1
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Affiliation(s)
- Weiming Yuan
- Shanghai Key Laboratory of Green Chemistry and Chemical Process; Department of Chemistry; East China Normal University; 3663 North Zhongshan Lu Shanghai 200062 P. R. China
| | - Liu Song
- Department of Chemistry; Fudan University; 220 Handan Lu Shanghai 200433 P. R. China
| | - Shengming Ma
- Department of Chemistry; Fudan University; 220 Handan Lu Shanghai 200433 P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai; Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 P. R. China
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2
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Yuan W, Song L, Ma S. Copper-Catalyzed Borylcupration of Allenylsilanes. Angew Chem Int Ed Engl 2016; 55:3140-3. [DOI: 10.1002/anie.201510354] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Revised: 12/10/2015] [Indexed: 01/09/2023]
Affiliation(s)
- Weiming Yuan
- Shanghai Key Laboratory of Green Chemistry and Chemical Process; Department of Chemistry; East China Normal University; 3663 North Zhongshan Lu Shanghai 200062 P. R. China
| | - Liu Song
- Department of Chemistry; Fudan University; 220 Handan Lu Shanghai 200433 P. R. China
| | - Shengming Ma
- Department of Chemistry; Fudan University; 220 Handan Lu Shanghai 200433 P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai; Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 P. R. China
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3
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Yuan X, Lin L, Chen W, Wu W, Liu X, Feng X. Synthesis of Chiral Tetrahydrofurans via Catalytic Asymmetric [3 + 2] Cycloaddition of Heterosubstituted Alkenes with Oxiranes. J Org Chem 2016; 81:1237-43. [PMID: 26765059 DOI: 10.1021/acs.joc.5b02524] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient diastereo- and enantioselective [3 + 2] cycloaddition of heterosubstituted alkenes with oxiranes via selective C-C bond cleavage of epoxides has been developed. The reaction was catalyzed by a chiral N,N'-dioxide/Ni(II) catalyst, and a variety of chiral highly substituted tetrahydrofurans were obtained in up to 99% yield, 92/8 dr, and 99% ee.
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Affiliation(s)
- Xiao Yuan
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University , Chengdu 610064, People's Republic of China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University , Chengdu 610064, People's Republic of China
| | - Weiliang Chen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University , Chengdu 610064, People's Republic of China
| | - Wangbin Wu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University , Chengdu 610064, People's Republic of China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University , Chengdu 610064, People's Republic of China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University , Chengdu 610064, People's Republic of China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin, 300071, China
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4
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Liaw CC, Liou JR, Wu TY, Chang FR, Wu YC. Acetogenins from Annonaceae. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2016; 101:113-230. [PMID: 26659109 DOI: 10.1007/978-3-319-22692-7_2] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In recent decades, annonaceous acetogenins have become highly studied plant secondary metabolites in terms of their isolation, structure elucidation, synthesis, biological evaluation, mechanism of action, and toxicity. The aim of the present contribution is to summarize chemical and biological reports published since 1997 on annonaceous acetogenins and synthetic acetogenin mimics. The compounds are considered biologically in terms of their cytotoxicity for cancer cell lines, neurotoxicity, pesticidal effects, and miscellaneous activities.
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Affiliation(s)
- Chih-Chuang Liaw
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, 804, Taiwan.
| | - Jing-Ru Liou
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
| | - Tung-Ying Wu
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
| | - Yang-Chang Wu
- School of Pharmacy, College of Pharmacy, China Medical University, Taichung, 404, Taiwan.
