1
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Díaz-Salazar H, Jiménez EI, Vallejo Narváez WE, Rocha-Rinza T, Hernández-Rodríguez M. Bifunctional squaramides with benzyl-like fragments: analysis of CH⋯π interactions by a multivariate linear regression model and quantum chemical topology. Org Chem Front 2021. [DOI: 10.1039/d0qo01610a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A multivariate linear regression model and quantum chemical topology are used for the quantitative description of non-covalent interactions in the transition state of the Michael addition catalyzed by bifunctional squaramides.
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Affiliation(s)
- Howard Díaz-Salazar
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior
- Ciudad Universitaria
- Mexico
| | - Eddy I. Jiménez
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior
- Ciudad Universitaria
- Mexico
| | - Wilmer E. Vallejo Narváez
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior
- Ciudad Universitaria
- Mexico
| | - Tomás Rocha-Rinza
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior
- Ciudad Universitaria
- Mexico
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2
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Frankowski S, Gajda T, Albrecht Ł. Isothiocyanate Strategy for the Synthesis of Quaternary α-Amino Acids Bearing a Spirocyclic Ring System. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701642] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Sebastian Frankowski
- Institute of Organic Chemistry; Department of Chemistry; Lodz University of Technology; Zeromskiego 116, 90-924 Łódź Poland
| | - Tadeusz Gajda
- Institute of Organic Chemistry; Department of Chemistry; Lodz University of Technology; Zeromskiego 116, 90-924 Łódź Poland
| | - Łukasz Albrecht
- Institute of Organic Chemistry; Department of Chemistry; Lodz University of Technology; Zeromskiego 116, 90-924 Łódź Poland
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3
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Zhang LJ, Zhang SX, Fu LN, Li XY, Guo QX. Organocatalytic synthesis of enantioenriched 1,2,4-triazolines containing a chiral quaternary carbon center. RSC Adv 2017. [DOI: 10.1039/c6ra28800f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A tertiary amine catalyzed asymmetric cyclization of isothiocyanates and azodicarboxylates towards the synthesis of chiral 1,2,4-triazolines has been described.
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Affiliation(s)
- Li-Jun Zhang
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing
- China
| | - Si-Xiang Zhang
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing
- China
| | - Li-Na Fu
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing
- China
| | - Xiao-Yun Li
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing
- China
| | - Qi-Xiang Guo
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing
- China
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4
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Echave H, López R, Palomo C. Bifunctional Brønsted Base Catalyzes Direct Asymmetric Aldol Reaction of α-Keto Amides. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510482] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Haizea Echave
- Departamento de Química Orgánica I, Facultad de Químicas; Universidad del País Vasco; Apdo. 1072 20080 San Sebastián Spain
| | - Rosa López
- Departamento de Química Orgánica I, Facultad de Químicas; Universidad del País Vasco; Apdo. 1072 20080 San Sebastián Spain
| | - Claudio Palomo
- Departamento de Química Orgánica I, Facultad de Químicas; Universidad del País Vasco; Apdo. 1072 20080 San Sebastián Spain
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5
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Echave H, López R, Palomo C. Bifunctional Brønsted Base Catalyzes Direct Asymmetric Aldol Reaction of α-Keto Amides. Angew Chem Int Ed Engl 2016; 55:3364-8. [DOI: 10.1002/anie.201510482] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Revised: 01/08/2016] [Indexed: 12/24/2022]
Affiliation(s)
- Haizea Echave
- Departamento de Química Orgánica I, Facultad de Químicas; Universidad del País Vasco; Apdo. 1072 20080 San Sebastián Spain
| | - Rosa López
- Departamento de Química Orgánica I, Facultad de Químicas; Universidad del País Vasco; Apdo. 1072 20080 San Sebastián Spain
| | - Claudio Palomo
- Departamento de Química Orgánica I, Facultad de Químicas; Universidad del País Vasco; Apdo. 1072 20080 San Sebastián Spain
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6
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Chowdhury R, Kumar M, Ghosh SK. Organocatalyzed enantioselective Michael addition/cyclization cascade reaction of 3-isothiocyanato oxindoles with arylidene malonates. Org Biomol Chem 2016; 14:11250-11260. [DOI: 10.1039/c6ob02104b] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Both enantiomers of functionalized 3,2′-pyrrolidinyl spirooxindoles were obtainedviaa Michael-cyclization cascade reaction using pseudoenantiomeric cinchona alkaloid derived thiourea based bifunctional catalysts.
