through Biomimetic Reduction. Org Lett 2021; 23:9112-9117. [PMID: 34766774 DOI: 10.1021/acs.orglett.1c03430] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Biomimetic asymmetric reduction of 2-functionalized quinolines has been successfully developed with the chiral and regenerable NAD(P)H model CYNAM in the presence of transfer catalyst simple achiral phosphoric acids, providing the chiral 2-functionalized tetrahydroquinolines with up to 99% ee. Using this methodology as a key step, a chiral and potent opioid analgesic containing a 1,2,3,4-tetrahydroquinoline motif was synthesized with high overall yield.
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Affiliation(s)
- Zi-Biao Zhao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Jie Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Zhou-Hao Zhu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Mu-Wang Chen
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Yong-Gui Zhou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
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Cera G, Cester Bonati F, Bazzoni M, Secchi A, Arduini A. Calix[6]arene-based Brønsted acids for molecular recognition and catalysis. Org Biomol Chem 2021; 19:1546-1554. [PMID: 33503105 DOI: 10.1039/d0ob02393k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the synthesis of a versatile trifluoromethylsulfonamide calix[6]arene derivative with Brønsted acid features which can influence both molecular recognition and catalytic application. Indeed, in low polarity media, the trifluoromethyl-containing supramolecular wheel is able to respond to the complexation with charged species as a function of its selective ion-pair recognition. In parallel, the enhanced acidity is the key to promote Michael additions of indoles to nitroalkenes under pseudo-physiological reaction conditions (H2O, 37 °C).
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Affiliation(s)
- Gianpiero Cera
- Università di Parma, Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - Federica Cester Bonati
- Università di Parma, Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - Margherita Bazzoni
- Università di Parma, Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - Andrea Secchi
- Università di Parma, Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - Arturo Arduini
- Università di Parma, Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Parco Area delle Scienze 17/A, 43124 Parma, Italy.
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Petrovic AG, Polavarapu PL, Łopusiński A, Krasowska D, Wieczorek W, Szyrej M, Błaszczyk J, Drabowicz J. Absolute Configuration and Conformation of (-)- R- t-Butylphenylphosphinoamidate: Chiroptical Spectroscopy and X-ray Analysis. J Org Chem 2020; 85:14456-14466. [PMID: 32786637 PMCID: PMC7684576 DOI: 10.1021/acs.joc.0c00756] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
![]()
The
absolute configuration and conformations of (−)-tert-butylphenylphosphinoamidate were determined using three
different chiroptical spectroscopic methods, namely vibrational circular
dichroism (VCD), electronic circular dichroism (ECD), and optical
rotatory dispersion (ORD). In each of the spectroscopic methods used,
experimental data for the (−)-enantiomer of tert-butylphenylphosphinoamidate were measured in the solution phase.
Using the concentration-dependent experimental infrared spectra, the
existence of dimers in the solution was investigated, and the monomer–dimer
equilibrium constant was determined. Concomitant quantum mechanical
predictions of the VCD, ECD, and ORD for monomeric tert-butylphenylphosphinoamidate were carried out using density functional
theory (DFT) calculations using the B3LYP functional and the 6-31G(d),
6-311G(2d,2p) and aug-cc-pVDZ basis sets. Similar predictions for
dimeric tert-butylphenylphosphinoamidate were also
obtained using the B3LYP/6-31G(d) method. A comparison of theoretically
predicted data with the corresponding experimental data led to the
elucidation of the absolute configuration as (−)-(R)-tert-butylphenylphosphinoamidate with one predominant
conformation in the solution. This conclusion was independently supported
by X-ray analysis of the complex with (+)-R-2,2′-dihydroxy-1,1′-binaphthol
((+)-R- BINOL).
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Affiliation(s)
- Ana G Petrovic
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Prasad L Polavarapu
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Andrzej Łopusiński
- Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łódź, Poland
| | - Dorota Krasowska
- Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łódź, Poland
| | - Wanda Wieczorek
- Institute of General and Ecological Chemistry, Technical University of Łódź, Żeromskiego 116, 90-924 Łódź, Poland
| | - Małgorzata Szyrej
- Institute of Chemistry, Jan Długosz University in Częstochowa, Armii Krajowej 13/15, 42-200 Częstochowa, Poland
| | - Jarosław Błaszczyk
- Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łódź, Poland
| | - Józef Drabowicz
- Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łódź, Poland.,Institute of Chemistry, Jan Długosz University in Częstochowa, Armii Krajowej 13/15, 42-200 Częstochowa, Poland
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Jasiak A, Owsianik K, Gostyński B, Mielniczak G, Stevens CV, Drabowicz J. Experimental study on the microreactor-assisted synthesis of phosphinic chlorides with varying steric hindrance. Org Chem Front 2020. [DOI: 10.1039/d0qo01129k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient and catalyst-free method for the preparation of optically active and racemic mono-substituted t-butyl phosphinic chlorides tBuRP(O)Cl under flow conditions was reported.
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Affiliation(s)
- Aleksandra Jasiak
- Department of Organic Chemistry
- Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Łódź
- Poland
| | - Krzysztof Owsianik
- Department of Organic Chemistry
- Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Łódź
- Poland
| | - Bartłomiej Gostyński
- Department of Organic Chemistry
- Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Łódź
- Poland
| | - Grażyna Mielniczak
- Department of Organic Chemistry
- Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Łódź
- Poland
| | - Christian V. Stevens
- Department of Green Chemistry and Technology
- Faculty of Bioscience Engineering
- Ghent University
- 9000 Gent
- Belgium
| | - Józef Drabowicz
- Department of Organic Chemistry
- Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Łódź
- Poland
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