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5
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Lee J, Panek JS. Total Synthesis of (+)-Isatisine A: Application of a Silicon-Directed Mukaiyama-Type [3 + 2]-Annulation. J Org Chem 2015; 80:2959-71. [DOI: 10.1021/acs.joc.5b00051] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jihoon Lee
- Department
of Chemistry and
Center for Chemical Methodology and Library Development, Metcalf Center
for Science and Engineering, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - James S. Panek
- Department
of Chemistry and
Center for Chemical Methodology and Library Development, Metcalf Center
for Science and Engineering, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
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6
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7
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Chen LY, Chen JR, Cheng HG, Lu LQ, Xiao WJ. Enantioselective Synthesis of Tetrahydrofuran Derivatives by Sequential Henry Reaction and Iodocyclization of γ,δ-Unsaturated Alcohols. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402396] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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8
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Chen M, Roush WR. Enantioselective synthesis of (Z)- and (E)-2-methyl-1,5-anti-pentenediols via an allene hydroboration-double-allylboration reaction sequence. J Am Chem Soc 2013; 135:9512-7. [PMID: 23758559 PMCID: PMC3733567 DOI: 10.1021/ja4033633] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Kinetically controlled hydroboration of allenylboronate 5 followed by double allylboration with the resulting allylborane (Z)-7 gave (Z)-2-methyl-1,5-anti-pentenediols 6 in good yield and high enantioselectivity in the presence of 10% BF3·OEt2 as the catalyst in the second allylboration step. Under thermodynamically controlled isomerization conditions, (Z)-7 can readily isomerize to (E)-7. Double allylboration of representative aldehydes with allylborane (E)-7 gave (E)-2-methyl-1,5-anti-pentenediols 4 in good yield and high enantioselectivity without requiring use of the BF3·OEt2 catalyst. Thus, 2-methyl-1,5-anti-pentenediols with either olefin geometry can be synthesized from the same allenylboronate precursor 5. Furthermore, 1,5-pentenediols 4 and 6 can be easily converted to 1,3,5-triols with excellent diastereoselectivity in one step.
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Affiliation(s)
- Ming Chen
- Department of Chemistry, Scripps Florida, Jupiter, Florida 33458
| | - William R. Roush
- Department of Chemistry, Scripps Florida, Jupiter, Florida 33458
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9
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Hazra CK, Irran E, Oestreich M. Regio- and Diastereoselective Copper(I)-Catalyzed Allylic Substitution of δ-Hydroxy Allylic Chlorides by a Silicon Nucleophile. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300493] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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10
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Wu J, Pu Y, Panek JS. Divergent synthesis of functionalized carbocycles through organosilane-directed asymmetric alkyne-alkene reductive coupling and annulation sequence. J Am Chem Soc 2012; 134:18440-6. [PMID: 23057751 DOI: 10.1021/ja3083945] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An organosilane-directed alkyne-alkene reductive coupling of readily available propargylsilanes is used to access densely functionalized chiral allylsilanes. The divergent reactivity of the allylsilanes can be controlled to afford a range of novel carbocyclic ring systems through an intramolecular allylation, [3+2] annulation, and Sakurai-like homodimerization.
