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Huwyler N, Radkowski K, Rummelt SM, Fürstner A. Two Enabling Strategies for the Stereoselective Conversion of Internal Alkynes into Trisubstituted Alkenes. Chemistry 2017; 23:12412-12419. [DOI: 10.1002/chem.201702470] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Indexed: 12/11/2022]
Affiliation(s)
- Nikolas Huwyler
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Karin Radkowski
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | | | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
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2
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Cheng B, Xu J. Mechanistic insight into the thermal 1,3-chlorine migrations of N-chloroacetanilides under neutral conditions. PHOSPHORUS SULFUR 2017. [DOI: 10.1080/10426507.2016.1268137] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Baoxiang Cheng
- State Key Laboratory of Chemical Engineering Resource, Department of Organic Chemistry, Faculty of Science, Beijing University of Chemical Technology, Beijing, P. R. China
| | - Jiaxi Xu
- State Key Laboratory of Chemical Engineering Resource, Department of Organic Chemistry, Faculty of Science, Beijing University of Chemical Technology, Beijing, P. R. China
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3
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Anderson JC, Davies EA. Diastereoselective synthesis of substituted prolines via 5-endo-trig cyclisations of aza-[2,3]-Wittig sigmatropic rearrangement products. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.04.095] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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4
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Helm MD, Mayer P, Knochel P. Preparation of silyl substituted crotylzinc reagents and their highly diastereoselective addition to carbonyl compounds. Chem Commun (Camb) 2008:1916-7. [PMID: 18401517 DOI: 10.1039/b802157k] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Readily prepared beta-silyl substituted crotylzinc reagents undergo highly selective allylation of carbonyl compounds leading to syn-homoallylic alcohols.
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Affiliation(s)
- Matthew D Helm
- Ludwig-Maximilians-Universität München, Department Chemie und Biochemie, Butenandtstr. 5-13, Haus F, D-81377, München, Germany
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Krief A. Synthesis and synthetic applications of 1-metallo-1-selenocyclopropanes and -cyclobutanes and related 1-metallo-1-silylcyclopropanes. Top Curr Chem (Cham) 2005. [DOI: 10.1007/3-540-16662-9_3] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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7
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Koketsu M, Kanoh M, Ishihara H. Reactions of 2-Pentynyl trimethylsilylethynyl selenides with primary amines viaallenyl selenoketene. J Heterocycl Chem 2005. [DOI: 10.1002/jhet.5570420219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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8
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Barluenga J, Tomás M, Ballesteros A, Gotor V, Krüger C, Tsay YH. A Facile Synthesis of a New Class of Eight-Membered Heterocycles from 1-Azabutadienes. ACTA ACUST UNITED AC 2003. [DOI: 10.1002/anie.198601811] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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9
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Affiliation(s)
- Brian Halton
- School of Chemical & Physical Sciences, Victoria University of Wellington, P. O. Box 600, Wellington, New Zealand.
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10
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Gal JF, Decouzon M, Maria PC, González AI, Mó O, Yáñez M, El Chaouch S, Guillemin JC. Acidity trends in alpha,beta-unsaturated alkanes, silanes, germanes, and stannanes. J Am Chem Soc 2001; 123:6353-9. [PMID: 11427060 DOI: 10.1021/ja004079j] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The gas-phase acidity of ethyl-, vinyl-, ethynyl-, and phenyl-substituted silanes, germanes, and stannanes has been measured by means of FT-ICR techniques. The effect of unsaturation on the intrinsic acidity of these compounds and the corresponding hydrocarbons was analyzed through the use of G2 ab initio and DFT calculations. In this way, it was possible to get a general picture of the acidity trends within group 14. As expected, the acid strength increases down the group, although the acidity differences between germanium and tin derivatives are already rather small. As has been found before for amines, phosphines, and arsines, the carbon, silicon, germanium, and tin alpha,beta-unsaturated compounds are stronger acids( )than their saturated analogues. The acidifying effect of unsaturation is much larger for carbon than for Si-, Ge-, and Sn-containing compounds. The allyl anion is better stabilized by resonance than its Si, Ge, and Sn analogues, [CH(2)(-)(delta)--CH(+)(delta)(') --CH(2)(-)(delta)](-) vs [CH(2)(-)(delta)()II = CH(-)(delta)()III - XH(2)(-)(delta)()IV](-) (X = Si, Ge, Sn). The enhanced acid strength of unsaturated compounds is essentially due to a greater stabilization of the anion with respect to the neutral, because the electronegativity of the alpha,beta-unsaturated carbon group increases with its degree of unsaturation. The phenyl derivatives are systematically weaker acids than the corresponding ethynyl derivatives by 15-20 kJ mol(-)(1). Experimentally, toluene acidity is very close to that of propyne, because the deprotonation of propyne takes place preferentially at the =CH group rather than at the -CH(3) group.
