1
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Kobayashi Y. Alkyl Pyridinesulfonates and Allylic Pyridinecarboxylates, New Boosters for the Substitution at Secondary Carbons. HETEROCYCLES 2020. [DOI: 10.3987/rev-19-919] [Citation(s) in RCA: 2] [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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Han JL, Qin Y, Zhao D. C(sp3)–H Bond Arylation and Amidation of Si-Bound Methyl Group via Directing Group Strategy. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00771] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jie-Lian Han
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Ying Qin
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Dongbing Zhao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
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3
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Nelson DJ, Cazin CSJ, Nolan SP. Grignard Reagents and Palladium. PHYSICAL SCIENCES REVIEWS 2018. [DOI: 10.1515/psr-2016-0018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- David J. Nelson
- WestCHEM Department of Pure & Applied Chemistry University of Strathclyde 295 Cathedral Street Glasgow Lanarkshire , G1 1XL UK
| | - Catherine S. J. Cazin
- EaStCHEM School of Chemistry University of St Andrews Purdie Building North Haugh St Andrews Fife , KY16 9ST UK
| | - Steven P. Nolan
- Department of Inorganic and Physical Chemistry Ghent University Krijgslaan 281 - S3, 9000 Gent , Belgium
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4
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Hanna LE, Harris MR, Domon K, Jarvo ER. Nickel-Catalyzed Hydrogenolysis and Conjugate Addition of 2-(Hydroxymethyl)pyridines via Organozinc Intermediates. Org Lett 2017; 19:6304-6307. [PMID: 29135261 DOI: 10.1021/acs.orglett.7b03049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
2-Hydroxymethylpyridines undergo nickel-catalyzed hydrogenolysis upon activation with a chlorophosphate. Reactions employ diethylzinc and are proposed to proceed through secondary benzylzinc reagents. Quenching with deuteromethanol provides straightforward incorporation of a deuterium label in the benzylic position. Intramolecular conjugate additions with α,β-unsaturated esters are also demonstrated and support the intermediacy of a benzylzinc complex.
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Affiliation(s)
- Luke E Hanna
- Department of Chemistry, University of California , Irvine, California 92697-2025, United States
| | - Michael R Harris
- Department of Chemistry, University of California , Irvine, California 92697-2025, United States
| | - Kenji Domon
- Department of Chemistry, University of California , Irvine, California 92697-2025, United States
| | - Elizabeth R Jarvo
- Department of Chemistry, University of California , Irvine, California 92697-2025, United States
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5
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Pd‐Catalyzed C−H Alkylation of Arenes Using PyrDipSi, a Transformable and Removable Silicon‐Tethered Directing Group. Chemistry 2016; 22:11201-4. [DOI: 10.1002/chem.201602513] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Indexed: 11/07/2022]
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6
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Moghimi S, Mahdavi M, Shafiee A, Foroumadi A. Transition-Metal-Catalyzed Acyloxylation: Activation of C(sp2)-H and C(sp3)-H Bonds. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600138] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Setareh Moghimi
- Department of Medicinal Chemistry; Faculty of Pharmacy and Pharmaceutical Sciences Research Center; Tehran University of Medical Sciences; Tehran Iran
| | - Mohammad Mahdavi
- Drug Design and Development Research Center; Tehran University of Medical Sciences; Tehran Iran
| | - Abbas Shafiee
- Department of Medicinal Chemistry; Faculty of Pharmacy and Pharmaceutical Sciences Research Center; Tehran University of Medical Sciences; Tehran Iran
| | - Alireza Foroumadi
- Department of Medicinal Chemistry; Faculty of Pharmacy and Pharmaceutical Sciences Research Center; Tehran University of Medical Sciences; Tehran Iran
- Drug Design and Development Research Center; Tehran University of Medical Sciences; Tehran Iran
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7
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Sarkar D, Gulevich AV, Melkonyan FS, Gevorgyan V. Synthesis of Multisubstituted Arenes via PyrDipSi-Directed Unsymmetrical Iterative C–H Functionalizations. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01724] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dhruba Sarkar
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, United States
| | - Anton V. Gulevich
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, United States
| | - Ferdinand S. Melkonyan
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, United States
| | - Vladimir Gevorgyan
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, United States
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8
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Kinuta H, Tobisu M, Chatani N. Rhodium-Catalyzed Borylation of Aryl 2-Pyridyl Ethers through Cleavage of the Carbon–Oxygen Bond: Borylative Removal of the Directing Group. J Am Chem Soc 2015; 137:1593-600. [DOI: 10.1021/ja511622e] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Hirotaka Kinuta
- Department
of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Mamoru Tobisu
- Center
for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871, Japan
| | - Naoto Chatani
- Department
of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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9
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Yang J, Li P, Zhang Y, Wang L. Dinuclear NHC–palladium complexes containing phosphine spacers: synthesis, X-ray structures and their catalytic activities towards the Hiyama coupling reaction. Dalton Trans 2014; 43:7166-75. [DOI: 10.1039/c4dt00180j] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Six dinuclear N-heterocyclic carbene–palladium complexes were synthesized from [Pd(μ-Cl)(Cl)(NHC)]2 and Ph2P(CH2)nPPh2, and their catalytic activities towards the Hiyama reaction were investigated.
