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Liu M, Huang J, Xu H, Dai HX. Construction of Chalcogenated Methylene Chroman-3-ones via Palladium-Catalyzed Carbocyclization. J Org Chem 2023. [PMID: 37191073 DOI: 10.1021/acs.joc.3c00341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
We report herein the synthesis of exo-chalcogenated methylene chroman-3-ones via palladium-catalyzed intramolecular acyl-chalcogenation of alkyne with thio- and selenoesters. Chalcogen containing tetrasubstituted alkenes are obtained stereoselectively. This protocol tolerates various functional groups and heterocycles, affording the chroman-3-one products in moderate-to-good yields.
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Affiliation(s)
- Min Liu
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Jiaxin Huang
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hui Xu
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Hui-Xiong Dai
- CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- School of Pharmaceutical Science and Technology, Hangzhou Institute of Advanced Study, Hangzhou 310024, China
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2
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Kotipalli T, Hou D. Synthesis of 3‐Bromoindenes from 4‐Alkynyl Alcohols/Sulfonamides and Aldehydes via Prins Cyclization, Ring‐Opening and Friedel‐Crafts Reactions. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900292] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Trimurtulu Kotipalli
- Department of ChemistryNational Central University Jhong-Li City Taoyuan Taiwan 32001
| | - Duen‐Ren Hou
- Department of ChemistryNational Central University Jhong-Li City Taoyuan Taiwan 32001
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3
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Holt C, Alachouzos G, Frontier AJ. Leveraging the Halo-Nazarov Cyclization for the Chemodivergent Assembly of Functionalized Haloindenes and Indanones. J Am Chem Soc 2019; 141:5461-5469. [DOI: 10.1021/jacs.9b00198] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Connor Holt
- Department of Chemistry, University of Rochester, 414 Hutchison Hall, 100 Trustee Road, Rochester, New York 14627-0216, United States
| | - Georgios Alachouzos
- Department of Chemistry, University of Rochester, 414 Hutchison Hall, 100 Trustee Road, Rochester, New York 14627-0216, United States
| | - Alison J. Frontier
- Department of Chemistry, University of Rochester, 414 Hutchison Hall, 100 Trustee Road, Rochester, New York 14627-0216, United States
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4
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Silwal S, Rahaim RJ. Regioselective Synthesis of Enones via a Titanium-Promoted Coupling of Unsymmetrical Alkynes with Weinreb Amides. J Org Chem 2014; 79:8469-76. [DOI: 10.1021/jo5014417] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sajan Silwal
- Department
of Chemistry, Oklahoma State University, 107 Physical Sciences 1, Stillwater, Oklahoma 74078, United States
| | - Ronald J. Rahaim
- Department
of Chemistry, Oklahoma State University, 107 Physical Sciences 1, Stillwater, Oklahoma 74078, United States
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5
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Schäfer C, Miesch M, Miesch L. Intramolecular reductive ketone–alkynoate coupling reaction promoted by (η2-propene)titanium. Org Biomol Chem 2012; 10:3253-7. [DOI: 10.1039/c2ob07049a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Abstract
BACKGROUND The nuclear transcription factor NF-κB has gained considerable importance due to its major involvement in inflammation and constitutive activity in malignant cells. It is induced by a variety of stimuli and controls the expression of several proteins involved in biological processes. Numerous natural products and synthesized organic molecules have been reported to inhibit NF-κB and have played an integral role in identifying implicated pathways. Prominent among them are the sesquiterpene lactones, polyphenolic enones and other α,β-unsaturated carbonyl-containing molecules, particularly α-methylene-γ-butyrolactones. DISCUSSION This mini-review provides an introductory overview of some of the associated pathways involving NF-κB in cancer and discusses the structures and mode of action of natural α,β-unsaturated carbonyl-containing inhibitors and their synthetic counterparts. A review of the recent methods for the synthesis of α-alkylidene-γ-butyrolactones is also provided, with the aim of arousing the interest of synthetic chemists for the design and development of novel NF-κB inhibitors. CONCLUSIONS Modulating damaging effects without harming the inflammatory and immune responses are crucial parameters for developing NF-κB inhibitors. Examination of novel α,β-unsaturated carbonyls and the further discovery of simple methods to prepare such molecules should lead to the identification of site-specific inhibitors.
