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Barday M, Bouillac P, Coquerel Y, Amatore M, Constantieux T, Rodriguez J. Enantioselective Organocatalytic Syntheses and Ring‐Expansions of Cyclobutane Derivatives. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Manuel Barday
- Aix-Marseille Univ, CNRS, Centrale Marseille, iSm2 Marseille France
| | - Pierre Bouillac
- Aix-Marseille Univ, CNRS, Centrale Marseille, iSm2 Marseille France
| | - Yoann Coquerel
- Aix-Marseille Univ, CNRS, Centrale Marseille, iSm2 Marseille France
| | - Muriel Amatore
- Aix-Marseille Univ, CNRS, Centrale Marseille, iSm2 Marseille France
| | | | - Jean Rodriguez
- Aix-Marseille Univ, CNRS, Centrale Marseille, iSm2 Marseille France
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2
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Afanasenko A, Barta K. Pharmaceutically relevant (hetero)cyclic compounds and natural products from lignin-derived monomers: Present and perspectives. iScience 2021; 24:102211. [PMID: 33733071 PMCID: PMC7941040 DOI: 10.1016/j.isci.2021.102211] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Lignin, the richest source of renewable aromatics on the planet, is an intriguing raw material for the construction of value-added aromatics. In the past decade, much progress has been made regarding the development of efficient lignin depolymerization methods, able to produce specific monophenol derivatives in high-enough selectivity and yields. This now serves as an excellent basis for developing powerful downstream conversion strategies toward a wide range of products, including fine chemical building blocks. The inherent structural features of lignin-derived platform chemicals undoubtedly inspire the development of novel, creative, atom-economic synthetic routes toward biologically active molecules or natural products. In this perspective we attempt to bridge the structural features of lignin-derived platform chemicals with existing synthetic strategies toward the construction of heterocycles and provide a summary of efforts for the production of natural products from aromatics that can be, in principle, obtained from lignin. Last, we comment on the latest efforts that present entire value-chains from wood to valuable pharmaceutically relevant compounds.
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Affiliation(s)
- Anastasiia Afanasenko
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, the Netherlands
| | - Katalin Barta
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, the Netherlands
- Institute of Chemistry, University of Graz, Heinrichstrasse 28, 8010 Graz, Austria
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3
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Nielsen AJ, Deng Z, McNulty J. The synthesis of atalantrenes B, C and D, styrene-dimers from the seeds of Atalantia monophylla. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2020.152716] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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4
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Chen Y, Wang Y, Wang S, Ma YY, Zhao DG, Zhan R, Huang H. Asymmetric Construction of Cyclobutanes via Direct Vinylogous Michael Addition/Cyclization of β,γ-Unsaturated Amides. Org Lett 2020; 22:7135-7140. [DOI: 10.1021/acs.orglett.0c02488] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Yuzhen Chen
- Research Center of Chinese Herbal Resource Science and Engineering, Key Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Yichen Wang
- Research Center of Chinese Herbal Resource Science and Engineering, Key Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Shuzhong Wang
- Research Center of Chinese Herbal Resource Science and Engineering, Key Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Yan-Yan Ma
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Deng-Gao Zhao
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Ruoting Zhan
- Research Center of Chinese Herbal Resource Science and Engineering, Key Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Huicai Huang
- Research Center of Chinese Herbal Resource Science and Engineering, Key Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
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5
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Zhang X, Paton RS. Stereoretention in styrene heterodimerisation promoted by one-electron oxidants. Chem Sci 2020; 11:9309-9324. [PMID: 34123173 PMCID: PMC8163378 DOI: 10.1039/d0sc03059g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Radical cations generated from the oxidation of C
Created by potrace 1.16, written by Peter Selinger 2001-2019
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C π-bonds are synthetically useful reactive intermediates for C–C and C–X bond formation. Radical cation formation, induced by sub-stoichiometric amounts of external oxidant, are important intermediates in the Woodward–Hoffmann thermally disallowed [2 + 2] cycloaddition of electron-rich alkenes. Using density functional theory (DFT), we report the detailed mechanisms underlying the intermolecular heterodimerisation of anethole and β-methylstyrene to give unsymmetrical, tetra-substituted cyclobutanes. Reactions between trans-alkenes favour the all-trans adduct, resulting from a kinetic preference for anti-addition reinforced by reversibility at ambient temperatures since this is also the thermodynamic product; on the other hand, reactions between a trans-alkene and a cis-alkene favour syn-addition, while exocyclic rotation in the acyclic radical cation intermediate is also possible since C–C forming barriers are higher. Computations are consistent with the experimental observation that hexafluoroisopropanol (HFIP) is a better solvent than acetonitrile, in part due to its ability to stabilise the reduced form of the hypervalent iodine initiator by hydrogen bonding, but also through the stabilisation of radical cationic intermediates along the reaction coordinate. A computational study details the mechanism, catalytic cycle and origins of stereoselectivity underlying hole-catalyzed intermolecular alkene heterodimerisation to give unsymmetrical, tetra-substituted cyclobutanes.![]()