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Affiliation(s)
| | - Mukesh Kumar
- Solid State Physics Division
- Bhabha Atomic Research Centre
- Mumbai 400085
- India
| | - Sunil K. Ghosh
- Bio-Organic Division
- Bhabha Atomic Research Centre
- Mumbai 400085
- India
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7
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Han WY, Zhao JQ, Zuo J, Xu XY, Zhang XM, Yuan WC. Recent Advances of α-Isothiocyanato Compounds in the Catalytic Asymmetric Reaction. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500264] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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8
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Quinine-catalyzed asymmetric domino Mannich-cyclization reactions of 3-isothiocyanato oxindoles with imines for the synthesis of spirocyclic oxindoles. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.12.074] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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9
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Eftekhari-Sis B, Zirak M. Chemistry of α-oxoesters: a powerful tool for the synthesis of heterocycles. Chem Rev 2014; 115:151-264. [PMID: 25423283 DOI: 10.1021/cr5004216] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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10
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Kayal S, Mukherjee S. Catalytic Asymmetric Michael Addition/Cyclization Cascade Reaction of 3-Isothiocyanatooxindoles with Nitro Olefins. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402534] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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11
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Sakamoto S, Kazumi N, Kobayashi Y, Tsukano C, Takemoto Y. Asymmetric Synthesis of Trisubstituted Oxazolidinones by the Thiourea-Catalyzed Aldol Reaction of 2-Isocyanatomalonate Diester. Org Lett 2014; 16:4758-61. [DOI: 10.1021/ol502198e] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Shota Sakamoto
- Graduate
School of Pharmaceutical
Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Naoya Kazumi
- Graduate
School of Pharmaceutical
Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Yusuke Kobayashi
- Graduate
School of Pharmaceutical
Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Chihiro Tsukano
- Graduate
School of Pharmaceutical
Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Yoshiji Takemoto
- Graduate
School of Pharmaceutical
Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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12
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Seiple IB, Mercer JAM, Sussman RJ, Zhang Z, Myers AG. Stereocontrolled Synthesis ofsyn-β-Hydroxy-α-Amino Acids by Direct Aldolization of Pseudoephenamine Glycinamide. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201400928] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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13
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Seiple IB, Mercer JAM, Sussman RJ, Zhang Z, Myers AG. Stereocontrolled synthesis of syn-β-Hydroxy-α-amino acids by direct aldolization of pseudoephenamine glycinamide. Angew Chem Int Ed Engl 2014; 53:4642-7. [PMID: 24692320 DOI: 10.1002/anie.201400928] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Indexed: 11/06/2022]
Abstract
β-Hydroxy-α-amino acids figure prominently as chiral building blocks in chemical synthesis and serve as precursors to numerous important medicines. Reported herein is a method for the synthesis of β-hydroxy-α-amino acid derivatives by aldolization of pseudoephenamine glycinamide, which can be prepared from pseudoephenamine in a one-flask protocol. Enolization of (R,R)- or (S,S)-pseudoephenamine glycinamide with lithium hexamethyldisilazide in the presence of LiCl followed by addition of an aldehyde or ketone substrate affords aldol addition products that are stereochemically homologous with L- or D-threonine, respectively. These products, which are typically solids, can be obtained in stereoisomerically pure form in yields of 55-98 %, and are readily transformed into β-hydroxy-α-amino acids by mild hydrolysis or into 2-amino-1,3-diols by reduction with sodium borohydride. This new chemistry greatly facilitates the construction of novel antibiotics of several different classes.
