1
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Budhiraja M, Ali A, Tyagi V. First biocatalytic synthesis of piperidine derivatives via an immobilized lipase-catalyzed multicomponent reaction. NEW J CHEM 2022. [DOI: 10.1039/d1nj06232h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A robust and reusable biocatalyst was constructed via immobilization of lipase onto magnetic halloysite nanotubes for the synthesis of piperidine derivatives.
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Affiliation(s)
- Meenakshi Budhiraja
- School of chemistry and Biochemistry Thapar institute of engineering and technology (TIET), Patiala, Punjab, India
| | - Amjad Ali
- School of chemistry and Biochemistry Thapar institute of engineering and technology (TIET), Patiala, Punjab, India
| | - Vikas Tyagi
- School of chemistry and Biochemistry Thapar institute of engineering and technology (TIET), Patiala, Punjab, India
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2
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Sánchez-Roselló M, Escolano M, Gaviña D, Del Pozo C. Two Decades of Progress in the Asymmetric Intramolecular aza-Michael Reaction. CHEM REC 2021; 22:e202100161. [PMID: 34415097 DOI: 10.1002/tcr.202100161] [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: 06/04/2021] [Revised: 07/22/2021] [Accepted: 08/04/2021] [Indexed: 11/08/2022]
Abstract
The asymmetric intramolecular aza-Michael reaction (IMAMR) is a very convenient strategy for the generation of heterocycles bearing nitrogen-substituted stereocenters. Due to the ubiquitous presence of these skeletons in natural products, the IMAMR has found widespread applications in the total synthesis of alkaloids and biologically relevant compounds. The development of asymmetric versions of the IMAMR are quite recent, most of them reported in this century. The fundamental advances in this field involve the use of organocatalysts. Chiral imidazolidinones, diaryl prolinol derivatives, Cinchone-derived primary amines and quaternary ammonium salts, and BINOL-derived phosphoric acids account for the success of those methodologies. Moreover, the use of N-sulfinyl imines with a dual role, as nitrogen nucleophiles and as chiral auxiliaries, appeared as a versatile mode of performing the asymmetric IMAMR.
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Affiliation(s)
- María Sánchez-Roselló
- Organic Chemistry, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100-Burjassot, Valencia), Spain
| | - Marcos Escolano
- Organic Chemistry, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100-Burjassot, Valencia), Spain
| | - Daniel Gaviña
- Organic Chemistry, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100-Burjassot, Valencia), Spain
| | - Carlos Del Pozo
- Organic Chemistry, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100-Burjassot, Valencia), Spain
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3
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Das S, Goswami G, Halder S, Ghorai MK. Domino imino-aldol-aza-Michael and imino-aldol-aza-Michael-imino-aldol reactions: Diastereoselective synthesis of highly functionalized 2,6-disubstituted piperidines. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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4
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Bates RW, Ko W, Barát V. The endo-aza-Michael addition in the synthesis of piperidines and pyrrolidines. Org Biomol Chem 2020; 18:810-829. [DOI: 10.1039/c9ob02388g] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Intramolecular endo-aza-Michael additions are categorised in various ways.
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Affiliation(s)
- Roderick W. Bates
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Weiting Ko
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Viktor Barát
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
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5
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Veeraswamy V, Goswami G, Mukherjee S, Ghosh K, Saha ML, Sengupta A, Ghorai MK. Memory of Chirality Concept in Asymmetric Intermolecular Michael Addition of α-Amino Ester Enolates to Enones and Nitroalkenes. J Org Chem 2018; 83:1106-1115. [PMID: 29272115 DOI: 10.1021/acs.joc.7b02315] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A highly stereoselective asymmetric intermolecular conjugate addition of α-amino ester derivatives to cyclic enones via the memory of chirality (MOC) concept in high yields with excellent diastereo- and enantioselectivity (dr >99:1, up to 99% ee) is reported. The applicability and the generality of the strategy was demonstrated by its further exploration to acyclic α,β-unsaturated ketone and aromatic nitroalkenes, resulting in the formation of δ-keto-α-amino ester derivative and γ-nitro-α-amino ester derivatives, respectively, with excellent ee and dr.
