1
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Sugunan A, Aparna VM, Rajendar G. Phosphonium Ion-Tethered Secondary Amines for Chemospecific 5- Enolexo Aldol Condensations of 6-Ketoaldehydes. J Org Chem 2023. [PMID: 38014421 DOI: 10.1021/acs.joc.3c02285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
A novel and highly selective 5-enolexo-exo-trig aldol condensation of 6-ketoaldehydes is presented using a proline-based alkylphosphonium ion catalyst. Bulky and oxophilic phosphonium ion plays a vital role in facilitating kinetic aldenamine formation and activating keto groups for aldol addition. This innovative approach exclusively targets five-membered carbo- and heterocyclic aldehydes, involving unusual aldehydes as donors and ketones as acceptors. Especially, enolizable aryl keto aldehydes and heteroatom-embedded ketoaldehydes exclusively produced cyclized products with our new catalyst, while other catalysts provided predominantly self-aldol or decomposed products. The scope and diversity of the method demonstrated by synthesizing different carboxaldehydes, including cyclopentene, indene, dihydrofuran, benzofuran, dihydropyrrole, indole, thiofuran, dihydrothiofuran, and benzothiofurans.
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Affiliation(s)
- Akash Sugunan
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram, Kerala 695551, India
| | - V M Aparna
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram, Kerala 695551, India
| | - Goreti Rajendar
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram, Kerala 695551, India
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2
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Torregrosa-Chinillach A, Carral-Menoyo A, Gómez-Bengoa E, Chinchilla R. Organocatalytic Enantioselective α-Nitrogenation of α,α-Disubstituted Aldehydes in the Absence of a Solvent. J Org Chem 2022; 87:14507-14513. [PMID: 36283071 PMCID: PMC9639010 DOI: 10.1021/acs.joc.2c01919] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A highly efficient enantioselective α-nitrogenation method of α,α-disubstituted aldehydes with azodicarboxylates promoted by a chiral carbamate-monoprotected cyclohexa-1,2-diamine as organocatalyst has been developed. The process was carried out without any solvent, and the corresponding α,α-disubstituted α-nitrogenated aldehydes were obtained with excellent yields and enantioselectivities up to 99% ee. The sustainability of the procedure was established through the calculation of green metrics, such as EcoScale and E-factor. In addition, theoretical calculations have been used to justify the obtained enantioselectivity sense.
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Affiliation(s)
- Alejandro Torregrosa-Chinillach
- Department
of Organic Chemistry and Institute of Organic Synthesis (ISO), University of Alicante, PO Box 99, Alicante 03080, Spain
| | - Asier Carral-Menoyo
- Department
of Organic Chemistry I, University of the
Basque Country UPV/EHU, Manuel Lardizabal 3, Donostia-San Sebastián 20018, Spain
| | - Enrique Gómez-Bengoa
- Department
of Organic Chemistry I, University of the
Basque Country UPV/EHU, Manuel Lardizabal 3, Donostia-San Sebastián 20018, Spain,
| | - Rafael Chinchilla
- Department
of Organic Chemistry and Institute of Organic Synthesis (ISO), University of Alicante, PO Box 99, Alicante 03080, Spain,
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3
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Anil SM, Sudhanva MS, Swaroop TR, Vinayaka AC, Rajeev N, Kiran KR, Shobith R, Sadashiva MP. Base Induced Condensation of Malononitrile with Erlenmeyer Azlactones: An Unexpected Synthesis of Multi‐Substituted Δ
2
‐Pyrrolines and Their Cytotoxicity. Chem Biodivers 2020; 17:e2000014. [DOI: 10.1002/cbdv.202000014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 03/06/2020] [Indexed: 01/07/2023]
Affiliation(s)
- Seegehalli M. Anil
- Institute of Plant Science ARO, Volcani Center Rishon LeZion 7505101 Israel
| | | | - Toreshettahally R. Swaroop
- Department of Studies in Organic ChemistryUniversity of Mysore, Manasagangothri Mysuru Karnataka 570006 India
| | | | - Narasimhamurthy Rajeev
- Department of Studies in ChemistryUniversity of Mysore, Manasagangothri Mysuru Karnataka 570006 India
| | - Kuppalli R. Kiran
- Department of Studies in ChemistryUniversity of Mysore, Manasagangothri Mysuru Karnataka 570006 India
| | - Rangappa Shobith
- Adichunchanagiri Institute for Molecular Medicine Nagamangala Karnataka 571448 India
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4