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Affiliation(s)
- Ian B Seiple
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138 (USA)
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14
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Quinine-catalyzed asymmetric domino Michael-cyclization reaction for the synthesis of spirocyclic oxindoles bearing two spiro quaternary centers and three consecutive stereocenters. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.01.036] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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15
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Tan F, Lu LQ, Yang QQ, Guo W, Bian Q, Chen JR, Xiao WJ. Enantioselective Cascade Michael Addition/Cyclization Reactions of 3-Nitro-2H-Chromenes with 3-Isothiocyanato Oxindoles: Efficient Synthesis of Functionalized Polycyclic Spirooxindoles. Chemistry 2014; 20:3415-20. [DOI: 10.1002/chem.201303583] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Indexed: 12/22/2022]
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16
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Cheng D, Ishihara Y, Tan B, Barbas CF. Organocatalytic Asymmetric Assembly Reactions: Synthesis of Spirooxindoles via Organocascade Strategies. ACS Catal 2014. [DOI: 10.1021/cs401172r] [Citation(s) in RCA: 673] [Impact Index Per Article: 67.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Daojuan Cheng
- Department
of Chemistry, South University of Science and Technology of China, Shenzhen, 518055, People’s Republic of China
| | - Yoshihiro Ishihara
- The
Skaggs Institute for Chemical Biology and Departments of Chemistry
and Cell and Molecular Biology, The Scripps Research Institute, 10550
North Torrey Pines Road, La Jolla, California 92037, United States
| | - Bin Tan
- Department
of Chemistry, South University of Science and Technology of China, Shenzhen, 518055, People’s Republic of China
- The
Skaggs Institute for Chemical Biology and Departments of Chemistry
and Cell and Molecular Biology, The Scripps Research Institute, 10550
North Torrey Pines Road, La Jolla, California 92037, United States
| | - Carlos F. Barbas
- The
Skaggs Institute for Chemical Biology and Departments of Chemistry
and Cell and Molecular Biology, The Scripps Research Institute, 10550
North Torrey Pines Road, La Jolla, California 92037, United States
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17
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Matsunaga S, Kato S, Kanai M. Enantioselective Synthesis of Spirooxindoles via Direct Catalytic Asymmetric Aldol-Type Reaction of Isothiocyanato Oxindoles. HETEROCYCLES 2014. [DOI: 10.3987/com-13-s(s)60] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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18
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Wu S, Zhu X, He W, Wang R, Xie X, Qin D, Jing L, Chen Z. Highly efficient and diastereoselective construction of bispirooxindoles through a cascade Michael-cyclization reaction. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.11.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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19
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Zhao X, Xie M, Liu X, Zhang Y, Xiao X, Lin L, Feng X. ChiralN,N′-Dioxide-Yttrium Triflate Complexes-Catalyzed Asymmetric Aldol Cyclization of α-Keto Esters with α-Isothiocyanato Imide. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300593] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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20
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Jiang Y, Pei CK, Du D, Li XG, He YN, Xu Q, Shi M. Enantioselective Synthesis of Spirooxindoles: Asymmetric [3+2] Cycloaddition of (3-Isothiocyanato)oxindoles with Azodicarboxylates. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301418] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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21
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Diastereoselective synthesis of ring-fused thiocarbamates bearing contiguous quaternary carbon centers. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.04.121] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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22
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Cao YM, Zhang FT, Shen FF, Wang R. Catalytic Enantioselective Ring-Opening Reaction ofmeso-Aziridines with α-Isothiocyanato Imides. Chemistry 2013; 19:9476-80. [DOI: 10.1002/chem.201300297] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 05/08/2013] [Indexed: 11/09/2022]
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23
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Kato S, Kanai M, Matsunaga S. Catalytic Asymmetric Synthesis of Spirooxindoles via Addition of Isothiocyanato Oxindoles to Aldehydes Under Dinuclear Nickel Schiff Base Catalysis. Chem Asian J 2013; 8:1768-71. [DOI: 10.1002/asia.201300251] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Indexed: 01/29/2023]