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Affiliation(s)
| | - Gaurav Goswami
- Department of Chemistry, Indian Institute of Technology , Kanpur, 208016, India
| | | | - Koena Ghosh
- Department of Chemistry, Indian Institute of Technology , Kanpur, 208016, India
| | - Manik Lal Saha
- Department of Chemistry, Indian Institute of Technology , Kanpur, 208016, India
| | - Arunava Sengupta
- Department of Chemistry, Indian Institute of Technology , Kanpur, 208016, India
| | - Manas K Ghorai
- Department of Chemistry, Indian Institute of Technology , Kanpur, 208016, India
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6
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Nebe M, Opatz T. Synthesis of Piperidines and Dehydropiperidines. ADVANCES IN HETEROCYCLIC CHEMISTRY 2017. [DOI: 10.1016/bs.aihch.2016.10.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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7
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Reddy AA, Reddy PO, Prasad KR. Synthesis of β-Amino-Substituted Enones by Addition of Substituted Methyl Enones to Sulfinimines: Application to the Total Synthesis of Alkaloids (+)-Lasubine II and (+)-241D and the Formal Total Synthesis of (-)-Lasubine I. J Org Chem 2016; 81:11363-11371. [PMID: 27732001 DOI: 10.1021/acs.joc.6b01541] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Addition of silyl enol ethers obtained from substituted methyl enones to chiral sulfinimines afforded the β-amino-substituted enones with excellent selectivity. Utility of the obtained N-sulfinyl β-amino ketones possessing α,β-unsaturation is exemplified in the total synthesis of the quinolizidine alkaloid natural products (-)-lasubine I, (+)-lasubine II, and substituted piperidine alkaloid (+)-241-D.
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Affiliation(s)
| | - Polimera Obula Reddy
- Department of Organic Chemistry, Indian Institute of Science , Bangalore 560012, India
| | - Kavirayani R Prasad
- Department of Organic Chemistry, Indian Institute of Science , Bangalore 560012, India
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8
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Tabassum S, Govindaraju S, Khan RUR, Pasha MA. Ultrasound mediated, green innovation for the synthesis of polysubstituted 1,4-dihydropyridines. RSC Adv 2016. [DOI: 10.1039/c6ra05441b] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An atom efficient protocol via a one-pot four-component cyclocondensation reaction catalyzed by copper(i) iodide in aqueous medium under ultrasonic irradiation has been developed for the synthesis of novel polysubstituted 1,4-dihydropyridines.
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Affiliation(s)
- Sumaiya Tabassum
- Department of Studies in Chemistry
- Central College Campus
- Bangalore University
- Bangalore-560 001
- India
| | - Santhosh Govindaraju
- Department of Studies in Chemistry
- Central College Campus
- Bangalore University
- Bangalore-560 001
- India
| | - Riyaz-ur-Rahaman Khan
- Department of Studies in Chemistry
- Central College Campus
- Bangalore University
- Bangalore-560 001
- India
| | - M. A. Pasha
- Department of Studies in Chemistry
- Central College Campus
- Bangalore University
- Bangalore-560 001
- India
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9
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Ghorai MK, Halder S, Das S. Domino Michael–Michael and Aldol–Aldol Reactions: Diastereoselective Synthesis of Functionalized Cyclohexanone Derivatives Containing Quaternary Carbon Center. J Org Chem 2015; 80:9700-12. [PMID: 26334184 DOI: 10.1021/acs.joc.5b01768] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Manas K. Ghorai
- Department of Chemistry, Indian Institute of Technology, Kanpur, 208016, India
| | - Sandipan Halder
- Department of Chemistry, Indian Institute of Technology, Kanpur, 208016, India
| | - Subhomoy Das
- Department of Chemistry, Indian Institute of Technology, Kanpur, 208016, India
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10