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Affiliation(s)
- Jie Wu
- Department of Chemistry and Center for Chemical Methodology and Library Development, Boston University, Boston, Massachusetts 02215, USA
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11
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Malkov AV, Kysilka O, Edgar M, Kadlčíková A, Kotora M, Kočovský P. A Novel Bifunctional Allyldisilane as a Triple Allylation Reagent in the Stereoselective Synthesis of Trisubstituted Tetrahydrofurans. Chemistry 2011; 17:7162-6. [DOI: 10.1002/chem.201100513] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Indexed: 11/09/2022]
Affiliation(s)
- Andrei V. Malkov
- Department of Chemistry, Loughborough University, Leicestershire, LE11 3TU (UK), Fax: (+44) 1509‐22‐3925
| | - Ondřej Kysilka
- Department of Chemistry, WestChem, University of Glasgow, Glasgow, G12 8QQ (UK), Fax: (+44) 141‐330‐4888
| | - Mark Edgar
- Department of Chemistry, Loughborough University, Leicestershire, LE11 3TU (UK), Fax: (+44) 1509‐22‐3925
| | - Aneta Kadlčíková
- Department of Organic Chemistry, Charles University in Prague, Hlavova 8, 12843 Prague 2 (Czech Republic)
| | - Martin Kotora
- Department of Organic Chemistry, Charles University in Prague, Hlavova 8, 12843 Prague 2 (Czech Republic)
| | - Pavel Kočovský
- Department of Chemistry, WestChem, University of Glasgow, Glasgow, G12 8QQ (UK), Fax: (+44) 141‐330‐4888
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12
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Chen M, Roush WR. Enantioselective syntheses of syn- and anti-β-hydroxyallylsilanes via allene hydroboration-aldehyde allylboration reactions. Org Lett 2011; 13:1992-5. [PMID: 21410173 DOI: 10.1021/ol200392u] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The kinetic hydroboration of allenylsilane 5 with ((d)Ipc)(2)BH at -40 °C provides allylborane 9Z with ≥12:1 selectivity. When the hydroboration is performed at temperatures above -40 °C, 9Z isomerizes to the thermodynamically more stable allylborane 9E with >20:1 selectivity. Subsequent treatment of 9Z or 9E with aldehydes at -78 °C provides syn- or anti-β-hydroxyallylsilanes, 7 or 8, respectively.
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Affiliation(s)
- Ming Chen
- Department of Chemistry, Scripps Florida, Jupiter, Florida 33458, USA
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13
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Friestad GK, Lee HJ. Trans-2,5-Disubstituted Tetrahydrofurans via Addition of Carbon Nucleophiles to the Strained Bicyclic Acetal 2,7-Dioxabicyclo[2.2.1]heptane. Org Lett 2009; 11:3958-61. [DOI: 10.1021/ol901613k] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Hye Jin Lee
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242
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14
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Schmidt AW, Olpp T, Schmid S, Jäger A, Knölker HJ. Cycloaddition of allylsilanes. Part 20: Organosilicon-mediated total synthesis of (±)-cameroonanol. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.01.115] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Kang B, Mowat J, Pinter T, Britton R. Development of a concise and general enantioselective approach to 2,5-disubstituted-3-hydroxytetrahydrofurans. Org Lett 2009; 11:1717-20. [PMID: 19323544 DOI: 10.1021/ol802711s] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Concise syntheses of 2,5-disubstituted-3-hydroxytetrahydrofurans have been developed that provide access to each configurational isomer of this scaffold from a single aldol adduct. Application of these methods to the rapid preparation of (6S,7S,9S,10S)- and (6S,7S,9R,10R)-6,9-epoxynonadec-18-ene-7,10-diol, two structurally related marine epoxylipids, is reported.
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Affiliation(s)
- Baldip Kang
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC, Canada
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16
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Fujita M, Ookubo Y, Sugimura T. Asymmetric cycloetherification based on a chiral auxiliary for 4-acyloxy-1-butene substrates during oxidation with iodosylbenzene via a 1,3-dioxan-2-yl cation. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.01.012] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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18
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Bates RH, Shotwell JB, Roush WR. Stereoselective syntheses of the C(1)-C(9) fragment of amphidinolide C. Org Lett 2008; 10:4343-6. [PMID: 18783230 PMCID: PMC2650083 DOI: 10.1021/ol801852j] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Stereoselective syntheses of the C(1)-C(9) fragments 18 and 28 of amphidinolide C have been developed. The first-generation sequence involves a diastereoselective chelate-controlled [3 + 2]-annulation reaction of 6 and 7, while the second-generation synthesis involves an intramolecular hetero-Michael cyclization of 8.
