1
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Alcock E, Mackey P, Turlik A, Bhatt K, Light ME, Houk KN, McGlacken GP. The Aldol-Tishchenko Reaction of Butanone, Cyclobutanone and a 3-Pentanone Derived Sulfinylimine and DFT Calculations of the Stereo-determining Step. Chemistry 2023; 29:e202203029. [PMID: 36617506 DOI: 10.1002/chem.202203029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/12/2022] [Accepted: 12/20/2022] [Indexed: 01/10/2023]
Abstract
Herein, we present a highly diastereoselective method to furnish acyclic 3-amino-1,5-diol derivatives using a tandem double-aldol-Tishchenko protocol (dr up to >99 : 1) using a butanone derived sulfinylimine. In most cases only 1 diastereomer predominates, from a possible 16. The reaction is also regioselective. In addition, the highly challenging cyclobutanone and 3-pentanone derivatives are also amenable to a double-aldol-Tishchenko reaction, although the dr values are modest. Despite that, clean single diastereomers can be isolated, which should prove very useful in medicinal chemistry and other areas. Detailed DFT calculations support the observed stereoselectivities in all cases, providing a rationale for the excellent dr values in the butanone series and the moderate values for the 3-pentanone class.
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Affiliation(s)
- Emma Alcock
- School of Chemistry and Analytical and Biological Research Facility, University College Cork, T12 YN60, Cork, Ireland
| | - Pamela Mackey
- School of Chemistry and Analytical and Biological Research Facility, University College Cork, T12 YN60, Cork, Ireland
| | - Aneta Turlik
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California, 90095-1596, USA
| | - Khushi Bhatt
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California, 90095-1596, USA
| | - Mark E Light
- University of Southampton, Chemistry Department University Road, Southampton, SO17 1BJ, UK
| | - Kendall N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California, 90095-1596, USA
| | - Gerard P McGlacken
- School of Chemistry and Analytical and Biological Research Facility, University College Cork, T12 YN60, Cork, Ireland
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2
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O
2
‐Assisted Four‐Component Reaction of Vinyl Magnesium Bromide with Chiral
N
‐
tert
‐Butanesulfinyl Imines To Form
syn
‐1,3‐Amino Alcohols. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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3
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Wang R, Luo J, Zheng C, Zhang H, Gao L, Song Z. O 2 -Assisted Four-Component Reaction of Vinyl Magnesium Bromide with Chiral N-tert-Butanesulfinyl Imines To Form syn-1,3-Amino Alcohols. Angew Chem Int Ed Engl 2021; 60:24644-24649. [PMID: 34523225 DOI: 10.1002/anie.202109566] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Indexed: 11/10/2022]
Abstract
An O2 -assisted, four-component reaction has been developed to synthesize a wide range of syn-1,3-amino alcohols in one step. The reaction proceeds by oxygenation of vinyl magnesium bromide (component-I) with O2 (component-II) to give a magnesium enolate of acetaldehyde, which undergoes addition to a chiral N-tert-butanesulfinyl imine (component-III) followed by a sequential addition with excess vinyl magnesium bromide (component-IV). The approach allows diastereoselective synthesis of anti/syn- and syn/syn-3-amino-1,5-diols in good yields with high diastereoselectivity. The method was illustrated in an efficient, four-step synthesis of piperidine alkaloid (-)-2'-epi-ethylnorlobelol.
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Affiliation(s)
- Runping Wang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Jingfan Luo
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Chunmei Zheng
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Hongyun Zhang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Lu Gao
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Zhenlei Song
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
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4
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Palchykov VA, Gaponov AA. 1,3-Amino alcohols and their phenol analogs in heterocyclization reactions. ADVANCES IN HETEROCYCLIC CHEMISTRY 2020. [DOI: 10.1016/bs.aihch.2019.06.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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5
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Abstract
Asymmetric synthesis of γ-amino alcohols from unprotected allylic alcohols by a copper-catalyzed hydroamination strategy has been developed. Using easily accessible starting materials, a range of chiral 1,3-amino alcohols were prepared with excellent regio- and enantioselectivity. Further, this protocol provided an efficient one-step method for the enantioselective synthesis of γ-amino alcohols in an intermolecular manner.