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Enhanced conversion of L-lysine to L-pipecolic acid using a recombinant Escherichia coli containing lysine cyclodeaminase as whole-cell biocatalyst. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcatb.2015.05.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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11
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Transition metal-free one-pot synthesis of nitrogen-containing heterocycles. Mol Divers 2015; 20:185-232. [DOI: 10.1007/s11030-015-9596-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Accepted: 04/02/2015] [Indexed: 01/22/2023]
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12
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Guerola M, Sánchez-Roselló M, Mulet C, del Pozo C, Fustero S. Asymmetric intramolecular aza-Michael reaction in desymmetrization processes. Total synthesis of hippodamine and epi-hippodamine. Org Lett 2015; 17:960-3. [PMID: 25664487 DOI: 10.1021/acs.orglett.5b00054] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The use of chiral sulfinyl amines both as nucleophilic nitrogen sources and chiral inducers has been described for the first time in a desymmetrization-type process involving an intramolecular aza-Michael reaction. The resulting product was employed as an advanced intermediate in the total synthesis of the natural product hippodamine and epi-hippodamine, taking advantage of the special symmetry of these molecules. In addition, this is the first asymmetric total synthesis of epi-hippodamine.
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Affiliation(s)
- Marta Guerola
- Departamento de Química Orgánica, Universidad de Valencia , 46100 Burjassot, Spain
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13
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Gautam LN, Su Y, Akhmedov NG, Petersen JL, Shi X. Asymmetric synthesis of substituted NH-piperidines from chiral amines. Org Biomol Chem 2014; 12:6384-8. [PMID: 24933675 DOI: 10.1039/c4ob00657g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Previously, we reported an efficient asymmetric synthesis of substituted piperidines through an exocyclic chirality induced nitroalkene/amine/enone (NAE) condensation reaction. An effective protecting group strategy was developed herein to achieve enantiopure piperidines (yields up to 92%) with complete chirality retention (ee > 95%). A simple derivatization of the obtained piperidines gave thiourea catalysts, indicating the strong potential of this method for producing new amine-based dual functional organocatalysts for future development.
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Affiliation(s)
- Lekh Nath Gautam
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, WV 26506, USA.
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14
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Li Y, Liu YY, Chen XJ, Xiong XH, Li FS. Synthesis, spectroscopic characterization, X-ray structure, and DFT calculations of some new 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxamides. PLoS One 2014; 9:e91361. [PMID: 24625887 PMCID: PMC3953339 DOI: 10.1371/journal.pone.0091361] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Accepted: 02/11/2014] [Indexed: 11/30/2022] Open
Abstract
A series of novel 1,4-dihydro-2,6- dimethyl-3,5-pyridinedicarboxamides were synthesized and characterized by infrared absorption spectrum (IR), proton nuclear magnetic resonance (1H NMR), elemental analysis, ultraviolet spectrum (UV), and fluorescence techniques, together with X-ray single crystal diffraction. The results of density functional theory (DFT) and time-dependent density functional theory (TDDFT) calculations provided a reasonable explanation on the molecular structures, the molecular frontier orbital, and the spectra of electronic absorption and emission. The present work will be helpful to systematically understanding of the structures and the optical properties of 1,4-dihydropyridines for studying the structure-activity relationship and to develop new drugs and their analytical methods.
