51
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Yoshida M, Terumine T, Masaki E, Hara S. Direct Asymmetric α-Allylation of α-Branched Aldehydes by Two Catalytic Systems with an Achiral Pd Complex and a Chiral Primary α-Amino Acid. J Org Chem 2013; 78:10853-9. [DOI: 10.1021/jo4018414] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Masanori Yoshida
- Division of Chemical Process Engineering, Graduate School of Engineering, and ‡Molecular Chemistry
and Engineering Course, Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 13-jo Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Tatsuaki Terumine
- Division of Chemical Process Engineering, Graduate School of Engineering, and ‡Molecular Chemistry
and Engineering Course, Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 13-jo Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Erika Masaki
- Division of Chemical Process Engineering, Graduate School of Engineering, and ‡Molecular Chemistry
and Engineering Course, Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 13-jo Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Shoji Hara
- Division of Chemical Process Engineering, Graduate School of Engineering, and ‡Molecular Chemistry
and Engineering Course, Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 13-jo Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
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52
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Stoltz B, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2013. [DOI: 10.1016/s0040-4020(13)01252-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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53
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Kano T, Hayashi Y, Maruoka K. Construction of a chiral quaternary carbon center by catalytic asymmetric alkylation of 2-arylcyclohexanones under phase-transfer conditions. J Am Chem Soc 2013; 135:7134-7. [PMID: 23634801 DOI: 10.1021/ja403340r] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this paper, we present an asymmetric alkylation of modified 2-arylcyclohexanones that employs a novel chiral ammonium bromide as a phase-transfer catalyst and an achiral auxiliary as a controller to improve the enantioselectivity to afford optically enriched products having a chiral quaternary carbon center.
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Affiliation(s)
- Taichi Kano
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
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54
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Hong AY, Stoltz BM. The Construction of All-Carbon Quaternary Stereocenters by Use of Pd-Catalyzed Asymmetric Allylic Alkylation Reactions in Total Synthesis. European J Org Chem 2013; 2013:2745-2759. [PMID: 24944521 PMCID: PMC4059687 DOI: 10.1002/ejoc.201201761] [Citation(s) in RCA: 292] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2012] [Indexed: 11/08/2022]
Abstract
All-carbon quaternary stereocenters have posed significant challenges in the synthesis of complex natural products. These important structural motifs have inspired the development of broadly applicable palladium-catalyzed asymmetric allylic alkylation reactions of unstabilized non-biased enolates for the synthesis of enantioenriched α-quaternary products. This microreview outlines key considerations in the application of palladium-catalyzed asymmetric allylic alkylation reactions and presents recent total syntheses of complex natural products that have employed these powerful transformations for the direct, catalytic, enantioselective construction of all-carbon quaternary stereocenters.
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Affiliation(s)
- Allen Y. Hong
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 101-20, Pasadena, CA 91125, USA, Homepage: http://stoltz.caltech.edu
| | - Brian M. Stoltz
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 101-20, Pasadena, CA 91125, USA, Homepage: http://stoltz.caltech.edu
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55
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Geoghegan K, Evans P. Double Reduction of Cyclic Aromatic Sulfonamides: Synthesis of (+)-Mesembrine and (+)-Mesembranol. J Org Chem 2013; 78:3410-5. [DOI: 10.1021/jo4000306] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Kimberly Geoghegan
- Centre for Synthesis and
Chemical Biology, School of
Chemistry and Chemical Biology, University College Dublin, Dublin 4, Ireland
| | - Paul Evans
- Centre for Synthesis and
Chemical Biology, School of
Chemistry and Chemical Biology, University College Dublin, Dublin 4, Ireland
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56
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Qin TY, Liao WW, Zhang YJ, Zhang SXA. Asymmetric organocatalytic allylic alkylation of Reissert compounds: a facile access to chiral 1,1-disubstituted 1,2-dihydroisoquinolines. Org Biomol Chem 2013; 11:984-90. [PMID: 23283114 DOI: 10.1039/c2ob27269e] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first asymmetric organocatalytic allylic alkylation of 1,2-dihydro-Reissert compounds and Morita-Baylis-Hillman (MBH) carbonates has been developed, which provided a novel protocol to construct enantioenriched functionalized 1,2-dihydroisoquinolines bearing vicinal quaternary and tertiary chiral centers at C-1 position (up to 94% ee, dr > 20 : 1).
