1
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Chao YH, Jamwal P, Ananda Rao G, Gurubrahamam R, Chen K. Chiral Spirophosphoric-Acid-Catalyzed Divergent Vinylogous Mannich and aza-Friedel-Crafts Reactions of 2-Methoxyfuran. Org Lett 2024; 26:4938-4944. [PMID: 38838351 DOI: 10.1021/acs.orglett.4c01458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
The first enantioselective vinylogous Mannich reaction is developed using 2-methoxyfuran under chiral spirophosphoric acid catalysis. The strategy involves 4-isoxazoline derivatives as cyclic ketimine surrogates and provides γ-butenolide scaffolds (up to 97% ee and >20:1 dr). The mechanistic investigations suggest that an in situ generated water molecule plays a crucial role in delivering γ-butenolide, while the use of molecular sieves delivers aza-Friedel-Crafts products. The synthetic utility of γ-butenolide is shown toward obtaining piperidone skeleton via a lactone-lactam rearrangement.
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Affiliation(s)
- Yi-Han Chao
- Department of Chemistry, National Taiwan Normal University, Taipei, Taiwan 11677
| | - Paru Jamwal
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, Jammu and Kashmir 181221, India
| | - Gunda Ananda Rao
- Department of Chemistry, National Taiwan Normal University, Taipei, Taiwan 11677
| | - Ramani Gurubrahamam
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, Jammu and Kashmir 181221, India
| | - Kwunmin Chen
- Department of Chemistry, National Taiwan Normal University, Taipei, Taiwan 11677
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2
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Zhang Z, Sun Y, Gong Y, Tang DL, Luo H, Zhao ZP, Zhou F, Wang X, Zhou J. Enantioselective propargylic amination and related tandem sequences to α-tertiary ethynylamines and azacycles. Nat Chem 2024; 16:521-532. [PMID: 38504025 DOI: 10.1038/s41557-024-01479-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 02/19/2024] [Indexed: 03/21/2024]
Abstract
Chiral α-tertiary amines and related azacycles are sought-after compounds for drug development. Despite progress in the catalytic asymmetric construction of aza-quaternary stereocentres, enantioselective synthesis of multifunctional α-tertiary amines remains underdeveloped. Enantioenriched α-disubstituted α-ethynylamines are attractive synthons for constructing chiral α-tertiary amines and azacycles, but methods for their catalytic enantioselective synthesis need to be expanded. Here we describe an enantioselective asymmetric Cu(I)-catalysed propargylic amination (ACPA) of simple ketone-derived propargylic carbonates to give both α-dialkylated and α-alkyl-α-aryl α-tertiary ethynylamines. Sterically confined pyridinebisoxazoline (PYBOX) ligands, with a C4 shielding group and relaying groups, play a key role in achieving excellent enantioselectivity. The syntheses of quaternary 2,5-dihydropyrroles, dihydroquinines, dihydrobenzoquinolines and dihydroquinolino[1,2-α]quinolines are reported, and the synthetic value is further demonstrated by the enantioselective catalytic total synthesis of a selective multi-target β-secretase inhibitor. Enantioselective Cu-catalysed propargylic substitutions with O- and C-centred nucleophiles are also realized, further demonstrating the potential of the PYBOX ligand.
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Affiliation(s)
- Zheng Zhang
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Ying Sun
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Yi Gong
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Da-Liang Tang
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Hui Luo
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Zhi-Peng Zhao
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Feng Zhou
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China.
| | - Xin Wang
- College of Chemistry, Sichuan University, Chengdu, China.
| | - Jian Zhou
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China.
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng, China.
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai, P. R. China.
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3
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Luo LS, Hou SM, Lu J, Zhang Q, Sha F, Wu XY. Cu-Catalyzed Direct Enantioselective Vinylogous Mannich Reaction between β,γ-Unsaturated Pyrazoleamides and Ketimines. J Org Chem 2024; 89:2582-2587. [PMID: 38284164 DOI: 10.1021/acs.joc.3c02602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
A catalytic asymmetric vinylogous Mannich-type reaction between β,γ-unsaturated amides and ketimines has been developed in excellent regio-, diastereo-, and enantioselectivities. The methodology provides an efficient approach to construct chiral homoallylic amines with a 3-amino-2-oxindole scaffold. Moreover, the transformations of the chiral products, including the removal of the pyrazole group or Boc group, the reduction of the C-C double bond, and Suzuki coupling, have been investigated.
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Affiliation(s)
- Ling-Shan Luo
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Si-Meng Hou
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Jian Lu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Qi Zhang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Feng Sha
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Xin-Yan Wu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
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4
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Zhang X, Song X, Ni Q. Organocatalytic regio- and enantioselective C1-arylation of β,γ-alkynyl-α-imino esters with pyrrolo[2,1- a]isoquinolines. Chem Commun (Camb) 2024; 60:831-834. [PMID: 38131183 DOI: 10.1039/d3cc04946a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
We herein report regio- and enantioselective arylation of β,γ-alkynyl-α-imino esters with pyrroloisoquinolines. Using chiral phosphoric acid catalysts, a wide range of novel axially chiral tetrasubstituted α-amino allenoates were accessed in good yields with excellent enantioselectivities. Notably, this transformation occurred preferentially at the sterically more hindered C1-position of pyrroloisoquinolines. The potential scalability and late-stage functionalization demonstrated the utility of the current protocol.
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Affiliation(s)
- Xuan Zhang
- College of Chemistry and Materials Science, Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Normal University, Wuhu, Anhui 241002, P. R. China.
| | - Xiaoxiao Song
- College of Chemistry and Materials Science, Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Normal University, Wuhu, Anhui 241002, P. R. China.
| | - Qijian Ni
- College of Chemistry and Materials Science, Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Normal University, Wuhu, Anhui 241002, P. R. China.
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5
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Lin Y, Zhang R, Wang D, Cernak T. Computer-aided key step generation in alkaloid total synthesis. Science 2023; 379:453-457. [PMID: 36730413 DOI: 10.1126/science.ade8459] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Efficient chemical synthesis is critical to satisfying future demands for medicines, materials, and agrochemicals. Retrosynthetic analysis of modestly complex molecules has been automated over the course of decades, but the combinatorial explosion of route possibilities has challenged computer hardware and software until only recently. Here, we explore a computational strategy that merges computer-aided synthesis planning with molecular graph editing to minimize the number of synthetic steps required to produce alkaloids. Our study culminated in an enantioselective three-step synthesis of (-)-stemoamide by leveraging high-impact key steps, which could be identified in computer-generated retrosynthesis plans using graph edit distances.
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Affiliation(s)
- Yingfu Lin
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Rui Zhang
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Di Wang
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Tim Cernak
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI 48109, USA.,Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
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6
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Lotsman KA, Rodygin KS, Skvortsova I, Kutskaya AM, Minyaev ME, Ananikov VP. Atom-economical synthesis of 1,2-bis(phosphine oxide)ethanes from calcium carbide with straightforward access to deuterium- and 13C-labeled bidentate phosphorus ligands and metal complexes. Org Chem Front 2023. [DOI: 10.1039/d2qo01652d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Straightforward access to bidentate phosphorus ligands and bis(phosphineoxide)ethanes is described based on atom-economic addition reaction. A practical approach was developed to incorporate 2H and 13C labels using easily available reagents.
