1
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Saito T, Shimizu Y, Araki Y, Ohgami Y, Kitazawa Y, Nishii Y. From Enantioenriched Donor‐Acceptor Cyclopropylcarbinols to Axially Chiral Arylnaphthalenes through Aryldihydronaphthalenes: Central‐to‐Axial Chirality Exchange. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Taichi Saito
- Department of Applied Chemistry, Faculty of Textile Science and Technology Shinshu University Tokida 3-15-1 Ueda Nagano 386–8567 Japan
| | - Yuka Shimizu
- Department of Applied Chemistry, Faculty of Textile Science and Technology Shinshu University Tokida 3-15-1 Ueda Nagano 386–8567 Japan
| | - Yusuke Araki
- Department of Applied Chemistry, Faculty of Textile Science and Technology Shinshu University Tokida 3-15-1 Ueda Nagano 386–8567 Japan
| | - Yoshino Ohgami
- Department of Applied Chemistry, Faculty of Textile Science and Technology Shinshu University Tokida 3-15-1 Ueda Nagano 386–8567 Japan
| | - Yu Kitazawa
- Department of Applied Chemistry, Faculty of Textile Science and Technology Shinshu University Tokida 3-15-1 Ueda Nagano 386–8567 Japan
| | - Yoshinori Nishii
- Department of Applied Chemistry, Faculty of Textile Science and Technology Shinshu University Tokida 3-15-1 Ueda Nagano 386–8567 Japan
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2
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Koshino S, Taniguchi T, Monde K, Kwon E, Hayashi Y. Enantiodivergent One-Pot Synthesis of Axially Chiral Biaryls Using Organocatalyst-Mediated Enantioselective Domino Reaction and Central-to-Axial Chirality Conversion. Chemistry 2021; 27:15786-15794. [PMID: 34524720 DOI: 10.1002/chem.202102797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Indexed: 01/03/2023]
Abstract
Enantiodivergent one-pot synthesis of biaryls was developed using a catalytic amount of a single chiral source. A domino organocatalyst-mediated enantioselective Michael reaction and aldol condensation provided centrally chiral dihydronaphthalenes with excellent enantioselectivity, from which an enantiodivergent chirality conversion from central-to-axial chirality was achieved. Both enantiomers of biaryls were obtained with excellent enantioselectivity. All transformations can be conducted in a single reaction vessel. A plausible reaction mechanism for the enantiodivergence is proposed.
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Affiliation(s)
- Seitaro Koshino
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan
| | - Tohru Taniguchi
- Frontier Research Center of Advanced Material and Life Science, Faculty of Advanced Life Science, Hokkaido University, Sapporo, 001-0021, Japan
| | - Kenji Monde
- Frontier Research Center of Advanced Material and Life Science, Faculty of Advanced Life Science, Hokkaido University, Sapporo, 001-0021, Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan
| | - Yujiro Hayashi
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan
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3
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Sweet JS, Rajkumar S, Dingwall P, Knipe PC. Atroposelective Synthesis, Structure and Properties of a Novel Class of Axially Chiral
N
‐Aryl Quinolinium Salt. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100188] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Jamie S. Sweet
- School of Chemistry and Chemical Engineering Queen's University Belfast David Keir Building Belfast BT9 5AG UK
| | - Sundaram Rajkumar
- School of Chemistry and Chemical Engineering Queen's University Belfast David Keir Building Belfast BT9 5AG UK
- Present address: Almac Group Ltd. 20 Seagoe Industrial Estate Craigavon BT63 5QD UK
| | - Paul Dingwall
- School of Chemistry and Chemical Engineering Queen's University Belfast David Keir Building Belfast BT9 5AG UK
| | - Peter C. Knipe
- School of Chemistry and Chemical Engineering Queen's University Belfast David Keir Building Belfast BT9 5AG UK
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4
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Yang H, Chen J, Zhou L. Construction of Axially Chiral Compounds via Central-to-Axial Chirality Conversion. Chem Asian J 2020; 15:2939-2951. [PMID: 32755013 DOI: 10.1002/asia.202000681] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/02/2020] [Indexed: 11/10/2022]
Abstract
Central-to-axial chirality conversion represents a fascinating class of chemical processes consisting of the destruction of stereogenic centers and the simultaneous installation of axial chiral elements, which provides efficient methods for the preparation of axially chiral compounds. Using the strategy, a wide range of axially chiral compounds, including biaryls, heterobiaryls, aromatic amides, allenes and vinyl arenes, have been synthesized with high efficiency and excellent enantioselectivity. In addition, central-to-axial chirality conversion strategy has been applied to the synthesis of natural products. The strategy has undoubtedly become and will continue to be a hot research topic in the field of asymmetric catalysis and synthesis. In this minireview, we selected some examples to introduce the developments and trends in the central-to-axial chirality conversion strategy up to April 2020.
