1
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Kaster SHM, Zhu L, Lyon WL, Ma R, Ammann SE, White MC. Palladium-catalyzed cross-coupling of alcohols with olefins by positional tuning of a counteranion. Science 2024; 385:1067-1076. [PMID: 39236162 DOI: 10.1126/science.ado8027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 05/31/2024] [Accepted: 07/31/2024] [Indexed: 09/07/2024]
Abstract
Transition metal-catalyzed cross-couplings have great potential to furnish complex ethers; however, challenges in the C(sp3)-O functionalization step have precluded general methods. Here, we describe computationally guided transition metal-ligand design that positions a hydrogen-bond acceptor anion at the reactive site to promote functionalization. A general cross-coupling of primary, secondary, and tertiary aliphatic alcohols with terminal olefins to furnish >130 ethers is achieved. The mild conditions tolerate functionality that is prone to substitution, elimination, and epimerization and achieve site selectivity in polyol settings. Mechanistic studies support the hypothesis that the ligand's geometry and electronics direct positioning of the phosphate anion at the π-allyl-palladium terminus, facilitating the phosphate's hydrogen-bond acceptor role toward the alcohol. Ligand-directed counteranion positioning in cationic transition metal catalysis has the potential to be a general strategy for promoting challenging bimolecular reactivity.
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Affiliation(s)
- Sven H M Kaster
- Department of Chemistry, Roger Adams Laboratory, University of Illinois, Urbana, IL, USA
| | - Lei Zhu
- Department of Chemistry, Roger Adams Laboratory, University of Illinois, Urbana, IL, USA
| | - William L Lyon
- Department of Chemistry, Roger Adams Laboratory, University of Illinois, Urbana, IL, USA
| | - Rulin Ma
- Department of Chemistry, Roger Adams Laboratory, University of Illinois, Urbana, IL, USA
| | - Stephen E Ammann
- Department of Chemistry, Roger Adams Laboratory, University of Illinois, Urbana, IL, USA
| | - M Christina White
- Department of Chemistry, Roger Adams Laboratory, University of Illinois, Urbana, IL, USA
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2
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Choyal M, Agarwal LK, Gupta N. Regioselective Synthesis of Functionalized Indolizines under Mild Conditions. ORG PREP PROCED INT 2023. [DOI: 10.1080/00304948.2022.2162317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Manisha Choyal
- Centre for Advanced Study, Department of Chemistry, University of Rajasthan, Jaipur, India
| | - Lokesh Kr. Agarwal
- Centre for Advanced Study, Department of Chemistry, University of Rajasthan, Jaipur, India
- Department of Chemistry, MLS University, Udaipur, India
| | - Neelima Gupta
- Centre for Advanced Study, Department of Chemistry, University of Rajasthan, Jaipur, India
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3
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Mohammod M, Guguloth V, Vasam CS, Thirukovela NS. Clean and efficient synthesis of 3-aminoindolizines in one-pot using recyclable CuCN/[bmim]PF 6 system. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2081811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Muqeed Mohammod
- Department of Chemistry, Chaitanya (Deemed to be University), Hanamkonda, India
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4
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Khademi Z, Heravi MM. Applications of Claisen condensations in total synthesis of natural products. An old reaction, a new perspective. Tetrahedron 2022. [DOI: 10.1016/j.tet.2021.132573] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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5
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Guguloth V, Balaboina R, Paidakula S, Thirukovela NS, Vadde R. AgI
‐promoted one‐pot synthesis of aminoindolizines via sequential
Mannich‐Grignard
addition and intramolecular cyclization in water. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | | | | | | | - Ravinder Vadde
- Department of Chemistry Kakatiya University Warangal India
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6
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Suravarapu SR, Peter B, Renaud P. Radical-mediated hydroalkylation of 2-vinylpyrrolidine derivatives: a versatile entry into indolizidine alkaloids. Sci China Chem 2019. [DOI: 10.1007/s11426-019-9598-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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7
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Yuan Q, Sigman MS. Palladium-Catalyzed Enantioselective Alkenylation of Enelactams Using a Relay Heck Strategy. Chemistry 2019; 25:10823-10827. [PMID: 31216370 DOI: 10.1002/chem.201902813] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Indexed: 01/14/2023]
Abstract
In this report, a palladium-catalyzed redox-relay Heck process to access optically active alkenylated α,β-unsaturated lactams is described. Under mild reaction conditions, electron-deficient alkenyl triflates and electron-rich alkenyl iodonium salts undergo enantioselective and site-selective coupling with enelactams to deliver the products in high yields and excellent enantioselectivities. Furthermore, the products allow facile access to natural products such as (+)-calvine and (+)-2-epicalvine in addition to the bioactive molecule aza-goniothalamin.