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Affiliation(s)
- Kristina A. Lotsman
- Institute of Chemistry, Saint Petersburg State University, Universitetskiy pr. 26, Stary Petergof 198504, Russia
| | - Konstantin S. Rodygin
- Institute of Chemistry, Saint Petersburg State University, Universitetskiy pr. 26, Stary Petergof 198504, Russia
| | - Irina Skvortsova
- Institute of Chemistry, Saint Petersburg State University, Universitetskiy pr. 26, Stary Petergof 198504, Russia
| | - Anastasia M. Kutskaya
- Institute of Chemistry, Saint Petersburg State University, Universitetskiy pr. 26, Stary Petergof 198504, Russia
| | - Mikhail E. Minyaev
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky pr. 47, Moscow 119991, Russia
| | - Valentine P. Ananikov
- Institute of Chemistry, Saint Petersburg State University, Universitetskiy pr. 26, Stary Petergof 198504, Russia
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky pr. 47, Moscow 119991, Russia
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7
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Deng Y, Shi X, Shi G, Lu X, Luo J, Deng L. One-Step Asymmetric Construction of 1,4-Stereocenters via Tandem Mannich-Isomerization Reactions Mediated by a Dual-Functional Betaine Catalyst. JACS AU 2022; 2:2678-2685. [PMID: 36590254 PMCID: PMC9795573 DOI: 10.1021/jacsau.2c00465] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 11/07/2022] [Accepted: 11/08/2022] [Indexed: 06/17/2023]
Abstract
The construction of chiral motifs containing nonadjacent stereocenters stands out as a major challenge as they are usually constructed in separate steps utilizing different chiral catalysts. Therefore, the development of new strategies to streamline the construction of such complex motifs has become a major focus of asymmetric synthesis. We report here an unprecedented asymmetric tandem Mannich-isomerization reaction that allows the direct construction of 1,4-stereocenters in a highly stereoselective manner. This asymmetric transformation demonstrated the potential of a tandem nucleophilic addition-isomerization reaction as a broadly useful strategy for the efficient construction of 1,4-stereocenters. Notably, this tandem reaction was mediated by a single chiral betaine as a dual-functional catalyst, promoting first an enantioselective intermolecular C-C bond forming reaction and next a stereoselective intramolecular 1,3-proton transfer reaction.
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Affiliation(s)
- Yu Deng
- Key
Laboratory of Precise Synthesis of Functional Molecules of Zhejiang
Province, Department of Chemistry, School of Science, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province China
- Department
of Chemistry, Brandeis University, Waltham, Massachusetts 02454-9110, United States
| | - Xiaohuo Shi
- Key
Laboratory of Precise Synthesis of Functional Molecules of Zhejiang
Province, School of Science, Instrumentation and Service Center for
Molecular Sciences, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
| | - Guangfa Shi
- Key
Laboratory of Precise Synthesis of Functional Molecules of Zhejiang
Province, Department of Chemistry, School of Science, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province China
| | - Xingyu Lu
- Key
Laboratory of Precise Synthesis of Functional Molecules of Zhejiang
Province, School of Science, Instrumentation and Service Center for
Molecular Sciences, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
| | - Jisheng Luo
- Key
Laboratory of Precise Synthesis of Functional Molecules of Zhejiang
Province, Department of Chemistry, School of Science, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province China
| | - Li Deng
- Key
Laboratory of Precise Synthesis of Functional Molecules of Zhejiang
Province, Department of Chemistry, School of Science, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province China
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8
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Khajuria C, Sadhu MM, Unhale RA, Singh VK. Chiral phosphoric acid-catalyzed reaction between C-alkynyl imine precursor and thiol: Access to highly enantioenriched alkynyl isoindolinones with N,S-ketal framework. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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9
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You ZH, Zou S, Song YL, Song XQ. Enantioselective Synthesis of Fused Butyrolactones via Organocatalytic Formal [2 + 2 + 2] Annulation of γ-Butenolides, Methylene Indolinones, and Nitroolefins. Org Lett 2022; 24:7183-7187. [PMID: 36170457 DOI: 10.1021/acs.orglett.2c02920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An organocatalyzed asymmetric synthesis of fused butyrolactones via formal [2 + 2 + 2] annulation between γ-butenolides, methylene indolinones, and nitroolefins in a one-pot process has been established. Products containing six contiguous stereocenters could be obtained in good yields (up to 95%) with excellent enantioselectivities (up to >99% ee) catalyzed by a l-tert-leucine-derived bifunctional thiourea catalyst.
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Affiliation(s)
- Zhi-Hao You
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding 071002, China
| | - Sheng Zou
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding 071002, China
| | - Ya-Li Song
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding 071002, China
| | - Xue-Qing Song
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding 071002, China
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10
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Sheng C, Ling Z, Ahmad T, Xie F, Zhang W. Copper‐Catalyzed Regioselective [3+3] Annulations of Alkynyl Ketimines with
α
‐Cyano Ketones: the Synthesis of Polysubstituted 4
H
‐Pyran Derivatives with a CF
3
‐Containing Quaternary Center. Chemistry 2022; 28:e202200128. [DOI: 10.1002/chem.202200128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Indexed: 12/17/2022]
Affiliation(s)
- Cheng Sheng
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontier Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Zheng Ling
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontier Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Tanveer Ahmad
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontier Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Fang Xie
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontier Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontier Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
- College of Chemistry Zhengzhou University Zhengzhou 450052 China
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11
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Gu C, Tian G, Yin Q, Wu F, Li Z, Wu X. Amide phosphonium salt catalyzed enantioselective Mannich addition of isoxazole-based nucleophiles to β,γ-alkynyl-α-ketimino esters. Org Biomol Chem 2022; 20:3323-3334. [PMID: 35353110 DOI: 10.1039/d2ob00309k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An enantioselective Mannich addition of 3,5-disubstituted 4-nitroisoxazoles to β,γ-alkynyl-α-ketimino esters promoted by an amide phosphonium salt-based catalyst has been developed. N-Cbz-protected ketimino esters with various aryl substituents attached to the alkyne unit were reacted with a series of isoxazoles with different substitution patterns. Chiral tertiary propargylic amine products were obtained with moderate to good yields and enantioselectivities. TIPS- and cyclopropyl-substituted alkynyl ketimines were also examined in the current system and the desired products were obtained with moderate yields and enantioselectivities. The potential scalability and utility of the current protocol were demonstrated by carrying out a relatively larger scale reaction followed by further transformations.
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Affiliation(s)
- Congzheng Gu
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Sciences, Shanghai University, 99 Shangda Lu, Shanghai 200444, People's Republic of China.
| | - Guangzheng Tian
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Sciences, Shanghai University, 99 Shangda Lu, Shanghai 200444, People's Republic of China.
| | - Qingyu Yin
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Sciences, Shanghai University, 99 Shangda Lu, Shanghai 200444, People's Republic of China.
| | - Fan Wu
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Sciences, Shanghai University, 99 Shangda Lu, Shanghai 200444, People's Republic of China.
| | - Zhiming Li
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Sciences, Shanghai University, 99 Shangda Lu, Shanghai 200444, People's Republic of China.
| | - Xiaoyu Wu
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Sciences, Shanghai University, 99 Shangda Lu, Shanghai 200444, People's Republic of China.