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Cheng X, Duhaime CM, Waters SP. Total synthesis of the Aspidosperma alkaloid (±)-subincanadine F via a titanium-mediated intramolecular nucleophilic acyl substitution strategy. J Org Chem 2011; 75:7026-8. [PMID: 20845963 DOI: 10.1021/jo1015823] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The total synthesis of the bridge-fused Aspidosperma indole alkaloid (±)-subincanadine F has been accomplished in seven steps. The synthetic utility of a titanium-mediated intramolecular nucleophilic acyl substitution (INAS) reaction for the construction of the bridge-fused ring system was demonstrated.
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Affiliation(s)
- Xiayun Cheng
- Department of Chemistry, The University of Vermont, 82 University Place, Burlington, Vermont 05405, USA
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8
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Wolan A, Six Y. Synthetic transformations mediated by the combination of titanium(IV) alkoxides and Grignard reagents: selectivity issues and recent applications. Part 2: Reactions of alkenes, allenes and alkynes. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.01.079] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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Synthetic transformations mediated by the combination of titanium(IV) alkoxides and grignard reagents: selectivity issues and recent applications. Part 1: reactions of carbonyl derivatives and nitriles. Tetrahedron 2010. [DOI: 10.1016/j.tet.2009.10.050] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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10
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Wolan A, Cadoret F, Six Y. A convenient titanium-mediated intermolecular alkyne–carbonate coupling reaction. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.07.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Wang B. Synthesis of 3-alkylidene-piperidin-4-ones via one-pot cascade transylidation–olefination. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.03.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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Wang B, Zhong Z, Lin GQ. Efficient Construction of Stereodefined α-Alkylidene Aza-cycloketones via β-Amino-alkenyllithium: Straightforward and Protection-Free Synthesis of Allopumiliotoxin 267A. Org Lett 2009; 11:2011-4. [DOI: 10.1021/ol900452n] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bing Wang
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China, Institutes of Biomedical Sciences, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China, and Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Zheng Zhong
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China, Institutes of Biomedical Sciences, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China, and Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Guo-Qiang Lin
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China, Institutes of Biomedical Sciences, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China, and Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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13
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Bartoli G, Bosco M, Carlone A, Locatelli M, Marcantoni E, Melchiorre P, Palazzi P, Sambri L. A New, Mild, General and Efficient Route to Aryl Ethyl Carbonates in Solvent-Free Conditions Promoted by Magnesium Perchlorate. European J Org Chem 2006. [DOI: 10.1002/ejoc.200600366] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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Lee KY, Gowrisankar S, Lee YJ, Kim JN. Synthesis of 2-amino-2,3-dihydrobenzofurans and fully substituted furans from modified Baylis–Hillman adducts. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.06.093] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Lóránd T, Forgó P, Földesi A, Ôsz E, Prókai L. Improved Solvent-Free Synthesis and Structure Elucidation of (E)- and (Z)-4-(Arylmethylene)-3-isochromanones. European J Org Chem 2002. [DOI: 10.1002/1099-0690(200209)2002:17<2996::aid-ejoc2996>3.0.co;2-g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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16
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Kim K, Okamoto S, Takayama Y, Sato F. Asymmetric synthesis of stereodefined α-alkyl-γ-benzyloxymethyl-β-trimethylsilyl-γ-butyrolactones that serve as an efficient precursor for constructing carbon skeletons having a tertiary or quaternary stereogenic center. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)00770-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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17
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Ito H, Omodera K, Takigawa Y, Taguchi T. Zirconium-mediated intramolecular ester transfer reaction: synthesis of alpha-substituted gamma-aminobutyric acid (GABA) derivatives. Org Lett 2002; 4:1499-501. [PMID: 11975613 DOI: 10.1021/ol025709k] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text]. The zirconium-mediated intramolecular ester transfer reaction of N-alkenyl carbamate derivatives proceeded to give alpha-substituted gamma-aminobutyric acid (GABA) derivatives in good to excellent yields. Quenching experiments of the reaction mixture with iodine or O2 indicated the presence of a cyclopropane intermediate. The resulting iodide was converted to 2-substituted pyrrolidine-3-carboxylate and/or alpha-alkylidene-gamma-aminobutyric acid derivatives in a stereospecific manner.
