1
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Takeuchi T, Shibasaki M. Copper-Catalyzed Direct Asymmetric Aldol Reaction of Glycine Schiff Bases to Access syn-β-Hydroxy-α-amino Esters. Org Lett 2024. [PMID: 39255778 DOI: 10.1021/acs.orglett.4c03085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2024]
Abstract
This study reported a copper-catalyzed direct asymmetric aldol reaction between aldehydes and glycine Schiff bases with methyl, allyl, and tert-butyl esters. Additionally, this reaction afforded high yields of syn-β-hydroxy-α-amino esters with excellent enantio- and diastereoselectivities (93-99% ee, up to >99:1 dr). The aldol reaction accepted aromatic, linear aliphatic, and α-substituted aliphatic aldehydes.
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Affiliation(s)
- Toshifumi Takeuchi
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
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2
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Mei P, Ma Z, Chen Y, Wu Y, Hao W, Fan QH, Zhang WX. Chiral bisphosphine Ph-BPE ligand: a rising star in asymmetric synthesis. Chem Soc Rev 2024; 53:6735-6778. [PMID: 38826108 DOI: 10.1039/d3cs00028a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
Chiral 1,2-bis(2,5-diphenylphospholano)ethane (Ph-BPE) is a class of optimal organic bisphosphine ligands with C2-symmetry. Ph-BPE with its excellent catalytic performance in asymmetric synthesis has attracted much attention of chemists with increasing popularity and is growing into one of the most commonly used organophosphorus ligands, especially in asymmetric catalysis. Over two hundred examples have been reported since 2012. This review presents how Ph-BPE is utilized in asymmetric synthesis and how powerful it is as a chiral ligand or even a catalyst in a wide range of reactions including applications in the total synthesis of bioactive molecules.
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Affiliation(s)
- Peifeng Mei
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory of Rare-Earth Materials Chemistry and Applications & Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Zibin Ma
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory of Rare-Earth Materials Chemistry and Applications & Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Yu Chen
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory of Rare-Earth Materials Chemistry and Applications & Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Yue Wu
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory of Rare-Earth Materials Chemistry and Applications & Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Wei Hao
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Qing-Hua Fan
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Wen-Xiong Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory of Rare-Earth Materials Chemistry and Applications & Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
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3
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Liu TT, Chen Y, Mei GJ, Hua YZ, Jia SK, Wang MC. Zinc-Catalyzed Enantioselective [3 + 3] Annulation for Synthesis of Chiral Spiro[indoline-3,4'-thiopyrano[2,3- b]indole] Derivatives. Molecules 2023; 28:molecules28031056. [PMID: 36770723 PMCID: PMC9920981 DOI: 10.3390/molecules28031056] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/12/2023] [Accepted: 01/16/2023] [Indexed: 01/24/2023] Open
Abstract
With a dinuclear zinc-ProPhenol complex as a catalyst, an efficient and novel [3 + 3] annulation of indoline-2-thiones and isatylidene malononitriles has been successfully developed via the Brønsted base and Lewis acid cooperative activation model. This practical methodology gives access to a broad range of chiral spiro[indoline-3,4'-thiopyrano[2,3-b]indole] derivatives in good yields with excellent levels of enantioselectivities (up to 88% yield and 99% ee).
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Affiliation(s)
| | | | | | | | - Shi-Kun Jia
- Correspondence: (Y.-Z.H.); (S.-K.J.); (M.-C.W.)
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4
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Wang X, Ji Z, Liu J, Wang B, Jin H, Zhang L. Advances in Organocatalytic Asymmetric Reactions Involving Thioesters. ACTA CHIMICA SINICA 2023. [DOI: 10.6023/a22100422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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5
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Watanabe T, Abe H, Shibasaki M. Catalytic Asymmetric Total Synthesis of Leucinostatin A. CHEM REC 2020; 21:175-187. [PMID: 33107684 DOI: 10.1002/tcr.202000108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/05/2020] [Indexed: 12/30/2022]
Abstract
This review describes our efforts toward achieving catalytic asymmetric total synthesis of leucinostatin A, a compound that interferes with the tumor-stroma interaction. The synthesis utilizes four catalytic asymmetric reactions, including direct-type reactions exemplified by high atom-economy, and three C-C bond forming reactions. Thorough analysis of the NMR data, HPLC profiles, and biologic activity led us to unambiguously revise the absolute configuration regarding the 6-position of the AHMOD residue side chain from S (reported) to R. Other examples of previously reported important studies on the stereoselective synthesis of HyLeu and AHMOD are also described.