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12
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Ishii D, Hirashima S, Akutsu H, Nakashima K, Matsushima Y, Sakai T, Miura T. Asymmetric Direct Vinylogous Conjugate Addition of Substituted Furanone Derivatives to (
E
)‐ and (
Z)
‐Benzoyl Acrylonitriles Using Organocatalysts. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Daiki Ishii
- School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi Hachioji Tokyo 192-0392 Japan
| | - Shin‐ichi Hirashima
- School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi Hachioji Tokyo 192-0392 Japan
| | - Hiroshi Akutsu
- School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi Hachioji Tokyo 192-0392 Japan
| | - Kosuke Nakashima
- School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi Hachioji Tokyo 192-0392 Japan
| | - Yasuyuki Matsushima
- School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi Hachioji Tokyo 192-0392 Japan
| | - Takaaki Sakai
- School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi Hachioji Tokyo 192-0392 Japan
| | - Tsuyoshi Miura
- School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi Hachioji Tokyo 192-0392 Japan
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13
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Modern Approaches to Synthetic Design of Chiral α-Tertiary Amines Based on Trifluoromethylcontaining Ketimines: A Review. THEOR EXP CHEM+ 2022. [DOI: 10.1007/s11237-022-09710-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Huang ZY, Yang H, Zhou L, Li QH, Zhao ZG. Et3N catalyzed direct α-addition cascade isomerization of deconjugated butenolides with α-ketoesters for the synthesis of α,γ-disubstituted butenolide derivatives. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Sun Z, Chen L, Qiu KX, Liu B, Li H, Yu F. Enantioselective Peroxidation of C-Alkynyl Imines Enabled by Chiral BINOL Calcium Phosphate. Chem Commun (Camb) 2022; 58:3035-3038. [DOI: 10.1039/d1cc07156d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we reported a catalytic enantioselective addition of C-alkynyl imines with hydroperoxides catalyzd by chiral BINOL calcium phosphate, affording a broad range of enantioenriched α-peroxy propargylamines in good yields (80-99%)...
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16
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Nakamura S, Matsumoto N, Kibe M, Abe K, Takehara T, Suzuki T. Enantiodivergent Reaction of Ketimines with Malononitriles Using Single Cinchona Alkaloid Sulfonamide Catalysts. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101114] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Shuichi Nakamura
- Department of Life Science and Applied Chemistry Graduate School of Engineering Nagoya Institute of Technology, Gokiso, Showa-ku Nagoya 466-8555 Japan
- Frontier Research Institute for Material Science Nagoya Institute of Technology, Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Natsuki Matsumoto
- Department of Life Science and Applied Chemistry Graduate School of Engineering Nagoya Institute of Technology, Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Masato Kibe
- Department of Life Science and Applied Chemistry Graduate School of Engineering Nagoya Institute of Technology, Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Kazuki Abe
- Department of Life Science and Applied Chemistry Graduate School of Engineering Nagoya Institute of Technology, Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Tsunayoshi Takehara
- The Institute of Scientific and Industrial Research Osaka University 8–1 Mihogaoka Ibaraki-shi Osaka 567-0047 Japan
| | - Takeyuki Suzuki
- The Institute of Scientific and Industrial Research Osaka University 8–1 Mihogaoka Ibaraki-shi Osaka 567-0047 Japan
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17
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Neetha M, Saranya PV, Philip RM, Anilkumar G. An Overview of Silver‐Catalyzed Mannich Reactions. ChemistrySelect 2021. [DOI: 10.1002/slct.202102452] [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)
- Mohan Neetha
- School of Chemical Sciences Mahatma Gandhi University, Priyadarsini Hills P O Kottayam Kerala INDIA 686560
| | - Padinjare Veetil Saranya
- School of Chemical Sciences Mahatma Gandhi University, Priyadarsini Hills P O Kottayam Kerala INDIA 686560
| | - Rose Mary Philip
- School of Chemical Sciences Mahatma Gandhi University, Priyadarsini Hills P O Kottayam Kerala INDIA 686560
| | - Gopinathan Anilkumar
- School of Chemical Sciences Mahatma Gandhi University, Priyadarsini Hills P O Kottayam Kerala INDIA 686560
- Institute for Integrated programmes and Research in Basic Sciences (IIRBS) Mahatma Gandhi University, Priyadarsini Hills P O Kottayam Kerala INDIA 686560
- Advanced Molecular Materials Research Centre (AMMRC) Mahatma Gandhi University, Priyadarsini Hills P O Kottayam Kerala INDIA 686560
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18
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Zhang CC, Chen LJ, Shen BC, Xie HD, Li W, Sun ZW. Enantioselective decarboxylative Mannich reaction of β-keto acids with C-alkynyl N-Boc N, O-acetals: access to chiral β-keto propargylamines. Org Biomol Chem 2021; 19:8607-8612. [PMID: 34569587 DOI: 10.1039/d1ob01555a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The chiral keto-substituted propargylamines are an essential class of multifunctional compounds in the field of organic and pharmaceutical synthesis and have attracted considerable attention, but the related synthetic approaches remain limited. Therefore, a concise and efficient method for the enantioselective synthesis of β-keto propargylamines via chiral phosphoric acid-catalyzed asymmetric Mannich reaction between β-keto acids and C-alkynyl N-Boc N,O-acetals as easily available C-alkynyl imine precursors has been demonstrated here, affording a broad scope of β-keto N-Boc-propargylamines in high yields (up to 97%) with generally high enantioselectivities (up to 97 : 3 er).
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Affiliation(s)
- Cong-Cong Zhang
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, China.
| | - Li-Jun Chen
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, China.
| | - Bao-Chun Shen
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, China.
| | - Hui-Ding Xie
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, China.
| | - Wei Li
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, China.
| | - Zhong-Wen Sun
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, China. .,Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan University, Kunming, 650091, China
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19
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Wu R, Lu J, Cao T, Ma J, Chen K, Zhu S. Enantioselective Rh(II)-Catalyzed Desymmetric Cycloisomerization of Diynes: Constructing Furan-Fused Dihydropiperidines with an Alkyne-Substituted Aza-Quaternary Stereocenter. J Am Chem Soc 2021; 143:14916-14925. [PMID: 34469135 DOI: 10.1021/jacs.1c07556] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Described herein is an enantioselective dirhodium(II)-catalyzed cycloisomerization of diynes achieved by the strategy of desymmetrization, which not only represents a new cycloisomerization reaction of diynes but also constitutes the first Rh(II)-catalyzed asymmetric intramolecular cycloisomerization of 1,6-diynes. This protocol provides a range of valuable furan-fused dihydropiperidine derivatives with an enantiomerically enriched alkynyl-substituted aza-quaternary stereocenter in high efficiency, complete atom economy, and excellent enantioselectivity (up to 98% ee). Besides, the highly functionalized products could be easily transformed into various synthetically useful building blocks and conjugated with a series of pharmaceutical molecules. The mechanism involving a concerted [3+2] cycloaddition/[1,2]-H shift of the Rh(II) carbenoid intermediate was elucidated by DFT calculations and mechanistic studies. More importantly, the first single crystal of alkyne-dirhodium(II) was obtained to show that a η2-coordinating activation of alkynal by dirhodium(II) was involved. Weak hydrogen bondings between the carboxylate ligands and alkynal were found, which probably made the well-defined paddlewheel-like dirhodium(II) distinctive from other metal complexes in catalyzing this transformation. Furthermore, the origin of the enantioselectivity was elucidated by a Rh2(R-PTAD)4-alkyne complex and additional calculational studies.
