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Wang Z. Palladium-catalyzed asymmetric dearomative cyclization in natural product synthesis. Org Biomol Chem 2020; 18:4354-4370. [PMID: 32459269 DOI: 10.1039/d0ob00818d] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Asymmetric catalysis is a rapidly growing field in modern organic chemistry and has been indispensable for the synthesis of enantioenriched materials to meet demands from the academies to pharmaceutical industries. Asymmetric dearomative cyclization catalyzed by transition metals has been a hot research area in the last decade. Fascinated by its ability to construct sterically hindered quaternary stereogenic center(s) through dearomatization and simultaneously forging new ring structure(s) through cyclization, palladium-catalyzed asymmetric dearomative cyclization has been applied to the synthesis of structurally complicated natural products and it is increasingly prevalent in the literature. In particular, the resultant product from dearomative cyclization, which usually carries one or more unsaturated C-C bond(s), allows further functional group transformations. Previously reported applications of palladium-catalyzed asymmetric dearomative cyclization in natural product synthesis are presented here and discussed in depth.
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Affiliation(s)
- Zhuo Wang
- Southern University of Science and Technology, School of Medicine, Shenzhen, 518055, People's Republic of China.
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2
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Kobayashi A, Matsuzawa T, Hosoya T, Yoshida S. Sulfoxide synthesis from sulfinate esters under Pummerer-like conditions. Chem Commun (Camb) 2020; 56:5429-5432. [PMID: 32292973 DOI: 10.1039/d0cc02253e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A facile synthetic method for the preparation of allyl sulfoxides by S-allylation of sulfinate esters proceeds through sulfonium intermediates without [3,3]-sigmatropic rearrangement and further Pummerer-type reactions of the resulting allyl sulfoxides. On the basis of the plausible reaction mechanism involving sulfonium salt intermediates, S-alkynylation and S-arylation were also accomplished.
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Affiliation(s)
- Akihiro Kobayashi
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
| | - Tsubasa Matsuzawa
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
| | - Takamitsu Hosoya
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
| | - Suguru Yoshida
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
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Balasubramaniam S, Sankaran GS, Arumugan S. Application of chiral sulfoxides in asymmetric synthesis. ACTA ACUST UNITED AC 2018. [DOI: 10.15406/mojboc.2018.02.0062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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4
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Sutradhar M, Martins LM, Guedes da Silva MFC, Pombeiro AJ. Vanadium complexes: Recent progress in oxidation catalysis. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2015.01.020] [Citation(s) in RCA: 175] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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5
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González-Nogal AM, Cuadrado P. Epoxysilanes as substrates in regio- and stereo-specific synthesis of silylated γ-hydroxyphosphane oxides, precursors of stereodefined allylphosphane oxides. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.06.039] [Citation(s) in RCA: 7] [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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6
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Xiao Q, Jackson JJ, Basak A, Bowler JM, Miller BG, Zakarian A. Enantioselective synthesis of tatanans A-C and reinvestigation of their glucokinase-activating properties. Nat Chem 2013; 5:410-6. [PMID: 23609092 PMCID: PMC4126512 DOI: 10.1038/nchem.1597] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Accepted: 02/07/2013] [Indexed: 01/31/2023]
Abstract
The tatanans are members of a novel class of complex sesquilignan natural products recently isolated from the rhizomes of Acorus tatarinowii Schott plants. Tatanans A, B and C have previously been reported to have potent glucokinase-activating properties that exceed the in vitro activity of known synthetic antidiabetic agents. Here, using a series of sequential [3,3]-sigmatropic rearrangements, we report the total synthesis of tatanan A in 13 steps and 13% overall yield. We also complete a concise enantioselective total synthesis of more complex, atropisomeric tatanans B and C via a distinct convergent strategy based on a palladium-catalysed diastereotopic aromatic group differentiation (12 steps, 4% and 8% overall yield, respectively). A plausible biosynthetic relationship between acyclic tatanan A and spirocyclic tatanans B and C is proposed and probed experimentally. With sufficient quantities of the natural products in hand, we undertake a detailed functional characterization of the biological activities of tatanans A-C. Contrary to previous reports, our assays utilizing pure recombinant human enzyme demonstrate that tatanans do not function as allosteric activators of glucokinase.