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Flores-Constante G, Sánchez-Chávez AC, Polindara-García LA. A Convenient Synthesis of 1,2-Disubstituted-cis
-3,4-Dihydroxypyrrolidines via an Ugi-Four-Component-Reaction/Cycloisomerization/Dihydroxylation Protocol. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800756] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Gemma Flores-Constante
- Instituto de Química; Universidad Nacional Autónoma de México; Ciudad Universitaria 04510 México, D.F. México
| | - Anahí C. Sánchez-Chávez
- Instituto de Química; Universidad Nacional Autónoma de México; Ciudad Universitaria 04510 México, D.F. México
| | - Luis A. Polindara-García
- Instituto de Química; Universidad Nacional Autónoma de México; Ciudad Universitaria 04510 México, D.F. México
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5
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Wang D, Liu W, Hong Y, Tong X. Phosphine-Catalyzed (3 + 2) Annulation of δ-Acetoxy Allenoates with 2-Sulfonamidomalonate: Synthesis of Highly Substituted 3-Pyrrolines and Mechanistic Insight. Org Lett 2018; 20:5002-5005. [DOI: 10.1021/acs.orglett.8b02156] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Dong Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, 213164, China
| | - Wei Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, 213164, China
| | - Yang Hong
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, 213164, China
| | - Xiaofeng Tong
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, 213164, China
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6
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Aufiero M, Gilmour R. Informing Molecular Design by Stereoelectronic Theory: The Fluorine Gauche Effect in Catalysis. Acc Chem Res 2018; 51:1701-1710. [PMID: 29894155 DOI: 10.1021/acs.accounts.8b00192] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The axioms of stereoelectronic theory constitute an atlas to navigate the contours of molecular space. All too rarely lauded, the advent and development of stereoelectronic theory has been one of organic chemistry's greatest triumphs. Inevitably, however, in the absence of a comprehensive treatise, many of the field's pioneers do not receive the veneration that they merit. Rather their legacies are the stereoelectronic pillars that persist in teaching and research. This ubiquity continues to afford practitioners of organic chemistry with an abundance of opportunities for creative endeavor in reaction design, in conceiving novel activation modes, in preorganizing intermediates, or in stabilizing productive transition states and products. Antipodal to steric governance, which mitigates destabilizing nonbonding interactions, stereoelectronic control allows well-defined, often complementary, conformations to be populated. Indeed, the prevalence of stabilizing hyperconjugative interactions in biosynthetic processes renders this approach to molecular preorganization decidedly biomimetic and, by extension, expansive. In this Account, the evolution and application of a simple donor-acceptor model based on the fluorine gauche effect is delineated. Founded on reinforcing hyperconjugative interactions involving C(sp3)-H bonding orbitals and C(sp3)-X antibonding orbitals [σC-H → σC-X*], this general stratagem has been used in conjunction with an array of secondary noncovalent interactions to achieve acyclic conformational control (ACC) in structures of interest. These secondary effects range from 1,3-allylic strain (A1,3) through to electrostatic charge-dipole and cation-π interactions. Synergy between these interactions ensures that rotation about strategic C(sp3)-C(sp3) bonds is subject to the stereoelectronic requirement for antiperiplanarity (180°). Logically, in a generic [X-CH2-CH2-Y] system (X, Y = electron withdrawing groups) conformations in which the two C(sp3)-X bonds are synclinal (i.e., gauche) are significantly populated. As such, simple donor-acceptor models are didactically and predictively powerful in achieving topological preorganization. In the case of the gauche effect, the low steric demand of fluorine ensures that the remaining substituents at the C(sp3) hybridized center are placed in a predictable area of molecular space: An exit vector analogy is thus appropriate. Furthermore, the intrinsic chemical stability of the C-F bond is advantageous, thus it may be considered as an inert conformational steering group: This juxtaposition of size and electronegativity renders fluorinated