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Affiliation(s)
- Takumi Watanabe
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
| | - Hikaru Abe
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo, 141-0021, Japan
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6
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Pluta R, Li Z, Kumagai N, Shibasaki M. Z-Enolate Geometry in the Thioamide Aldol Reaction Illuminated by the 7-Azaindoline Auxiliary. Org Lett 2020; 22:791-794. [PMID: 31829612 DOI: 10.1021/acs.orglett.9b04120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Z or E enolate geometry is the primary determinant of diastereoselectivity in the aldol reaction. Although amide and thioamide enolates are anticipated to have predominantly the E geometry because of the intrinsic steric demand, spectroscopic confirmation of the geometry in solution has remained elusive, particularly in the realm of highly stereoselective catalytic asymmetric aldol reactions. Herein we demonstrate that the 7-azaindoline auxiliary enables direct observation of the exclusive formation of the Z-enolate of the thioamide en route to a highly syn-selective aldol reaction.
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Affiliation(s)
- Roman Pluta
- Institute of Microbial Chemistry , 3-14-23 Kamiosaki , Shinagawa-ku , Tokyo 141-0021 , Japan
| | - Zhao Li
- Institute of Microbial Chemistry , 3-14-23 Kamiosaki , Shinagawa-ku , Tokyo 141-0021 , Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry , 3-14-23 Kamiosaki , Shinagawa-ku , Tokyo 141-0021 , Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry , 3-14-23 Kamiosaki , Shinagawa-ku , Tokyo 141-0021 , Japan
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7
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Tak RK, Noda H, Shibasaki M. Cyanomethylation of β‐Alkoxyaldehydes: Toward a Short Synthesis of Atorvastatin. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Raj Kumar Tak
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
| | - Hidetoshi Noda
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
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8
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Park JH, Sim JH, Song CE. Direct Access to β-Trifluoromethyl-β-hydroxy Thioesters by Biomimetic Organocatalytic Enantioselective Aldol Reaction. Org Lett 2019; 21:4567-4570. [PMID: 31184184 DOI: 10.1021/acs.orglett.9b01469] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A broadly applicable biomimetic enantioselective decarboxylative catalytic aldol reaction of trifluoromethyl ketones with malonic acid half-thioesters (MAHTs) is described. Utilizing cinchona-based thioureas as highly efficient polyketide synthase-mimic catalysts, chiral tertiary aldols, β-trifluoromethyl-β-hydroxy thioesters, were obtained in up to 99% yield and 95% ee. Facile transformation of the thioester moiety of the aldol adducts showcases the synthetic utility of this biomimetic aldol protocol to deliver a range of chiral trifluoromethylated tertiary aldol pharmacophores.