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Affiliation(s)
- Qing Xiao
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA
| | - Jeffrey J. Jackson
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA
| | - Ashok Basak
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA
| | - Joseph M. Bowler
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, USA
| | - Brian G. Miller
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, USA
| | - Armen Zakarian
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA
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Hafidh A, Baccar EB. Action des Enamines Sur Les Allenes Phosphores: Synthese de 1-( N -morpholino ou N -pyrrolidino)-phosphomethylenbicycloalcanes. PHOSPHORUS SULFUR 2010. [DOI: 10.1080/10426500210669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Afifa Hafidh
- a Institut Préparatoire aux Etudes d'Ingénieurs de Tunis , 2 rue Jawaher lel Nehrou, Montfleury, Tunis, 1008, Tunisie
| | - et Belgacem Baccar
- b Laboratoire de Synthèse Organique, Faculté des Sciences , Campus Universitaire , Tunis, El Manar, 1060, Tunisie
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9
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Fustero S, Catalán S, Sánchez-Roselló M, Simón-Fuentes A, del Pozo C. Tandem Asymmetric Michael Reaction−Intramolecular Michael Addition. An Easy Entry to Chiral Fluorinated 1,4-Dihydropyridines. Org Lett 2010; 12:3484-7. [PMID: 20617822 DOI: 10.1021/ol101318t] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Santos Fustero
- Departamento de Química Orgánica, Universidad de Valencia, E-46100 Burjassot, Spain, and Laboratorio de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, E-46012 Valencia, Spain
| | - Silvia Catalán
- Departamento de Química Orgánica, Universidad de Valencia, E-46100 Burjassot, Spain, and Laboratorio de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, E-46012 Valencia, Spain
| | - María Sánchez-Roselló
- Departamento de Química Orgánica, Universidad de Valencia, E-46100 Burjassot, Spain, and Laboratorio de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, E-46012 Valencia, Spain
| | - Antonio Simón-Fuentes
- Departamento de Química Orgánica, Universidad de Valencia, E-46100 Burjassot, Spain, and Laboratorio de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, E-46012 Valencia, Spain
| | - Carlos del Pozo
- Departamento de Química Orgánica, Universidad de Valencia, E-46100 Burjassot, Spain, and Laboratorio de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, E-46012 Valencia, Spain
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Kiren S, Padwa A. A Benzannulation Protocol To Prepare Substituted Aryl Amines Using a Michael-Aldol Reaction of β-Keto Sulfones. J Org Chem 2009; 74:7781-9. [DOI: 10.1021/jo9017793] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sezgin Kiren
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
| | - Albert Padwa
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
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Nair V, Vellalath S, Babu BP. Recent advances in carbon-carbon bond-forming reactions involving homoenolates generated by NHC catalysis. Chem Soc Rev 2008; 37:2691-8. [PMID: 19020682 DOI: 10.1039/b719083m] [Citation(s) in RCA: 563] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Homoenolate, a species containing anionic carbon beta to a carbonyl group or a moiety that can be transformed into a carbonyl group, is a potential three carbon synthon. Recent introduction of a protocol for the generation of homoenolate directly from enals by NHC (nucleophilic heterocyclic carbene) catalysis has made it possible to explore the synthetic utility of this unique reactive intermediate. The versatility of NHC-bound homoenolate is illustrated by its annulation with various carbonyl compounds leading to gamma-butyrolactones, spiro-gamma-butyrolactones, and delta-lactones. Interception of homoenolate with imines afforded gamma-lactams and bicyclic beta-lactams. Formation of cyclopentenes and spirocyclopentanones respectively by reaction with enones and dienones is also noteworthy. This tutorial review focuses on these and other types of reactions which attest to the synthetic potential of NHC-bound homoenolates in organic synthesis.
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Affiliation(s)
- Vijay Nair
- Organic Chemistry Section, NIIST-CSIR (Formerly Regional Research Laboratory), Trivandrum 695 019, India.