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Affiliation(s)
- Tian-You Qin
- Department of Organic Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
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57
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Rueping M, Rasappan R, Raja S. Asymmetric Proline-Catalyzed Addition of Aldehydes to 3H-Indol-3-ones: Enantioselective Synthesis of 2,3-Dihydro-1H-indol-3-ones with Quaternary Stereogenic Centers. Helv Chim Acta 2012. [DOI: 10.1002/hlca.201200498] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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58
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Zhuang Z, Chen JM, Pan F, Liao WW. Lewis base promoted intramolecular acylcyanation of α-substituted activated alkenes: construction of ketones bearing β-quaternary carbon centers. Org Lett 2012; 14:2354-7. [PMID: 22537102 DOI: 10.1021/ol3007716] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel phosphine-promoted intramolecular acylcyanation of α-substituted activated alkenes has been developed, which provides a unique access to densely functionalized acyclic ketones bearing β-quaternary carbon centers with a remarkable feature that both α- and β-positions of activated alkene are functionalized.
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Affiliation(s)
- Zhe Zhuang
- Department of Organic Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
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59
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Richard JA, Pouwer RH, Chen DYK. The chemistry of the polycyclic polyprenylated acylphloroglucinols. Angew Chem Int Ed Engl 2012; 51:4536-61. [PMID: 22461155 DOI: 10.1002/anie.201103873] [Citation(s) in RCA: 121] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Indexed: 12/19/2022]
Abstract
With their fascinating biological profiles and stunningly complex molecular architectures, the polycyclic polyprenylated acylphloroglucinols (PPAPs) have long provided a fertile playing field for synthetic organic chemists. In particular, the recent advent of innovative synthetic methods and strategies together with C-C bond-forming reactions and asymmetric catalysis have revitalized this field tremendously. Consequently, PPAP targets which once seemed beyond reach have now been synthesized. This Review aims to highlight the recent achievements in the total synthesis of PPAPs, as well as notable methods developed for the construction of the bicyclo[3.3.1] core of these chemically and biologically intriguing molecules.
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Affiliation(s)
- Jean-Alexandre Richard
- Chemical Synthesis Laboratory@Biopolis, Institute of Chemical and Engineering Sciences, Agency for Science, Technology and Research (A*STAR), 11 Biopolis Way, The Helios Block, no.03-08, Singapore 138667, Singapore
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60
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Behera M, Venkat Ragavan R, Sambaiah M, Erugu B, Rama Krishna Reddy J, Mukkanti K, Yennam S. An efficient method for the preparation of mono α-aryl derivatives of diethyl malonate and ethyl cyanoacetate using ethyl-1-imidazole carbamate (EImC). Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2011.12.067] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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61
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Ji CB, Liu YL, Zhao XL, Guo YL, Wang HY, Zhou J. Direct amination of α-substituted nitroacetates using di-tert-butyl azodicarboxylate catalyzed by Hatakeyama's catalyst β-ICD. Org Biomol Chem 2012; 10:1158-61. [PMID: 22231285 DOI: 10.1039/c2ob06746c] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the first example of catalytic asymmetric direct amination of α-monosubstituted nitroacetates using di-tert-butyl azodicarboxylate. The simple and easily available Hatakeyama's catalyst β-ICD 11 was found to be a highly enantioselective catalyst for this reaction.
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Affiliation(s)
- Cong-Bin Ji
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, PR China
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62
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Li J, Lee D. Diastereoselective ring-rearrangement metathesis to set the stereochemistry of all-carbon quaternary centres. Chem Sci 2012. [DOI: 10.1039/c2sc20812a] [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] Open
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63
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Behenna DC, Mohr JT, Sherden NH, Marinescu SC, Harned AM, Tani K, Seto M, Ma S, Novák Z, Krout MR, McFadden RM, Roizen JL, Enquist JA, White DE, Levine SR, Petrova KV, Iwashita A, Virgil SC, Stoltz BM. Enantioselective decarboxylative alkylation reactions: catalyst development, substrate scope, and mechanistic studies. Chemistry 2011; 17:14199-223. [PMID: 22083969 PMCID: PMC3365686 DOI: 10.1002/chem.201003383] [Citation(s) in RCA: 172] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2010] [Revised: 07/29/2011] [Indexed: 11/07/2022]
Abstract
α-Quaternary ketones are accessed through novel enantioselective alkylations of allyl and propargyl electrophiles by unstabilized prochiral enolate nucleophiles in the presence of palladium complexes with various phosphinooxazoline (PHOX) ligands. Excellent yields and high enantiomeric excesses are obtained from three classes of enolate precursor: enol carbonates, enol silanes, and racemic β-ketoesters. Each of these substrate classes functions with nearly identical efficiency in terms of yield and enantioselectivity. Catalyst discovery and development, the optimization of reaction conditions, the exploration of reaction scope, and applications in target-directed synthesis are reported. Experimental observations suggest that these alkylation reactions occur through an unusual inner-sphere mechanism involving binding of the prochiral enolate nucleophile directly to the palladium center.