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Affiliation(s)
- Robert H. Bates
- Department of Chemistry, Scripps Florida, Jupiter, Florida 33458
| | - J. Brad Shotwell
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 41809
| | - William R. Roush
- Department of Chemistry, Scripps Florida, Jupiter, Florida 33458
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 41809
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19
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Huh CW, Roush WR. Highly Stereoselective and Modular Syntheses of 10-Hydroxytrilobacin and Three Diastereomers via Stereodivergent [3 + 2]-Annulation Reactions. Org Lett 2008; 10:3371-4. [DOI: 10.1021/ol801242d] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chan Woo Huh
- Department of Chemistry, Scripps Florida, Jupiter, Florida 33458
| | - William R. Roush
- Department of Chemistry, Scripps Florida, Jupiter, Florida 33458
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20
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Brovetto M, Seoane G. Stereoselective Synthesis of 3-Oxygenated-cis-dialkyl-2,5-substituted Tetrahydrofurans from Cyclohexadienediols. J Org Chem 2008; 73:5776-85. [DOI: 10.1021/jo800514k] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Margarita Brovetto
- Departamento de Química Orgánica, Facultad de Química, Universidad de la República, C.C. 1157, Montevideo, Uruguay
| | - Gustavo Seoane
- Departamento de Química Orgánica, Facultad de Química, Universidad de la República, C.C. 1157, Montevideo, Uruguay
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21
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Affiliation(s)
- Marco Lombardo
- Dipartimento di Chimica "G. Ciamician", Università degli Studi di Bologna, via Selmi 2, 40126 Bologna, Italy.
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22
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Restorp P, Fischer A, Somfai P. Stereoselective synthesis of functionalized pyrrolidines via a [3 + 2]-annulation of N-Ts-alpha-amino aldehydes and 1,3-Bis(silyl)propenes. J Am Chem Soc 2007; 128:12646-7. [PMID: 17002348 DOI: 10.1021/ja0647102] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient protocol for stereoselective synthesis of densely functionalized pyrrolidines by a [3 + 2]-annulation of N-Ts-alpha-amino aldehydes and 1,3-bis(silyl)propenes is described.
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Affiliation(s)
- Per Restorp
- Organic Chemistry and Inorganic Chemistry, KTH Chemical Science and Engineering, 100 44 Stockholm, Sweden
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23
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Hirabayashi K, Sato H, Kuriyama Y, Matsuo JI, Sato S, Shimizu T, Kamigata N. Lewis Acid Mediated Reactions of Allyl Chalcogenides with Ethyl Glyoxylate. CHEM LETT 2007. [DOI: 10.1246/cl.2007.826] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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24
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Abstract
Four amphidinolide E stereoisomers, amphidinolide E (1), 2-epi-amphidinolide E (2), 19-epi-amphidinolide E (3), and 2-epi-19-epi-amphidinolide E (4), have been synthesized via the judicious union of aldehyde 5, allylsilanes 7 or 8, acids 9 or 10, and vinylstannane 6. The C19 stereocenters of the C19 epimeric allylsilanes 7 and 8 were introduced via crotylboration reactions early in the synthesis. [3+2]-Annulation reactions of aldehyde 5 with allylsilanes 7 and 8 were employed to set the core tetrahydrofuran units of 1-4. Finally, the C2 stereocenter was installed by esterification using acid 9, without incident, or with acid 10, in which case an unexpected and completely stereoselective inversion of C2 occurs.
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Affiliation(s)
- Porino Va
- Departments of Chemistry and Biochemistry, Scripps Florida, Jupiter, Florida 33458
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25
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Hilt G, Bolze P, Harms K. An Improved Catalyst System for the Iron-Catalyzed Intermolecular Ring-Expansion Reactions of Epoxides. Chemistry 2007; 13:4312-25. [PMID: 17323394 DOI: 10.1002/chem.200601747] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A considerable improvement is reported in the iron-catalyzed ring-expansion reactions of epoxides generating tetrahydrofuran derivatives by formal insertion of an alkene. Optimization of the catalyst system revealed that a preformed [Fe(salen)] complex minimizes the formation of polymerization side-products so that increased yields of intermolecular reactions were obtained. However, more importantly, the scope of the reaction could also be enlarged considerably. The iron-catalyzed ring-expansion reaction can now be applied to some styrene oxide derivatives, acting as radical donors, as well as to a wide variety of acceptor-substituted acyclic alkenes and cyclic dienes that act as radical acceptors. The use of unsymmetrical radical acceptors led to interesting questions concerning the regiochemistry of the reactions. The conservation of the stereochemistry of the starting materials in the products was investigated through a study of the reactions of E- and Z-configured acceptor-substituted double bonds. The reactions of fumaric and maleic esters were performed and the ratios of diastereomeric and regioisomeric products were determined.