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Affiliation(s)
- Rui Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People's Republic of China
| | - Jiajun Lu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People's Republic of China
| | - Tongxiang Cao
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People's Republic of China
| | - Jun Ma
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People's Republic of China
| | - Kai Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China.,Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen 518055, People's Republic of China
| | - Shifa Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People's Republic of China
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20
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Cheng HL, Xie XH, Chen JZ, Wang Z, Chen JP. An in situ masking strategy enables radical monodecarboxylative C-C bond coupling of malonic acid derivatives. Chem Sci 2021; 12:11786-11792. [PMID: 34659716 PMCID: PMC8442682 DOI: 10.1039/d1sc02642a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 08/02/2021] [Indexed: 11/28/2022] Open
Abstract
The utilization of malonic acids in radical decarboxylative functionalization is still underexploited, and the few existing examples are primarily limited to bisdecarboxylative functionalization. While radical monodecarboxylative functionalization is highly desirable, it is challenging because of the difficulty in suppressing the second radical decarboxylation step. Herein, we report the successful radical monodecarboxylative C–C bond coupling of malonic acids with ethynylbenziodoxolone (EBX) reagents enabled by an in situ masking strategy, affording synthetically useful 2(3H)-furanones in satisfactory yields. The keys to the success of this transformation include (1) the dual role of a silver catalyst as a single-electron transfer catalyst to drive the radical decarboxylative alkynylation and as a Lewis acid catalyst to promote the 5-endo-dig cyclization and (2) the dual function of the alkynyl reagent as a radical trapper and as an in situ masking group. Notably, the latent carboxylate group in the furanones could be readily released, which could serve as a versatile synthetic handle for further elaborations. Thus, both carboxylic acid groups in malonic acid derivatives have been well utilized for the rapid construction of molecular complexity. An in situ masking strategy has been developed based upon the unique properties of silver catalysts to successfully achieve a radical monodecarboxylative C–C bond coupling of malonic acids with ethynylbenziodoxolone reagents.![]()
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Affiliation(s)
- He-Li Cheng
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University Nanjing 211816 China
| | - Xian-Hui Xie
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University Nanjing 211816 China
| | - Jia-Zheng Chen
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University Nanjing 211816 China
| | - Zhen Wang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University Nanjing 211816 China
| | - Jian-Ping Chen
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University Nanjing 211816 China
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21
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Ogura K, Takehara T, Suzuki T, Nakamura S. Enantioselective Vinylogous Mannich Reaction of Acyclic Vinylketene Silyl Acetals with Acyclic Ketimines. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100872] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kazuki Ogura
- Department of Life Science and Applied Chemistry Graduate School of Engineering Nagoya Institute of Technology, Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Tsunayoshi Takehara
- The Institute of Scientific and Industrial Research Osaka University 8-1 Mihogaoka Ibaraki-shi Osaka 567-0047 Japan
| | - Takeyuki Suzuki
- The Institute of Scientific and Industrial Research Osaka University 8-1 Mihogaoka Ibaraki-shi Osaka 567-0047 Japan
| | - Shuichi Nakamura
- Department of Life Science and Applied Chemistry Graduate School of Engineering Nagoya Institute of Technology, Gokiso, Showa-ku Nagoya 466-8555 Japan
- Frontier Research Institute for Material Science Nagoya Institute of Technology, Gokiso, Showa-ku Nagoya 466-8555 Japan
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22
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Ramirez NP, Pisella G, Waser J. Cu(I)-Catalyzed gem-Aminoalkynylation of Diazo Compounds: Synthesis of Fluorinated Propargylic Amines. J Org Chem 2021; 86:10928-10938. [PMID: 34260244 DOI: 10.1021/acs.joc.1c01423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The gem-aminoalkynylation of fluorinated diazo compounds catalyzed by a simple Cu(I) salt is described. This three-component reaction allows the synthesis of propargylic amines with broad functional group tolerance. Both electron-rich and electron-poor anilines can be used as nucleophiles and alkyl-, aryl-, and silyl-substituted EthynylBenziodoXoles (EBX) as electrophiles.
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Affiliation(s)
- Nieves P Ramirez
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Guillaume Pisella
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
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23
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Synthesis of alkynyl Z-ketimines and their application in amine-catalyzed asymmetric Mannich reactions and conjugate addition. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132225] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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24
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Pan Y, Wang D, Chen Y, Zhang D, Liu W, Yang X. Kinetic Resolution of α-Tertiary Propargylic Amines through Asymmetric Remote Aminations of Anilines. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02331] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yongkai Pan
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Donglei Wang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Shanghai Institute of Organic Chemistry, Shanghai 200032, China
| | - Yunrong Chen
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - DeKun Zhang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Wei Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Xiaoyu Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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25
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Xu C, Reep C, Jarvis J, Naumann B, Captain B, Takenaka N. Asymmetric Catalytic Ketimine Mannich Reactions and Related Transformations. Catalysts 2021; 11:712. [PMID: 34745653 PMCID: PMC8570560 DOI: 10.3390/catal11060712] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The catalytic enantioselective ketimine Mannich and its related reactions provide direct access to chiral building blocks bearing an α-tertiary amine stereogenic center, a ubiquitous structural motif in nature. Although ketimines are often viewed as challenging electrophiles, various approaches/strategies to circumvent or overcome the adverse properties of ketimines have been developed for these transformations. This review showcases the selected examples that highlight the benefits and utilities of various ketimines and remaining challenges associated with them in the context of Mannich, allylation, and aza-Morita-Baylis-Hillman reactions as well as their variants.
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Affiliation(s)
- Changgong Xu
- Chemistry Program, Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, 150 West University Boulevard, Melbourne, FL 32901-6975, USA
| | - Carlyn Reep
- Chemistry Program, Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, 150 West University Boulevard, Melbourne, FL 32901-6975, USA
| | - Jamielyn Jarvis
- Chemistry Program, Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, 150 West University Boulevard, Melbourne, FL 32901-6975, USA
| | - Brandon Naumann
- Chemistry Program, Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, 150 West University Boulevard, Melbourne, FL 32901-6975, USA
| | - Burjor Captain
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146-0431, USA
| | - Norito Takenaka
- Chemistry Program, Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, 150 West University Boulevard, Melbourne, FL 32901-6975, USA
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26
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Lupidi G, Palmieri A, Petrini M. Enantioselective Catalyzed Synthesis of Amino Derivatives Using Electrophilic Open‐Chain
N
‐Activated Ketimines. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100292] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Gabriele Lupidi
- School of Science and Technology, Chemistry Division Università di Camerino via S.Agostino, 1 I-62032 Camerino Italy
| | - Alessandro Palmieri
- School of Science and Technology, Chemistry Division Università di Camerino via S.Agostino, 1 I-62032 Camerino Italy
| | - Marino Petrini
- School of Science and Technology, Chemistry Division Università di Camerino via S.Agostino, 1 I-62032 Camerino Italy
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27
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Wang J, Ba D, Yang M, Cheng G, Wang L. Regioselective Synthesis of 2,4-Diaryl-6-trifluoromethylated Pyridines through Copper-Catalyzed Cyclization of CF 3-Ynones and Vinyl Azides. J Org Chem 2021; 86:6423-6432. [PMID: 33905254 DOI: 10.1021/acs.joc.1c00275] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A novel copper-catalyzed cyclization of readily available vinyl azides with CF3-ynones is steadily achieved under mild conditions to furnish the versatile 2,4-diaryl-6-trifluoromethylated pyridine products, which are of great interest in medicinal chemistry. The generation of the vinyl iminophosphorane intermediates from vinyl azides through the Staudinger-Meyer reaction ensures the subsequent 1,4-addition process with CF3-ynones in this transformation.