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Affiliation(s)
- Yi Li
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - Yuan-Yuan Liu
- Department of Chemical and Pharmaceutical Engineering, Southeast University ChengXian College, Nanjing, China
- * E-mail: (YYL); (FSL)
| | - Xue-Jun Chen
- College of Science, Nanjing Tech University, Nanjing, China
| | - Xiao-Hui Xiong
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - Fang-Shi Li
- College of Science, Nanjing Tech University, Nanjing, China
- * E-mail: (YYL); (FSL)
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15
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Ghorai MK, Samanta S, Das S. Synthesis of 3,5-Disubstituted Cyclohex-2-en-1-one via a Five-Step Domino Reaction Catalyzed by Secondary Amines: Formation of (E)-α,β-Unsaturated Methyl Ketones. ASIAN J ORG CHEM 2013. [DOI: 10.1002/ajoc.201300142] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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16
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Condensation reactions of guanidines with bis-electrophiles: Formation of highly nitrogenous heterocycles. Tetrahedron 2013; 69:7719-7731. [PMID: 23976798 DOI: 10.1016/j.tet.2013.04.127] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
2-Amino-1,4-dihydropyrimidines were reacted with bis-electrophiles to produce novel fused bi-pyrimidine, pyrimido-aminotriazine, and pyrimido-sulfonamide scaffolds. In addition, a quinazoline library was constructed using a guanidine Atwal-Biginelli reaction with 1-(quinazolin-2-yl)guanidines. The product heterocycles have novel constitutions with high nitrogen atom counts and represent valuable additions to screening libraries for the discovery of new modulators of biological targets.
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17
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Abrunhosa-Thomas I, Plas A, Vogrig A, Kandepedu N, Chalard P, Troin Y. Access to 2,6-Disubstituted Piperidines: Control of the Diastereoselectivity, Scope, and Limitations. Applications to the Stereoselective Synthesis of (−)-Solenopsine A and Alkaloid (+)-241D. J Org Chem 2013; 78:2511-26. [DOI: 10.1021/jo302712f] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Isabelle Abrunhosa-Thomas
- Clermont Université,
ENSCCF, Institut de Chimie de Clermont-Ferrand (ICCF), BP 10448F-63000,
Clermont-Ferrand, France
- CNRS, UMR 6296,
Institut de
Chimie de Clermont-Ferrand (ICCF), BP 80026, F-63171 Aubiere, France
| | - Aurélie Plas
- Clermont Université, Institut
de Chimie de Clermont-Ferrand, BP 10448, F-63000, Clermont-Ferrand,
France
- CNRS, UMR 6296,
Institut de
Chimie de Clermont-Ferrand (ICCF), BP 80026, F-63171 Aubiere, France
| | - Alexandre Vogrig
- Clermont Université, Institut
de Chimie de Clermont-Ferrand, BP 10448, F-63000, Clermont-Ferrand,
France
- CNRS, UMR 6296,
Institut de
Chimie de Clermont-Ferrand (ICCF), BP 80026, F-63171 Aubiere, France
| | - Nishanth Kandepedu
- Clermont Université, Institut
de Chimie de Clermont-Ferrand, BP 10448, F-63000, Clermont-Ferrand,
France
- CNRS, UMR 6296,
Institut de
Chimie de Clermont-Ferrand (ICCF), BP 80026, F-63171 Aubiere, France
| | - Pierre Chalard
- Clermont Université,
ENSCCF, Institut de Chimie de Clermont-Ferrand (ICCF), BP 10448F-63000,
Clermont-Ferrand, France
- CNRS, UMR 6296,
Institut de
Chimie de Clermont-Ferrand (ICCF), BP 80026, F-63171 Aubiere, France
| | - Yves Troin
- Clermont Université,
ENSCCF, Institut de Chimie de Clermont-Ferrand (ICCF), BP 10448F-63000,
Clermont-Ferrand, France
- CNRS, UMR 6296,
Institut de
Chimie de Clermont-Ferrand (ICCF), BP 80026, F-63171 Aubiere, France
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18
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Zang Q, Zhou A, Javed S, Maity PK, Knudtson CA, Bi D, Hastings JJ, Basha FZ, Hanson PR. Synthesis of a Library of 1,5,2-Dithiazepine 1,1-Dioxides. Part 1: A One-Pot Sulfonylation/Thia-Michael Protocol. HETEROCYCLES 2012; 86:10.3987/COM-12-S(N)121. [PMID: 24385679 PMCID: PMC3873773 DOI: 10.3987/com-12-s(n)121] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A novel one-pot sulfonylation/intramolecular thia-Michael protocol is reported for the synthesis of 1,5,2-dithiazepine 1,1-dioxides. Sulfonylation between cysteine ethyl ester/cysteamine and 2-chloroethanesulfonyl chloride, followed by in situ intramolecular thia-Michael addition, was achieved and afforded the titled 1,5,2-dithiazepine-1,1-dioxide scaffolds. Diversification was demonstrated for future library synthesis.