organic molecules unique among the organo-halogen series. Cognizant that the replacement of one fluorine atom in the difluoroethylene motif by another electron withdrawing group preserves the gauche conformation, it was reasoned that β-fluoroamines would be intriguing candidates for investigation. The burgeoning field of Lewis base catalysis, particularly via iminium ion activation, provided a timely platform from which to explore a postulated fluorine-iminium ion gauche effect. Necessarily, activation of this stereoelectronic effect requires a process of intramolecularization to generate the electron deficient neighboring group: Examples include protonation, condensation to generate iminium salts, or acylation. This process, akin to substrate binding, has obvious parallels with enzymatic catalysis, since it perturbs the conformational dynamics of the system [ synclinal-endo, antiperiplanar, synclinal-exo]. This Account details the development of conformationally predictable small molecules based on the [X-Cα-Cβ-F] motif through a logical process of molecular design and illustrates their synthetic value in enantioselective catalysis.
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Affiliation(s)
- Marialuisa Aufiero
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Ryan Gilmour
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
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7
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Mukhopadhyay S, Pan SC. Organocatalytic asymmetric synthesis of 2,4-disubstituted imidazolidines via domino addition-aza-Michael reaction. Chem Commun (Camb) 2018; 54:964-967. [PMID: 29319067 DOI: 10.1039/c7cc08338f] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The first highly diastereo- and enantioselective synthesis of 2,4-disubstituted imidazolidines has been developed via a formal [3+2] cyclization reaction. Bidentate aminomethyl enones and N-tosyl imines were used as the reaction partners in the reaction. Bifunctional squaramide catalysts were found to be efficient for this reaction and few transformations of the products have been demonstrated.
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8
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Chanda T, Zhao JC. Recent Progress in Organocatalytic Asymmetric Domino Transformations. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701059] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tanmoy Chanda
- Department of Chemistry University of Texas at San Antonio One UTSA Circle San Antonio TX 78249-0698 USA
| | - John C.‐G. Zhao
- Department of Chemistry University of Texas at San Antonio One UTSA Circle San Antonio TX 78249-0698 USA
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9
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Zhou X, Huang C, Zeng Y, Xiong J, Xiao Y, Zhang J. Silver-catalysed tandem hydroamination and cyclization of 2-trifluoromethyl-1,3-enynes with primary amines: modular entry to 4-trifluoromethyl-3-pyrrolines. Chem Commun (Camb) 2017; 53:1084-1087. [DOI: 10.1039/c6cc09595j] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly efficient AgNO3-catalyzed tandem intermolecular hydroamination and cyclization reaction of 2-trifluoromethyl-1,3-enynes with primary amines leading to 4-trifluoromethyl-3-pyrrolines under mild conditions was developed.
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Affiliation(s)
- Xiaofan Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
| | - Chaoqian Huang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
| | - Yu Zeng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
| | - Jiarui Xiong
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
| | - Yuanjing Xiao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
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10
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Marques AS, Giardinetti M, Marrot J, Coeffard V, Moreau X, Greck C. Construction of enantioenriched polysubstituted hexahydropyridazines via a sequential multicatalytic process merging palladium catalysis and aminocatalysis. Org Biomol Chem 2016; 14:2828-32. [PMID: 26876217 DOI: 10.1039/c5ob02437d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient multicatalytic strategy for the construction of nitrogen-containing heterocycles has been reported. The powerful combination of organic and metal catalysis in a single vessel allowed the formation of enantioenriched polysubstituted cyclic 6-membered hydrazines bearing a quaternary stereocenter in good yields and selectivities.
