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Bakthadoss M, Mushaf M. Intramolecular [3 + 2] nitrone cycloaddition reaction: highly regio and diastereoselective synthesis of bicyclo[3.2.1]octane scaffolds. Org Biomol Chem 2020; 18:9653-9659. [PMID: 33211791 DOI: 10.1039/d0ob01960g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A regio and diastereoselective strategy has been developed for the synthesis of complex bicyclo[3.2.1]octane scaffolds from the reaction of readily accessible vinylogous carbonates with N-substituted hydroxylamine hydrochlorides via intramolecular 1,3-dipolar nitrone cycloaddition reaction. Wide varieties of bicyclic isoxazolidines were synthesized in high yields under catalyst free conditions through a highly efficient and operationally simple protocol.
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Affiliation(s)
- Manickam Bakthadoss
- Department of Chemistry, Pondicherry University, Pondicherry - 605 014, India.
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2
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Yuan W, Pan Y, Zhang X, Liang P, Zhang J, Jiao W, Shao H. Direct and highly stereoselective synthesis of quinolizidine iminosugars promoted by l-proline-Et 3N. Org Biomol Chem 2018; 16:9230-9236. [PMID: 30483692 DOI: 10.1039/c8ob01953c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild and effective method for the synthesis of polyhydroxylated quinolizidine iminosugars is described. The Mannich-type reaction of iminosugar C-glycosides with aldehyde in the presence of l-proline-Et3N provides polyhydroxylated quinolizidine iminosugars, and desired products as the potential glucosidase inhibitors were obtained in good to excellent yields with excellent stereoselectivity.
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Affiliation(s)
- Wen Yuan
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Science, Chengdu, China.
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Singh G, Gupta N, Gupta V, Ishar MPS. Reduction of chromano–piperidine-fused isoxazolidines: Tandem intramolecular rearrangements leading to 2-(methylamino)-4-oxo- N -phenyl- N -propyl-4 H -chromene-3-carboxamide. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.05.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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5
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Gualandi A, Savoia D. Substrate induced diastereoselective hydrogenation/reduction of arenes and heteroarenes. RSC Adv 2016. [DOI: 10.1039/c5ra23908g] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nature/structure of the (hetero)arene, substituent and reducing agent affect the diastereoselectivity.
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Affiliation(s)
- A. Gualandi
- Dipartimento di Chimica “G. Ciamician”
- Alma Mater Studiorum-Università di Bologna
- 40126 Bologna
- Italy
| | - D. Savoia
- Dipartimento di Chimica “G. Ciamician”
- Alma Mater Studiorum-Università di Bologna
- 40126 Bologna
- Italy
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6
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Dulla B, Tangellamudi ND, Balasubramanian S, Yellanki S, Medishetti R, Kumar Banote R, Hari Chaudhari G, Kulkarni P, Iqbal J, Reiser O, Pal M. Isovanillin derived N-(un)substituted hydroxylamines possessing an ortho-allylic group: valuable precursors to bioactive N-heterocycles. Org Biomol Chem 2014; 12:2552-8. [DOI: 10.1039/c3ob42460j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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7
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Mironiuk-Puchalska E, Rowicki T, Sas W, Koszytkowska-Stawińska M. Convenient synthesis of epimeric indolizidines by the intramolecular 1,3-dipolar cycloaddition of a sugar derived N-(3-alkenyl)nitrone. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.09.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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8
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Synthesis of new chromeno-annulated cis-fused pyrano[4,3-c]isoxazole derivatives via intramolecular nitrone cycloaddition and their cytotoxicity evaluation. Bioorg Med Chem Lett 2013; 23:4061-6. [DOI: 10.1016/j.bmcl.2013.05.060] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 05/13/2013] [Accepted: 05/18/2013] [Indexed: 11/18/2022]
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9
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Asymmetric syntheses of (8R,8aS)- and (8R,8aR)-8-hydroxy-5-indolizidinones: Two promising oxygenated indolizidine building blocks. Sci China Chem 2011. [DOI: 10.1007/s11426-011-4256-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Muncipinto G, Kaya T, Wilson JA, Kumagai N, Clemons PA, Schreiber SL. Expanding stereochemical and skeletal diversity using petasis reactions and 1,3-dipolar cycloadditions. Org Lett 2010; 12:5230-3. [PMID: 20977261 PMCID: PMC2979010 DOI: 10.1021/ol102266j] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2010] [Indexed: 12/05/2022]
Abstract
A short and modular synthetic pathway using intramolecular 1,3-dipolar cycloaddition reactions and yielding functionalized isoxazoles, isoxazolines, and isoxazolidines is described. The change in shape of previous compounds and those in this study is quantified and compared using principal moment-of-inertia shape analysis.
