1
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Jersovs G, Bojars M, Donets PA, Suna E. Synthetic Approach toward Enantiopure Cyclic Sulfinamides. Org Lett 2022; 24:4625-4629. [PMID: 35709471 PMCID: PMC9490816 DOI: 10.1021/acs.orglett.2c01738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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A synthetic approach
toward densely substituted enantiopure cyclic
sulfinamides possessing up to four consecutive stereogenic centers
was developed based on a completely diastereoselective SN2′ cyclization/tert-Bu cleavage sequence.
Diastereospecific transformation of the obtained scaffold into chiral
SVI derivatives such as sulfoximines and sulfonimidamides
is demonstrated.
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Affiliation(s)
- Glebs Jersovs
- Latvian Institute of Organic Synthesis, Aizkraukles 21, Riga LV-1006, Latvia.,Department of Chemistry, University of Latvia, Jelgavas 1, Riga LV-1004, Latvia
| | - Matiss Bojars
- Latvian Institute of Organic Synthesis, Aizkraukles 21, Riga LV-1006, Latvia.,Department of Chemistry, University of Latvia, Jelgavas 1, Riga LV-1004, Latvia
| | - Pavel A Donets
- Latvian Institute of Organic Synthesis, Aizkraukles 21, Riga LV-1006, Latvia
| | - Edgars Suna
- Latvian Institute of Organic Synthesis, Aizkraukles 21, Riga LV-1006, Latvia.,Department of Chemistry, University of Latvia, Jelgavas 1, Riga LV-1004, Latvia
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2
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Relay ring-closing metathesis strategies towards the synthesis of the ABC tricycle of Taxol. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132630] [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]
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3
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Santarsiero A, Bochicchio A, Funicello M, Lupattelli P, Choppin S, Colobert F, Hanquet G, Schiavo L, Convertini P, Chiummiento L, Infantino V. New synthesized polyoxygenated diarylheptanoids suppress lipopolysaccharide-induced neuroinflammation. Biochem Biophys Res Commun 2020; 529:1117-1123. [PMID: 32819574 DOI: 10.1016/j.bbrc.2020.06.122] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 06/24/2020] [Indexed: 01/06/2023]
Abstract
In neurodegenerative diseases, such as Alzheimer's disease, Huntington's disease, Parkinson's disease and multiple sclerosis, neuroinflammation induced by the microglial activation plays a crucial role. In effort to develop effective anti-neuroinflammatory compounds, different new linear polyoxygenated diarylheptanoids were synthesized. In LPS-triggered BV-2 microglial cells their ability to reduce the concentration of IL-6 and TNF-α pro-inflammatory cytokines was evaluated. Moreover, their effect on NF-κB and ATP citrate lyase (ACLY), a recently emerged target of metabolic reprogramming in inflammation, was assessed. Finally, we turned our attention to inflammatory mediators derived from the cleavage of citrate catalyzed by ACLY: prostaglandin E2, nitric oxide and reactive oxygen species. All compounds showed null or minimal cytotoxicity; most of them had a great anti-neuroinflammatory activity. Diarylheptanoids 6b and 6c, bearing a halide atom and benzyl ether protective groups, exhibited the best effect since they blocked the secretion of all inflammatory mediators analyzed and reduced NF-κB and ACLY protein levels.