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Affiliation(s)
- Xinglong Zhang
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford Mansfield Road Oxford OX1 3TA UK
| | - Robert S Paton
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford Mansfield Road Oxford OX1 3TA UK.,Department of Chemistry, Colorado State University Fort Collins CO 80523 USA
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6
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Jiang Z, Sekhon A, Oka Y, Chen G, Alrubati N, Kaur J, Orozco A, Zhang Q, Wang G, Chen QH. 23- O-Substituted-2,3-Dehydrosilybins Selectively Suppress Androgen Receptor-Positive LNCaP Prostate Cancer Cell Proliferation. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20922326] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
As part of our ongoing project to search for natural product-based antiandrogens, nine derivatives of 2,3-dehydrosilybin have been synthesized for the evaluation of its antiproliferative activity in an androgen receptor-positive prostate cancer cell model. Specifically, 3,5,7,20- O-tetramethyl-2,3-dehydrosilybin was synthesized through two approaches, and eight 23- O-substituted-3,5,7,20- O-tetramethyl-2,3-dehydrosilybins were achieved from 3,5,7,20- O-tetramethyl-2,3-dehydrosilybin. The antiproliferative potency of 3,5,7,20- O-tetramethyl-2,3-dehydrosilybin and its eight derivatives were assessed in an androgen receptor (AR)-positive LNCaP prostate cancer cell line, as well as in two AR-negative (PC-3 and DU145) prostate cancer cell models as a comparison. Our WST cell proliferation assay data indicate 3,5,7,20- O-tetramethyl-2,3-dehydrosilybin and most of its 23- O-substituents can selectively inhibit AR-positive LNCaP prostate cancer cell proliferation. Our data suggest that 3,5,7,20- O-tetramethyl-2,3-dehydrosilibins could serve as a natural product-based scaffold for new antiandrogens for lethal castration-resistant prostate cancer.
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Affiliation(s)
- Ziran Jiang
- Department of Chemistry, California State University, Fresno, CA, USA
| | - Arman Sekhon
- Department of Chemistry, California State University, Fresno, CA, USA
| | - Yogeshwari Oka
- Department of Chemistry, California State University, Fresno, CA, USA
| | - Guanglin Chen
- Department of Chemistry, California State University, Fresno, CA, USA
| | - Nagat Alrubati
- Department of Chemistry, California State University, Fresno, CA, USA
| | - Jasleen Kaur
- Department of Chemistry, California State University, Fresno, CA, USA
| | - Alexia Orozco
- Department of Chemistry, California State University, Fresno, CA, USA
| | - Qiang Zhang
- Department of Chemistry and RCMI Cancer Research Center, Xavier University of Louisiana, New Orleans, LA, USA
| | - Guangdi Wang
- Department of Chemistry and RCMI Cancer Research Center, Xavier University of Louisiana, New Orleans, LA, USA
| | - Qiao-Hong Chen
- Department of Chemistry, California State University, Fresno, CA, USA
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7
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Curti C, Battistini L, Sartori A, Zanardi F. New Developments of the Principle of Vinylogy as Applied to π-Extended Enolate-Type Donor Systems. Chem Rev 2020; 120:2448-2612. [PMID: 32040305 PMCID: PMC7993750 DOI: 10.1021/acs.chemrev.9b00481] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Indexed: 12/19/2022]
Abstract
The principle of vinylogy states that the electronic effects of a functional group in a molecule are possibly transmitted to a distal position through interposed conjugated multiple bonds. As an emblematic case, the nucleophilic character of a π-extended enolate-type chain system may be relayed from the legitimate α-site to the vinylogous γ, ε, ..., ω remote carbon sites along the chain, provided that suitable HOMO-raising strategies are adopted to transform the unsaturated pronucleophilic precursors into the reactive polyenolate species. On the other hand, when "unnatural" carbonyl ipso-sites are activated as nucleophiles (umpolung), vinylogation extends the nucleophilic character to "unnatural" β, δ, ... remote sites. Merging the principle of vinylogy with activation modalities and concepts such as iminium ion/enamine organocatalysis, NHC-organocatalysis, cooperative organo/metal catalysis, bifunctional organocatalysis, dicyanoalkylidene activation, and organocascade reactions represents an impressive step forward for all vinylogous transformations. This review article celebrates this evolutionary progress, by collecting, comparing, and critically describing the achievements made over the nine year period 2010-2018, in the generation of vinylogous enolate-type donor substrates and their use in chemical synthesis.