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Affiliation(s)
- Jin Yang
- Department of Chemistry
- Huaibei Normal University
- Huaibei, PR China
| | - Pinhua Li
- Department of Chemistry
- Huaibei Normal University
- Huaibei, PR China
| | - Yicheng Zhang
- Department of Chemistry
- Huaibei Normal University
- Huaibei, PR China
| | - Lei Wang
- Department of Chemistry
- Huaibei Normal University
- Huaibei, PR China
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
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10
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Sarkar D, Melkonyan FS, Gulevich AV, Gevorgyan V. Twofold unsymmetrical C-H functionalization of PyrDipSi-substituted arenes: a general method for the synthesis of substituted meta-halophenols. Angew Chem Int Ed Engl 2013; 52:10800-4. [PMID: 24038769 PMCID: PMC4105268 DOI: 10.1002/anie.201304884] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Indexed: 11/07/2022]
Abstract
Two-fold unsymmetrical functionalization of arenes, which includes sequential halogenation/oxygenation reactions, has been developed. This transformation allows for a general and efficient synthesis of substituted meta -halophenols from simple aryl iodides. Importantly, the PyrDipSi (2-diisopropylsilylpyrimidine) group can be easily removed or efficiently converted into valuable functionalities.
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Affiliation(s)
- Dhruba Sarkar
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St, Rm 4500, Chicago, IL 60607 (USA), Fax: (+1) 312-355-0836, Homepage: http://www.chem.uic.edu/vggroup
| | - Ferdinand S. Melkonyan
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St, Rm 4500, Chicago, IL 60607 (USA), Fax: (+1) 312-355-0836, Homepage: http://www.chem.uic.edu/vggroup
| | - Anton V. Gulevich
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St, Rm 4500, Chicago, IL 60607 (USA), Fax: (+1) 312-355-0836, Homepage: http://www.chem.uic.edu/vggroup
| | - Vladimir Gevorgyan
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St, Rm 4500, Chicago, IL 60607 (USA), Fax: (+1) 312-355-0836, Homepage: http://www.chem.uic.edu/vggroup
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11
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Sarkar D, Melkonyan FS, Gulevich AV, Gevorgyan V. Twofold Unsymmetrical CH Functionalization of PyrDipSi-Substituted Arenes: A General Method for the Synthesis of Substitutedmeta-Halophenols. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201304884] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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12
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Gulevich AV, Melkonyan FS, Sarkar D, Gevorgyan V. Double-fold C-H oxygenation of arenes using PyrDipSi: a general and efficient traceless/modifiable silicon-tethered directing group. J Am Chem Soc 2012; 134:5528-31. [PMID: 22414133 PMCID: PMC3371766 DOI: 10.1021/ja3010545] [Citation(s) in RCA: 110] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The efficient Pd-catalyzed double-fold C-H oxygenation of arenes into resorcinols using the newly developed 2-pyrimidyldiisopropylsilyl (PyrDipSi) directing group is described. Its use allows for the sequential introduction of OAc and OPiv groups in a one-pot manner to produce orthogonally protected resorcinol derivatives. The PyrDipSi group is superior to the previously developed 2-pyridyldiisopropylsilyl (PyDipSi) group, as it is efficient for monooxygenation of ortho-substituted arenes. Notably, the PyrDipSi group can be easily installed into arene molecules and can be easily removed or modified after the oxygenation reaction.