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Affiliation(s)
- Hui Yang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P. R. China
| | - Jie Chen
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P. R. China
| | - Ling Zhou
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P. R. China
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5
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Shu T, Zhao L, Li S, Chen XY, von Essen C, Rissanen K, Enders D. Asymmetric Synthesis of Spirocyclic β-Lactams through Copper-Catalyzed Kinugasa/Michael Domino Reactions. Angew Chem Int Ed Engl 2018; 57:10985-10988. [DOI: 10.1002/anie.201806931] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Indexed: 12/19/2022]
Affiliation(s)
- Tao Shu
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Long Zhao
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Sun Li
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Xiang-Yu Chen
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Carolina von Essen
- Department of Chemistry; University of Jyväskylä; P. O. Box 35 40014 Jyväskylä Finland
| | - Kari Rissanen
- Department of Chemistry; University of Jyväskylä; P. O. Box 35 40014 Jyväskylä Finland
| | - Dieter Enders
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
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6
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Shu T, Zhao L, Li S, Chen XY, von Essen C, Rissanen K, Enders D. Asymmetric Synthesis of Spirocyclic β-Lactams through Copper-Catalyzed Kinugasa/Michael Domino Reactions. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806931] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Tao Shu
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Long Zhao
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Sun Li
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Xiang-Yu Chen
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Carolina von Essen
- Department of Chemistry; University of Jyväskylä; P. O. Box 35 40014 Jyväskylä Finland
| | - Kari Rissanen
- Department of Chemistry; University of Jyväskylä; P. O. Box 35 40014 Jyväskylä Finland
| | - Dieter Enders
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
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7
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Link A, Sparr C. Remote Central-to-Axial Chirality Conversion: Direct Atroposelective Ester to Biaryl Transformation. Angew Chem Int Ed Engl 2018; 57:7136-7139. [DOI: 10.1002/anie.201803472] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Achim Link
- Department of Chemistry; University of Basel; St. Johanns-Ring 19 4056 Basel Switzerland
| | - Christof Sparr
- Department of Chemistry; University of Basel; St. Johanns-Ring 19 4056 Basel Switzerland
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8
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Link A, Sparr C. Remote Central-to-Axial Chirality Conversion: Direct Atroposelective Ester to Biaryl Transformation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803472] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Achim Link
- Department of Chemistry; University of Basel; St. Johanns-Ring 19 4056 Basel Switzerland
| | - Christof Sparr
- Department of Chemistry; University of Basel; St. Johanns-Ring 19 4056 Basel Switzerland
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9
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Qi C, Wang W, Reichl KD, McNeely J, Porco JA. Total Synthesis of Aurofusarin: Studies on the Atropisomeric Stability of Bis-Naphthoquinones. Angew Chem Int Ed Engl 2018; 57:2101-2104. [PMID: 29318760 PMCID: PMC5890919 DOI: 10.1002/anie.201711535] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 12/21/2017] [Indexed: 12/19/2022]
Abstract
An efficient annulation involving pyrone addition to a quinone and Dieckmann condensation was developed for rapid assembly of a γ-naphthopyrone monomeric precursor to the bis-naphthoquinone natural product aurofusarin. Dimerization was achieved through PdII -catalyzed dehydrogenative coupling. Further studies employing asymmetric nucleophilic epoxidation indicate that the atropisomers of aurofusarin and derivatives are not configurationally stable at ambient temperature.
