1
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Oishi T, Yamamoto H, Torikai K, Ebine M. Synthesis of 6/6/6-Tricyclic Ether System via Achmatowicz and Intramolecular Oxa-Michael Reactions. HETEROCYCLES 2018. [DOI: 10.3987/com-17-s(t)10] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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2
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Wu W, Li X, Huang H, Yuan X, Lu J, Zhu K, Ye J. Asymmetric Intramolecular Oxa-Michael Reactions of Cyclohexadienones Catalyzed by a Primary Amine Salt. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206977] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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3
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Wu W, Li X, Huang H, Yuan X, Lu J, Zhu K, Ye J. Asymmetric Intramolecular Oxa-Michael Reactions of Cyclohexadienones Catalyzed by a Primary Amine Salt. Angew Chem Int Ed Engl 2012; 52:1743-7. [DOI: 10.1002/anie.201206977] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Revised: 09/16/2012] [Indexed: 11/05/2022]
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4
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Fuwa H, Ichinokawa N, Noto K, Sasaki M. Stereoselective Synthesis of 2,6-Cis-Substituted Tetrahydropyrans: Brønsted Acid-Catalyzed Intramolecular Oxa-Conjugate Cyclization of α,β-Unsaturated Ester Surrogates. J Org Chem 2011; 77:2588-607. [DOI: 10.1021/jo202179s] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Haruhiko Fuwa
- Graduate
School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577,
Japan
| | - Naoki Ichinokawa
- Graduate
School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577,
Japan
| | - Kenkichi Noto
- Graduate
School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577,
Japan
| | - Makoto Sasaki
- Graduate
School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577,
Japan
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Kim H, Park Y, Hong J. Stereoselective synthesis of 2,6-cis-tetrahydropyrans through a tandem allylic oxidation/oxa-Michael reaction promoted by the gem-disubstituent effect: synthesis of (+)-neopeltolide macrolactone. Angew Chem Int Ed Engl 2009; 48:7577-81. [PMID: 19739173 DOI: 10.1002/anie.200903690] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hyoungsu Kim
- Department of Chemistry, Duke University, Durham, NC 27708, USA
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6
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Kim H, Park Y, Hong J. Stereoselective Synthesis of 2,6-cis-Tetrahydropyrans through a Tandem Allylic Oxidation/Oxa-Michael Reaction Promoted by thegem-Disubstituent Effect: Synthesis of (+)-Neopeltolide Macrolactone. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200903690] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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7
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Ferrié, L, Boulard L, Pradaux F, Bouzbouz S, Reymond S, Capdevielle P, Cossy J. Synthetic Efforts toward the Macrolactone Core of Leucascandrolide A. J Org Chem 2008; 73:1864-80. [DOI: 10.1021/jo701315h] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Laurent Ferrié,
- Laboratoire de Chimie Organique, ESPCI, CNRS, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Lucie Boulard
- Laboratoire de Chimie Organique, ESPCI, CNRS, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Fabienne Pradaux
- Laboratoire de Chimie Organique, ESPCI, CNRS, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Samir Bouzbouz
- Laboratoire de Chimie Organique, ESPCI, CNRS, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Sébastien Reymond
- Laboratoire de Chimie Organique, ESPCI, CNRS, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Patrice Capdevielle
- Laboratoire de Chimie Organique, ESPCI, CNRS, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Janine Cossy
- Laboratoire de Chimie Organique, ESPCI, CNRS, 10 rue Vauquelin, 75231 Paris Cedex 05, France
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Betancort JM, Martín T, Palazón JM, Martín VS. Stereoselective synthesis of cyclic ethers by intramolecular trapping of dicobalt hexacarbonyl-stabilized propargylic cations. J Org Chem 2003; 68:3216-24. [PMID: 12688793 DOI: 10.1021/jo0340556] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The intramolecular attack of a hydroxy group on an exo-biscobalthexacarbonyl propargylic cation provides cyclic ethers with six- to nine-membered rings. The scope and limitations of the methodology are described. The reaction is stereoselective when additional stereocenters are present, providing iterative methodology to access ladder-like cyclic ethers.
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Affiliation(s)
- Juan M Betancort
- Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna, C/Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain
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9
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Pattenden G, González MA, Little PB, Millan DS, Plowright AT, Tornos JA, Ye T. Total synthesis of (+)-phorboxazole A, a potent cytostatic agent from the sponge Phorbas sp. Org Biomol Chem 2003; 1:4173-208. [PMID: 14685321 DOI: 10.1039/b308305e] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A convergent total synthesis of phorboxazole A (1a), from the C(3-19), C(20-27) and C(33-46) fragments 5, 4 and 91, respectively, concentrating on stereocontrolled formation of the bonds at C(2-3), C(19-20) and C(27-28), is described. Although a coupling reaction between a macrolide ketone and the side chain substituted sulfone, at C(27-28) was not successful, a Wadsworth-Emmons olefination involving the oxane methyl ketone 4 and an oxazole produced the oxane 90 which was next coupled to 91 leading to the C(20-46) unit 100. A further coupling of 100 to 71c at C(19-20) then led to 105, ultimately, and the synthesis was completed by a macrocyclisation reaction from 105, at the C(2-3) alkene bond, followed by deprotection of 106.