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Affiliation(s)
| | | | | | - Vladimir Gevorgyan
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, United Stated
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13
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Matsumoto K, Shindo M. Palladium-Catalyzed Fluoride-Free Cross-Coupling of Intramolecularly Activated Alkenylsilanes and Alkenylgermanes: Synthesis of Tamoxifen as a Synthetic Application. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201100627] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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14
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Sore HF, Galloway WRJD, Spring DR. Palladium-catalysed cross-coupling of organosilicon reagents. Chem Soc Rev 2011; 41:1845-66. [PMID: 22048071 DOI: 10.1039/c1cs15181a] [Citation(s) in RCA: 287] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The palladium catalysed cross-coupling of organosilicon reagents with organo halides and pseudo-halides has developed over the past 30 years into an efficient and attractive carbon-carbon bond forming strategy. Extensive research within this field to expand and diversify on the scope of the organosilicon coupling reaction will continue to promote its use in the synthesis of biologically and pharmaceutically important organic molecules. The recent advances made within this area are explored in this critical review (199 references).
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Affiliation(s)
- Hannah F Sore
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
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15
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Lim DSW, Anderson EA. One-step preparation of functionalized (E)-vinylsilanes from aldehydes. Org Lett 2011; 13:4806-9. [PMID: 21838273 DOI: 10.1021/ol201833u] [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
Functionalized (E)-vinylsilanes have been prepared in one step from a wide range of aldehydes, via a chromium(II)-mediated olefination with novel dihalomethylsilane reagents, in moderate to excellent yields and with excellent stereoselectivity.
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Affiliation(s)
- Diane S W Lim
- Chemical Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
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16
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Belen’kii L, Gramenitskaya V, Evdokimenkova Y. The Literature of Heterocyclic Chemistry, Part X, 2005–2007. ADVANCES IN HETEROCYCLIC CHEMISTRY 2011. [DOI: 10.1016/b978-0-12-385464-3.00001-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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17
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Fortman GC, Nolan SP. N-Heterocyclic carbene (NHC) ligands and palladium in homogeneous cross-coupling catalysis: a perfect union. Chem Soc Rev 2011; 40:5151-69. [PMID: 21731956 DOI: 10.1039/c1cs15088j] [Citation(s) in RCA: 967] [Impact Index Per Article: 74.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- George C Fortman
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, Scotland, UK
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18
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Suzuki–Miyaura cross-coupling of aryl chlorides catalyzed by palladium precatalysts of N/O-functionalized pyrazolyl ligands. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2010.04.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Sore HF, Blackwell DT, MacDonald SJF, Spring DR. Diversity-Oriented Synthesis of Disubstituted Alkenes Using Masked Silanols. Org Lett 2010; 12:2806-9. [DOI: 10.1021/ol100895d] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hannah F. Sore
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK CB2 1EW
| | - David T. Blackwell
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK CB2 1EW
| | - Simon J. F. MacDonald
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK CB2 1EW
| | - David R. Spring
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK CB2 1EW
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20
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Mothana S, Grassot JM, Hall D. Multistep Phase-Switch Synthesis by Using Liquid-Liquid Partitioning of Boronic Acids: Productive Tags with an Expanded Repertoire of Compatible Reactions. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200906710] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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21
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Mothana S, Grassot JM, Hall DG. Multistep phase-switch synthesis by using liquid-liquid partitioning of boronic acids: productive tags with an expanded repertoire of compatible reactions. Angew Chem Int Ed Engl 2010; 49:2883-7. [PMID: 20146294 DOI: 10.1002/anie.200906710] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2009] [Indexed: 11/11/2022]
Abstract
Tagging along: a system for phase-switch synthesis has been developed. The boronic acid functionality is used as a phase tag that complexes to sorbitol and facilitates compound transfer from an organic solvent to water at high pH. The phase tag can then be used in a productive reaction step to generate targeted products, thereby eliminating purification by silica gel chromatography.