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Affiliation(s)
- Qianjia Yuan
- Department of Chemistry, University of Utah, 315 S 1400 E, Salt Lake City, Utah, 84112, USA
| | - Matthew S Sigman
- Department of Chemistry, University of Utah, 315 S 1400 E, Salt Lake City, Utah, 84112, USA
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8
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Clausen F, Kischkewitz M, Bergander K, Studer A. Catalytic protodeboronation of pinacol boronic esters: formal anti-Markovnikov hydromethylation of alkenes. Chem Sci 2019; 10:6210-6214. [PMID: 31360428 PMCID: PMC6585874 DOI: 10.1039/c9sc02067e] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 05/15/2019] [Indexed: 01/02/2023] Open
Abstract
Pinacol boronic esters are highly valuable building blocks in organic synthesis. In contrast to the many protocols available on the functionalizing deboronation of alkyl boronic esters, protodeboronation is not well developed. Herein we report catalytic protodeboronation of 1°, 2° and 3° alkyl boronic esters utilizing a radical approach. Paired with a Matteson-CH2-homologation, our protocol allows for formal anti-Markovnikov alkene hydromethylation, a valuable but unknown transformation. The hydromethylation sequence was applied to methoxy protected (-)-Δ8-THC and cholesterol. The protodeboronation was further used in the formal total synthesis of δ-(R)-coniceine and indolizidine 209B.
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Affiliation(s)
- Florian Clausen
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität , Corrensstraβe 40 , 48149 Münster , Germany .
| | - Marvin Kischkewitz
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität , Corrensstraβe 40 , 48149 Münster , Germany .
| | - Klaus Bergander
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität , Corrensstraβe 40 , 48149 Münster , Germany .
| | - Armido Studer
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität , Corrensstraβe 40 , 48149 Münster , Germany .
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9
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10
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Abstract
The first total synthesis of aspeverin, a prenylated indole alkaloid isolated from Aspergillus versicolor in 2013, is described. Key steps utilized to assemble the core structure of the target include a highly diastereoselective Diels-Alder reaction, a Curtius rearrangement, and a unique strategy for installation of the geminal dimethyl group. A novel iodine(III)-initiated cyclization was then used to install the bicyclic urethane linkage distinctive to the natural product.
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Affiliation(s)
- Adam M. Levinson
- Tri-Institutional PhD Program in Chemical Biology, Laboratory for Bioorganic Chemistry, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, New York 10065, United States
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11
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Marhold M, Stillig C, Fröhlich R, Haufe G. Ring-Closing Metathesis of Vinyl Fluorides towards α-Fluorinated α,β-Unsaturated Lactams and Lactones. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402535] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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12
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Fustero S, Simón-Fuentes A, Barrio P, Haufe G. Olefin Metathesis Reactions with Fluorinated Substrates, Catalysts, and Solvents. Chem Rev 2014; 115:871-930. [DOI: 10.1021/cr500182a] [Citation(s) in RCA: 142] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Santos Fustero
- Departamento
de Química Orgánica, Universidad de Valencia, E-46100 Burjassot, Spain
- Laboratorio
de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, E-46012 Valencia, Spain
| | | | - Pablo Barrio
- Departamento
de Química Orgánica, Universidad de Valencia, E-46100 Burjassot, Spain
| | - Günter Haufe
- Organisch-Chemisches
Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, D-48149 Münster, Germany
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13
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Bhat C, Tilve SG. Recent advances in the synthesis of naturally occurring pyrrolidines, pyrrolizidines and indolizidine alkaloids using proline as a unique chiral synthon. RSC Adv 2014. [DOI: 10.1039/c3ra44193h] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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14
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Li TJ, Liu ZQ, Yin HM, Yao CS, Jiang B, Wang XS, Tu SJ, Li XL, Li G. Metal-free [3 + 2 + 1]/[2 + 2 + 1] biscyclization: stereospecific construction with concomitant functionalization of indolizin-5(1H)-one. J Org Chem 2013; 78:11414-20. [PMID: 24168348 PMCID: PMC3876276 DOI: 10.1021/jo401969g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A metal-free [3 + 2 + 1]/[2 + 2 + 1] biscyclization strategy has been developed for the stereospecific construction with concomitant derivation of biologically significant indolizin-5(1H)-ones from simple and commercial starting materials. The transformations are notable because they can yield five new σ bonds and six stereocenters including a quaternary carbon center in a single operation.