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Affiliation(s)
- Anna Santarsiero
- Department of Science, University of Basilicata, Via dell'Ateneo Lucano 10, 85100, Potenza, Italy
| | - Antonella Bochicchio
- Department of Science, University of Basilicata, Via dell'Ateneo Lucano 10, 85100, Potenza, Italy
| | - Maria Funicello
- Department of Science, University of Basilicata, Via dell'Ateneo Lucano 10, 85100, Potenza, Italy
| | - Paolo Lupattelli
- Department of Science, University of Basilicata, Via dell'Ateneo Lucano 10, 85100, Potenza, Italy
| | - Sabine Choppin
- Université de Strasbourg, Université de Haute-Alsace, CNRS, UMR 7042-LIMA, ECPM, 25 Rue Becquerel, Strasbourg, 67087, France
| | - Françoise Colobert
- Université de Strasbourg, Université de Haute-Alsace, CNRS, UMR 7042-LIMA, ECPM, 25 Rue Becquerel, Strasbourg, 67087, France
| | - Gilles Hanquet
- Université de Strasbourg, Université de Haute-Alsace, CNRS, UMR 7042-LIMA, ECPM, 25 Rue Becquerel, Strasbourg, 67087, France
| | - Lucie Schiavo
- Université de Strasbourg, Université de Haute-Alsace, CNRS, UMR 7042-LIMA, ECPM, 25 Rue Becquerel, Strasbourg, 67087, France
| | - Paolo Convertini
- Department of Science, University of Basilicata, Via dell'Ateneo Lucano 10, 85100, Potenza, Italy.
| | - Lucia Chiummiento
- Department of Science, University of Basilicata, Via dell'Ateneo Lucano 10, 85100, Potenza, Italy.
| | - Vittoria Infantino
- Department of Science, University of Basilicata, Via dell'Ateneo Lucano 10, 85100, Potenza, Italy
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4
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Kim J, Park S, Kim H, Kim J. CuCl2-promoted decomposition of sulfonyl hydrazides for the synthesis of thiosulfonates. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152112] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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5
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Kim KD, Lee JH. Visible-Light Photocatalyzed Deoxygenation of N-Heterocyclic N-Oxides. Org Lett 2018; 20:7712-7716. [DOI: 10.1021/acs.orglett.8b03446] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Kyu Dong Kim
- Department of Advanced Materials Chemistry, Dongguk University, Gyeongju 38066, Republic of Korea
| | - Jun Hee Lee
- Department of Advanced Materials Chemistry, Dongguk University, Gyeongju 38066, Republic of Korea
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6
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Atkin L, Chen Z, Robertson A, Sturgess D, White JM, Rizzacasa MA. Synthesis of Alkyl Citrates (-)-CJ-13,981, (-)-CJ-13,982, and (-)-L-731,120 via a Cyclobutene Diester. Org Lett 2018; 20:4255-4258. [PMID: 29953238 DOI: 10.1021/acs.orglett.8b01665] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient and step-economic new approach to alkyl citrate natural products from a cyclobutene diester is presented. The key sequence involves a formal [2 + 2]-cycloaddition of a silylketene acetal with dimethylacetylene dicarboxylate to provide the cyclobutene diester 14 with 4.5:1 stereoselectivity. Exposure of diester 14 in acidic methanol effected a hydrolysis, intramolecular oxy-Michael reaction, and cyclobutanone methanolysis cascade to give the triester 15. Iodination and elimination then afforded a key alkyl citrate alkene intermediate, which was converted into the natural products (-)-CJ-13,982 (1), (-)-CJ-13,981 (2), and (-)-L-731,120 (3) via a cross-metathesis and subsequent reduction.