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12
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Xi C, Yan X, Lai C, Kanno KI, Takahashi T. Regioselective Zirconophosphination of 1-Alkenes: A Versatile Route for the Synthesis of β-Functionalized Alkyldiphenylphosphine Oxides in the Presence of CuCl. Organometallics 2008. [DOI: 10.1021/om701253d] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chanjuan Xi
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, Peopleʼs Republic of China, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, Peopleʼs Republic of China, and Catalysis Research Center, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 001-0021, Japan
| | - Xiaoyu Yan
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, Peopleʼs Republic of China, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, Peopleʼs Republic of China, and Catalysis Research Center, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 001-0021, Japan
| | - Chunbo Lai
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, Peopleʼs Republic of China, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, Peopleʼs Republic of China, and Catalysis Research Center, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 001-0021, Japan
| | - Ken-ichiro Kanno
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, Peopleʼs Republic of China, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, Peopleʼs Republic of China, and Catalysis Research Center, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 001-0021, Japan
| | - Tamotsu Takahashi
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, Peopleʼs Republic of China, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, Peopleʼs Republic of China, and Catalysis Research Center, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 001-0021, Japan
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13
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Prilezhaeva EN. Sulfones and sulfoxides in the total synthesis of biologically active natural compounds. RUSSIAN CHEMICAL REVIEWS 2007. [DOI: 10.1070/rc2000v069n05abeh000561] [Citation(s) in RCA: 150] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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14
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Oare DA, Heathcock CH. Stereochemistry of the Base-Promoted Michael Addition Reaction. TOPICS IN STEREOCHEMISTRY 2007. [DOI: 10.1002/9780470147283.ch5] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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15
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Metallo-phosphorylation of alkenes: a highly regioselective reaction of zirconocene–alkene complexes with chlorophosphate. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.04.048] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Rearrangement of allylic azide and phenylthio groups of 3′-azido- or 3′-phenylthio-4′,5′-didehydro-5′-deoxyarabinofuranosyluridines. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.08.092] [Citation(s) in RCA: 18] [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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17
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Fernández de la Pradilla R, Buergo MV, Martínez MV, Montero C, Tortosa M, Viso A. Sulfur-Directed Synthesis of Enantiopure Hydroxy 2-Sulfinyl Butadienes. J Org Chem 2004; 69:1978-86. [PMID: 15058943 DOI: 10.1021/jo035750g] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The treatment of sulfinyl chlorohydrins with KO-t-Bu in THF generates epoxy vinyl sulfoxides that undergo an efficient base-induced rearrangement to generate enantiopure hydroxy 2-sulfinyl dienes. This novel process takes place with high chemo- and stereoselectivity. The chirality at sulfur effectively controls the geometry of the trisubstituted alkene.
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18
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Lindén AA, Krüger L, Bäckvall JE. Highly selective sulfoxidation of allylic and vinylic sulfides by hydrogen peroxide using a flavin as catalyst. J Org Chem 2003; 68:5890-6. [PMID: 12868923 DOI: 10.1021/jo034273z] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A highly chemoselective oxidation of allylic and vinylic sulfides to the corresponding sulfoxides has been developed using flavin 1 as the oxidation catalyst and hydrogen peroxide as the terminal oxidant. The sulfoxides were formed in good to excellent yields in a highly selective manner even when an excess of the oxidant was used. Sulfone formation was completely suppressed to <0.5% (in one single case 1.5% sulfone was detected). No epoxidation of double bonds or interference with other functional groups was observed under the reaction conditions. The general applicability was demonstrated by the selective oxidation of various allylic and vinylic sulfides having different electronic properties. A number of functionalities including hydroxy, acetoxy, amino, silyloxy, and formyl groups are tolerated under these mild reaction conditions.
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Affiliation(s)
- Auri A Lindén
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
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Hailes HC, Isaac B, Javaid M. 1,4-Addition of chiral 2-propenylphosphonamide anions to α-substituted cyclopentenones: use in enantioselective syntheses of methyl dihydrojasmonates and methyl jasmonates. Tetrahedron Lett 2001. [DOI: 10.1016/s0040-4039(01)01437-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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20
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Ruan W, Hassner A. Stereoselective Michael Additions of Phosphorylated Allyl Carbanions − Synthesis of Functionalized Cyclopentylphosphonates and Phosphane Oxides. European J Org Chem 2001. [DOI: 10.1002/1099-0690(200104)2001:7<1259::aid-ejoc1259>3.0.co;2-d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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21
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Asymmetric conjugate additions of chiral phosphonamide anions to alpha,beta-unsaturated carbonyl compounds. A versatile method for vicinally substituted chirons. J Org Chem 2000; 65:5623-31. [PMID: 10970301 DOI: 10.1021/jo000388g] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Reactions of anions derived from chiral nonracemic allyl, crotyl, and cinnamyl bicyclic C(2)-symmetrical phosphonamides with alpha, beta-unsaturated cyclic ketones, esters, lactones, and lactams take place at the gamma-position of the reagents. The products are diastereomerically pure or enriched beta-substituted carbonyl compounds. The method also provides easy access to vicinal substitution of as many as three stereogenic centers including in some cases quaternary carbon atoms, in a one-pot sequence.