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Tite T, Jacquelin F, Bischoff L, Fruit C, Marsais F. An efficient approach to new dihydroxyquinolizidines. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.05.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Stecko S, Jurczak M, Staszewska-Krajewska O, Solecka J, Chmielewski M. Synthesis of polyhydroxylated 7-aminopyrrolizidines and 8-aminoindolizidines. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.06.043] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Meng L, Wang SC, Fettinger JC, Kurth MJ, Tantillo DJ. Controlling Selectivity for Cycloadditions of Nitrones and Alkenes Tethered by Benzimidazoles: Combining Experiment and Theory. European J Org Chem 2009; 2009. [PMID: 24327801 DOI: 10.1002/ejoc.200801211] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Herein we describe a combined experimental/theoretical study on the effects of substituents on regio- and stereoselectivity in intramolecular 1,3-dipolar cycloadditions of nitrones and alkenes tethered by benzimidazoles. By employing a large substituent at position R2 or R3, complete selectivity was achieved for either the fused or bridged cycloadduct, respectively. In addition, these cycloadducts were formed as single diastereomers in all of the cycloadditions examined.
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Affiliation(s)
- Liping Meng
- Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, CA 95616
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14
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Albano VG, Gualandi A, Monari M, Savoia D. Asymmetric Synthesis of 8-Aminoindolizidine from Chiral 2-Pyrroleimines. J Org Chem 2008; 73:8376-81. [DOI: 10.1021/jo8014598] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Vincenzo Giulio Albano
- Dipartimento di Chimica “G. Ciamician”, Università di Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Andrea Gualandi
- Dipartimento di Chimica “G. Ciamician”, Università di Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Magda Monari
- Dipartimento di Chimica “G. Ciamician”, Università di Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Diego Savoia
- Dipartimento di Chimica “G. Ciamician”, Università di Bologna, via Selmi 2, 40126 Bologna, Italy
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Borsini E, Broggini G, Contini A, Zecchi G. Synthesis of Enantiopure Highly Functionalized Pyrrolizines and Indolizines from Natural α-Amino Acids: An Experimental and Theoretical Investigation. European J Org Chem 2008. [DOI: 10.1002/ejoc.200701217] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Alvaro G, Di Fabio R, Gualandi A, Savoia D. Asymmetric Synthesis of 1-(2-Pyrrolyl)alkylamines by the Addition of Organometallic Reagents to Chiral 2-Pyrroleimines. European J Org Chem 2007. [DOI: 10.1002/ejoc.200700597] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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17
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Singh G, Ishar M, Gupta V, Singh G, Kalyan M, Bhella SS. Intramolecular low-temperature 1,3-dipolar cycloadditions of nitrones: synthesis of chromano-heterocycles. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.03.086] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Zou W, Sandbhor M, Bhasin M. Stereoselective Synthesis of Polyhydroxylated Quinolizidines from C-Glycosides by One-Pot Double-Conjugate Addition. J Org Chem 2007; 72:1226-34. [PMID: 17243716 DOI: 10.1021/jo062057v] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
An effective one-pot synthesis of polyhydroxylated quinolizidines from 1-C-(2'-oxo-4'-pentenyl)-5-azido-C-glycofuranosides was developed. Reduction of the 5-azido group using triphenylphosphine followed by base treatment produced quinolizidines in good yield. The base-mediated ring-opening beta-elimination produced an acyclic alpha,beta-conjugated ketone as a Michael acceptor, which was followed by an intramolecular nitrogen conjugate addition to form an aza-C-glycopyranoside intermediate. Meanwhile, the beta,gamma-double bond of the aglycon migrated under the basic conditions to form another alpha,beta-conjugated ketone. The subsequent intramolecular conjugate addition by the azasugar nitrogen led to the formation of the quinolizidines in a highly stereoselective manner. The stereoselectivity of the first conjugate addition giving azasugar is affected by the stereochemistry of the monosaccharide substrate, whereas the stereoselectivity in the second conjugate addition was likely directed entirely by steric repulsion from the azasugar.
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Affiliation(s)
- Wei Zou
- Institute for Biological Sciences, National Research Council of Canada, Ottawa, Ontario, Canada K1A 0R6.
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Paul Singh Ishar M, Singh G, Elango M, Subramaniam V. Regio- and Exo-p-Facial Selective 1,3-Dipolar Cycloaddition of a-(3-Pyridyl)-N-phenylnitrone to Norbornadiene: Activation of a p-Bond of Norbornadiene and Control of Regiochemistry of Nitrone Cycloaddition by Nitrone Addition to the Other Double Bond. HETEROCYCLES 2006. [DOI: 10.3987/com-06-10732] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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20
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Singh G, Ishar MPS, Girdhar NK, Singh L. Investigations on regio- and stereoselectivities in cycloadditions involving α- (3-pyridyl)-N-phenylnitrone: Development of an efficient route to novel nicotine analogs. J Heterocycl Chem 2005. [DOI: 10.1002/jhet.5570420603] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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21
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Broggini G, Chiesa K, De Marchi I, Martinelli M, Pilati T, Zecchi G. Efficient approach to the unknown isoxazolo[3,4-d]thieno[2,3-b]pyridine system by regioselective intramolecular nitrone cycloadditions. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.01.121] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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22
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Intramolecular cycloadditions of nitrones derived from optically active 1-alkenyl-2-imidazolecarbaldehydes: regio- and diastereoselectivity. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/j.tetasy.2004.07.065] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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23
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Basso D, Broggini G, Passarella D, Pilati T, Terraneo A, Zecchi G. Synthetic approach to imidazo[1,2-a]pyridine derivatives by the intramolecular nitrone cycloaddition methodology. Tetrahedron 2002. [DOI: 10.1016/s0040-4020(02)00404-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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