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Affiliation(s)
- Qin Zang
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS 66045-7582 and the University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, Kansas 66047-3761
| | - Aihua Zhou
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS 66045-7582 and the University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, Kansas 66047-3761
| | - Salim Javed
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS 66045-7582 and the University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, Kansas 66047-3761 ; H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Pakistan
| | - Pradip K Maity
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS 66045-7582 and the University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, Kansas 66047-3761
| | - Chris A Knudtson
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS 66045-7582 and the University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, Kansas 66047-3761
| | - Danse Bi
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS 66045-7582 and the University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, Kansas 66047-3761
| | - Jared J Hastings
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS 66045-7582 and the University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, Kansas 66047-3761
| | - Fatima Z Basha
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Pakistan
| | - Paul R Hanson
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS 66045-7582 and the University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, Kansas 66047-3761
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19
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Affiliation(s)
- Hélène Pellissier
- Aix-Marseille Université, UMR CNRS 7313 Institut des Sciences Moléculaires de Marseille Equipe Chirosciences, Case 561, Campus Saint Jérôme Avenue Esc. Normandie-Niemen, 13397 Marseille Cedex 20, France
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20
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Tandem cross metathesis and intramolecular aza-Michael reaction to synthesize bicyclic piperidines and indolizidine 167E. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.08.031] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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21
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LaCl3·7H2O as an Efficient Catalyst for One-Pot Synthesis of Highly Functionalized Piperidines via Multi-component Organic Reactions. Catal Letters 2012. [DOI: 10.1007/s10562-012-0829-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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22
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Duttwyler S, Lu C, Rheingold AL, Bergman RG, Ellman JA. Highly diastereoselective synthesis of tetrahydropyridines by a C-H activation-cyclization-reduction cascade. J Am Chem Soc 2012; 134:4064-7. [PMID: 22356093 PMCID: PMC3319108 DOI: 10.1021/ja2119833] [Citation(s) in RCA: 113] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A versatile reaction cascade leading to highly substituted 1,2,3,6-tetrahydropyridines has been developed. It comprises rhodium(I)-catalyzed C-H activation-alkyne coupling followed by electrocyclization and subsequent acid/borohydride-promoted reduction. This one-pot procedure affords the target compounds in up to 95% yield with >95% diastereomeric purity.
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Affiliation(s)
- Simon Duttwyler
- Department of Chemistry, Yale University, New Haven, Connecticut, United States
| | - Colin Lu
- Department of Chemistry, Yale University, New Haven, Connecticut, United States
| | - Arnold L. Rheingold
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, United States
| | - Robert G. Bergman
- Division of Chemical Sciences, Lawrence Berkeley National Laboratory, Berkeley, California, United States
| | - Jonathan A. Ellman
- Department of Chemistry, Yale University, New Haven, Connecticut, United States
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23
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Rolfe A, Painter TO, Asad N, Hur MY, Jeon KO, Brzozowski M, Klimberg SV, Porubsky P, Neuenswander B, Lushington GH, Santini C, Hanson PR. Triazole-containing isothiazolidine 1,1-dioxide library synthesis: one-pot, multi-component protocols for small molecular probe discovery. ACS COMBINATORIAL SCIENCE 2011; 13:511-7. [PMID: 21866904 DOI: 10.1021/co200093c] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The construction of two libraries of triazole-containing isothiazolidine 1,1-dioxides is reported utilizing either a one-pot click/aza-Michael or click/OACC esterification protocol. One core dihydroisothiazole 1,1-dioxide scaffold was prepared rapidly on multigram scale via ring-closing metathesis (RCM) and was subjected to a one-pot multicomponent click/aza-Michael protocol with an array of amines and azides for the generation of a 180-member triazole-containing isothiazolidine 1,1-dioxide library. Alternatively, three daughter scaffolds were generated via the aza-Michael of three amino alcohols, followed by a one-pot, multicomponent click/esterification protocol utilizing a ring-opening metathesis polymerization (ROMP)-derived coupling reagent, oligomeric alkyl carbodiimide (OACC) to generate a 41-member library of triazole-containing isothiazole 1,1-dioxides.