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Affiliation(s)
- Saki Ichikawa
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, United States
| | - Stephen L. Buchwald
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, United States
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6
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Major MM, Rövid G, Balogh S, Bényei A, Lendvay G, Frigyes D, Bakos J, Farkas G. Double stereoselective coordination of chiral N,S ligands: Synthesis, coordination chemistry and utilization in Pd-catalyzed allylic alkylation. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4726] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Máté Miklós Major
- Department of Organic Chemistry; University of Pannonia; Egyetem u. 10 H-8200 Veszprém Hungary
| | - Gergő Rövid
- Department of Organic Chemistry; University of Pannonia; Egyetem u. 10 H-8200 Veszprém Hungary
| | - Szabolcs Balogh
- NMR Laboratory; University of Pannonia; Egyetem u. 10 H-8200 Veszprém Hungary
| | - Attila Bényei
- Department of Pharmaceutical Chemistry; University of Debrecen; Egyetem tér 1 H-4032 Debrecen Hungary
| | - György Lendvay
- Institute of Materials and Environmental Chemistry; Hungarian Academy of Sciences; Magyar tudósok krt. 2 H-1117 Budapest Hungary
- Department of General and Inorganic Chemistry; University of Pannonia; Egyetem u. 10 H-8200 Veszprém Hungary
| | - Dávid Frigyes
- Laboratory of Drug Substance Analytical Development 1; Egis Pharmaceuticals PLC; H-1106 Budapest Keresztúri út 30-38 Hungary
| | - József Bakos
- Department of Organic Chemistry; University of Pannonia; Egyetem u. 10 H-8200 Veszprém Hungary
| | - Gergely Farkas
- Department of Organic Chemistry; University of Pannonia; Egyetem u. 10 H-8200 Veszprém Hungary
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7
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Zhang YQ, Bohle F, Bleith R, Schnakenburg G, Grimme S, Gansäuer A. Synthesis of 1,3-Amino Alcohols by Hydroxy-Directed Aziridination and Aziridine Hydrosilylation. Angew Chem Int Ed Engl 2018; 57:13528-13532. [DOI: 10.1002/anie.201808034] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Indexed: 01/11/2023]
Affiliation(s)
- Yong-Qiang Zhang
- Kekulé-Institut für Organische Chemie und Biochemie; Universität Bonn; Gerhard-Domagk-Strasse 1 53121 Bonn Germany
| | - Fabian Bohle
- Mulliken Center for Theoretical Chemistry; Institut für Physikalische Chemie und Theoretische Chemie; Universität Bonn; Beringstrasse 4 53115 Bonn Germany
| | - Robin Bleith
- Kekulé-Institut für Organische Chemie und Biochemie; Universität Bonn; Gerhard-Domagk-Strasse 1 53121 Bonn Germany
| | - Gregor Schnakenburg
- Institut für Anorganische Chemie; Universität Bonn; Gerhard-Domagk-Strasse 1 53121 Bonn Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry; Institut für Physikalische Chemie und Theoretische Chemie; Universität Bonn; Beringstrasse 4 53115 Bonn Germany
| | - Andreas Gansäuer
- Kekulé-Institut für Organische Chemie und Biochemie; Universität Bonn; Gerhard-Domagk-Strasse 1 53121 Bonn Germany
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8
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Zhang YQ, Bohle F, Bleith R, Schnakenburg G, Grimme S, Gansäuer A. Synthesis of 1,3-Amino Alcohols by Hydroxy-Directed Aziridination and Aziridine Hydrosilylation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yong-Qiang Zhang
- Kekulé-Institut für Organische Chemie und Biochemie; Universität Bonn; Gerhard-Domagk-Strasse 1 53121 Bonn Germany
| | - Fabian Bohle
- Mulliken Center for Theoretical Chemistry; Institut für Physikalische Chemie und Theoretische Chemie; Universität Bonn; Beringstrasse 4 53115 Bonn Germany