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Affiliation(s)
- Jin Hyun Park
- Department of Chemistry , Sungkyunkwan University , Suwon 16419 , Korea
| | - Jae Hun Sim
- Department of Chemistry , Sungkyunkwan University , Suwon 16419 , Korea
| | - Choong Eui Song
- Department of Chemistry , Sungkyunkwan University , Suwon 16419 , Korea
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9
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Watanabe T, Shibasaki M. Catalytic Asymmetric Synthesis of Natural Products Directed Toward Development of Novel Anti-infective and Anti-cancer Medicines. J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.781] [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]
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10
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Cui J, Ohtsuki A, Watanabe T, Kumagai N, Shibasaki M. Direct Catalytic Asymmetric Aldol Reaction of Thioamide with an α‐Vinyl Appendage. Chemistry 2018; 24:2598-2601. [DOI: 10.1002/chem.201800020] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Jin Cui
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki Shinagawa-ku Tokyo 141-0021 Japan
| | - Akimichi Ohtsuki
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki Shinagawa-ku Tokyo 141-0021 Japan
| | - Takumi Watanabe
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki Shinagawa-ku Tokyo 141-0021 Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki Shinagawa-ku Tokyo 141-0021 Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki Shinagawa-ku Tokyo 141-0021 Japan
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11
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Zhang SL, Deng ZQ. Synthesis of quinolines and naphthyridines via catalytic retro-aldol reaction of β-hydroxyketones with ortho-aminobenzaldehydes or nicotinaldehydes. Org Biomol Chem 2018; 14:8966-8970. [PMID: 27714212 DOI: 10.1039/c6ob01452f] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Cu(i)-catalyzed retro-aldol reaction of β-hydroxyketones with ortho-aminobenzaldehydes and nicotinaldehydes is reported that produces a range of quinolines and naphthyridines with high efficiency and selectivity. This reaction uses β-hydroxyketones as a regiospecific ketone-protected enolate source via copper-catalyzed retro-aldol Cα-Cβ bond cleavage. The in situ generated copper enolate undergoes kinetically favorable cyclization with ortho-amino aryl aldehydes to produce quinolines and naphthyridines in a chemo- and regioselective manner. The mild and weakly basic reaction conditions also suppress possible side reactions of benzaldehydes under strongly basic conditions, resulting in improved reaction yields.
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Affiliation(s)
- Song-Lin Zhang
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, China.
| | - Zhu-Qin Deng
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, China.
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12
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Álvarez-Miguel L, Barbero H, Sacristán-Martín A, Martín Álvarez JM, Pérez-Encabo A, Álvarez CM, García-Rodríguez R, Miguel D. Copper Complexes in the Promotion of Aldol Addition to Pyridine-2-carboxaldehyde: Synthesis of Homo- and Heteroleptic Complexes and Stereoselective Double Aldol Addition. Inorg Chem 2018; 57:264-276. [PMID: 29227100 DOI: 10.1021/acs.inorgchem.7b02448] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
CuCl2·2H2O and Cu(ClO4)2·6H2O are able to promote aldol addition of pyridine-2-carboxaldehyde (pyca) with acetone, acetophenone, or cyclohexenone under neutral and mild conditions. The general and simple one-pot procedure for the aldol addition to Cu(II) complexes accesses novel Cu complexes with a large variety of different structural motifs, from which the aldol-addition ligand can be liberated by treatment with NH3. Neutral heteroleptic complexes in which the ligand acts as bidentate, or homoleptic cationic complexes in which the ligand acts as tridentate can be obtained depending on the copper salt used. The key step in these reactions is the coordination of pyca to copper, which increases the electrophilic character of the aldehyde, with Cu(ClO4)2 leading to a higher degree of activation than CuCl2, as predicted by DFT calculations. A regio- and stereoselective double aldol addition of pyca in the reaction of Cu(ClO4)2·6H2O with acetone leads to the formation of a dimer copper complex in which the novel double aldol addition product acts as a pentadentate ligand. A possible mechanism is discussed. The work is supported by extensive crystallographic studies.
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Affiliation(s)
- Lucía Álvarez-Miguel
- GIR MIOMeT/IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid , Paseo de Belén 7, E-47011 Valladolid, Spain
| | - Héctor Barbero
- GIR MIOMeT/IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid , Paseo de Belén 7, E-47011 Valladolid, Spain
| | - Adriana Sacristán-Martín
- GIR MIOMeT/IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid , Paseo de Belén 7, E-47011 Valladolid, Spain
| | - José M Martín Álvarez
- GIR MIOMeT/IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid , Paseo de Belén 7, E-47011 Valladolid, Spain
| | - Alfonso Pérez-Encabo
- IU CINQUIMA/Química Orgánica, Facultad de Ciencias, Universidad de Valladolid , Paseo de Belén 7, E-47011 Valladolid, Spain
| | - Celedonio M Álvarez
- GIR MIOMeT/IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid , Paseo de Belén 7, E-47011 Valladolid, Spain
| | - Raúl García-Rodríguez
- GIR MIOMeT/IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid , Paseo de Belén 7, E-47011 Valladolid, Spain
| | - Daniel Miguel
- GIR MIOMeT/IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid , Paseo de Belén 7, E-47011 Valladolid, Spain
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13
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Yamashita Y, Yasukawa T, Yoo WJ, Kitanosono T, Kobayashi S. Catalytic enantioselective aldol reactions. Chem Soc Rev 2018; 47:4388-4480. [DOI: 10.1039/c7cs00824d] [Citation(s) in RCA: 165] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Recent developments in catalytic asymmetric aldol reactions have been summarized.