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Affiliation(s)
| | | | | | - Franca Zanardi
- Dipartimento di Scienze degli
Alimenti e del Farmaco, Università
di Parma, Parco Area delle Scienze 27A, 43124 Parma, Italy
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8
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Meirelles MA, Braga CB, Ornelas C, Pilli RA. Synthesis of Nitrogen-Containing Goniothalamin Analogues with Higher Cytotoxic Activity and Selectivity against Cancer Cells. ChemMedChem 2019; 14:1403-1417. [PMID: 31260170 DOI: 10.1002/cmdc.201900281] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 06/25/2019] [Indexed: 12/23/2022]
Abstract
Two series of racemic goniothalamin analogues displaying nitrogen-containing groups were designed and synthesized. A total of 19 novel analogues were evaluated against a panel of four different cancer cell lines, along with the normal prostate cell line PNT2 to determine their selectivity. Among them, goniothalamin chloroacrylamide 13 e displayed the lowest IC50 values for both MCF-7 (0.5 μm) and PC3 (0.3 μm) cells, about 26-fold more potent than goniothalamin (1). Besides its higher potency, compound 13 e also displayed much higher selectivity than goniothalamin. In contrast, goniothalamin isobutyramide 13 c was the most potent analogue against Caco-2 cells (IC50 =0.8 μm), about 10-fold more potent and 17-fold more selective than 1. These results reveal the potential of compounds 13 c and 13 e for further in vivo studies, representing the first goniothalamin analogues with IC50 values in the low micromolar range and high selectivity against MCF-7, Caco-2, and PC3 cancer cell lines.
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Affiliation(s)
- Matheus A Meirelles
- Department of Organic Chemistry, Institute of Chemistry, University of Campinas, UNICAMP CEP 13083-970, Campinas, São Paulo, Brazil
| | - Carolyne B Braga
- Department of Organic Chemistry, Institute of Chemistry, University of Campinas, UNICAMP CEP 13083-970, Campinas, São Paulo, Brazil
| | - Catia Ornelas
- Department of Organic Chemistry, Institute of Chemistry, University of Campinas, UNICAMP CEP 13083-970, Campinas, São Paulo, Brazil
| | - Ronaldo A Pilli
- Department of Organic Chemistry, Institute of Chemistry, University of Campinas, UNICAMP CEP 13083-970, Campinas, São Paulo, Brazil
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9
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Akula PS, Hong BC, Lee GH. Catalyst- and Substituent-Controlled Switching of Chemoselectivity for the Enantioselective Synthesis of Fully Substituted Cyclobutane Derivatives via 2 + 2 Annulation of Vinylogous Ketone Enolates and Nitroalkene. Org Lett 2018; 20:7835-7839. [DOI: 10.1021/acs.orglett.8b03335] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pavan Sudheer Akula
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi 621, Taiwan, Republic of China
| | | | - Gene-Hsiang Lee
- Instrumentation Center, National Taiwan University, Taipei 106, Taiwan, Republic of China
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10
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Sakamoto T, Mochizuki T, Goto Y, Hatano M, Ishihara K. Boron Tribromide-Assisted Chiral Phosphoric Acid Catalysts for Enantioselective [2+2] Cycloaddition. Chem Asian J 2018; 13:2373-2377. [DOI: 10.1002/asia.201800351] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 03/27/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Tatsuhiro Sakamoto
- Graduate School of Engineering; Nagoya University; Furo-cho Chikusa Nagoya 464-8603 Japan
| | - Takuya Mochizuki
- Graduate School of Engineering; Nagoya University; Furo-cho Chikusa Nagoya 464-8603 Japan
| | - Yuta Goto
- Graduate School of Engineering; Nagoya University; Furo-cho Chikusa Nagoya 464-8603 Japan
| | - Manabu Hatano
- Graduate School of Engineering; Nagoya University; Furo-cho Chikusa Nagoya 464-8603 Japan
| | - Kazuaki Ishihara
- Graduate School of Engineering; Nagoya University; Furo-cho Chikusa Nagoya 464-8603 Japan
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11
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Feng W, Yang H, Wang Z, Gou BB, Chen J, Zhou L. Enantioselective [3 + 2] Formal Cycloaddition of 1-Styrylnaphthols with Quinones Catalyzed by a Chiral Phosphoric Acid. Org Lett 2018; 20:2929-2933. [DOI: 10.1021/acs.orglett.8b00988] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Wang Feng