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Affiliation(s)
- A-S Marques
- Institut Lavoisier Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex, France.
| | - M Giardinetti
- Institut Lavoisier Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex, France.
| | - J Marrot
- Institut Lavoisier Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex, France.
| | - V Coeffard
- Institut Lavoisier Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex, France.
| | - X Moreau
- Institut Lavoisier Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex, France.
| | - C Greck
- Institut Lavoisier Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex, France.
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11
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Pantaine L, Richard F, Marrot J, Moreau X, Coeffard V, Greck C. Efficient Synthesis of Unsymmetrical Sulfamidesviaa Lossen-Like Rearrangement. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201501139] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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12
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Keiko NA, Vchislo NV. α,β‐Unsaturated Aldehydes in the Synthesis of Five‐Membered Heterocyclic Compounds with One Heteroatom: Recent Advances from Developments in Metal‐ and Organocatalysis. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600010] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- N. A. Keiko
- A. E. Favorsky Irkutsk Institute of ChemistrySiberian Branch of the Russian Academy of Sciences 1 Favorsky Street 664033 Irkutsk Russian Federation
| | - N. V. Vchislo
- A. E. Favorsky Irkutsk Institute of ChemistrySiberian Branch of the Russian Academy of Sciences 1 Favorsky Street 664033 Irkutsk Russian Federation
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13
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Ferreira J, Rees-Jones SCM, Ramaotsoa V, Msutu A, Hunter R. Chemoselective room temperature E1cB N–N cleavage of oxazolidinone hydrazides from enantioselective aldehyde α-hydrazination: synthesis of (+)-1,4-dideoxyallonojirimycin. Org Biomol Chem 2016; 14:1545-9. [DOI: 10.1039/c5ob02560e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A room temperature method for hydrazide N–N cleavage is presented that completes enantioselective aldehyde α-hydrazination methodology.
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Affiliation(s)
- Jasmin Ferreira
- Chemistry Department
- University of Cape Town
- Rondebosch 7701
- South Africa
| | | | - Valerie Ramaotsoa
- Chemistry Department
- University of Cape Town
- Rondebosch 7701
- South Africa
| | - Ath'enkosi Msutu
- Chemistry Department
- University of Cape Town
- Rondebosch 7701
- South Africa
| | - Roger Hunter
- Chemistry Department
- University of Cape Town
- Rondebosch 7701
- South Africa
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14
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Reddy CB, Bharti R, Kumar S, Das P. Supported palladium nanoparticles-catalyzed decarboxylative coupling approaches to aryl alkynes, indoles and pyrrolines synthesis. RSC Adv 2016. [DOI: 10.1039/c6ra12046f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The polystyrene supported palladium (Pd@PS) nanoparticles catalyzed decarboxylative coupling of arylhalides and alkynyl carboxylic acids was developed for the synthesis of diaryl alkynes, indoles and pyrrolines.