| | - Robin Bleith
- Kekulé-Institut für Organische Chemie und Biochemie; Universität Bonn; Gerhard-Domagk-Strasse 1 53121 Bonn Germany
| | - Gregor Schnakenburg
- Institut für Anorganische Chemie; Universität Bonn; Gerhard-Domagk-Strasse 1 53121 Bonn Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry; Institut für Physikalische Chemie und Theoretische Chemie; Universität Bonn; Beringstrasse 4 53115 Bonn Germany
| | - Andreas Gansäuer
- Kekulé-Institut für Organische Chemie und Biochemie; Universität Bonn; Gerhard-Domagk-Strasse 1 53121 Bonn Germany
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9
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Tanaka S, Gunasekar R, Tanaka T, Iyoda Y, Suzuki Y, Kitamura M. Modular Construction of Protected 1,2/1,3-Diols, -Amino Alcohols, and -Diamines via Catalytic Asymmetric Dehydrative Allylation: An Application to Synthesis of Sphingosine. J Org Chem 2017; 82:9160-9170. [DOI: 10.1021/acs.joc.7b01181] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shinji Tanaka
- Graduate School of Pharmaceutical
Sciences, Research Center for Materials Science, and Graduate School
of Science, Nagoya University Chikusa, Nagoya 464-8601, Japan
| | - Ramachandran Gunasekar
- Graduate School of Pharmaceutical
Sciences, Research Center for Materials Science, and Graduate School
of Science, Nagoya University Chikusa, Nagoya 464-8601, Japan
| | - Tatsuya Tanaka
- Graduate School of Pharmaceutical
Sciences, Research Center for Materials Science, and Graduate School
of Science, Nagoya University Chikusa, Nagoya 464-8601, Japan
| | - Yoko Iyoda
- Graduate School of Pharmaceutical
Sciences, Research Center for Materials Science, and Graduate School
of Science, Nagoya University Chikusa, Nagoya 464-8601, Japan
| | - Yusuke Suzuki
- Graduate School of Pharmaceutical
Sciences, Research Center for Materials Science, and Graduate School
of Science, Nagoya University Chikusa, Nagoya 464-8601, Japan
| | - Masato Kitamura
- Graduate School of Pharmaceutical
Sciences, Research Center for Materials Science, and Graduate School
of Science, Nagoya University Chikusa, Nagoya 464-8601, Japan
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10
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Orcel U, Waser J. In situ tether formation from amines and alcohols enabling highly selective Tsuji-Trost allylation and olefin functionalization. Chem Sci 2017; 8:32-39. [PMID: 28451147 PMCID: PMC5304619 DOI: 10.1039/c6sc04366f] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 11/02/2016] [Indexed: 01/01/2023] Open
Abstract
The use of tethers allows to overcome reactivity and selectivity issues often encountered with intermolecular reactions. Although tethers have been successfully applied for decades, their installation and removal usually requires additional steps. This minireview highlights the recent development of tethers that can be installed in situ on (homo)-allyl amines or alcohols for Tsuji-Trost allylation or double bond functionalization. In particular, the use of (hemi-)acetal tethers for highly regioselective and enantioselective Tsuji-Trost allylation was recently reported. Hydroamination of olefins starting from allylic amines could be achieved via a retro Cope-elimination using catalytic amount of an aldehyde for tether formation. Finally, bifunctionalizations of olefins were developed using either carbon dioxide or carbonyls/imines as tether precursors. These recent breakthroughs greatly enhanced the efficiency of the tethering approach for olefin functionalization, and will make it even more attractive for synthetic chemists in the future.