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Affiliation(s)
- Liselle Atkin
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne , Melbourne , Victoria 3010 , Australia
| | - Zongjia Chen
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne , Melbourne , Victoria 3010 , Australia
| | - Angus Robertson
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne , Melbourne , Victoria 3010 , Australia
| | - Dayna Sturgess
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne , Melbourne , Victoria 3010 , Australia
| | - Jonathan M White
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne , Melbourne , Victoria 3010 , Australia
| | - Mark A Rizzacasa
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne , Melbourne , Victoria 3010 , Australia
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7
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Okumura M, Nakamata Huynh SM, Pospech J, Sarlah D. Arenophile-Mediated Dearomative Reduction. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609686] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Mikiko Okumura
- Roger Adams Laboratory; Department of Chemistry; University of Illinois; Illinois 61801 USA
| | | | - Jola Pospech
- Roger Adams Laboratory; Department of Chemistry; University of Illinois; Illinois 61801 USA
| | - David Sarlah
- Roger Adams Laboratory; Department of Chemistry; University of Illinois; Illinois 61801 USA
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8
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Okumura M, Nakamata Huynh SM, Pospech J, Sarlah D. Arenophile-Mediated Dearomative Reduction. Angew Chem Int Ed Engl 2016; 55:15910-15914. [PMID: 27879027 DOI: 10.1002/anie.201609686] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Indexed: 01/18/2023]
Abstract
A dearomative reduction of simple arenes has been developed which employs a visible-light-mediated cycloaddition of arenes with an N-N-arenophile and in situ diimide reduction. Subsequent cycloreversion or fragmentation of the arenophile moiety affords 1,3-cyclohexadienes or 1,4-diaminocyclohex-2-enes, compounds that are not synthetically accessible using existing dearomatization reactions. Importantly, this strategy also provides numerous opportunities for further derivatization as well as site-selective functionalization of polynuclear arenes.
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Affiliation(s)
- Mikiko Okumura
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Illinois, 61801, USA
| | | | - Jola Pospech
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Illinois, 61801, USA
| | - David Sarlah
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Illinois, 61801, USA
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9
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Matralis AN, Tsantrizos YS. Synthesis of Benzothiophene-Containing 10- and 11-Membered Cyclic Phostones. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600333] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Alexios N. Matralis
- Department of Chemistry; McGill University; 801 Sherbrooke Street West H3A 0B8 Montreal QC Canada
| | - Youla S. Tsantrizos
- Department of Chemistry; McGill University; 801 Sherbrooke Street West H3A 0B8 Montreal QC Canada
- Department of Biochemistry; McGill University; 3649 Promenade Sir William Osler H3G 0B1 Montreal QC Canada
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10
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Fang Y, Yuan M, Jin X, Zhang L, Li R, Yang S, Fang M. Metal-free diimide reduction of alkenylphosphonates: simple and efficient protocol for the synthesis of α-substituted ethylphosphonates. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.02.057] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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An efficient and straightforward route to terminal vinyl sulfones via palladium-catalyzed Suzuki reactions of α-bromo ethenylsulfones. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.02.065] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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12
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Lundgren RJ, Thomas BN. Chemo- and regioselective reductive transposition of allylic alcohol derivatives via iridium or rhodium catalysis. Chem Commun (Camb) 2016; 52:958-61. [DOI: 10.1039/c5cc07993d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We report highly chemo- and regioselective reductive transpositions of methyl carbonates to furnish olefin products with complementary regioselectivity to that of established Pd-catalysis.
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Affiliation(s)
| | - Bryce N. Thomas
- Department of Chemistry
- University of Alberta
- Edmonton, Canada
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13
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Boisson J, Thomasset A, Racine E, Cividino P, Banchelin Sainte-Luce T, Poisson JF, Behr JB, Py S. Hydroxymethyl-Branched Polyhydroxylated Indolizidines: Novel Selective α-Glucosidase Inhibitors. Org Lett 2015; 17:3662-5. [DOI: 10.1021/acs.orglett.5b01505] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Julien Boisson
- Univ. Grenoble Alpes, DCM, F-38000 Grenoble, France
- CNRS, DCM, F-38000 Grenoble, France
| | - Amélia Thomasset