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Hui Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Zhe Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Bo-Bo Gou
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Jie Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Ling Zhou
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P. R. China
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12
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Miller ZD, Lee BJ, Yoon TP. Enantioselective Crossed Photocycloadditions of Styrenic Olefins by Lewis Acid Catalyzed Triplet Sensitization. Angew Chem Int Ed Engl 2017; 56:11891-11895. [PMID: 28776908 PMCID: PMC5661956 DOI: 10.1002/anie.201706975] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Revised: 07/31/2017] [Indexed: 12/21/2022]
Abstract
The synthesis of unsymmetrical cyclobutanes by controlled heterodimerization of olefins remains a substantial challenge, particularly in an enantiocontrolled fashion. Shown herein is that chiral Lewis acid catalyzed triplet sensitization enables the synthesis of highly enantioenriched diarylcyclobutanes by photocycloaddition of structurally varied 2'-hydroxychalcones with a range of styrene coupling partners. The utility of this reaction is demonstrated through the direct synthesis of a representative norlignan cyclobutane natural product.
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Affiliation(s)
- Zachary D Miller
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI, 53726, USA
| | - Byung Joo Lee
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI, 53726, USA
| | - Tehshik P Yoon
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI, 53726, USA
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13
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Miller ZD, Lee BJ, Yoon TP. Enantioselective Crossed Photocycloadditions of Styrenic Olefins by Lewis Acid Catalyzed Triplet Sensitization. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706975] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Zachary D. Miller
- Department of Chemistry; University of Wisconsin-Madison; 1101 University Avenue Madison WI 53726 USA
| | - Byung Joo Lee
- Department of Chemistry; University of Wisconsin-Madison; 1101 University Avenue Madison WI 53726 USA
| | - Tehshik P. Yoon
- Department of Chemistry; University of Wisconsin-Madison; 1101 University Avenue Madison WI 53726 USA
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14
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Klier L, Tur F, Poulsen PH, Jørgensen KA. Asymmetric cycloaddition reactions catalysed by diarylprolinol silyl ethers. Chem Soc Rev 2017; 46:1080-1102. [DOI: 10.1039/c6cs00713a] [Citation(s) in RCA: 152] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Organocatalysis as a paint palette for asymmetric cycloaddition reactions.
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Affiliation(s)
- Lydia Klier
- Department of Chemistry
- Aarhus University
- DK-8000 Aarhus C
- Denmark
| | - Fernando Tur
- Department of Chemistry
- Aarhus University
- DK-8000 Aarhus C
- Denmark
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15
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McLeod D, McNulty J. DualPhos: a versatile, chemoselective reagent for two-carbon aldehyde to latent ( E)-alkenal homologation and application in the total synthesis of phomolide G. ROYAL SOCIETY OPEN SCIENCE 2016; 3:160374. [PMID: 28018615 PMCID: PMC5180113 DOI: 10.1098/rsos.160374] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 10/07/2016] [Indexed: 06/06/2023]
Abstract
Advances on the use of the 2-pinacolacetal-tripropylphosphonium salt DualPhos as a general reagent for the two-carbon aldehyde to alkenal homologation and a chemoselective iron (III) chloride mediated deprotection are described. The strategy allows isolation of the latent alkenal intermediates or direct hydrolysis to (E)-alkenals. The robust chemical stability of the latent alkenals is demonstrated in a total synthesis of the macrolactone phomolide G.
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