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Affiliation(s)
- Yasuhiro Yamashita
- Department of Chemistry
- School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Tomohiro Yasukawa
- Department of Chemistry
- School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Woo-Jin Yoo
- Department of Chemistry
- School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Taku Kitanosono
- Department of Chemistry
- School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Shū Kobayashi
- Department of Chemistry
- School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
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14
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Matsuzawa A, Noda H, Kumagai N, Shibasaki M. Direct Catalytic Asymmetric Aldol Addition of an α-CF3 Amide to Arylglyoxal Hydrates. J Org Chem 2017; 82:8304-8308. [DOI: 10.1021/acs.joc.7b01381] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Akinobu Matsuzawa
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Hidetoshi Noda
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
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15
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Noda H, Amemiya F, Weidner K, Kumagai N, Shibasaki M. Catalytic asymmetric synthesis of CF 3-substituted tertiary propargylic alcohols via direct aldol reaction of α-N 3 amide. Chem Sci 2017; 8:3260-3269. [PMID: 28553529 PMCID: PMC5424470 DOI: 10.1039/c7sc00330g] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 02/21/2017] [Indexed: 12/28/2022] Open
Abstract
Organofluorine compounds are found in several important classes of chemicals, such as pharmaceuticals, agrochemicals, and functional materials. Chemists have been immensely interested in the development of methodologies for expeditious access to fluorine containing building blocks. In this study, we report a new method for the catalytic asymmetric synthesis of CF3-substituted tertiary propargylic alcohols with two contiguous stereogenic centers via the direct aldol reaction of an α-N3 amide to trifluoromethyl ketones. The key to the success of this method is the identification of a catalyst comprising Cu(ii)/chiral hydroxamic acid to promote the desired aldol reaction, constructing a tetrasubstituted carbon in a highly stereoselective fashion. Despite substantial prior advances in asymmetric catalysis, this class of catalysts has not been utilized for the formation of carbon-carbon bond-forming reactions. Our mechanistic study sheds light on the unique profile of this catalytic system, where the Cu(ii) complex plays a bifunctional role of serving as a Lewis acid and a Brønsted base. Furthermore, the densely functionalized aldol adducts undergo chemoselective transformations, affording a series of fluorine containing chiral building blocks with widespread application.