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Katritzky AR, Piffl M, Lang H, Anders E. Regioselectivity of the Reactions of Heteroatom-Stabilized Allyl Anions with Electrophiles. Chem Rev 1999; 99:665-722. [PMID: 11749429 DOI: 10.1021/cr9404297] [Citation(s) in RCA: 89] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alan R. Katritzky
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, and Institut für Organische Chemie und Makromolekulare Chemie der Friedrich-Schiller-Universität Jena, Humboldtstrasse 10, D-07743 Jena, Germany
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Affiliation(s)
- José L. Marco
- Instituto de Química Orgánica General (CSIC), Juan de la Cierva, 3, 28006-Madrid, Spain
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25
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Haynes RK, Lam WWL, Yeung LL, Williams ID, Ridley AC, Starling SM, Vonwiller SC, Hambley TW, Lelandais P. Highly Diastereoselective Conjugate Addition of Lithiated γ-Crotonolactone (But-2-en-4-olide) to Cyclic Enones To Give Syn-Adducts: Application to a Brefeldin Synthesis. J Org Chem 1997. [DOI: 10.1021/jo970337s] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Richard K. Haynes
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay Road, Kowloon, Hong Kong, School of Chemistry, The University of Sydney, New South Wales 2006, Australia, Université de Genève, Faculté des Sciences, Section de Chimie, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland
| | - William W.-L. Lam
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay Road, Kowloon, Hong Kong, School of Chemistry, The University of Sydney, New South Wales 2006, Australia, Université de Genève, Faculté des Sciences, Section de Chimie, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland
| | - Lam-Lung Yeung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay Road, Kowloon, Hong Kong, School of Chemistry, The University of Sydney, New South Wales 2006, Australia, Université de Genève, Faculté des Sciences, Section de Chimie, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland
| | - Ian D. Williams
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay Road, Kowloon, Hong Kong, School of Chemistry, The University of Sydney, New South Wales 2006, Australia, Université de Genève, Faculté des Sciences, Section de Chimie, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland
| | - Andrew C. Ridley
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay Road, Kowloon, Hong Kong, School of Chemistry, The University of Sydney, New South Wales 2006, Australia, Université de Genève, Faculté des Sciences, Section de Chimie, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland
| | - Scott M. Starling
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay Road, Kowloon, Hong Kong, School of Chemistry, The University of Sydney, New South Wales 2006, Australia, Université de Genève, Faculté des Sciences, Section de Chimie, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland
| | - Simone C. Vonwiller
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay Road, Kowloon, Hong Kong, School of Chemistry, The University of Sydney, New South Wales 2006, Australia, Université de Genève, Faculté des Sciences, Section de Chimie, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland
| | - Trevor W. Hambley
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay Road, Kowloon, Hong Kong, School of Chemistry, The University of Sydney, New South Wales 2006, Australia, Université de Genève, Faculté des Sciences, Section de Chimie, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland
| | - Patrick Lelandais
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay Road, Kowloon, Hong Kong, School of Chemistry, The University of Sydney, New South Wales 2006, Australia, Université de Genève, Faculté des Sciences, Section de Chimie, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland
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Ojea V, Conde S, Ruiz M, Fernández MC, Quintela J. Conjugate addition of lithiated Schöllkopf's bislactim ether to 1E,3E-butadienylphosphonates: Stereocontrolled access to 2,3-anti-4E 2-amino-6-phosphono-4-hexenoic acid derivatives. Tetrahedron Lett 1997. [DOI: 10.1016/s0040-4039(97)00888-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Swindell DS, Blase FR, Eggleston DS, Krause J. Evaluation of a chiral aryl auxiliary design for sulfur: regio- and diastereoselective conjugate additions of auxiliary-modified allylic sulfoxide reagents. Tetrahedron Lett 1990. [DOI: 10.1016/s0040-4039(00)97859-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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32
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Swindell CS, Blase FR, Carroll PJ. Evaluation of a chiral aryl auxiliary design for sulfur: construction of auxiliary-modified reagents and stereoselection in sulfoxide formation. Tetrahedron Lett 1990. [DOI: 10.1016/s0040-4039(00)97858-4] [Citation(s) in RCA: 12] [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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