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Affiliation(s)
- Ugo Orcel
- Laboratory of Catalysis and Organic Synthesis , Ecole Polytechnique Fédérale de Lausanne , EPFL SB ISIC LCSO , BCH 4306 , 1015 Lausanne , Switzerland .
| | - Jérôme Waser
- Laboratory of Catalysis and Organic Synthesis , Ecole Polytechnique Fédérale de Lausanne , EPFL SB ISIC LCSO , BCH 4306 , 1015 Lausanne , Switzerland .
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11
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Cai SH, Da BC, Zhou JH, Xu YH, Loh TP. Stereoselective Synthesis ofcis-2,5-Disubstituted Pyrrolidines via Copper-Catalyzed Cyclization of Alkenes. CHINESE J CHEM 2016. [DOI: 10.1002/cjoc.201600380] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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Bretzke S, Scheeff S, Vollmeyer F, Eberhagen F, Rominger F, Menche D. Modular synthesis of the pyrimidine core of the manzacidins by divergent Tsuji-Trost coupling. Beilstein J Org Chem 2016; 12:1111-21. [PMID: 27340499 PMCID: PMC4902044 DOI: 10.3762/bjoc.12.107] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 05/13/2016] [Indexed: 12/20/2022] Open
Abstract
The design, development and application of an efficient procedure for the concise synthesis of the 1,3-syn- and anti-tetrahydropyrimidine cores of manzacidins are reported. The intramolecular allylic substitution reaction of a readily available joint urea-type substrate enables the facile preparation of both diastereomers in high yields. The practical application of this approach is demonstrated in the efficient and modular preparation of the authentic heterocyclic cores of manzacidins, structurally unique bromopyrrole alkaloids of marine origin. Additional features of this route include the stereoselective generation of the central amine core with an appending quaternary center by an asymmetric addition of a Grignard reagent to a chiral tert-butanesulfinyl ketimine following an optimized Ellman protocol and a cross-metathesis of a challenging homoallylic urea substrate, which proceeds in good yields in the presence of an organic phosphoric acid.
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Affiliation(s)
- Sebastian Bretzke
- Institut für Organische Chemie, Ruprecht-Karls Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Stephan Scheeff
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
| | - Felicitas Vollmeyer
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
| | - Friederike Eberhagen
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
| | - Frank Rominger
- Institut für Organische Chemie, Ruprecht-Karls Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Dirk Menche
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
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13
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2014. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.09.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Duarte FJS, Poli G, Calhorda MJ. Mechanistic Study of the Direct Intramolecular Allylic Amination Reaction Catalyzed by Palladium(II). ACS Catal 2016. [DOI: 10.1021/acscatal.5b02091] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Filipe J. S. Duarte
- Centro
de Quı́mica e Bioquı́mica, DQB, Faculdade
de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Giovanni Poli
- Sorbonne Universités, UPMC Univ Paris 06,
Institut Parisien de Chimie Moléculaire, UMR CNRS 8232, Case
229, FR2769 Institut de Chimie Moléculaire, 4 place Jussieu, 75252 Paris Cedex 05, France
| | - Maria José Calhorda
- Centro
de Quı́mica e Bioquı́mica, DQB, Faculdade
de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
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15
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Goodwin JA, Ballesteros CF, Aponick A. Diastereoselective Synthesis of Protected 1,3-Diols by Catalytic Diol Relocation. Org Lett 2015; 17:5574-7. [DOI: 10.1021/acs.orglett.5b02725] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Justin A. Goodwin
- Department of Chemistry,
Center for Heterocyclic Compounds, University of Florida, Gainesville, Florida 32611, United States
| | - Carl F. Ballesteros
- Department of Chemistry,
Center for Heterocyclic Compounds, University of Florida, Gainesville, Florida 32611, United States
| | - Aaron Aponick
- Department of Chemistry,
Center for Heterocyclic Compounds, University of Florida, Gainesville, Florida 32611, United States
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16
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Foley VM, McSweeney CM, Eccles KS, Lawrence SE, McGlacken GP. Asymmetric Aldol-Tishchenko Reaction of Sulfinimines. Org Lett 2015; 17:5642-5. [PMID: 26528888 DOI: 10.1021/acs.orglett.5b02919] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Methods for the preparation of 1,3-amino alcohols and their derivatives containing two stereogenic centers usually involve a two-step installation of the chiral centers. An aldol-Tishchenko reaction of chiral sulfinimines which involves the first reported reduction of a C═N in this type of reaction is described. Two and even three chiral centers can be installed in one synthetic step, affording anti-1,3-amino alcohols in good diastereo- and enantioselectivity.