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Affiliation(s)
| | | | - Nathaniel H. Sherden
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 101-20, Pasadena, CA 91125 (USA)
| | - Smaranda C. Marinescu
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 101-20, Pasadena, CA 91125 (USA)
| | - Andrew M. Harned
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 101-20, Pasadena, CA 91125 (USA)
| | - Kousuke Tani
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 101-20, Pasadena, CA 91125 (USA)
| | - Masaki Seto
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 101-20, Pasadena, CA 91125 (USA)
| | - Sandy Ma
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 101-20, Pasadena, CA 91125 (USA)
| | - Zoltán Novák
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 101-20, Pasadena, CA 91125 (USA)
| | - Michael R. Krout
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 101-20, Pasadena, CA 91125 (USA)
| | - Ryan M. McFadden
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 101-20, Pasadena, CA 91125 (USA)
| | - Jennifer L. Roizen
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 101-20, Pasadena, CA 91125 (USA)
| | - John A. Enquist
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 101-20, Pasadena, CA 91125 (USA)
| | - David E. White
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 101-20, Pasadena, CA 91125 (USA)
| | - Samantha R. Levine
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 101-20, Pasadena, CA 91125 (USA)
| | - Krastina V. Petrova
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 101-20, Pasadena, CA 91125 (USA)
| | - Akihiko Iwashita
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 101-20, Pasadena, CA 91125 (USA)
| | - Scott C. Virgil
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 101-20, Pasadena, CA 91125 (USA)
| | - Brian M. Stoltz
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., MC 101-20, Pasadena, CA 91125 (USA)
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64
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Lim HJ, RajanBabu TV. Ethylene in organic synthesis: a new route to anticholenergic pyrrolidinoindolines, and other molecules with all carbon-quaternary centers via asymmetric hydrovinylation. Org Lett 2011; 13:6596-9. [PMID: 22103775 DOI: 10.1021/ol203052y] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The asymmetric hydrovinylation (1 mol % Ni-cat., 1 atm, ethylene, >98% ee) products from 1-methylenetetralines are readily converted into 3,3-disubstituted oxindoles and subsequently to pyrrolidinoindolines. These hydrovinylation products are also useful for the syntheses of enantiopure benzomorphans.
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Affiliation(s)
- Hwan Jung Lim
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, USA
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65
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Zhou F, Ding M, Liu YL, Wang CH, Ji CB, Zhang YY, Zhou J. Organocatalytic Asymmetric α-Amination of Unprotected 3-Aryl and 3-Aliphatic Substituted Oxindoles using Di-tert-butyl Azodicarboxylate. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100379] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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66
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Jahjah R, Gassama A, Dumur F, Marinković S, Richert S, Landgraf S, Lebrun A, Cadiou C, Sellès P, Hoffmann N. Photochemical Electron Transfer Mediated Addition of Naphthylamine Derivatives to Electron-Deficient Alkenes. J Org Chem 2011; 76:7104-18. [DOI: 10.1021/jo201080m] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
| | | | | | | | - Sabine Richert
- Institute of Physical and Theoretical Chemistry, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Stephan Landgraf
- Institute of Physical and Theoretical Chemistry, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Aurélien Lebrun
- Institut de Chimie Moléculaire de Reims, UMR 6229 CNRS et Université de Reims Champagne-Ardenne, UFR Sciences, B.P. 1039, 51687 Reims, France
| | | | - Patrice Sellès
- Syngenta Crop Protection Muenchwilen AG, 4332 Stein, Switzerland
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67
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Onodera G, Yamamoto E, Tonegawa S, Iezumi M, Takeuchi R. Rhodium-Catalyzed Allylation of Benzyl Acetates with Allylsilanes. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100202] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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68
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Stoltz B, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2011. [DOI: 10.1016/s0040-4020(11)00770-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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69
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Shimizu M. Construction of asymmetric quaternary carbon centers with high enantioselectivity. Angew Chem Int Ed Engl 2011; 50:5998-6000. [PMID: 21612008 DOI: 10.1002/anie.201101720] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2011] [Indexed: 11/08/2022]
Affiliation(s)
- Masaki Shimizu
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto University Katsura, Nishikyo-ku, Kyoto, Japan.