- Univ. Grenoble Alpes, DCM, F-38000 Grenoble, France
- CNRS, DCM, F-38000 Grenoble, France
| | - Emilie Racine
- Univ. Grenoble Alpes, DCM, F-38000 Grenoble, France
- CNRS, DCM, F-38000 Grenoble, France
| | - Pascale Cividino
- Univ. Grenoble Alpes, DCM, F-38000 Grenoble, France
- CNRS, DCM, F-38000 Grenoble, France
| | | | - Jean-François Poisson
- Univ. Grenoble Alpes, DCM, F-38000 Grenoble, France
- CNRS, DCM, F-38000 Grenoble, France
| | - Jean-Bernard Behr
- Université de Reims Champagne-Ardenne, Institut de
Chimie Moléculaire de Reims (ICMR), CNRS UMR 7312, UFR Sciences
Exactes et Naturelles, BP
1039, 51687 Reims Cedex 2, France
| | - Sandrine Py
- Univ. Grenoble Alpes, DCM, F-38000 Grenoble, France
- CNRS, DCM, F-38000 Grenoble, France
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14
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Aihara K, Komiya C, Shigenaga A, Inokuma T, Takahashi D, Otaka A. Liquid-Phase Synthesis of Bridged Peptides Using Olefin Metathesis of a Protected Peptide with a Long Aliphatic Chain Anchor. Org Lett 2015; 17:696-9. [DOI: 10.1021/ol503718j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Keisuke Aihara
- Institute
of Health Biosciences and Graduate School of Pharmaceutical Sciences, The University of Tokushima, 1-78-1 Shomachi, Tokushima 770-8505, Japan
| | - Chiaki Komiya
- Institute
of Health Biosciences and Graduate School of Pharmaceutical Sciences, The University of Tokushima, 1-78-1 Shomachi, Tokushima 770-8505, Japan
| | - Akira Shigenaga
- Institute
of Health Biosciences and Graduate School of Pharmaceutical Sciences, The University of Tokushima, 1-78-1 Shomachi, Tokushima 770-8505, Japan
| | - Tsubasa Inokuma
- Institute
of Health Biosciences and Graduate School of Pharmaceutical Sciences, The University of Tokushima, 1-78-1 Shomachi, Tokushima 770-8505, Japan
| | - Daisuke Takahashi
- Institute
for Bioscience Products and Fine Chemicals, AJINOMOTO Co., Inc., 1730 Hinaga, Yokkaichi Mie 510-0885, Japan
| | - Akira Otaka
- Institute
of Health Biosciences and Graduate School of Pharmaceutical Sciences, The University of Tokushima, 1-78-1 Shomachi, Tokushima 770-8505, Japan
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15
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Fujiwara K, Hirose Y, Saito T, Katoono R, Suzuki T. Stereoselective Synthesis of the A-Ring of Armatol A from a Bromo-substituted Chiral Building Block Based on Ireland-Claisen Rearrangement and Ring-Closing Olefin Metathesis. HETEROCYCLES 2015. [DOI: 10.3987/com-14-13143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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16
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Kawai N, Fujikura Y, Takita J, Uenishi J. Stereoselective synthesis of contiguous THF–THF and THF–THP units via PdII-catalyzed tandem reaction with 1,3-chirality transfer. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.09.067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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17
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Ruthenium-Catalyzed Transfer Hydrogenation of Amino- and Amido-Substituted Acetophenones. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301020] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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18
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Affiliation(s)
- Andrew S. Kleinke
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Timothy F. Jamison
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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19
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Oger C, Balas L, Durand T, Galano JM. Are alkyne reductions chemo-, regio-, and stereoselective enough to provide pure (Z)-olefins in polyfunctionalized bioactive molecules? Chem Rev 2012. [PMID: 23194255 DOI: 10.1021/cr3001753] [Citation(s) in RCA: 251] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Camille Oger
- Institut des Biomolécules Max Mousseron, UMR CNRS 5247, Université Montpellier 1, Faculté de Pharmacie, 15 av. Charles Flahault, Bât. D, 34093 Montpellier Cedex 05, France
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20
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Cui R, Guo X, Zheng S, Zhao X. Iridium-Catalyzed Allylic Alkylations of Sodium Phenyl Selenide. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201200836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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21
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Ji MK, Yoon DH, Ha HJ, Kang PJ, Lee WK. Chemoselective Reduction of Olefin by Mixed "Pd" Catalyst. B KOREAN CHEM SOC 2012. [DOI: 10.5012/bkcs.2012.33.9.2853] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Chen H, Wang J, Hong X, Zhou HB, Dong C. A simple and straightforward approach toward selective C=C bond reduction by hydrazine. CAN J CHEM 2012. [DOI: 10.1139/v2012-057] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A simple and straightforward method for reducing the C=C double bond with hydrazine is described. A number of representative C=C bonds in various steric and electronic environments were examined. Substituted alkenes can be selectively reduced in EtOH in the presence of hydrazine to give the corresponding products in up to 100% yields.