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Affiliation(s)
- C. Bal Reddy
- Natural Product Chemistry and Process Development Division
- CSIR-Institute of Himalayan Bioresource Technology
- Palampur-176061
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Richa Bharti
- Natural Product Chemistry and Process Development Division
- CSIR-Institute of Himalayan Bioresource Technology
- Palampur-176061
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Sandeep Kumar
- Natural Product Chemistry and Process Development Division
- CSIR-Institute of Himalayan Bioresource Technology
- Palampur-176061
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Pralay Das
- Natural Product Chemistry and Process Development Division
- CSIR-Institute of Himalayan Bioresource Technology
- Palampur-176061
- India
- Academy of Scientific and Innovative Research (AcSIR)
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15
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Giardinetti M, Moreau X, Coeffard V, Greck C. Aminocatalyzed Cascade Synthesis of Enantioenriched 1,7-Annulated Indoles from Indole-7-Carbaldehyde Derivatives and α,β-Unsaturated Aldehydes. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500629] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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16
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Chen YM, Chen K. Three-Component Triple Organocascade Synthesis of Hexahydropyridazine Derivatives via a Sequential Michael/Amination/Cyclization Reaction. J CHIN CHEM SOC-TAIP 2015. [DOI: 10.1002/jccs.201500227] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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17
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Zhao BL, Du DM. Organocatalytic Enantioselective Cascade Aza-Michael/Michael Addition Sequence for Asymmetric Synthesis of Chiral Spiro[pyrrolidine-3,3′-oxindole]s. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500306] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Bo-Liang Zhao
- School of Chemical Engineering and Environment; Beijing Institute of Technology; 5 South Zhongguancun Street Beijing 100081 People's Republic of China
| | - Da-Ming Du
- School of Chemical Engineering and Environment; Beijing Institute of Technology; 5 South Zhongguancun Street Beijing 100081 People's Republic of China
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University
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18
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Pantaine L, Coeffard V, Moreau X, Greck C. Enantioselective Desymmetrization of para-Quinamines through an Aminocatalyzed Aza-Michael/Cyclization Cascade Reaction. Org Lett 2015; 17:3674-7. [DOI: 10.1021/acs.orglett.5b01595] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Loïc Pantaine
- Institut Lavoisier Versailles,
UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex, France
| | - Vincent Coeffard
- Institut Lavoisier Versailles,
UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex, France
| | - Xavier Moreau
- Institut Lavoisier Versailles,
UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex, France
| | - Christine Greck
- Institut Lavoisier Versailles,
UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex, France
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19
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Zhao BL, Lin Y, Yan HH, Du DM. Squaramide-catalysed asymmetric cascade aza-Michael/Michael addition reaction for the synthesis of chiral trisubstituted pyrrolidines. Org Biomol Chem 2015; 13:11351-61. [DOI: 10.1039/c5ob01749a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A squaramide catalysed aza-Michael/Michael cascade reaction between nitroalkenes and tosylaminomethyl enones or enoates afforded highly functionalized chiral pyrrolidines in good yields (up to 99%) with good diastereoselectivities (up to 91 : 9 dr) and excellent enantioselectivities (up to >99% ee) under mild conditions.
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Affiliation(s)
- Bo-Liang Zhao
- School of Chemical Engineering and Environment
- Beijing Institute of Technology
- Beijing 100081
- People's Republic of China
| | - Ye Lin
- School of Chemical Engineering and Environment
- Beijing Institute of Technology
- Beijing 100081
- People's Republic of China
| | - Hao-Hao Yan
- School of Chemical Engineering and Environment
- Beijing Institute of Technology
- Beijing 100081
- People's Republic of China
| | - Da-Ming Du
- School of Chemical Engineering and Environment
- Beijing Institute of Technology
- Beijing 100081
- People's Republic of China
- State Key Laboratory of Elemento-Organic Chemistry
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20
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Crouillebois L, Pantaine L, Marrot J, Coeffard V, Moreau X, Greck C. Solvent- and Catalyst-Free Synthesis of Nitrogen-Containing Bicycles through Hemiaminal Formation/Diastereoselective Hetero-Diels–Alder Reaction with Diazenes. J Org Chem 2014; 80:595-601. [DOI: 10.1021/jo502087a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Laurence Crouillebois
- Institut
Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex France
| | - Loïc Pantaine
- Institut
Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex France
| | - Jérôme Marrot
- Institut
Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex France
| | - Vincent Coeffard
- Institut
Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex France
| | - Xavier Moreau
- Institut
Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex France
| | - Christine Greck
- Institut
Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex France