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Affiliation(s)
- Jixin Wang
- School of Medicine, Huaqiao University, Quanzhou 362021, P.R. China
| | - Da Ba
- College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, P.R. China
| | - Mengqi Yang
- School of Medicine, Huaqiao University, Quanzhou 362021, P.R. China
| | - Guolin Cheng
- College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, P.R. China
| | - Lianhui Wang
- School of Medicine, Huaqiao University, Quanzhou 362021, P.R. China
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28
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Shamna S, Afsina CMA, Philip RM, Anilkumar G. Recent advances and prospects in the Zn-catalysed Mannich reaction. RSC Adv 2021; 11:9098-9111. [PMID: 35423453 PMCID: PMC8695403 DOI: 10.1039/d0ra10772g] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 02/15/2021] [Indexed: 12/27/2022] Open
Abstract
Zn-catalysed reactions are ubiquitously important due to their inexpensive, generally less toxic and atom-economic nature. According to the modern criteria of sustainability, their use in a catalytic manner is a highly desirable goal, especially when using chiral ligands. Considering the relevance of well-established zinc-mediated C-C bond formation reactions, it is relatively surprising that the use of Zn as a catalyst is still underdeveloped, especially in comparison with other transition metals. The vast majority of natural molecules, including proteins, nucleic acids and most biologically active compounds, contain nitrogen. Consequently, developing new synthetic methods for the construction of nitrogenous molecules receives great attention from organic chemists. The Mannich reaction is a very basic and very useful platform for the development of several such nitrogen-containing molecules. In this review, we summarise the recent advancements in the Zn-catalysed Mannich reaction, covering the literature from 2011 to 2020.
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Affiliation(s)
- Salahudeen Shamna
- School of Chemical Sciences, Mahatma Gandhi University Priyadarsini Hills Kottayam Kerala 686560 India +91-481-273-1036
| | - C M A Afsina
- School of Chemical Sciences, Mahatma Gandhi University Priyadarsini Hills Kottayam Kerala 686560 India +91-481-273-1036
| | - Rose Mary Philip
- School of Chemical Sciences, Mahatma Gandhi University Priyadarsini Hills Kottayam Kerala 686560 India +91-481-273-1036
| | - Gopinathan Anilkumar
- School of Chemical Sciences, Mahatma Gandhi University Priyadarsini Hills Kottayam Kerala 686560 India +91-481-273-1036
- Advanced Molecular Materials Research Centre (AMMRC), Mahatma Gandhi University Priyadarsini Hills P O Kottayam Kerala 686560 India
- Institute for Integrated Programmes and Research in Basic Sciences (IIRBS), Mahatma Gandhi University Priyadarsini Hills P O Kottayam Kerala 686560 India
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29
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Geng Y, Hua Y, Jia S, Wang M. Direct Asymmetric α‐Selective Mannich Reaction of β,γ‐Unsaturated Ketones with Cyclic α‐Imino Ester: Divergent Synthesis of Cyclocanaline and Tetrahydro Pyridazinone Derivatives. Chemistry 2021; 27:5130-5135. [DOI: 10.1002/chem.202100284] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Indexed: 12/16/2022]
Affiliation(s)
- Yu‐Huan Geng
- College of Chemistry and Institute of Green Catalysis Zhengzhou University No. 100, Science Road Zhengzhou City Henan province 450000 P. R. China
| | - Yuan‐Zhao Hua
- College of Chemistry and Institute of Green Catalysis Zhengzhou University No. 100, Science Road Zhengzhou City Henan province 450000 P. R. China
| | - Shi‐Kun Jia
- College of Chemistry and Institute of Green Catalysis Zhengzhou University No. 100, Science Road Zhengzhou City Henan province 450000 P. R. China
| | - Min‐Can Wang
- College of Chemistry and Institute of Green Catalysis Zhengzhou University No. 100, Science Road Zhengzhou City Henan province 450000 P. R. China
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30
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Mg/BOX complexes as efficient catalysts for the enantioselective Michael addition of malonates to β-trifluoromethyl-α,β-unsaturated ketones and their N-tosyl imines. Tetrahedron 2021. [DOI: 10.1016/j.tet.2020.131897] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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Ishii D, Hirashima SI, Nakashima K, Akutsu H, Sakai T, Matsushima Y, Kawada M, Miura T. Asymmetric Direct Vinylogous Conjugate Addition of Substituted Furanone Derivatives to Benzoyl Acrylonitrile: Stereoselective Synthesis Toward Bicyclic γ-Lactams. Org Lett 2020; 23:480-485. [DOI: 10.1021/acs.orglett.0c04004] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Daiki Ishii
- Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Shin-ichi Hirashima
- Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Kosuke Nakashima
- Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Hiroshi Akutsu
- Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Takaaki Sakai
- Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Yasuyuki Matsushima
- Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Masahiro Kawada
- Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Tsuyoshi Miura
- Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
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32
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Trost BM, Zhu C. Zn-ProPhenol Catalyzed Enantioselective Mannich Reaction of 2 H-Azirines with Alkynyl Ketones. Org Lett 2020; 22:9683-9687. [PMID: 33269592 DOI: 10.1021/acs.orglett.0c03737] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The enantioselective Mannich reaction of 2H-azirines with alkynyl ketones is achieved under Zn-ProPhenol catalysis, delivering various aziridines with vicinal tetrasubstituted stereocenters in high yields with excellent enantioselectivities. The bimetallic Zn-ProPhenol complexes activate both the nucleophile and the electrophile in the same chiral pocket. A unique intramolecular hydrogen bond is observed in the obtained Mannich adducts, which lowers the basicity of the product's aziridine nitrogen thus favoring enantioselective control and allowing catalyst turnover.
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Affiliation(s)
- Barry M Trost
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, United States
| | - Chuanle Zhu
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, United States
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33
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Homma C, Takeshima A, Kano T, Maruoka K. Construction of chiral α- tert-amine scaffolds via amine-catalyzed asymmetric Mannich reactions of alkyl-substituted ketimines. Chem Sci 2020; 12:1445-1450. [PMID: 34163907 PMCID: PMC8179053 DOI: 10.1039/d0sc05269h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Stereoselective Mannich reactions of aldehydes with ketimines provide chiral β-amino aldehydes that bear an α-tert-amine moiety. However, the structural variation of the ketimines is limited due to the formation of inseparable E/Z isomers, low reactivity, and other synthetic difficulties. In this study, a highly diastereodivergent synthesis of hitherto difficult-to-access β-amino aldehydes that bear a chiral α-tert-amine moiety was achieved using the amine-catalyzed Mannich reactions of aldehydes with less-activated Z-ketimines that bear both alkyl and alkynyl groups.