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Affiliation(s)
- Tuan-Jie Li
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Zhong-Qiu Liu
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Hong-Mei Yin
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Chang-Sheng Yao
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Bo Jiang
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Xiang-Shan Wang
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Shu-Jiang Tu
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | | | - Guigen Li
- Institute of Chemistry & BioMedical Sciences, Nanjing Univers ity, Nanjing 210093, P. R. China
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409-1061, USA
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15
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Fang J, Yan CG. Synthesis of 6a,6b,13,13a-tetrahydro-6H-5-oxa-12a-azadibenzo[a,g]fluorene derivatives via cycloaddition reactions of isoquinolinium salts with 3-nitrochromenes. Mol Divers 2013; 18:91-9. [DOI: 10.1007/s11030-013-9489-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Accepted: 10/05/2013] [Indexed: 10/26/2022]
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16
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Rouden J, Lasne MC, Blanchet J, Baudoux J. (−)-Cytisine and Derivatives: Synthesis, Reactivity, and Applications. Chem Rev 2013; 114:712-78. [DOI: 10.1021/cr400307e] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Jacques Rouden
- Laboratoire de Chimie Moléculaire
et Thioorganique, ENSICAEN-Université de Caen, CNRS, Institut Normand de Chimie Moléculaire, Médicinale et Macromoléculaire (INC3M), 6 Boulevard du Maréchal Juin, 14050 Caen, France
| | - Marie-Claire Lasne
- Laboratoire de Chimie Moléculaire
et Thioorganique, ENSICAEN-Université de Caen, CNRS, Institut Normand de Chimie Moléculaire, Médicinale et Macromoléculaire (INC3M), 6 Boulevard du Maréchal Juin, 14050 Caen, France
| | - Jérôme Blanchet
- Laboratoire de Chimie Moléculaire
et Thioorganique, ENSICAEN-Université de Caen, CNRS, Institut Normand de Chimie Moléculaire, Médicinale et Macromoléculaire (INC3M), 6 Boulevard du Maréchal Juin, 14050 Caen, France
| | - Jérôme Baudoux
- Laboratoire de Chimie Moléculaire
et Thioorganique, ENSICAEN-Université de Caen, CNRS, Institut Normand de Chimie Moléculaire, Médicinale et Macromoléculaire (INC3M), 6 Boulevard du Maréchal Juin, 14050 Caen, France
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17
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18
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Kauloorkar SV, Jha V, Kumar P. Synthesis of indolizidine, pyrrolizidine and quinolizidine ring systems by proline-catalyzed sequential α-amination and HWE olefination of an aldehyde. RSC Adv 2013. [DOI: 10.1039/c3ra42001a] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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19
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Liu X, McCormack MP, Waters SP. An aza-Prins cyclization approach to functionalized indolizidines from 2-allylpyrrolidines. Org Lett 2012; 14:5574-7. [PMID: 23098169 DOI: 10.1021/ol302693u] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The stereoselective synthesis of a diverse set of functionalized indolizidine systems has been accomplished through the aza-Prins cyclization of 2-allylpyrrolidines. The condensation of aldehydes onto 2-allylpyrrolidines yields iminium ions that undergo highly diastereoselective aza-Prins cyclization, producing up to two stereogenic centers and two new rings in one step.
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Affiliation(s)
- Xiaoxi Liu
- Department of Chemistry, The University of Vermont, 82 University Place, Burlington, Vermont 05405, USA
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20
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Mishra S, Naskar B, Ghosh R. CuCl catalyzed green and efficient one-pot synthesis of aminoindolizine frameworks via three-component reactions of aldehydes, secondary amines, and terminal alkynes in PEG. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.07.113] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Chiral synthesis of indolizidines 209D and 167B via asymmetric oxidation of sulfides and sulfoxides. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.04.054] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Bovino MT, Chemler SR. Catalytic enantioselective alkene aminohalogenation/cyclization involving atom transfer. Angew Chem Int Ed Engl 2012; 51:3923-7. [PMID: 22392873 PMCID: PMC3324620 DOI: 10.1002/anie.201109044] [Citation(s) in RCA: 137] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Indexed: 11/05/2022]
Abstract
Problem solved: the title reaction was used for the synthesis of chiral 2-bromo, chloro, and iodomethyl indolines and 2-iodomethyl pyrrolidines. Stereocenter formation is believed to occur by enantioselective cis aminocupration and C-X bond formation is believed to occur by atom transfer. The ultility of the products as versatile synthetic intermediates was demonstrated, as was a radical cascade cyclization sequence.