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70
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Shimizu M. Aufbau von asymmetrischen quartären Kohlenstoffzentren mit hoher Enantioselektivität. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201101720] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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71
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Dubberke S, Abbas M, Westermann B. Oxidative allylic rearrangement of cycloalkenols: Formal total synthesis of enantiomerically pure trisporic acid B. Beilstein J Org Chem 2011; 7:421-5. [PMID: 21512603 PMCID: PMC3079125 DOI: 10.3762/bjoc.7.54] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Accepted: 03/22/2011] [Indexed: 11/23/2022] Open
Abstract
Enantiomerically highly enriched unsaturated β-ketoesters bearing a quaternary stereocenter can be utilized as building blocks for the synthesis of natural occurring terpenes, i. a., trisporic acid and its derivatives. An advanced building block has been synthesized in a short reaction sequence, which involves an oxidative allylic rearrangement initiated by pyridinium dichromate (PDC) as the key step.
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Affiliation(s)
- Silke Dubberke
- Leibniz Institute of Plant Biochemistry, Department of Bioorganic Chemistry, Weinberg 3, D-06120 Halle (Saale), Germany
| | - Muhammad Abbas
- Chair of Advanced Proteomics and Cytomics Research, Faculty of Science, Department of Zoology, King Saud University, P.O. Box 2455, 11415 Riyadh, Saudi Arabia
| | - Bernhard Westermann
- Leibniz Institute of Plant Biochemistry, Department of Bioorganic Chemistry, Weinberg 3, D-06120 Halle (Saale), Germany
- Martin-Luther-University, Department of Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany
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72
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Stoltz B, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2010. [DOI: 10.1016/s0040-4020(10)01735-7] [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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73
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Rulev AY, Azad S, Kotsuki H, Maddaluno J. Direct Access to Cumbersome Aminated Quaternary Centers by Hyperbaric Aza-Michael Additions. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000984] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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74
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Broekhof NLJM, van der Gen A. Enamine synthesis using the Horner-Wittig
reaction. Part 1. (Aminomethyl)diphenylphosphine oxides, new formyl anion equivalents. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19841031102] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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75
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Broekhof NLJM, van Elburg P, Hoff DJ, van der Gen A. Enamine synthesis using the Horner-Wittig
reaction. Part 2. New acyl anion equivalents derived from (aminomethyl)diphenylphosphine oxides. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19841031104] [Citation(s) in RCA: 16] [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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76
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Felluga F, Ghelfi F, Pitacco G, Roncaglia F, Valentin E, Venneri CD. Esterase-mediated synthesis of optically active GABA analogues containing a stereogenic all-carbon quaternary carbon atom. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.07.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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77
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Guerrab Z, Schweiger S, Daou B, Ahmar M, Cazes B. Lipase-catalyzed kinetic resolution of α-hydroxymethylcycloalkanones with a quaternary carbon center. Chemoenzymatic synthesis of chiral pseudoiridolactones. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.04.043] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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78
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Zhou F, Liu YL, Zhou J. Catalytic Asymmetric Synthesis of Oxindoles Bearing a Tetrasubstituted Stereocenter at the C-3 Position. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000161] [Citation(s) in RCA: 1086] [Impact Index Per Article: 77.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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79