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Affiliation(s)
- J F Gal
- Chimie des Matériaux Organiques et Métalliques, Université de Nice-Sophia Antipolis, Parc Valrose, 06108 Nice Cedex 2, France
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11
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Cuadrado P, González-Nogal AM, Sánchez A. Regiospecific and stereoselective synthesis of functionalized and differently metalated alkenes by silyl- or stannylcupration of metalated acetylenes. J Org Chem 2001; 66:1961-5. [PMID: 11300888 DOI: 10.1021/jo0010983] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Differently metalated vinylcuprate intermediates resulting from silyl- or stannylcupration of silyl- and tin-containing acetylenes reacted with a range of electrophiles, including chlorosilanes and chlorostannanes, affording regio- and stereodefined differently metalated vic and gem silyl- and tin-trisubstituted alkenes. Some of these functionalized polymetalated olefins are interesting synthons in organic chemistry.
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Affiliation(s)
- P Cuadrado
- Departamento de Química Orgánica, Universidad de Valladolid, 47011-Valladolid, Spain
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13
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Abstract
The first elimination reactions of silyl enol ethers to lithiated allenes are reported. These reactions allow a direct transformation of readily available silyl enol ethers into functionalized allenes. The action of three to four equivalents of lithium diisopropylamide (LDA) on silyl enol ethers results in the formation of lithiated allenes by initial allylic lithiation, subsequent elimination of a lithium silanolate, and finally, lithiation of the allene thus formed. Starting with amide-derived silyl imino ethers, lithiated ketenimines are obtained. A variety of reactions of the lithiated allenes with electrophiles (chlorosilanes, trimethylchlorostannane, dimethyl sulfate and ethanol) were carried out. Elimination of silanolate is observed only for substrates that contain the hindered SiMe2tBu or Si(iPr)3 moiety, but not for the SiMe3 group. The reaction of 1,1-dilithio-3,3-diphenylallene with ketones provides a convenient access to novel 1,1-di(hydroxymethyl)allenes which undergo a domino Nazarov-Friedel-Crafts reaction upon treatment with p-toluenesulfonic acid.
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Affiliation(s)
- P Langer
- Institut für Organische Chemie der Georg-August-Universität Göttingen, Germany.
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14
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Araki Y, Konoike T. A new route to cumulenes by stannylation-deoxystannylation of propargylic alcohols. Application to synthesis of conjugated enyne[3]cumulene as a model compound of neocarzinostatin chromophore. Tetrahedron Lett 1998. [DOI: 10.1016/s0040-4039(98)01117-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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15
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Majetich G, Liu S, Fang J, Siesel D, Zhang Y. Use of Conjugated Dienones in Cyclialkylations: Total Syntheses of Arucadiol, 1,2-Didehydromiltirone, (±)-Hinokione, (±)-Nimbidiol, Sageone, and Miltirone. J Org Chem 1997. [DOI: 10.1021/jo970570q] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- George Majetich
- Department of Chemistry, The University of Georgia, Athens, Georgia 30602
| | - Shuang Liu
- Department of Chemistry, The University of Georgia, Athens, Georgia 30602
| | - Jing Fang
- Department of Chemistry, The University of Georgia, Athens, Georgia 30602
| | - David Siesel
- Department of Chemistry, The University of Georgia, Athens, Georgia 30602
| | - Yong Zhang
- Department of Chemistry, The University of Georgia, Athens, Georgia 30602
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16
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Lukevics E, Dirnens V, Kemme A, Popelis J. Silyl isoxazolines-2: synthesis, structure and properties. J Organomet Chem 1996. [DOI: 10.1016/0022-328x(96)06358-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Anderson JC, Siddons DC, Smith SC, Swarbrick ME. The Silicon-Assisted Aza-[2,3]-Wittig Sigmatropic Rearrangement. J Org Chem 1996; 61:4820-4823. [PMID: 11667420 DOI: 10.1021/jo960329w] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- James C. Anderson
- Department of Chemistry, University of Sheffield, Sheffield, S3 7HF UK and Zeneca Agrochemicals, Jealott's Hill Research Station, Bracknell, Berkshire, RG42 6ET, UK
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18
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Concise allene synthesis from propargylic alcohols by hydrostannation and deoxystannylation: A new route to chiral allenes. Tetrahedron Lett 1992. [DOI: 10.1016/s0040-4039(00)61198-x] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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19
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Hodgson DM, Wells C. Regio- and stereo-selective reactions of trimethylsilyl-substituted allyl-chromium reagents with aldehydes. Tetrahedron Lett 1992. [DOI: 10.1016/s0040-4039(00)61279-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Influence of functional substitution of allyl halides on their ni(co)4 promoted carbonylative cycloaddition with acetylenes. Tetrahedron 1992. [DOI: 10.1016/s0040-4020(01)92256-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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An asymmetric hydrogen equivalent: use of the 1-naphthylphenylmethylsilyl group in the preparation of optically active allyl alcohols and (S) 1-phenyl-1,2-butadiene. Tetrahedron Lett 1988. [DOI: 10.1016/s0040-4039(00)80295-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Furin G, Vyazankina O, Gostevsky B, Vyazankin N. Tetrahedron report number 234 Synthetic aspects of the use of organosilicon compounds under nucleophilic catalysis conditions. Tetrahedron 1988. [DOI: 10.1016/s0040-4020(88)90008-7] [Citation(s) in RCA: 102] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Synthesis and synthetic applications of 1-donor substituted cyclopropanes with ethynyl, vinyl and carbonyl groups. Top Curr Chem (Cham) 1988. [DOI: 10.1007/bfb0111228] [Citation(s) in RCA: 66] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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24