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Zhao BL, Liu L, Du DM. Chiral Squaramide-Catalyzed Sulfa-Michael/Aldol Cascade for the Asymmetric Synthesis of Spirocyclic Tetrahydrothiophene Chromanone Derivatives. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402889] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Zhirov AM, Aksenov AV. Azodicarboxylates: synthesis and functionalization of organic compounds. RUSSIAN CHEMICAL REVIEWS 2014. [DOI: 10.1070/rc2014v083n06abeh004419] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Desmarchelier A, Coeffard V, Moreau X, Greck C. Asymmetric organocatalytic functionalization of α,α-disubstituted aldehydes through enamine activation. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.01.056] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Molnár IG, Tanzer EM, Daniliuc C, Gilmour R. Enantioselective aziridination of cyclic enals facilitated by the fluorine-iminium ion gauche effect. Chemistry 2013; 20:794-800. [PMID: 24338989 DOI: 10.1002/chem.201303586] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Indexed: 11/11/2022]
Abstract
The enantioselective, organocatalytic aziridination of small, medium and macro-cyclic enals is reported using (S)-2-(fluorodiphenyl methyl)-pyrrolidine. Central to the reaction design is the reversible formation of a β-fluoroiminium ion intermediate, which is pre-organised on account of the fluorine-iminium ion gauche effect. This conformational effect positions the fluorine substituent synclinal-endo to the electropositive nitrogen centre thus benefiting from favourable stereoelectronic and electrostatic interactions (σC-H →σC-F *; F(δ-…︁) N(+) ). Consequently, one of the shielding groups on the fluorine-bearing carbon atom is positioned above the π-system, forming the basis of an enantioinduction strategy. Treatment of this intermediate with a "nitrene" source furnished a series of novel, optically active aziridines (e.r. up to 99.5:0.5). Further derivatisation of the product aziridines gives facile access to various amino acid derivatives, including β-fluoroamino acids. Crystallographic analyses of both the aziridines and their derivatives are disclosed.
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Affiliation(s)
- István Gábor Molnár
- Organisch-Chemisches Institut and Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster (Germany), Homepage: www.uni-muenster.de/Chemie.oc/gilmour
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Kang YK, Kim DY. Asymmetric Synthesis of Tetrahydroquinolinesvia1,5-Hydride Transfer/Cyclization Catalyzed by Chiral Primary Amine Catalysts. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300398] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Portalier F, Bourdreux F, Marrot J, Moreau X, Coeffard V, Greck C. Merging Oxidative Dearomatization and Aminocatalysis: One-Pot Enantioselective Synthesis of Tricyclic Architectures. Org Lett 2013; 15:5642-5. [DOI: 10.1021/ol402546h] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- François Portalier
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex, France
| | - Flavien Bourdreux
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex, France
| | - Jérôme Marrot
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex, France
| | - Xavier Moreau
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex, France
| | - Vincent Coeffard
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex, France
| | - Christine Greck
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex, France
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Scheffler U, Mahrwald R. Recent Advances in Organocatalytic Methods for Asymmetric CC Bond Formation. Chemistry 2013; 19:14346-96. [DOI: 10.1002/chem.201301996] [Citation(s) in RCA: 178] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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He Y, Kang TR, Liu QZ, Chen LM, Tu YL, Liu YJ, Chen TB, Wang ZQ, Liu J, Xie YM, Yang JL, He L. One-Pot Synthesis of Optically Enriched 2-Piperidinones from Aliphatic Aldehydes and Cyanoacrylamides. Org Lett 2013; 15:4054-7. [PMID: 23927000 DOI: 10.1021/ol401951g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ying He
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Tai-Ran Kang
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Quan-Zhong Liu
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Lian-Mei Chen
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yi-Lian Tu
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ya-Jun Liu
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Tang-Bin Chen
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zhi-Qiang Wang
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jie Liu
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yong-Mei Xie
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jin-Liang Yang
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Long He
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
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Bouvet S, Moreau X, Coeffard V, Greck C. Synthesis of Enantioenriched Aza-Proline Derivatives through Gold(I)-Catalyzed Cyclization of Chiral α-Hydrazino Esters. J Org Chem 2012; 78:427-37. [DOI: 10.1021/jo302320v] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Sébastien Bouvet
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex, France
| | - Xavier Moreau
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex, France
| | - Vincent Coeffard
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex, France
| | - Christine Greck
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, 78035 Versailles cedex, France
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