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Affiliation(s)
- Sam Mothana
- Department of Chemistry, Gunning-Lemieux Chemistry Centre, University of Alberta, Edmonton, Canada
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22
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John A, Ghosh P. Fascinating frontiers of N/O-functionalized N-heterocyclic carbene chemistry: from chemical catalysis to biomedical applications. Dalton Trans 2010; 39:7183-206. [DOI: 10.1039/c002475a] [Citation(s) in RCA: 164] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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23
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John A, Shaikh MM, Butcher RJ, Ghosh P. Highly efficient palladium precatalysts of homoscorpionate bispyrazolyl ligands for the more challenging Suzuki–Miyaura cross-coupling of aryl chlorides. Dalton Trans 2010; 39:7353-63. [DOI: 10.1039/c003174g] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Dash C, Shaikh MM, Ghosh P. Fluoride-Free Hiyama and Copper- and Amine-Free Sonogashira Coupling in Air in a Mixed Aqueous Medium by a Series of PEPPSI-Themed Precatalysts. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900115] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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Walkowiak J, Jankowska-Wajda M, Marciniec B. A New Catalytic Route to Boryl- and Borylsilyl-Substituted Buta-1,3-dienes. Chemistry 2008; 14:6679-86. [DOI: 10.1002/chem.200800518] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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26
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Han H, Park SB, Kim SK, Chang S. Copper−Nitrenoid Formation and Transfer in Catalytic Olefin Aziridination Utilizing Chelating 2-Pyridylsulfonyl Moieties. J Org Chem 2008; 73:2862-70. [DOI: 10.1021/jo800134j] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hoon Han
- Center for Molecular Design and Synthesis (CMDS), Department of Chemistry and School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology (KAIST), Daejon 305-701, Korea
| | - Seong Byeong Park
- Center for Molecular Design and Synthesis (CMDS), Department of Chemistry and School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology (KAIST), Daejon 305-701, Korea
| | - Sang Kyu Kim
- Center for Molecular Design and Synthesis (CMDS), Department of Chemistry and School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology (KAIST), Daejon 305-701, Korea
| | - Sukbok Chang
- Center for Molecular Design and Synthesis (CMDS), Department of Chemistry and School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology (KAIST), Daejon 305-701, Korea
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27
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Mothana S, Chahal N, Vanneste S, Hall DG. Phase-Switch Synthesis with Boronic Acids as Productive Tags. ACTA ACUST UNITED AC 2007; 9:193-6. [PMID: 17348725 DOI: 10.1021/cc060149s] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sam Mothana
- Department of Chemistry, Gunning-Lemieux Chemistry Centre, University of Alberta, Edmonton, Alberta, T6G 2G2 Canada
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28
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Spivey AC, Gripton CJG, Hannah JP, Tseng CC, de Fraine P, Parr NJ, Scicinski JJ. The development of a ‘safety-catch’ arylgermane for biaryl synthesis by palladium-catalysed germyl-stille cross-coupling. Appl Organomet Chem 2007. [DOI: 10.1002/aoc.1270] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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29
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Itami K, Yoshida JI. Multisubstituted Olefins: Platform Synthesis and Applications to Materials Science and Pharmaceutical Chemistry. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2006. [DOI: 10.1246/bcsj.79.811] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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30
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El Bakkari M, Fronton B, Luguya R, Vincent JM. Reversible fluorous phase-switching of pyridyl-tagged porphyrins: Application to the sensing of histamine in water. J Fluor Chem 2006. [DOI: 10.1016/j.jfluchem.2005.11.019] [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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31
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Organometallic Complexes of the η2 (N, C)-Coordinated Derivatives of Pyridine. ADVANCES IN HETEROCYCLIC CHEMISTRY 2005. [DOI: 10.1016/s0065-2725(04)88002-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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32
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Kamei T, Itami K, Yoshida JI. Catalytic Carbometalation/Cross-Coupling Sequence across Alkynyl(2-pyridyl)silanes Leading to a Diversity-Oriented Synthesis of Tamoxifen-Type Tetrasubstituted Olefins. Adv Synth Catal 2004. [DOI: 10.1002/adsc.200404220] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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33
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Anderson JC, Munday RH. Vinyldimethylphenylsilanes as Safety Catch Silanols in Fluoride-Free Palladium-Catalyzed Cross-Coupling Reactions. J Org Chem 2004; 69:8971-4. [PMID: 15575787 DOI: 10.1021/jo048746t] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of five structurally diverse vinyldimethylphenylsilanes have been shown to undergo a fluoride-free one-pot palladium-catalyzed cross-coupling reaction with phenyl iodide to give ipso coupled products in 62-86% yield. The limitations of this present protocol lie in the activation of Si-Ph vs protodesilylation by KOTMS/18-C-6, which seems sensitive to the sterics of cis substituents, but not geminal substituents.
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Affiliation(s)
- James C Anderson
- School of Chemistry, University of Nottingham, Nottingham, NG7 2RD, United Kingdom.