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Affiliation(s)
- Hisanaka Ito
- School of Pharmacy, Tokyo University of Pharmacy and Life Science, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
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18
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Liard A, Kaftanov J, Chechik H, Farhat S, Morlender-Vais N, Averbuj C, Marek I. Addition–β-elimination: a new method for the preparation of organometallic compounds. J Organomet Chem 2001. [DOI: 10.1016/s0022-328x(00)00842-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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19
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Kulinkovich OG, de Meijere A. 1,n-Dicarbanionic Titanium Intermediates from Monocarbanionic Organometallics and Their Application in Organic Synthesis. Chem Rev 2000; 100:2789-834. [PMID: 11749306 DOI: 10.1021/cr980046z] [Citation(s) in RCA: 325] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- O G Kulinkovich
- Chemical Department of Belarussian State University, Skaryny Av. 4, 220050 Minsk, Belarus, and Institut für Organische Chemie der Georg-August-Universität Göttingen, Tammannstrasse 2, D-37077 Göttingen, Germany
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Sato F, Urabe H, Okamoto S. Synthesis of organotitanium complexes from alkenes and alkynes and their synthetic applications. Chem Rev 2000; 100:2835-86. [PMID: 11749307 DOI: 10.1021/cr990277l] [Citation(s) in RCA: 320] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- F Sato
- Department of Biomolecular Engineering, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
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21
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Urabe H, Narita M, Sato F. Die Umwandlung von Titanacyclen in Carbocyclen: ein vorteilhafter Syntheseweg zu Cyclopentadienolen. Angew Chem Int Ed Engl 1999. [DOI: 10.1002/(sici)1521-3757(19991203)111:23<3726::aid-ange3726>3.0.co;2-f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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22
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Mincheva Z, Gao Y, Sato F. Efficient and practical method for synthesizing optically active γ-trityloxymethyl-α-alkylidene-γ-butyrolactones using Ti(II)-mediated intramolecular nucleophilic acyl substitution reaction. Tetrahedron Lett 1998. [DOI: 10.1016/s0040-4039(98)01769-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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23
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Mézailles N, Avarvari N, Bourissou D, Mathey F, Le Floch P. Metallacycle Transfer Reaction from Titanacyclopropenes: A New and Versatile Approach to Phosphirenes. Organometallics 1998. [DOI: 10.1021/om980244g] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nicolas Mézailles
- Laboratoire “Hétéroéléments et Coordination”, UMR CNRS 7653, Ecole Polytechnique, 91128 Palaiseau Cedex, France
| | - Narcis Avarvari
- Laboratoire “Hétéroéléments et Coordination”, UMR CNRS 7653, Ecole Polytechnique, 91128 Palaiseau Cedex, France
| | - Didier Bourissou
- Laboratoire “Hétéroéléments et Coordination”, UMR CNRS 7653, Ecole Polytechnique, 91128 Palaiseau Cedex, France
| | - François Mathey
- Laboratoire “Hétéroéléments et Coordination”, UMR CNRS 7653, Ecole Polytechnique, 91128 Palaiseau Cedex, France
| | - Pascal Le Floch
- Laboratoire “Hétéroéléments et Coordination”, UMR CNRS 7653, Ecole Polytechnique, 91128 Palaiseau Cedex, France
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25
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Thorn MG, Hill JE, Waratuke SA, Johnson ES, Fanwick PE, Rothwell IP. Synthesis and Chemistry of Titanacyclopentane and Titanacyclopropane Rings Supported by Aryloxide Ligation. J Am Chem Soc 1997. [DOI: 10.1021/ja970515z] [Citation(s) in RCA: 105] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matthew G. Thorn
- Contribution from the Department of Chemistry, 1393 Brown Building, Purdue University, West Lafayette, Indiana 47907-1393
| | - John E. Hill
- Contribution from the Department of Chemistry, 1393 Brown Building, Purdue University, West Lafayette, Indiana 47907-1393
| | - Steven A. Waratuke
- Contribution from the Department of Chemistry, 1393 Brown Building, Purdue University, West Lafayette, Indiana 47907-1393
| | - Eric S. Johnson
- Contribution from the Department of Chemistry, 1393 Brown Building, Purdue University, West Lafayette, Indiana 47907-1393
| | - Phillip E. Fanwick
- Contribution from the Department of Chemistry, 1393 Brown Building, Purdue University, West Lafayette, Indiana 47907-1393
| | - Ian P. Rothwell
- Contribution from the Department of Chemistry, 1393 Brown Building, Purdue University, West Lafayette, Indiana 47907-1393
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26