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Affiliation(s)
| | | | - Kyle D. Reichl
- Department of Chemistry and Center for Molecular Discovery (BU-CMD) Boston University, Boston, MA 02215 (USA)
| | - James McNeely
- Department of Chemistry and Center for Molecular Discovery (BU-CMD) Boston University, Boston, MA 02215 (USA)
| | - John A. Porco
- Department of Chemistry and Center for Molecular Discovery (BU-CMD) Boston University, Boston, MA 02215 (USA)
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10
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Qi C, Wang W, Reichl KD, McNeely J, Porco JA. Total Synthesis of Aurofusarin: Studies on the Atropisomeric Stability of Bis-Naphthoquinones. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711535] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chao Qi
- Department of Chemistry and Center for Molecular Discovery (BU-CMD); Boston University; Boston MA 02215 USA
| | - Wenyu Wang
- Department of Chemistry and Center for Molecular Discovery (BU-CMD); Boston University; Boston MA 02215 USA
| | - Kyle D. Reichl
- Department of Chemistry and Center for Molecular Discovery (BU-CMD); Boston University; Boston MA 02215 USA
| | - James McNeely
- Department of Chemistry and Center for Molecular Discovery (BU-CMD); Boston University; Boston MA 02215 USA
| | - John A. Porco
- Department of Chemistry and Center for Molecular Discovery (BU-CMD); Boston University; Boston MA 02215 USA
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11
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Fujita S, Nishikawa K, Iwata T, Tomiyama T, Ikenaga H, Matsumoto K, Shindo M. Asymmetric Total Synthesis of (−)-Stemonamine and Its Stereochemical Stability. Chemistry 2018; 24:1539-1543. [DOI: 10.1002/chem.201706057] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Satoshi Fujita
- Interdisciplinary Graduate School of Engineering Sciences; Kyushu University, Kasuga-koen; Kasuga 816-8580 Japan
| | - Keisuke Nishikawa
- Institute for Materials Chemistry and Engineering; Kyushu University, Kasuga-koen; Kasuga 816-8580 Japan
| | - Takayuki Iwata
- Institute for Materials Chemistry and Engineering; Kyushu University, Kasuga-koen; Kasuga 816-8580 Japan
| | - Taishi Tomiyama
- Interdisciplinary Graduate School of Engineering Sciences; Kyushu University, Kasuga-koen; Kasuga 816-8580 Japan
| | - Hiroshi Ikenaga
- Interdisciplinary Graduate School of Engineering Sciences; Kyushu University, Kasuga-koen; Kasuga 816-8580 Japan
| | - Kenji Matsumoto
- Institute for Materials Chemistry and Engineering; Kyushu University, Kasuga-koen; Kasuga 816-8580 Japan
| | - Mitsuru Shindo
- Institute for Materials Chemistry and Engineering; Kyushu University, Kasuga-koen; Kasuga 816-8580 Japan
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12
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Volpin G, Vepřek NA, Bellan AB, Trauner D. Enantioselektive Synthese und Racemisierung von (−)‐Sinoracutin. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608206] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Giulio Volpin
- Department of Chemistry Ludwig-Maximilians-Universität München 81377 München Deutschland
| | - Nynke A. Vepřek
- Department of Chemistry Ludwig-Maximilians-Universität München 81377 München Deutschland
| | - Andreas B. Bellan
- Department of Chemistry Ludwig-Maximilians-Universität München 81377 München Deutschland
| | - Dirk Trauner
- Department of Chemistry Ludwig-Maximilians-Universität München 81377 München Deutschland
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13
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Volpin G, Vepřek NA, Bellan AB, Trauner D. Enantioselective Synthesis and Racemization of (-)-Sinoracutine. Angew Chem Int Ed Engl 2016; 56:897-901. [PMID: 27990734 DOI: 10.1002/anie.201608206] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Indexed: 11/12/2022]
Abstract
Sinoracutine is a recently isolated alkaloid with unusual stereochemical and biological properties. It features an unprecedented tetracyclic 6/6/5/5 skeleton that bears an N-methylpyrrolidine ring fused to a cyclopentenone. Interestingly, both enantiomers of sinoracutine have been independently isolated from the same plant, yet the molecule does not appear to occur as a racemate. Here, we present a short synthesis of (-)-sinoracutine that relies on a highly diastereoselective Pauson-Khand reaction and a Mandai-Claisen reaction to install the quaternary stereocenter. Our work establishes the absolute configuration of the levorotatory isomer and suggests that the optical purity of sinoracutine varies in nature due to its gradual racemization. Experimental evidence supports this proposal, and a plausible mechanism for the racemization is provided.