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24
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Highly Efficient and Stereocontrolled Construction of 3,3′-Pyrrolidonyl Spirooxindoles via Organocatalytic Domino Michael/Cyclization Reaction. Org Lett 2013; 15:1246-9. [DOI: 10.1021/ol400183k] [Citation(s) in RCA: 149] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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25
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Liu L, Zhong Y, Zhang P, Jiang X, Wang R. Core Scaffold-Inspired Stereoselective Synthesis of Spiropyrazolones via an Organocatalytic Michael/Cyclization Sequence. J Org Chem 2012; 77:10228-34. [DOI: 10.1021/jo301851a] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Luping Liu
- Key Laboratory
of Preclinical Study for New Drugs of
Gansu Province, School of Basic Medical Sciences, Institute of Biochemistry
and Molecular Biology, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, China 730000
| | - Yuan Zhong
- Key Laboratory
of Preclinical Study for New Drugs of
Gansu Province, School of Basic Medical Sciences, Institute of Biochemistry
and Molecular Biology, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, China 730000
| | - Panpan Zhang
- Key Laboratory
of Preclinical Study for New Drugs of
Gansu Province, School of Basic Medical Sciences, Institute of Biochemistry
and Molecular Biology, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, China 730000
| | - Xianxing Jiang
- Key Laboratory
of Preclinical Study for New Drugs of
Gansu Province, School of Basic Medical Sciences, Institute of Biochemistry
and Molecular Biology, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, China 730000
| | - Rui Wang
- Key Laboratory
of Preclinical Study for New Drugs of
Gansu Province, School of Basic Medical Sciences, Institute of Biochemistry
and Molecular Biology, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, China 730000
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26
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Bisai V, Bisai A, Singh VK. Enantioselective organocatalytic aldol reaction using small organic molecules. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.03.099] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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27
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Rahmani R, Matsumoto M, Yamashita Y, Kobayashi S. Direct-Type Aldol Reactions of Fluorenylidene-Protected/Activated Glycine Esters with Aldehydes for the Synthesis of β-Hydroxy-α-amino Acid Derivatives. Chem Asian J 2012; 7:1191-4. [DOI: 10.1002/asia.201200081] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Indexed: 11/10/2022]
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28
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Tan B, Zeng X, Leong WWY, Shi Z, Barbas CF, Zhong G. Core Structure-Based Design of Organocatalytic [3+2]-Cycloaddition Reactions: Highly Efficient and Stereocontrolled Syntheses of 3,3′-Pyrrolidonyl Spirooxindoles. Chemistry 2011; 18:63-7. [DOI: 10.1002/chem.201103449] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2011] [Indexed: 01/15/2023]
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29
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NHC-Catalyzed Enantioselective [2 + 2] and [2 + 2 + 2] Cycloadditions of Ketenes with Isothiocyanates. Org Lett 2011; 13:6382-5. [DOI: 10.1021/ol202688h] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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30
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De CK, Mittal N, Seidel D. A Dual-Catalysis Approach to the Asymmetric Steglich Rearrangement and Catalytic Enantioselective Addition of O-Acylated Azlactones to Isoquinolines. J Am Chem Soc 2011; 133:16802-5. [DOI: 10.1021/ja208156z] [Citation(s) in RCA: 144] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Chandra Kanta De
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Nisha Mittal
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Daniel Seidel
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
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31
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Cao Y, Jiang X, Liu L, Shen F, Zhang F, Wang R. Enantioselective Michael/Cyclization Reaction Sequence: Scaffold-Inspired Synthesis of Spirooxindoles with Multiple Stereocenters. Angew Chem Int Ed Engl 2011; 50:9124-7. [DOI: 10.1002/anie.201104216] [Citation(s) in RCA: 232] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2011] [Indexed: 01/10/2023]
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32
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Cao Y, Jiang X, Liu L, Shen F, Zhang F, Wang R. Enantioselective Michael/Cyclization Reaction Sequence: Scaffold-Inspired Synthesis of Spirooxindoles with Multiple Stereocenters. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201104216] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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33