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Affiliation(s)
- Chihiro Homma
- Department of Chemistry, Graduate School of Science, Kyoto University Sakyo Kyoto 606-8502 Japan
| | - Aika Takeshima
- Department of Chemistry, Graduate School of Science, Kyoto University Sakyo Kyoto 606-8502 Japan
| | - Taichi Kano
- Department of Chemistry, Graduate School of Science, Kyoto University Sakyo Kyoto 606-8502 Japan
| | - Keiji Maruoka
- Graduate School of Science, Graduate School of Pharmaceutical Sciences, Kyoto University Kyoto 606-8502 Japan .,School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou 510006 China
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34
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Onyeagusi CI, Malcolmson SJ. Strategies for the Catalytic Enantioselective Synthesis of α-Trifluoromethyl Amines. ACS Catal 2020; 10:12507-12536. [PMID: 34306806 DOI: 10.1021/acscatal.0c03569] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The exploitation of the α-trifluoromethylamino group as an amide surrogate in peptidomimetics and drug candidates has been on the rise. In a large number of these cases, this moiety bears stereochemistry with the stereochemical identity having important consequences on numerous molecular properties, such as the potency of the compound. Yet, the majority of stereoselective syntheses of α-CF3 amines rely on diastereoselective couplings with chiral reagents. Concurrent with the rapid expansion of fluorine into pharmaceuticals has been the development of catalytic enantioselective means of preparing α-trifluoromethyl amines. In this work, we outline the strategies that have been employed for accessing these enantioenriched amines, including normal polarity approaches and several recent developments in imine umpolung transformations.
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Affiliation(s)
- Chibueze I. Onyeagusi
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Steven J. Malcolmson
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
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35
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Muzalevskiy VM, Belyaeva KV, Trofimov BA, Nenajdenko VG. Organometal-Free Arylation and Arylation/Trifluoroacetylation of Quinolines by Their Reaction with CF 3-ynones and Base-Induced Rearrangement. J Org Chem 2020; 85:9993-10006. [PMID: 32631065 DOI: 10.1021/acs.joc.0c01277] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reaction of quinolines with CF3-ynones resulted in the formation of 1,3-oxazinoquinolines. Subsequent treatment of the reaction mixture with a base initiated deep structural transformation of primary products. Both steps proceed in very high yield. As a result, unusual rearrangement of 1,3-oxazinoquinolines to form either 2-arylquinolines or 2-aryl-3-trifluoroacetylquinolines was discovered. The decisive role of the base in the reaction direction was shown. Using these reactions, highly efficient pathways to 2-arylquinolines and 2-aryl-3-trifluoroacetylquinolines were elaborated to provide the corresponding compounds in high yields using a simple one-pot procedure. The possible mechanism of rearrangement is discussed.
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Affiliation(s)
- Vasiliy M Muzalevskiy
- Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie Gory 1, Moscow 119991 Russia
| | - Kseniya V Belyaeva
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, 1 Favorsky Street, Irkutsk 664033, Russia
| | - Boris A Trofimov
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, 1 Favorsky Street, Irkutsk 664033, Russia
| | - Valentine G Nenajdenko
- Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie Gory 1, Moscow 119991 Russia
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36
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Schneider T, Seitz B, Schiwek M, Maas G. 1-Fluoroalkyl-prop-2-yne 1-imines and 1-iminium salts as building blocks: A new synthesis of α-(trifluoromethyl)pyrroles. J Fluor Chem 2020. [DOI: 10.1016/j.jfluchem.2020.109567] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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37
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Cui J, Kumagai N, Watanabe T, Shibasaki M. Direct catalytic asymmetric and anti-selective vinylogous addition of butenolides to chromones. Chem Sci 2020; 11:7170-7176. [PMID: 34123001 PMCID: PMC8159409 DOI: 10.1039/d0sc01914c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
An anti-selective catalytic asymmetric Michael-type vinylogous addition of β,γ-butenolides to chromones was developed. The catalyst system developed herein is characterized by tuning of the steric and electronic effects using a proper Biphep-type chiral ligand to invert the diastereoselection, and improvement of the catalyst turnover by a coordinative phenolic additive. The catalytic protocol renders potentially biologically active natural product analogs accessible in good yield with moderate diastereoselectivity and high enantiomeric purity, mostly greater than 99% ee.
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Affiliation(s)
- Jin Cui
- Institute of Microbial Chemistry (BIKAKEN) Tokyo 141-0021 Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN) Tokyo 141-0021 Japan
| | - Takumi Watanabe
- Institute of Microbial Chemistry (BIKAKEN) Tokyo 141-0021 Japan
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38
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Fager DC, Morrison RJ, Hoveyda AH. Regio- and Enantioselective Synthesis of Trifluoromethyl-Substituted Homoallylic α-Tertiary NH 2 -Amines by Reactions Facilitated by a Threonine-Based Boron-Containing Catalyst. Angew Chem Int Ed Engl 2020; 59:11448-11455. [PMID: 32219997 DOI: 10.1002/anie.202001184] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/25/2020] [Indexed: 12/20/2022]
Abstract
A method for catalytic regio- and enantioselective synthesis of trifluoromethyl-substituted and aryl-, heteroaryl-, alkenyl-, and alkynyl-substituted homoallylic α-tertiary NH2 -amines is introduced. Easy-to-synthesize and robust N-silyl ketimines are converted to NH-ketimines in situ, which then react with a Z-allyl boronate. Transformations are promoted by a readily accessible l-threonine-derived aminophenol-based boryl catalyst, affording the desired products in up to 91 % yield, >98:2 α:γ selectivity, >98:2 Z:E selectivity, and >99:1 enantiomeric ratio. A commercially available aminophenol may be used, and allyl boronates, which may contain an alkyl-, a chloro-, or a bromo-substituted Z-alkene, can either be purchased or prepared by catalytic stereoretentive cross-metathesis. What is more, Z-trisubstituted allyl boronates may be used. Various chemo-, regio-, and diastereoselective transformations of the α-tertiary homoallylic NH2 -amine products highlight the utility of the approach; this includes diastereo- and regioselective epoxide formation/trichloroacetic acid cleavage to generate differentiated diol derivatives.
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Affiliation(s)
- Diana C Fager
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Ryan J Morrison
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Amir H Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
- Supramolecular Science and Engineering Institute, University of Strasbourg, CNRS, 67000, Strasbourg, France
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39
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Fager DC, Morrison RJ, Hoveyda AH. Regio‐ and Enantioselective Synthesis of Trifluoromethyl‐Substituted Homoallylic α‐Tertiary NH
2
‐Amines by Reactions Facilitated by a Threonine‐Based Boron‐Containing Catalyst. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001184] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Diana C. Fager
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Ryan J. Morrison
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Amir H. Hoveyda
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
- Supramolecular Science and Engineering Institute University of Strasbourg CNRS 67000 Strasbourg France
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40
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Wang MX, Liu J, Liu Z, Wang Y, Yang QQ, Shan W, Deng YH, Shao Z. Enantioselective synthesis of chiral α-alkynylated thiazolidones by tandem S-addition/acetalization of alkynyl imines. Org Biomol Chem 2020; 18:3117-3124. [PMID: 32253417 DOI: 10.1039/d0ob00365d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A SPINOL-derived chiral phosphoric acid catalyzed asymmetric formal [2 + 3]-annulation of in situ generated alkynyl imines and 1,4-dithiane-2,5-diol has been developed to afford enantiopure α-alkynylated thiazolidones with up to 72% yield and 98.5 : 1.5 er. This tandem annulation involved a tandem S-addition of alkynyl imines/intramolecular acetalization, followed by PDC-mediated oxidation. The α-alkynylated thiazolidones could facilely afford the corresponding chiral α-alkynylated or α-alkenylated cyclic sulfoxides via further elaboration.