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34
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Itami K, Terakawa K, Yoshida JI, Kajimoto O. The Carbon–Silicon Bond Cleavage of Organosilicon Compounds in Supercritical Water. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2004. [DOI: 10.1246/bcsj.77.2071] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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35
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Boñaga LV, Krafft ME. When the Pauson–Khand and Pauson–Khand type reactions go awry: a plethora of unexpected results. Tetrahedron 2004. [DOI: 10.1016/j.tet.2004.06.072] [Citation(s) in RCA: 159] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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36
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Han H, Bae I, Yoo EJ, Lee J, Do Y, Chang S. Notable Coordination Effects of 2-Pyridinesulfonamides Leading to Efficient Aziridination and Selective Aziridine Ring Opening. Org Lett 2004; 6:4109-12. [PMID: 15496111 DOI: 10.1021/ol0481784] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] We have developed, on the basis of a chelation-strategy, an efficient copper-catalyzed aziridination protocol with the use of 5-methyl-2-pyridinesulfonamide and PhI(OAc)(2). The reaction proceeds smoothly under mild conditions to give aziridines in moderate to good yields in the absence of external ligands or bases. The coordination-assisted approach offers the additional benefits that efficient deprotection of the N-substituent and selective aziridine ring-opening are effectively achieved.
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Affiliation(s)
- Hoon Han
- Center for Molecular Design and Synthesis, Department of Chemistry and School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology (KAIST), Daejon 305-701, Republic of Korea
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Chinchilla R, Nájera C, Yus M. Metalated Heterocycles and Their Applications in Synthetic Organic Chemistry. Chem Rev 2004; 104:2667-722. [PMID: 15137804 DOI: 10.1021/cr020101a] [Citation(s) in RCA: 272] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rafael Chinchilla
- Departamento de Química Orgánica and Instituto de Síntesis Orgánica, Facultad de Ciencias, Universidad de Alicante, Apartado 99, 03080 Alicante, Spain.
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Itami K, Kamei T, Yoshida JI. Diversity-Oriented Synthesis of Tamoxifen-type Tetrasubstituted Olefins. J Am Chem Soc 2003; 125:14670-1. [PMID: 14640618 DOI: 10.1021/ja037566i] [Citation(s) in RCA: 185] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A general synthetic scheme for tamoxifen-type tetrasubstituted olefins based on the novel Cu-catalyzed carbomagnesation across alkynyl(2-pyridyl)silane has been developed. A wide array of electronically and structurally diverse tetrasubstituted olefins can be prepared in a regiocontrolled, stereocontrolled, and diversity-oriented manner. Noteworthy features are that (i) the three aryl groups, which are believed to be important (essential) for anti-estrogenic activity, can be varied at will because they all stem from readily available aryl iodides, and (ii) any stereo- and regioisomers can, in principle, be prepared by simply changing the applying order of aryl iodides into the sequence.
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Affiliation(s)
- Kenichiro Itami
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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Abstract
The representative examples of beneficial effects of hydrophilic groups in aqueous organic reactions are described, including the Diels-Alder reactions, hetero Diels-Alder reactions, Claisen rearrangement, radical reactions, and transition metal-catalyzed reactions. Although the low solubility of organic molecules in water has been a bane in aqueous organic reactions, the incorporation of hydrophilic groups into the substrate structure can overcome the solubility problem and at the same time enhance the hydrophobic effect. In some cases, interesting micellar effects are observed because of the amphiphilic natures of such molecules. The emerging concept of "removable hydrophilic group," in which the solubility problems have been alleviated, yet the initial product can still be transformed into a variety of products with the removal of the hydrophilic groups, is also described.
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Affiliation(s)
- Kenichiro Itami
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Yoshida, Kyoto 606-8501, Japan
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Itami K, Kamei T, Mineno M, Yoshida JI. AgOAc-Catalyzed Aldehyde Allylation Using Allyldimethyl(2-pyridyl)silane. CHEM LETT 2002. [DOI: 10.1246/cl.2002.1084] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Itami K, Mineno M, Kamei T, Yoshida JI. A general and straightforward route toward diarylmethanes. Integrated cross-coupling reactions using (2-pyridyl)silylmethylstannane as an air-stable, storable, and versatile coupling platform. Org Lett 2002; 4:3635-8. [PMID: 12375906 DOI: 10.1021/ol026573t] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] Pharmacologically important diarylmethane structures have been prepared in a straightforward manner through sequentially integrated Pd-catalyzed cross-coupling reactions. (2-Pyridyl)silylmethylstannane was found to be an air-stable, storable, and versatile coupling platform in this synthetic strategy.
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Affiliation(s)
- Kenichiro Itami
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Yoshida, Kyoto 606-8501, Japan
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