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Affiliation(s)
- Michael T. Bovino
- Department of Chemistry, The State University of New York at Buffalo, Buffalo, NY 14260 (USA)
| | - Sherry R. Chemler
- Department of Chemistry, The State University of New York at Buffalo, Buffalo, NY 14260 (USA)
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23
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Bovino MT, Chemler SR. Catalytic Enantioselective Alkene Aminohalogenation/Cyclization Involving Atom Transfer. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201109044] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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24
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Pinho VD, Burtoloso AC. Total synthesis of (−)-indolizidine 167B via an unusual Wolff rearrangement from an α,β-unsaturated diazoketone. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2011.12.029] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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25
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Singh MS, Chowdhury S. Recent developments in solvent-free multicomponent reactions: a perfect synergy for eco-compatible organic synthesis. RSC Adv 2012. [DOI: 10.1039/c2ra01056a] [Citation(s) in RCA: 394] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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26
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Davies SG, Fletcher AM, Hughes DG, Lee JA, Price PD, Roberts PM, Russell AJ, Smith AD, Thomson JE, Williams OM. Asymmetric synthesis of piperidines and octahydroindolizines using a one-pot ring-closure/N-debenzylation procedure. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.09.038] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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27
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Hsu SF, Ko CW, Wu YT. Cobalt-Catalyzed Carbon-Carbon Bond Formation: Synthesis and Applications of Enantiopure Pyrrolidine Derivatives[1]. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100220] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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28
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29
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Reddy KKS, Rao BV, Raju SS. A common approach to pyrrolizidine and indolizidine alkaloids; formal synthesis of (−)-isoretronecanol, (−)-trachelanthamidine and an approach to the synthesis of (−)-5-epitashiromine and (−)-tashiromine. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.03.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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30
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Facile three-component domino reactions in the regioselective synthesis and antimycobacterial evaluation of novel indolizines and pyrrolo[2,1-a]isoquinolines. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.09.128] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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31
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Massah AR, Ross AJ, Jackson RFW. In Situ trapping of Boc-2-pyrrolidinylmethylzinc Iodide with Aryl Iodides: Direct Synthesis of 2-Benzylpyrrolidines. J Org Chem 2010; 75:8275-8. [DOI: 10.1021/jo101503p] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ahmad Reza Massah
- Department of Chemistry, The University of Sheffield, Dainton Building, Sheffield S3 7HF, United Kingdom
| | - Andrew J. Ross
- Department of Chemistry, The University of Sheffield, Dainton Building, Sheffield S3 7HF, United Kingdom
| | - Richard F. W. Jackson
- Department of Chemistry, The University of Sheffield, Dainton Building, Sheffield S3 7HF, United Kingdom
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32
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Panchgalle SP, Bidwai HB, Chavan SP, Kalkote UR. Organocatalytic asymmetric synthesis of (−)-δ-coniceine based on sequential proline-catalyzed asymmetric α-amination–HWE olefination. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.08.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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33
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Bagnoli L, Cacchi S, Fabrizi G, Goggiamani A, Scarponi C, Tiecco M. Diastereoselective Synthesis of Hexahydro-3H-pyrrolyzin-3-ones through Pd-Catalyzed Carboamination. J Org Chem 2010; 75:2134-7. [PMID: 20170089 DOI: 10.1021/jo1002032] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Luana Bagnoli
- Dipartimento di Chimica e Tecnologia del Farmaco, Sezione di Chimica Organica, Università di Perugia, 06123 Perugia, Italy
| | - Sandro Cacchi
- Dipartimento di Chimica e Tecnologie del Farmaco, La Sapienza, Università di Roma, P. le A. Moro 5, 00185 Rome, Italy
| | - Giancarlo Fabrizi
- Dipartimento di Chimica e Tecnologie del Farmaco, La Sapienza, Università di Roma, P. le A. Moro 5, 00185 Rome, Italy
| | - Antonella Goggiamani
- Dipartimento di Chimica e Tecnologie del Farmaco, La Sapienza, Università di Roma, P. le A. Moro 5, 00185 Rome, Italy
| | - Catalina Scarponi
- Dipartimento di Chimica e Tecnologia del Farmaco, Sezione di Chimica Organica, Università di Perugia, 06123 Perugia, Italy
| | - Marcello Tiecco
- Dipartimento di Chimica e Tecnologia del Farmaco, Sezione di Chimica Organica, Università di Perugia, 06123 Perugia, Italy
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Bencivenni G, Lanza T, Minozzi M, Nanni D, Spagnolo P, Zanardi G. Radical allylations by reaction of azides with allylindium dichloride. Org Biomol Chem 2010; 8:3444-50. [DOI: 10.1039/c001848a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Ben-Othman R, Othman M, Ciamala K, Knorr M, Strohmann C, Decroix B. Synthesis of diversely functionalized pyrrolizidines and indolizidines using olefin ring-closing metathesis. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.04.039] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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36
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Sośnicki JG. An easy approach to α,β-unsaturated δ-thiolactams via a RCM and thionation one-pot procedure. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2008.10.113] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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37