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Okamoto S, Iwakubo M, Kobayashi K, Sato F. Efficient and Practical Method for Synthesizing N-Heterocyclic Compounds Using Intramolecular Nucleophilic Acyl Substitution Reactions Mediated by Ti(O-i-Pr)4/2i-PrMgX Reagent. Synthesis of Quinolones, Pyrroles, Indoles, and Optically Active N-Heterocycles Including Allopumiliotoxin Alkaloid 267A. J Am Chem Soc 1997. [DOI: 10.1021/ja970810j] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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27
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Takayama Y, Gao Y, Sato F. Titan(II)-vermittelte intramolekulare Cyclisierungen von 2,7- oder 2,8-doppeltungesättigten Carbonaten und Acetaten — eine effiziente Synthese von Cycloalkanen. Angew Chem Int Ed Engl 1997. [DOI: 10.1002/ange.19971090818] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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28
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Syntheses and structural characterization of 2,2′-methylene-bis(6-t-butyl-4-methyl-phenoxide complexes of titanium, zirconium and tantalum. Polyhedron 1997. [DOI: 10.1016/s0277-5387(97)00058-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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29
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Okamoto S, Sato H, Sato F. Highly efficient synthesis of alka-1,3-dien-2-yltitanium compounds from alka-2,3-dienyl carbonates. A new, practical synthesis of 1,3-dienes and 2-iodo-1,3-dienes. Tetrahedron Lett 1996. [DOI: 10.1016/s0040-4039(96)02126-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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30
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Yoshida Y, Okamoto S, Sato F. Intramolecular Nucleophilic Acyl Substitution Reaction of 3,4-Alkadienyl Carbonates Mediated by Ti(O-i-Pr)(4)/2 i-PrMgCl Reagent. Efficient Synthesis of Optically Active beta,gamma-Unsaturated Esters with an alpha-Substituent. J Org Chem 1996; 61:7826-7831. [PMID: 11667740 DOI: 10.1021/jo961401t] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Treatment of 3,4-alkadienyl carbonates 2a-i with a low-valent titanium reagent diisopropoxy(eta(2)-propene)titanium (1), readily generated by the reaction of Ti(O-i-Pr)(4) with 2 i-PrMgCl, resulted in an intramolecular nucleophilic acyl substitution (INAS) reaction to afford vinyltitanium compounds 3 which, in turn, reacted with H(3)O(+), D(2)O, or iodine to give alpha-substituted beta,gamma-unsaturated esters 4 in good to excellent yields. The olefin moiety of the hydrolysis product 4 has (Z)-geometry mainly except for 4h. Starting from chiral 2f or 2g, the reaction proceeded stereospecifically to give optically active alpha-substituted beta,gamma-unsaturated ester 4f or 4g having (Z)-olefin geometry exclusively.
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Affiliation(s)
- Yukio Yoshida
- Department of Biomolecular Engineering, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226, Japan
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31
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Gao Y, Shirai M, Sato F. Synthesis of substituted pyrroles from an alkyne, an imine and carbon monoxide via an organotitanium intermediate. Tetrahedron Lett 1996. [DOI: 10.1016/0040-4039(96)01778-9] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Kasatkin A, Yamazaki T, Sato F. Reaktion von β,γ- und γ,δ-ungesättigten Estern mit dem Ti(OiPr)4/2iPrMgCl-Reagens: Bildung von β-titanierten Estern, β-titanierten Cyclobutanonen oder Acyltitan-Verbindungen. Angew Chem Int Ed Engl 1996. [DOI: 10.1002/ange.19961081721] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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33
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Yamashita K, Sato F. Highly efficient synthesis of allylic alcohols having an α-alkoxyalkyl group at their β-position via regioselective addition reaction of titanium-propargyl ether complexes with carbonyl compounds. Tetrahedron Lett 1996. [DOI: 10.1016/0040-4039(96)01647-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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34
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Lee J, Kim YG, Bae JG, Cha JK. A New Preparation of Cyclopropanone Hemiketals by Reductive Coupling of Terminal Olefins with Ethylene Carbonate. J Org Chem 1996. [DOI: 10.1021/jo960856f] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jinhwa Lee
- Department of Chemistry, University of Alabama, Tuscaloosa, Alabama 35487, and Department of Chemical Technology, Seoul National University, Seoul, Korea
| | - Young Gyu Kim
- Department of Chemistry, University of Alabama, Tuscaloosa, Alabama 35487, and Department of Chemical Technology, Seoul National University, Seoul, Korea
| | - Jae Gwang Bae
- Department of Chemistry, University of Alabama, Tuscaloosa, Alabama 35487, and Department of Chemical Technology, Seoul National University, Seoul, Korea
| | - Jin Kun Cha
- Department of Chemistry, University of Alabama, Tuscaloosa, Alabama 35487, and Department of Chemical Technology, Seoul National University, Seoul, Korea
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