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Affiliation(s)
- Mei-Xin Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Juan Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China. and Yunnan Baiyao Group CO., Ltd, Kunming, 650500, China
| | - Zhen Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Yingcheng Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Qi-Qiong Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Wenyu Shan
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Yu-Hua Deng
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Zhihui Shao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
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41
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Yi Y, Hua YZ, Lu HJ, Liu LT, Wang MC. Brønsted Base and Lewis Acid Cooperatively Catalyzed Asymmetric exo'-Selective [3 + 2] Cycloaddition of Trifluoromethylated Azomethine Ylides and Methyleneindolinones. Org Lett 2020; 22:2527-2531. [PMID: 32202432 DOI: 10.1021/acs.orglett.0c00283] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A Brønsted base and Lewis acid cooperatively catalyzed 1,3-dipolar cycloaddition is reported through chiral dinuclear zinc catalysts. An asymmetric exo'-selective [3 + 2] cycloaddition of CF3-containing N-unprotected isatin-derived azomethine ylides is realized. In the presence of 10 mol % of catalyst, azomethine ylides react efficiently with methyleneindolinones, giving a series of trifluoromethyl-substituted 2,3-pyrrolidinyl dispirooxindoles with highly enantio- (up to 99% ee) and exo'-selectivity (>20:1 dr). Up to four contiguous stereogenic centers, including two adjacent spiro quaternary stereocenters, are constructed in one step.
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Affiliation(s)
- Yang Yi
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou City, Henan Province 450000, P. R. China
| | - Yuan-Zhao Hua
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou City, Henan Province 450000, P. R. China
| | - Hui-Jie Lu
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou City, Henan Province 450000, P. R. China
| | - Lan-Tao Liu
- School of Chemistry & Chemical Engineering, Shangqiu Normal University, Shangqiu City, Henan Province 476000, P. R. China
| | - Min-Can Wang
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou City, Henan Province 450000, P. R. China
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42
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Trost BM, Hung C(J, Mata G. Zweikernige Metall‐ProPhenol‐Katalysatoren: Entwicklung und Anwendungen in der Synthese. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201909692] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Barry M. Trost
- Department of ChemistryStanford University 333 Campus Drive Stanford CA 94305 USA
| | - Chao‐I (Joey) Hung
- Department of ChemistryStanford University 333 Campus Drive Stanford CA 94305 USA
| | - Guillaume Mata
- Department of ChemistryStanford University 333 Campus Drive Stanford CA 94305 USA
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43
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Nakamura S, Matsuzaka K, Hatanaka T, Funahashi Y. Enantioselective Vinylogous Mannich Reaction of Acyclic Vinylketene Silyl Acetals with Ketimines Using Chiral Bis(imidazoline)–Cu(II) Catalysts. Org Lett 2020; 22:2868-2872. [DOI: 10.1021/acs.orglett.0c00289] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shuichi Nakamura
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
- Frontier Research Institute for Material Science, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
| | - Koichi Matsuzaka
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
| | - Tsubasa Hatanaka
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Yasuhiro Funahashi
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
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44
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Du M, Yu L, Du T, Li Z, Luo Y, Meng X, Tian Z, Zheng C, Cao W, Zhao G. N-Protecting group tuning of the enantioselectivity in Strecker reactions of trifluoromethyl ketimines to synthesize quaternary α-trifluoromethyl amino nitriles by ion pair catalysis. Chem Commun (Camb) 2020; 56:1581-1584. [PMID: 31934692 DOI: 10.1039/c9cc09151c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An enantioselective Strecker reaction to construct trifluoromethylated quaternary stereocenters with N-PMP and unexplored N-Boc trifluoromethyl ketimines catalyzed using an organophosphine dual-reagent catalyst has been developed. The enantioselectivities of the corresponding products with the same catalyst could be switched by using different N-protecting groups (N-PMP or N-Boc). The trifluoromethyl amino nitriles were obtained in high yield and high enantioselectivity in a short time and could be easily converted to a variety of useful trifluoromethyl-containing compounds.
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Affiliation(s)
- Mengyuan Du
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, P. R. China.
| | - Longhui Yu
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China.
| | - Ting Du
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China.
| | - Zhaokun Li
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China.
| | - Yueyang Luo
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China.
| | - Xiangyu Meng
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China.
| | - Zhengtao Tian
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China.
| | - Changwu Zheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Weiguo Cao
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, P. R. China.
| | - Gang Zhao
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China.
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45
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Ray Choudhury A, Mukherjee S. Deconjugated butenolide: a versatile building block for asymmetric catalysis. Chem Soc Rev 2020; 49:6755-6788. [PMID: 32785345 DOI: 10.1039/c9cs00346k] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Deconjugated butenolides have emerged as a popular synthon for the enantioselective synthesis of γ-lactones. This review provides a comprehensive overview on the catalytic asymmetric reactions of deconjugated butenolides reported till date.
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Affiliation(s)
| | - Santanu Mukherjee
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore 560 012
- India
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46
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Romaniszyn M, Sieroń L, Albrecht Ł. Asymmetric vinylogous Michael addition of 5-substituted-furan-2(3H)-ones to an α,β-unsaturated-γ-lactam. Org Biomol Chem 2020; 18:8633-8637. [DOI: 10.1039/d0ob01750g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Asymmetric vinylogous Michael addition involving an α,β-unsaturated-γ-lactam as an acceptor is described.
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Affiliation(s)
- Marta Romaniszyn
- Institute of Organic Chemistry
- Faculty of Chemistry
- Lodz University of Technology
- 90-924 Łódź
- Poland
| | - Lesław Sieroń
- Institute of General and Ecological Chemistry
- Faculty of Chemistry
- Lodz University of Technology
- 90-924 Łódź
- Poland
| | - Łukasz Albrecht
- Institute of Organic Chemistry
- Faculty of Chemistry
- Lodz University of Technology
- 90-924 Łódź
- Poland
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47
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Zimmermann S, Akbarzadeh M, Otte F, Strohmann C, Sankar MG, Ziegler S, Pahl A, Sievers S, Kumar K. A Scaffold-Diversity Synthesis of Biologically Intriguing Cyclic Sulfonamides. Chemistry 2019; 25:15498-15503. [PMID: 31518018 PMCID: PMC6916640 DOI: 10.1002/chem.201904175] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Indexed: 12/11/2022]
Abstract
A "branching-folding" synthetic strategy that affords a range of diverse cyclic benzo-sulfonamide scaffolds is presented. Whereas different annulation reactions on common ketimine substrates build the branching phase of the scaffold synthesis, a common hydrogenative ring-expansion method, facilitated by an increase of the ring-strain during the branching phase, led to sulfonamides bearing medium-sized rings in a folding pathway. Cell painting assay was successfully employed to identify tubulin targeting sulfonamides as novel mitotic inhibitors.