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Affiliation(s)
- Vera M Foley
- Analytical and Biological Chemistry Research Facility and Department of Chemistry, University College Cork , Cork 021, Ireland
| | - Christina M McSweeney
- Analytical and Biological Chemistry Research Facility and Department of Chemistry, University College Cork , Cork 021, Ireland
| | - Kevin S Eccles
- Analytical and Biological Chemistry Research Facility and Department of Chemistry, University College Cork , Cork 021, Ireland
| | - Simon E Lawrence
- Analytical and Biological Chemistry Research Facility and Department of Chemistry, University College Cork , Cork 021, Ireland
| | - Gerard P McGlacken
- Analytical and Biological Chemistry Research Facility and Department of Chemistry, University College Cork , Cork 021, Ireland
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17
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Wong VHL, White AJP, Hor TSA, Hii KKM. Ligand Effect and Control ofE- andZ-Selectivity in the Silver-Catalyzed Synthesis of 4-Bromooxazolines. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500157] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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18
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Chacko S, Kalita M, Ramapanicker R. Chelation controlled reduction of N-protected β-amino ketones toward the synthesis of HPA-12 and analogues. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.04.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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19
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Zanardi MM, Suárez AG. Synthesis of new chiral 1,3-aminoalcohols derived from levoglucosenone and their application in asymmetric alkylations. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.04.051] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Xiao ZF, Yao CZ, Kang YB. Ruthenium-Catalyzed Asymmetric N-Demethylative Rearrangement of Isoxazolidines and Its Application in the Asymmetric Total Syntheses of (−)-(1R,3S)-HPA-12 and (+)-(1S,3R)-HPA-12. Org Lett 2014; 16:6512-4. [DOI: 10.1021/ol503261h] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Zu-Feng Xiao
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Chuan-Zhi Yao
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yan-Biao Kang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
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21
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Yao CZ, Xiao ZF, Ning XS, Liu J, Zhang XW, Kang YB. Synthesis of syn-1,3-Aminoalcohols via a Ru-Catalyzed N-Demethylative Rearrangement of Isoxazolidines and Its Application in a Three-Step Total Synthesis of HPA-12. Org Lett 2014; 16:5824-6. [DOI: 10.1021/ol502956j] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Chuan-Zhi Yao
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zu-Feng Xiao
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiao-Shan Ning
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jie Liu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiao-Wei Zhang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yan-Biao Kang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
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22
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Zhu R, Yu K, Gu Z. N-Bromoacetamide-mediated domino cyclization and elimination of homoallylic trichloroacetimidates: a novel approach toward the synthesis of 1-bromo-2-amino-3-butene derivatives. Org Biomol Chem 2014; 12:6653-60. [PMID: 25029658 DOI: 10.1039/c4ob01126k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A practical synthesis of 1-bromo-2-amino-3-butene derivatives from homoallylic trichloroacetimidates was reported. Simply heating the mixture of substrates and N-bromoacetamide in DMF at 90 °C would give the desired products in moderate to excellent yields. The reaction may proceed through a domino bromo-cyclization and elimination pathway. The synthesis of 4,5-dihydrooxazoles from 1-bromo-2-amino-3-butene derivatives was also investigated.
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Affiliation(s)
- Rui Zhu
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China.
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23
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Kitanosono T, Xu P, Isshiki S, Zhu L, Kobayashi S. Cu(ii)-Catalyzed asymmetric boron conjugate addition to α,β-unsaturated imines in water. Chem Commun (Camb) 2014; 50:9336-9. [DOI: 10.1039/c4cc04062g] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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