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Affiliation(s)
- Alan Rolfe
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045-7582, United States
| | - Thomas O. Painter
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural Biology Center, Lawrence, Kansas 66047, United States
| | - Naeem Asad
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045-7582, United States
| | - Moon Young Hur
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045-7582, United States
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural Biology Center, Lawrence, Kansas 66047, United States
| | - Kyu Ok Jeon
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045-7582, United States
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural Biology Center, Lawrence, Kansas 66047, United States
| | - Marek Brzozowski
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045-7582, United States
| | - Sarra V. Klimberg
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045-7582, United States
| | - Patrick Porubsky
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural Biology Center, Lawrence, Kansas 66047, United States
| | - Benjamin Neuenswander
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural Biology Center, Lawrence, Kansas 66047, United States
| | - Gerald H. Lushington
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045-7582, United States
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural Biology Center, Lawrence, Kansas 66047, United States
| | - Conrad Santini
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural Biology Center, Lawrence, Kansas 66047, United States
| | - Paul R. Hanson
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045-7582, United States
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural Biology Center, Lawrence, Kansas 66047, United States
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24
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Zang Q, Javed S, Ullah F, Zhou A, Knudtson CA, Bi D, Basha FZ, Organ MG, Hanson PR. Application of a Double Aza-Michael Reaction in a 'Click, Click, Cy-Click' Strategy: From Bench to Flow. SYNTHESIS-STUTTGART 2011; 2011:2743-2750. [PMID: 21927510 DOI: 10.1055/s-0030-1260112] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The development of a 'click, click, cy-click' process utilizing a double aza-Michael reaction to generate functionalized 1,2,5-thiadiazepane 1,1-dioxides is reported. Optimization in flow, followed by scale out of the inter-/intramolecular double aza-Michael addition has also been realized using a microwave-assisted, continuous flow organic synthesis platform (MACOS). In addition, a facile one-pot, sequential strategy employing in situ Huisgen cycloaddition post-double aza-Michael has been accomplished, and is applicable to library synthesis.
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Affiliation(s)
- Qin Zang
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS 66045-7582 and the Center for Chemical Methodologies and Library Development at the University of Kansas (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, KS 66047-3761, USA
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25
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Sun J, Sun Y, Xia EY, Yan CG. Synthesis of functionalized 2-aminohydropyridines and 2-pyridinones via domino reactions of arylamines, methyl propiolate, aromatic aldehydes, and substituted acetonitriles. ACS COMBINATORIAL SCIENCE 2011; 13:436-41. [PMID: 21644554 DOI: 10.1021/co200071v] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An efficient and practical synthetic method for the functionalized 2-amino hydropyridines and 2-pyridinones was successfully developed via the domino reactions of arylamines, methyl propiolate, aromatic aldehydes and the substituted acetonitriles with triethylamine as base catalyst. Reactions involving malononitrile and cyanoacetamide gave exclusively the 2-aminohydropyridines. On the other hand ethyl cyanoacetate resulted in the 2-pyridinones as main products.
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Affiliation(s)
- Jing Sun
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Yan Sun
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Er-Yan Xia
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Chao-Guo Yan
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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