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Mitamura Y, Asada Y, Murakami K, Someya H, Yorimitsu H, Oshima K. Silver-Catalyzed Benzylation and Allylation of Tertiary Alkyl Bromides with Organozinc Reagents. Chem Asian J 2010; 5:1487-93. [DOI: 10.1002/asia.201000068] [Citation(s) in RCA: 15] [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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80
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Mikami K, Tomita Y, Itoh Y. Activation of CF Bonds in Preference to CI Bonds: Difluoromethylation of Lithium Enolates with Trifluoromethyl Iodide. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201000435] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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81
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Mikami K, Tomita Y, Itoh Y. Activation of CF Bonds in Preference to CI Bonds: Difluoromethylation of Lithium Enolates with Trifluoromethyl Iodide. Angew Chem Int Ed Engl 2010; 49:3819-22. [DOI: 10.1002/anie.201000435] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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82
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Nomura K, Matsubara S. Stereospecific Construction of Chiral Tertiary and Quaternary Carbon by Nucleophilic Cyclopropanation with Bis(iodozincio)methane. Chem Asian J 2010; 5:147-52. [DOI: 10.1002/asia.200900289] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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83
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Klein JEMN, Geoghegan K, Méral N, Evans P. Selective generation of quaternary all-carbon-centres through Heck-cyclisations: synthesis of mesembrane. Chem Commun (Camb) 2010; 46:937-9. [DOI: 10.1039/b923175g] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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84
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Yanagisawa A, Nezu T, Mohri SI. Brønsted Acid-Promoted Hydrocyanation of Arylalkenes. Org Lett 2009; 11:5286-9. [DOI: 10.1021/ol902244e] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Arata Yanagisawa
- Chemical Process Research and Development Laboratories, Kyowa Hakko Kirin Co., Ltd., 1-1-53, Takasu-cho, Sakai-ku, Sakai, Osaka 590-8554, Japan
| | - Tetsuya Nezu
- Chemical Process Research and Development Laboratories, Kyowa Hakko Kirin Co., Ltd., 1-1-53, Takasu-cho, Sakai-ku, Sakai, Osaka 590-8554, Japan
| | - Shin-ichiro Mohri
- Chemical Process Research and Development Laboratories, Kyowa Hakko Kirin Co., Ltd., 1-1-53, Takasu-cho, Sakai-ku, Sakai, Osaka 590-8554, Japan
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85
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Jiménez-Osés G, Avenoza A, Busto J, Rodríguez F, Peregrina J. A Novel Multistep Mechanism for the Stereocontrolled Ring Opening of Hindered Sulfamidates: Mild, Green, and Efficient Reactivity with Alcohols. Chemistry 2009; 15:9810-23. [DOI: 10.1002/chem.200900710] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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86
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Fu TH, Bonaparte A, Martin SF. Synthesis of β-Heteroaryl Propionates via Trapping of Carbocations with π-Nucleophiles. Tetrahedron Lett 2009; 50:3253-3257. [PMID: 20161309 PMCID: PMC2699308 DOI: 10.1016/j.tetlet.2009.02.018] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A variety of heterocyclic alcohols and acetates were coupled with silyl ketene acetals and other π-nucleophiles in the presence of trimethylsilyl trifluoromethanesulfonate to provide an array of substituted β-heteroaryl propionates, including those with contiguous quaternary centers, as well as vinylogs thereof. This reaction also proceeds with high diastereoselectivity when the π-nucleophile bears a chiral auxiliary.
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Affiliation(s)
- Tsung-hao Fu
- Department of Chemistry and Biochemistry, The University of Texas, Austin, TX USA 78712
| | - Amy Bonaparte
- Department of Chemistry and Biochemistry, The University of Texas, Austin, TX USA 78712
| | - Stephen F. Martin
- Department of Chemistry and Biochemistry, The University of Texas, Austin, TX USA 78712
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87
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Chen FX, Shao C, Liu Q, Gong P, Liu CL, Wang R. Asymmetric Michael addition of trisubstituted carbanion to nitroalkenes catalyzed by sodium demethylquinine salt in water. Chirality 2009; 21:600-3. [PMID: 18752286 DOI: 10.1002/chir.20651] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A mild method for the asymmetric synthesis of quaternary and tertiary carbon centers has been developed through Michael addition of trisubstituted carbon nucleophile to nitroalkenes catalyzed by low loading sodium demethylquinine salt in water.