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Affiliation(s)
- Gerhard Hilt
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35043 Marburg, Germany.
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26
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Chattopadhyay A, Vichare P, Dhotare B. (R)-2,3-Cyclohexylideneglyceraldehyde: a novel template for simple entry into both cis- and trans-2,5-disubstituted tetrahydrofurans. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.02.093] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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27
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Abstract
A convergent and highly stereocontrolled synthesis of amphidinolide E (1) has been accomplished. The synthesis features a highly diastereoselective (>20:1) BF3.Et2O promoted [3+2] annulation reaction between aldehyde 3 and allylsilane 4 to afford substituted tetrahydrofuran 2.
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Affiliation(s)
- Porino Va
- Department of Chemistry, Scripps Florida, Jupiter, Florida 33458, USA
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28
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Rajender A, Gais HJ. Asymmetric Synthesis of Substituted Homoallyl Alcohols, Halomethyl Tetrahydrofurans, and Chloro-amino Sulfones from Allyltitanium Sulfoximines and α-Hetero Aldehydes. Org Lett 2007; 9:579-82. [PMID: 17286367 DOI: 10.1021/ol0627606] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Asymmetric syntheses of the iodomethyl-substituted bicyclic tetrahydrofuran 22 and the chloro-amino sulfone 30 from the allylic sulfoximine 15 and the alpha-hetero aldehydes 2 and 23, respectively, are described. Further examples for the asymmetric synthesis of chloromethyl tetrahydrofurans and chloro-amino sulfones are given. The synthesis of 30 features as key step the stereoselective Cl-substitution of a hydroxy group under neighboring group participation by an aminosulfoxonium group which is converted to a sulfonyl group. [reaction: see text].
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Affiliation(s)
- A Rajender
- Institut für Organische Chemie der Rheinisch-Westfälischen Technischen Hochschule Aachen, Landoltweg 1, 52074 Aachen, Germany
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29
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Affiliation(s)
- John P. Wolfe
- Department of Chemistry, University of Michigan, 930 N. University Avenue, Ann Arbor, MI, 48109-1055
| | - Michael B. Hay
- Department of Chemistry, University of Michigan, 930 N. University Avenue, Ann Arbor, MI, 48109-1055
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30
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Effect of stereochemistry of Δlac-acetogenins on the inhibition of mitochondrial complex I (NADH-ubiquinone oxidoreductase). Tetrahedron 2007. [DOI: 10.1016/j.tet.2006.11.057] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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31
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Hou XL, Yang Z, Yeung KS, Wong HN. Five–membered ring systems: furans and benzofurans. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/s0959-6380(07)80011-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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32
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Tinsley JM, Mertz E, Chong PY, Rarig RAF, Roush WR. Synthesis of (+)-bullatacin via the highly diastereoselective [3+2] annulation reaction of a racemic aldehyde and a nonracemic allylsilane. Org Lett 2005; 7:4245-8. [PMID: 16146398 PMCID: PMC2507730 DOI: 10.1021/ol051719k] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] A total synthesis of (+)-bullatacin has been accomplished via a diastereoselective [3+2] annulation reaction of the highly enantiomerically enriched allylsilane 3 and racemic aldehyde 4, which provides the key bis-tetrahydrofuran fragment 15 with > or = 20:1 ds.
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Affiliation(s)
| | - Eric Mertz
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109
| | - Pek Y. Chong
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109
| | | | - William R. Roush
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109
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