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Affiliation(s)
- Hidetoshi Noda
- Institute of Microbial Chemistry (BIKAKEN) , 3-14-23 Kamiosaki, Shinagawa-ku , Tokyo 141-0021 , Japan . ;
| | - Fuyuki Amemiya
- Institute of Microbial Chemistry (BIKAKEN) , 3-14-23 Kamiosaki, Shinagawa-ku , Tokyo 141-0021 , Japan . ;
| | - Karin Weidner
- Institute of Microbial Chemistry (BIKAKEN) , 3-14-23 Kamiosaki, Shinagawa-ku , Tokyo 141-0021 , Japan . ;
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN) , 3-14-23 Kamiosaki, Shinagawa-ku , Tokyo 141-0021 , Japan . ;
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN) , 3-14-23 Kamiosaki, Shinagawa-ku , Tokyo 141-0021 , Japan . ;
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16
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Liu Z, Takeuchi T, Pluta R, Arteaga Arteaga F, Kumagai N, Shibasaki M. Direct Catalytic Asymmetric Aldol Reaction of α-Alkylamides. Org Lett 2017; 19:710-713. [DOI: 10.1021/acs.orglett.6b03890] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zijian Liu
- Institute of Microbial Chemistry (BIKAKEN), Tokyo, 3-14-23
Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Toshifumi Takeuchi
- Institute of Microbial Chemistry (BIKAKEN), Tokyo, 3-14-23
Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Roman Pluta
- Institute of Microbial Chemistry (BIKAKEN), Tokyo, 3-14-23
Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Fernando Arteaga Arteaga
- Institute of Microbial Chemistry (BIKAKEN), Tokyo, 3-14-23
Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN), Tokyo, 3-14-23
Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN), Tokyo, 3-14-23
Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
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17
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Arteaga FA, Liu Z, Brewitz L, Chen J, Sun B, Kumagai N, Shibasaki M. Direct Catalytic Asymmetric Mannich-Type Reaction of Alkylamides. Org Lett 2016; 18:2391-4. [DOI: 10.1021/acs.orglett.6b00879] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fernando Arteaga Arteaga
- Institute
of Microbial Chemistry (Bikaken),
Tokyo, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Zijian Liu
- Institute
of Microbial Chemistry (Bikaken),
Tokyo, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Lennart Brewitz
- Institute
of Microbial Chemistry (Bikaken),
Tokyo, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Jianyang Chen
- Institute
of Microbial Chemistry (Bikaken),
Tokyo, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Bo Sun
- Institute
of Microbial Chemistry (Bikaken),
Tokyo, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Naoya Kumagai
- Institute
of Microbial Chemistry (Bikaken),
Tokyo, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Masakatsu Shibasaki
- Institute
of Microbial Chemistry (Bikaken),
Tokyo, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
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18
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Takeda T, Kondoh A, Terada M. Construction of Vicinal Quaternary Stereogenic Centers by Enantioselective Direct Mannich-Type Reaction Using a Chiral Bis(guanidino)iminophosphorane Catalyst. Angew Chem Int Ed Engl 2016; 55:4734-7. [DOI: 10.1002/anie.201601352] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Indexed: 12/30/2022]
Affiliation(s)
- Tadahiro Takeda
- Process Technology Research Laboratories; Daiichi Sankyo Co., Ltd.; Edogawa-ku Tokyo 134-8630 Japan
| | - Azusa Kondoh
- Research and Analytical Center for Giant Molecules; Graduate School of Science; Tohoku University; Aoba-ku Sendai 980-8578 Japan
| | - Masahiro Terada
- Research and Analytical Center for Giant Molecules; Graduate School of Science; Tohoku University; Aoba-ku Sendai 980-8578 Japan
- Department of Chemistry; Graduate School of Science; Tohoku University; Aoba-ku Sendai 980-8578 Japan
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19
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Takeda T, Kondoh A, Terada M. Construction of Vicinal Quaternary Stereogenic Centers by Enantioselective Direct Mannich‐Type Reaction Using a Chiral Bis(guanidino)iminophosphorane Catalyst. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201601352] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Tadahiro Takeda
- Process Technology Research Laboratories Daiichi Sankyo Co., Ltd. Edogawa-ku Tokyo 134-8630 Japan
| | - Azusa Kondoh
- Research and Analytical Center for Giant Molecules Graduate School of Science Tohoku University Aoba-ku Sendai 980-8578 Japan
| | - Masahiro Terada
- Research and Analytical Center for Giant Molecules Graduate School of Science Tohoku University Aoba-ku Sendai 980-8578 Japan
- Department of Chemistry Graduate School of Science Tohoku University Aoba-ku Sendai 980-8578 Japan
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Zhang SL, Deng ZQ. Copper-catalyzed retro-aldol reaction of β-hydroxy ketones or nitriles with aldehydes: chemo- and stereoselective access to (E)-enones and (E)-acrylonitriles. Org Biomol Chem 2016; 14:7282-94. [DOI: 10.1039/c6ob01198e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild and efficient copper-catalyzed retro-aldol reaction of β-hydroxy ketones or nitriles with benzaldehydes produces chemo-, regio- and stereoselectively (E)-enones and (E)-acrylonitriles.
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Affiliation(s)
- Song-Lin Zhang
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Zhu-Qin Deng
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
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