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Shimizu N, Shibata F, Tsuno Y. Synthesis of (1-Halo-1-alkenyl)trimethylsilanes viagem-Trimethylsilylation of Vinyl Halides. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1987. [DOI: 10.1246/bcsj.60.777] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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25
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Anderson WK, Dabrah TT. A Simple Efficient Synthesis of 3-Pyrrolines Using A 1,3-Dipolar Cycloadoition Reaction with An Ylioe Generated by Thermal Desilylation of An α-Silylimminium Salt. SYNTHETIC COMMUN 1986. [DOI: 10.1080/00397918608078773] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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26
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Barluenga J, Tomás M, Ballesteros A, Gotor V, Krüger C, Tsay YH. Einfache Synthese einer neuen Klasse achtgliedriger Heterocyclen aus 1-Azabutadienen. Angew Chem Int Ed Engl 1986. [DOI: 10.1002/ange.19860980226] [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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27
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Knochel P, Normant J. Synthèse de diènes-1,4 fonctionnalisés par addition de zinciques allyliques fonctionnalisés sur des alcynes vrais et leur cyclisation en hétérocycles ou carbocycles. J Organomet Chem 1986. [DOI: 10.1016/s0022-328x(00)99569-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Takeda T, Suzuki K, Ohshima H, Fujiwara T. THE REACTION OF β-PHENYLSULFINYL β,γ-UNSATURATED ETHERS WITH TRIBUTYLSTANNYLLITHIUM. A NEW ROUTE TO SUBSTITUTED ALLENES. CHEM LETT 1985. [DOI: 10.1246/cl.1985.1249] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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31
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Knorr R, von Roman TF. Zur Konfigurationsstabilität von Vinyllithiumderivaten mit 1-Trimethylsilyl- und 1-Alkoxy-Substituenten. Angew Chem Int Ed Engl 1984. [DOI: 10.1002/ange.19840960507] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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32
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An efficient route to heteroarene-substituted vinyl- and allyl-silanes via palladium-phosphine complex catalyzed cross-coupling. Tetrahedron Lett 1984. [DOI: 10.1016/s0040-4039(01)91154-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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KnocKel P, Normant J. The Reactivity of 3-bromo-2-trimethylsilyl-1-propene towards electrophiles A short synthesis of 2-substituted-4-trimethylsilylfurans. Tetrahedron Lett 1984. [DOI: 10.1016/s0040-4039(01)81444-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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34
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Silicon-Fluorine. ACTA ACUST UNITED AC 1983. [DOI: 10.1007/978-3-642-68661-0_25] [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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35
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Mikami K, Kishi N, Nakai T. SIGMATROPIC REARRANGEMENTS OF 2-(TRIMETHYLSILYL)ALLYL ALCOHOL DERIVATIVES: FACILE AND GENERAL ENTRIES TO FUNCTIONALIZED VINYLSILANES. CHEM LETT 1982. [DOI: 10.1246/cl.1982.1643] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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37
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Stereoselective introduction of chiral centres in acylic precursors: a probe into the transition state for V5+-catalyzed t-butylhydroperoxide (TBHP) epoxidation of acyclic allylic alcohols and its synthetic implications. Tetrahedron Lett 1982. [DOI: 10.1016/s0040-4039(00)85899-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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38
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Tu-Hsin Y, Paquette LA. Silicon in organic synthesis. 16. A short synthesis of (+±)-α-vetispirene. Tetrahedron Lett 1982. [DOI: 10.1016/s0040-4039(00)87576-0] [Citation(s) in RCA: 26] [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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39
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Halazy S, Dumont W, Krief A. Synthesis and reactivity of α-lithio α-trimethylsilyl cyclopropanes and related derivatives. Tetrahedron Lett 1981. [DOI: 10.1016/s0040-4039(01)83027-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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40
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The use of SiC bond in synthesis: preparation of functionalised vinylsilanes from the allyltrimethylsilyl anion and some aspects of their reactivity. Tetrahedron Lett 1981. [DOI: 10.1016/s0040-4039(01)81806-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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41
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42
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M. Kaiser E. Lithium. J Organomet Chem 1979. [DOI: 10.1016/s0022-328x(00)82803-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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43
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Generation and reactions of 1-(arylsulfinyl)alkenyllithium reagents. Terminal allenes from 2-alkenyl aryl sulfoxides. Tetrahedron Lett 1978. [DOI: 10.1016/s0040-4039(01)95121-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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The synthesis of alkenes from carbonyl compounds and carbanions α to silicon. IX: stereoselective synthesis of tetrasubstituted alkenes. Tetrahedron Lett 1978. [DOI: 10.1016/s0040-4039(01)95250-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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