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Affiliation(s)
- Giulio Volpin
- Department of Chemistry, Ludwig-Maximilians-Universität München, 81377, Munich, Germany
| | - Nynke A Vepřek
- Department of Chemistry, Ludwig-Maximilians-Universität München, 81377, Munich, Germany
| | - Andreas B Bellan
- Department of Chemistry, Ludwig-Maximilians-Universität München, 81377, Munich, Germany
| | - Dirk Trauner
- Department of Chemistry, Ludwig-Maximilians-Universität München, 81377, Munich, Germany
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14
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Hsu CS, Fang JM. Synthesis of (+)-Antroquinonol and Analogues by Using Enantioselective Michael Reactions of Benzoquinone Monoketals. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600542] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Che-Sheng Hsu
- Department of Chemistry; National Taiwan University; 106 Taipei Taiwan
| | - Jim-Min Fang
- Department of Chemistry; National Taiwan University; 106 Taipei Taiwan
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15
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Kutz SK, Börger C, Schmidt AW, Knölker HJ. Synthesis of Methylene-Bridged Biscarbazole Alkaloids by using an Ullmann-type Coupling: First Total Synthesis of Murrastifoline-C and Murrafoline-E. Chemistry 2016; 22:2487-500. [DOI: 10.1002/chem.201504680] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Indexed: 11/05/2022]
Affiliation(s)
- Sebastian K. Kutz
- Department Chemie; Technische Universität Dresden; Bergstrasse 66 01069 Dresden Germany), Fax
| | - Carsten Börger
- Department Chemie; Technische Universität Dresden; Bergstrasse 66 01069 Dresden Germany), Fax
| | - Arndt W. Schmidt
- Department Chemie; Technische Universität Dresden; Bergstrasse 66 01069 Dresden Germany), Fax
| | - Hans-Joachim Knölker
- Department Chemie; Technische Universität Dresden; Bergstrasse 66 01069 Dresden Germany), Fax
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16
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Quinonero O, Jean M, Vanthuyne N, Roussel C, Bonne D, Constantieux T, Bressy C, Bugaut X, Rodriguez J. Combining Organocatalysis with Central-to-Axial Chirality Conversion: Atroposelective Hantzsch-Type Synthesis of 4-Arylpyridines. Angew Chem Int Ed Engl 2015; 55:1401-5. [DOI: 10.1002/anie.201509967] [Citation(s) in RCA: 126] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Indexed: 12/18/2022]
Affiliation(s)
- Ophélie Quinonero
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
| | - Marion Jean
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
| | - Nicolas Vanthuyne
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
| | - Christian Roussel
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
| | - Damien Bonne
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
| | - Thierry Constantieux
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
| | - Cyril Bressy
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
| | - Xavier Bugaut
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
| | - Jean Rodriguez
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
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17
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Quinonero O, Jean M, Vanthuyne N, Roussel C, Bonne D, Constantieux T, Bressy C, Bugaut X, Rodriguez J. Combining Organocatalysis with Central-to-Axial Chirality Conversion: Atroposelective Hantzsch-Type Synthesis of 4-Arylpyridines. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509967] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Ophélie Quinonero
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
| | - Marion Jean
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
| | - Nicolas Vanthuyne
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
| | - Christian Roussel
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
| | - Damien Bonne
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
| | - Thierry Constantieux
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
| | - Cyril Bressy
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
| | - Xavier Bugaut
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
| | - Jean Rodriguez
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313; 13397 Marseille France
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18
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Meister AC, Sauter PF, Bräse S. A Stereoselective Approach to Functionalized Cyclohexenones. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300752] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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19
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Mosquera Á, Pena MA, Pérez Sestelo J, Sarandeses LA. Synthesis of Axially Chiral 1,1′-Binaphthalenes by Palladium-Catalysed Cross-Coupling Reactions of Triorganoindium Reagents. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300042] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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20
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Dinca E, Hartmann P, Smrček J, Dix I, Jones PG, Jahn U. General and Efficient α-Oxygenation of Carbonyl Compounds by TEMPO Induced by Single-Electron-Transfer Oxidation of Their Enolates. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200736] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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21
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Yao B, Jaccoud C, Wang Q, Zhu J. Synergistic Effect of Palladium and Copper Catalysts: Catalytic Cyclizative Dimerization of ortho-(1-Alkynyl)benzamides Leading to Axially Chiral 1,3-Butadienes. Chemistry 2012; 18:5864-8. [DOI: 10.1002/chem.201200215] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Revised: 02/27/2012] [Indexed: 11/10/2022]
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22
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Larson RT, Clift MD, Thomson RJ. Total Synthesis of the Galbulimima Alkaloid (−)-GB17. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201108227] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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23
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Larson RT, Clift MD, Thomson RJ. Total synthesis of the Galbulimima alkaloid (-)-GB17. Angew Chem Int Ed Engl 2012; 51:2481-4. [PMID: 22287499 DOI: 10.1002/anie.201108227] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Indexed: 11/09/2022]
Affiliation(s)
- Reed T Larson
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208, USA
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