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Affiliation(s)
- Gerald Pattenden
- School of Chemistry, The University of Nottingham, University Park, Nottingham, UK NG7 2RD.
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10
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Vakalopoulos A, Smits R, Hoffmann H. Structural and Stereochemical Diversity from (±)-2,2-Dimethyl-8-oxabicyclo[3.2.1]oct-6-en-3-one − Application to the Synthesis of Polyketide Segments of Natural Products. European J Org Chem 2002. [DOI: 10.1002/1099-0690(200205)2002:9<1538::aid-ejoc1538>3.0.co;2-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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11
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Hori N, Matsukura H, Matsuo G, Nakata T. Efficient strategy for the iterative synthesis of trans-fused polycyclic ether via SmI2-induced reductive intramolecular cyclization. Tetrahedron 2002. [DOI: 10.1016/s0040-4020(02)00042-x] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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12
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Takagi R, Nishitani H, Takenami S, Okada K, Kojima S, Ohkata K. Stereoselective Formation oftrans-2,5-Disubstituted Tetrahydropyrans by Intramolecular Nucleophilic Substitution and a Computational Study at the AM1 Level. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2001. [DOI: 10.1246/bcsj.74.1901] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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13
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Hori N, Matsukura H, Matsuo G, Nakata T. An efficient strategy for the iterative synthesis of a trans-fused polytetrahydropyran ring system via SmI2-induced reductive intramolecular cyclization. Tetrahedron Lett 1999. [DOI: 10.1016/s0040-4039(99)00301-9] [Citation(s) in RCA: 70] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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14
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Ramírez MA, Padrón JM, Palazón JM, Martín VS. Stereocontrolled Synthesis of Cyclic Ethers by Intramolecular Hetero-Michael Addition. 6. A Computational Study of the Annelation to 2,3-Disubstituted Tetrahydropyrans. J Org Chem 1997. [DOI: 10.1021/jo961925t] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Miguel A. Ramírez
- Instituto Universitario de Bio-Orgánica “Antonio González”, Universidad de La Laguna, Carretera de La Esperanza, 2, 38206 La Laguna, Tenerife, Spain
| | - José M. Padrón
- Instituto Universitario de Bio-Orgánica “Antonio González”, Universidad de La Laguna, Carretera de La Esperanza, 2, 38206 La Laguna, Tenerife, Spain
| | - José M. Palazón
- Instituto Universitario de Bio-Orgánica “Antonio González”, Universidad de La Laguna, Carretera de La Esperanza, 2, 38206 La Laguna, Tenerife, Spain
| | - Víctor S. Martín
- Instituto Universitario de Bio-Orgánica “Antonio González”, Universidad de La Laguna, Carretera de La Esperanza, 2, 38206 La Laguna, Tenerife, Spain
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Edmunds A, Trueb W. A simple asymmetric synthesis of cis-2,6-disubstituted tetrahydropyran acetic acid derivatives. Tetrahedron Lett 1997. [DOI: 10.1016/s0040-4039(96)02483-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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17
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Stereoselective syntheses and reactions of chiral oxygenated α,β-unsaturated-γ- and δ-lactones. ACTA ACUST UNITED AC 1996. [DOI: 10.1016/0957-4166(96)00424-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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Enders D, Haertwig A, Raabe G, Runsink J. Enantioselektive Synthese von vicinalen Aminoalkoholen durch Oxa-Michael-Addition. Angew Chem Int Ed Engl 1996. [DOI: 10.1002/ange.19961082026] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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19
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Evans PA, Roseman JD, Garber LT. An Iterative Approach to Biologically Important Fused Polycyclic Ethers via Acyl Radical Cyclizations. J Org Chem 1996. [DOI: 10.1021/jo9605861] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- P. Andrew Evans
- Lammot du Pont Laboratory, Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
| | - Jamie D. Roseman
- Lammot du Pont Laboratory, Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
| | - Lisa T. Garber
- Lammot du Pont Laboratory, Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
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Evans P, Garber LT. Diastereoselective formation of cyclic acetals via an intramolecular fluoride-catalyzed hetero-Michael reaction. Tetrahedron Lett 1996. [DOI: 10.1016/0040-4039(96)00449-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Nakata T, Nomura S, Matsukura H. Stereoselective synthesis of six- and seven-membered ether rings based on the ring expansion. Tetrahedron Lett 1996. [DOI: 10.1016/0040-4039(95)02131-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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22
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A stereoselective synthesis of medium-sized cyclic ethers by the intramolecular cyclization of linear hydroxyalkyl-propargylic alcohols assisted by Co2(CO)8. Tetrahedron Lett 1995. [DOI: 10.1016/0040-4039(95)00555-q] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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23
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Fujiwara K, Amano S, Oka T, Murai A. Synthesis of the Tetrahydropyran Ring Part of a Marine Toxin Polycavernoside-A. CHEM LETT 1994. [DOI: 10.1246/cl.1994.2147] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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24
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Tanaka S, Isobe M. Enantiomeric synthesis of pyran subunits of marine trans-fused polyether toxins :Epimerization of Alkynyl sugars through cobalt complexes. Tetrahedron 1994. [DOI: 10.1016/s0040-4020(01)85634-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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