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Affiliation(s)
- Fu-Xin Chen
- State Key Laboratory of Applied Organic Chemistry, Institute of Biochemistry and Molecular Biology, Lanzhou University, Lanzhou, Gansu 730000, China
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88
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Belardi JK, Micalizio GC. Conversion of allylic alcohols to stereodefined trisubstituted alkenes: a complementary process to the Claisen rearrangement. J Am Chem Soc 2009; 130:16870-2. [PMID: 19053421 DOI: 10.1021/ja8074242] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A stereoselective method for the conversion of allylic alcohols to (Z)-trisubstituted alkenes is presented. Overall, the reaction sequence described is stereochemically complementary to related Claisen rearrangement reactions--processes that typically deliver the stereoisomeric trisubstituted alkene containing products.
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Affiliation(s)
- Justin K Belardi
- Department of Chemistry, Yale University, New Haven, Connecticut 06520-8107, USA
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90
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Hatakeyama S, Yanagimoto D, Kawano K, Takahashi K, Ishihara J. Enantioselective Route to Aryl(1,3-butadien-2-yl)methanols: Formal Synthesis of (-)-Sporochnol A. HETEROCYCLES 2009. [DOI: 10.3987/com-08-s(f)58] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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91
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Tomita Y, Itoh Y, Mikami K. Dialkylzinc-accelerated α-Trifluoromethylation of Carbonyl Compounds Catalyzed by Late-transition-metal Complexes. CHEM LETT 2008. [DOI: 10.1246/cl.2008.1080] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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92
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Tetrahedron reports on organic chemistry. Tetrahedron 2008. [DOI: 10.1016/s0040-4020(08)00897-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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93
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Jiménez-Osés G, Avenoza A, Busto JH, Peregrina JM. Highly chemoselective reactions on hindered sulfamidates with oxygenated nucleophiles. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.01.030] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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94
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Corrêa RJ, Garden SJ, Angelici G, Tomasini C. A DFT and AIM Study of the Proline-Catalyzed Asymmetric Cross-Aldol Addition of Acetone to Isatins: A Rationalization for the Reversal of Chirality. European J Org Chem 2008. [DOI: 10.1002/ejoc.200700944] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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95
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Baudequin C, Zamfir A, Tsogoeva SB. Highly enantioselective organocatalytic formation of a quaternary carbon center via chiral Brønsted acid catalyzed self-coupling of enamides. Chem Commun (Camb) 2008:4637-9. [DOI: 10.1039/b804477e] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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96
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Cozzi PG, Hilgraf R, Zimmermann N. Enantioselective Catalytic Formation of Quaternary Stereogenic Centers. European J Org Chem 2007. [DOI: 10.1002/ejoc.200700318] [Citation(s) in RCA: 505] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Pier Giorgio Cozzi
- Dipartimento di Chimica “G. Ciamician”, Via Selmi 2, 40126 Bologna, Italy, Fax: +39‐051‐2099456
| | - Robert Hilgraf
- Celgene Corp., 4550 Towne Centre Court, San Diego, CA 92121, USA, Fax: +1‐858‐795‐4719
| | - Nicole Zimmermann
- Vertex Pharmaceuticals Inc., 11010 Torreyana Road, San Diego, CA 92121, USA, Fax: +1‐858‐404‐6726
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97
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98
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99
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Mucedda M, Muroni D, Saba A, Manassero C. Concise diastereospecific pyrrolo[1,2-a][1,4]benzodiazepinone synthesis. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.09.062] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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100
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Mikami K, Kawakami Y, Akiyama K, Aikawa K. Enantioselective Catalysis of Ketoester-ene Reaction of Silyl Enol Ether to Construct Quaternary Carbons by Chiral Dicationic Palladium(II) Complexes. J Am Chem Soc 2007; 129:12950-1. [DOI: 10.1021/ja076539f] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Koichi Mikami
- Department of Applied Chemistry Tokyo Institute of Technology, Tokyo 152-8552, Japan
| | - Yuji Kawakami
- Department of Applied Chemistry Tokyo Institute of Technology, Tokyo 152-8552, Japan
| | - Katsuhiro Akiyama
- Department of Applied Chemistry Tokyo Institute of Technology, Tokyo 152-8552, Japan
| | - Kohsuke Aikawa
- Department of Applied Chemistry Tokyo Institute of Technology, Tokyo 152-8552, Japan
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