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Lamberto M, Kilburn JD. Synthesis of indolizidines from dialkylated isocyanides: a novel radical cyclisation/N-alkylation/ring closing metathesis approach. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.08.088] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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38
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Tiecco M, Testaferri L, Bagnoli L, Scarponi C. Selenium-promoted synthesis of enantiopure octahydroindolizines, hexahydro-1H-pyrrolizines and hexahydro-3H-pyrrolizin-3-ones. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.10.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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39
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Cyclization of N-Allyl-5-allyl-5-hydroxylactams to 8a-Hydroxy-1,5,8,8a-tetrahydro-2H-indolizin-3-ones Using Grubbs' Catalyst. B KOREAN CHEM SOC 2008. [DOI: 10.5012/bkcs.2008.29.4.755] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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40
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Synthesis of alkylated indolizidine alkaloids via Pummerer mediated cyclization: synthesis of (±)-indolizidine 167B, (±)-5-butylindolizidine and (±)-monomorine I. Tetrahedron 2008. [DOI: 10.1016/j.tet.2007.12.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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41
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Selenium promoted synthesis of enantiopure pyrrolidines starting from chiral aminoalcohols. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2007.11.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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42
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Lee HK, Im JH, Jung SH. Syntheses of tetrahydropyridin-3-ol and tetrahydroazepin-3-ol from a chiral aziridine-2-carboxylate. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.02.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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43
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Hjelmgaard T, Gardette D, Tanner D, Aitken DJ. Synthesis of (+)-coniceine via reductive photocyclization of dienamides: an entry to indolizidines. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2007.03.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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44
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Sośnicki JG. Convenient approach to tetrahydro-quinolizin-4-ones by sequential addition of lithium allyldibutylmagnesate to N-allylpyridin-2-ones and ring-closing metathesis reactions. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.07.072] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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45
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Ku YY, Pu YM, Grieme T, Sharma P, Bhatia AV, Cowart M. An efficient and convergent synthesis of the potent and selective H3 antagonist ABT-239. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.02.046] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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46
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Hjelmgaard T, Tanner D. Copper(i) mediated cross-coupling of amino acid derived organozinc reagents with acid chlorides. Org Biomol Chem 2006; 4:1796-805. [PMID: 16633572 DOI: 10.1039/b601996j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper describes the development of a straightforward experimental protocol for copper-mediated cross-coupling of amino acid derived beta-amido-alkylzinc iodides 1 and 3 with a range of acid chlorides. The present method uses CuCN.2LiCl as the copper source and for organozinc reagent 1 the methodology appears to be limited to reaction with more stable acid chlorides, providing the desired products in moderate yields. When applied to organozinc reagent 3, however, the protocol is more general and provides the products in good yields in all but one of the cases tested.
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Affiliation(s)
- Thomas Hjelmgaard
- Department of Chemistry, Technical University of Denmark, Lyngby, Denmark
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47
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Bolognese A, Fierro O, Guarino D, Longobardo L, Caputo R. One-Pot Synthesis of Orthogonally Protected EnantiopureS-(Aminoalkyl)cysteine Derivatives. European J Org Chem 2006. [DOI: 10.1002/ejoc.200500464] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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48
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Chou SSP, Ho CW. Synthesis and transformations of sulfur-substituted indolizidines and quinolizidines. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.09.191] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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49
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Stead D, O'Brien P, Sanderson AJ. Concise Synthesis of (±)-Cytisine via Lithiation of N-Boc-bispidine. Org Lett 2005; 7:4459-62. [PMID: 16178558 DOI: 10.1021/ol0516869] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] (+/-)-Cytisine has been synthesized in 19% overall yield via a six-step approach from commercially available materials. Key features of this new strategy are as follows: (i) initial construction of the bispidine core, (ii) lithiation-transmetalation-allylation of an N-Boc-bispidine, and (iii) a Pd/C-mediated dihydropyridone oxidation-N-debenzylation process.
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Affiliation(s)
- Darren Stead
- Department of Chemistry, University of York, Heslington, York YO10 5DD, UK
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50
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Dieter RK, Chen N, Watson RT. Copper mediated scalemic organolithium reagents in alkaloid syntheses. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.01.094] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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