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Affiliation(s)
- Stefan Zimmermann
- Abteilung Chemische BiologieMax-Planck-Institut für Molekulare PhysiologieOtto-Hahn-Straße 1144227DortmundGermany
- Fakultät Chemie und Chemische BiologieTechnische Universität DortmundOtto-Hahn Str. 644227DortmundGermany
| | - Mohammad Akbarzadeh
- Abteilung Chemische BiologieMax-Planck-Institut für Molekulare PhysiologieOtto-Hahn-Straße 1144227DortmundGermany
| | - Felix Otte
- Fakultät Chemie und Chemische BiologieTechnische Universität DortmundOtto-Hahn Str. 644227DortmundGermany
| | - Carsten Strohmann
- Fakultät Chemie und Chemische BiologieTechnische Universität DortmundOtto-Hahn Str. 644227DortmundGermany
| | - Muthukumar Gomathi Sankar
- Abteilung Chemische BiologieMax-Planck-Institut für Molekulare PhysiologieOtto-Hahn-Straße 1144227DortmundGermany
| | - Slava Ziegler
- Abteilung Chemische BiologieMax-Planck-Institut für Molekulare PhysiologieOtto-Hahn-Straße 1144227DortmundGermany
| | - Axel Pahl
- Abteilung Chemische BiologieMax-Planck-Institut für Molekulare PhysiologieOtto-Hahn-Straße 1144227DortmundGermany
| | - Sonja Sievers
- Abteilung Chemische BiologieMax-Planck-Institut für Molekulare PhysiologieOtto-Hahn-Straße 1144227DortmundGermany
| | - Kamal Kumar
- Abteilung Chemische BiologieMax-Planck-Institut für Molekulare PhysiologieOtto-Hahn-Straße 1144227DortmundGermany
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48
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Trost BM, Hung C(J, Mata G. Dinuclear Metal‐ProPhenol Catalysts: Development and Synthetic Applications. Angew Chem Int Ed Engl 2019; 59:4240-4261. [DOI: 10.1002/anie.201909692] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Barry M. Trost
- Department of ChemistryStanford University 333 Campus Drive Stanford CA 94305 USA
| | - Chao‐I (Joey) Hung
- Department of ChemistryStanford University 333 Campus Drive Stanford CA 94305 USA
| | - Guillaume Mata
- Department of ChemistryStanford University 333 Campus Drive Stanford CA 94305 USA
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49
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Dai J, Wang Z, Deng Y, Zhu L, Peng F, Lan Y, Shao Z. Enantiodivergence by minimal modification of an acyclic chiral secondary aminocatalyst. Nat Commun 2019; 10:5182. [PMID: 31729388 PMCID: PMC6858435 DOI: 10.1038/s41467-019-13183-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 10/28/2019] [Indexed: 12/21/2022] Open
Abstract
The development of enantiodivergent catalysis for the preparation of both enantiomers of a chiral compound is of importance in pharmaceutical and bioorganic chemistry. With the design of a class of reactive and stereoselective organocatalysts, acyclic chiral secondary amines, a method for achieving the enantiodivergence is developed simply by changing the secondary N-i-Bu- to N-Me-group within the catalyst architecture while maintaining the same absolute configuration of the catalysts, which modulates the catalyst conformation. This catalyst-controlled enantiodivergent method not only enables challenging asymmetric transformations to occur in an enantiodivergent manner but also features a high level of stereocontrol and broad scope that is demonstrated in eight different reactions (90 examples), all delivering both enantiomers of a range of structurally diverse products including hitherto less accessible, yet important, compounds in good yields with high stereoselectivities. Enantiodivergent methods, which to access both enantiomers of the same compound, are of importance in drug synthesis. Here, the authors show that by simply changing a NiBu- to a NMe-group in readily available amine organocatalysts, high stereocontrol and broad scope are achieved in eight asymmetric reactions.
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Affiliation(s)
- Jun Dai
- Key Laboratory of Medicinal Chemistry for Natural Resource, School of Chemical Science and Technology, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, 650091, Kunming, China
| | - Zhuang Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource, School of Chemical Science and Technology, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, 650091, Kunming, China
| | - Yuhua Deng
- Key Laboratory of Medicinal Chemistry for Natural Resource, School of Chemical Science and Technology, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, 650091, Kunming, China
| | - Lei Zhu
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, 400030, Chongqing, China
| | - Fangzhi Peng
- Key Laboratory of Medicinal Chemistry for Natural Resource, School of Chemical Science and Technology, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, 650091, Kunming, China
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, 400030, Chongqing, China.
| | - Zhihui Shao
- Key Laboratory of Medicinal Chemistry for Natural Resource, School of Chemical Science and Technology, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, 650091, Kunming, China.
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50
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Chalyk BA, Khutorianskyi A, Lysenko A, Fil Y, Kuchkovska YO, Gavrilenko KS, Bakanovych I, Moroz YS, Gorlova AO, Grygorenko OO. Regioselective Synthesis of Functionalized 3- or 5-Fluoroalkyl Isoxazoles and Pyrazoles from Fluoroalkyl Ynones and Binucleophiles. J Org Chem 2019; 84:15212-15225. [PMID: 31661620 DOI: 10.1021/acs.joc.9b02258] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A facile synthetic route toward either 3- or 5-fluoroalkyl-substituted isoxazoles or pyrazoles containing an additional functionalization site was developed and applied on a multigram scale. The elaborated approach extends the scope of fluoroalkyl substituents for introduction into the heterocyclic moiety, and uses convenient transformations of the side chain for incorporation of fluoroalkyl-substituted azoles into the structures of biologically active molecules. The utility of the obtained building blocks for isosteric replacement of alkyl-substituted isoxazole and pyrazole was shown by the synthesis of fluorinated Isocarboxazid and Mepiprazole analogues.
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Affiliation(s)
- Bohdan A Chalyk
- Enamine Ltd. , Chervonotkatska Street 78 , Kyiv 02094 , Ukraine.,Institute of Organic Chemistry , National Academy of Sciences of Ukraine , Murmanska Street 5 , Kyiv 02660 , Ukraine
| | - Andrii Khutorianskyi
- Enamine Ltd. , Chervonotkatska Street 78 , Kyiv 02094 , Ukraine.,Taras Shevchenko National University of Kyiv , Volodymyrska Street 60 , Kyiv 01601 , Ukraine
| | - Andrii Lysenko
- Enamine Ltd. , Chervonotkatska Street 78 , Kyiv 02094 , Ukraine.,Taras Shevchenko National University of Kyiv , Volodymyrska Street 60 , Kyiv 01601 , Ukraine
| | - Yulia Fil
- Enamine Ltd. , Chervonotkatska Street 78 , Kyiv 02094 , Ukraine.,Taras Shevchenko National University of Kyiv , Volodymyrska Street 60 , Kyiv 01601 , Ukraine
| | - Yuliya O Kuchkovska
- Enamine Ltd. , Chervonotkatska Street 78 , Kyiv 02094 , Ukraine.,Taras Shevchenko National University of Kyiv , Volodymyrska Street 60 , Kyiv 01601 , Ukraine
| | - Konstantin S Gavrilenko
- Enamine Ltd. , Chervonotkatska Street 78 , Kyiv 02094 , Ukraine.,Taras Shevchenko National University of Kyiv , Volodymyrska Street 60 , Kyiv 01601 , Ukraine
| | - Iulia Bakanovych
- Enamine Ltd. , Chervonotkatska Street 78 , Kyiv 02094 , Ukraine.,Taras Shevchenko National University of Kyiv , Volodymyrska Street 60 , Kyiv 01601 , Ukraine
| | - Yurii S Moroz
- Taras Shevchenko National University of Kyiv , Volodymyrska Street 60 , Kyiv 01601 , Ukraine.,Chemspace , Ilukstes iela 38-5 , Riga , LV - 1082 , Latvia
| | - Alina O Gorlova
- Enamine Ltd. , Chervonotkatska Street 78 , Kyiv 02094 , Ukraine.,Institute of Organic Chemistry , National Academy of Sciences of Ukraine , Murmanska Street 5 , Kyiv 02660 , Ukraine
| | - Oleksandr O Grygorenko
- Enamine Ltd. , Chervonotkatska Street 78 , Kyiv 02094 , Ukraine.,Taras Shevchenko National University of Kyiv , Volodymyrska Street 60 , Kyiv 01601 , Ukraine
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