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Affiliation(s)
- Hao Chen
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, State Key Laboratory of Virology, Wuhan University School of Pharmaceutical Science, Wuhan 430071, P.R. China
| | - Jianmin Wang
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, State Key Laboratory of Virology, Wuhan University School of Pharmaceutical Science, Wuhan 430071, P.R. China
| | - Xuechuan Hong
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, State Key Laboratory of Virology, Wuhan University School of Pharmaceutical Science, Wuhan 430071, P.R. China
| | - Hai-Bing Zhou
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, State Key Laboratory of Virology, Wuhan University School of Pharmaceutical Science, Wuhan 430071, P.R. China
| | - Chune Dong
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, State Key Laboratory of Virology, Wuhan University School of Pharmaceutical Science, Wuhan 430071, P.R. China
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23
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Lamani M, Ravikumara GS, Prabhu KR. Iron(III) Chloride-Catalysed Aerobic Reduction of Olefins using Aqueous Hydrazine at Ambient Temperature. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200110] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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24
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Lamani M, Guralamata RS, Prabhu KR. Guanidine catalyzed aerobic reduction: a selective aerobic hydrogenation of olefins using aqueous hydrazine. Chem Commun (Camb) 2012; 48:6583-5. [DOI: 10.1039/c2cc32611f] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Churches QI, Mulder RJ, White JM, Tsanaktsidis J, Duggan PJ. The Synthesis of a Cubane-Substituted Dipeptide. Aust J Chem 2012. [DOI: 10.1071/ch12179] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Amino acids and peptides bearing cyclic hydrocarbon side-chains are of interest in the development of a wide range of bioactive molecules. The preparation of an amino acid and a dipeptide derivative bearing an unfunctionalised cubane substituent is described. Attempts to prepare a cubylalanine derivative via the corresponding dehydroalanine were unsuccessful due to the high sensitivity of this vinyl cubane compound. Conversely, the addition of cubyllithium to a (RS)-glyoxylate sulfinimine led to an effective synthesis of a cubylglycine derivative and a cubane-substituted dipeptide in diastereomerically pure form.
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26
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Park S, Yang D, Kim KT, Jeon HB. Synthesis of 2-arylacrylic esters from aryl methyl ketones via Wittig reaction/singlet oxygen ene reaction. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.09.127] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Kim ES, Kim SY, Kim BM. Efficient and Chemoselective Reduction of Olefins Catalyzed by Fe3O4Nanoparticles using Hydrazine Hydrate. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.8.3183] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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28
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Teichert JF, den Hartog T, Hanstein M, Smit C, ter Horst B, Hernandez-Olmos V, Feringa BL, Minnaard AJ. Organocatalytic Reduction of Carbon−Carbon Double Bonds in Racemization-Sensitive Compounds. ACS Catal 2011. [DOI: 10.1021/cs100121m] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Johannes F. Teichert
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Tim den Hartog
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Miriam Hanstein
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Christian Smit
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Bjorn ter Horst
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Victor Hernandez-Olmos
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Ben L. Feringa
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Adriaan J. Minnaard
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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29
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Marsh BJ, Heath EL, Carbery DR. Organocatalytic diimide reduction of enamides in water. Chem Commun (Camb) 2011; 47:280-2. [DOI: 10.1039/c0cc02272a] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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