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Terada M, Amagai K, Ando K, Kwon E, Ube H. Direct Enantioselective Amination of α-Ketoesters Catalyzed by an Axially Chiral Guanidine Base. Chemistry 2011; 17:9037-41. [DOI: 10.1002/chem.201101076] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Indexed: 11/07/2022]
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34
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Guang J, Zhao CG. Organocatalytic enantioselective tandem aldol-cyclization reaction of α-isothiocyanato imides and activated carbonyl compounds. TETRAHEDRON, ASYMMETRY 2011; 22:1205-1211. [PMID: 21921975 PMCID: PMC3171191 DOI: 10.1016/j.tetasy.2011.06.028] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
The organocatalytic enantioselective tandem aldol-cyclization reactions of α-isothiocyanato imides and activated carbonyl compounds, such as isatins, an α-ketolactone and a 1,2-dione, have been studied with cinchona alkaloid-derived thiourea-catalysts. This methodology provided an easy way to access enantiomerically enriched spirobicyclic thiocarbamates with high yields and good to excellent stereoselectivity, which have been demonstrated to be useful precursors for the synthesis of biologically active molecules.
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Affiliation(s)
- Jie Guang
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas, 78249-0698, USA
| | - Cong-Gui Zhao
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas, 78249-0698, USA
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35
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Bhanushali M, Zhao CG. Developing novel organocatalyzed aldol reactions for the enantioselective synthesis of biologically active molecules. SYNTHESIS-STUTTGART 2011; 2011:1815-1830. [PMID: 21918584 PMCID: PMC3170696 DOI: 10.1055/s-0030-1260029] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Aldol reaction is one of the most important methods for the formation of carbon-carbon bonds. Because of its significance and usefulness, asymmetric versions of this reaction have been realized with different approaches in the past. Over the last decade, the area of organocatalysis has made significant progresses. As one of most studied reactions in organocatalyses, organocatalyzed aldol reaction has emerged as a powerful tool for the synthesis of a large number of useful products in optically enriched forms. In this review, we summarize our efforts on the development of novel organocatalyzed aldol reactions for the enantioselective synthesis of biological active molecules. Literatures closely related to our studies are also covered.
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Affiliation(s)
- Mayur Bhanushali
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0698, USA
| | - Cong-Gui Zhao
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0698, USA
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36
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Chen WB, Wu ZJ, Hu J, Cun LF, Zhang XM, Yuan WC. Organocatalytic Direct Asymmetric Aldol Reactions of 3-Isothiocyanato Oxindoles to Ketones: Stereocontrolled Synthesis of Spirooxindoles Bearing Highly Congested Contiguous Tetrasubstituted Stereocenters. Org Lett 2011; 13:2472-5. [DOI: 10.1021/ol200724q] [Citation(s) in RCA: 175] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wen-Bing Chen
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- Graduate School of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi-Jun Wu
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- Graduate School of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Hu
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- Graduate School of Chinese Academy of Sciences, Beijing 100049, China
| | - Lin-Feng Cun
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- Graduate School of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao-Mei Zhang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- Graduate School of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei-Cheng Yuan
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- Graduate School of Chinese Academy of Sciences, Beijing 100049, China
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Kim HY, Oh K. Highly Diastereo- and Enantioselective Aldol Reaction of Methyl α-Isocyanoacetate: A Cooperative Catalysis Approach. Org Lett 2011; 13:1306-9. [DOI: 10.1021/ol103104y] [Citation(s) in RCA: 126] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hun Young Kim
- Department of Chemistry and Chemical Biology, Indiana University Purdue University Indianapolis, Indianapolis, Indiana 46202, United States
| | - Kyungsoo Oh
- Department of Chemistry and Chemical Biology, Indiana University Purdue University Indianapolis, Indianapolis, Indiana 46202, United States
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