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Journal articles on the topic 'Transition Metal, Asymmetric Catalysis'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Phansavath, Phannarath, Virginie Ratovelomanana-Vidal, Sudipta Ponra, and Bernard Boudet. "Recent Developments in Transition-Metal-Catalyzed Asymmetric Hydrogenation of Enamides." Synthesis 53, no. 02 (2020): 193–214. http://dx.doi.org/10.1055/s-0040-1705939.

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AbstractThe catalytic asymmetric hydrogenation of prochiral olefins is one of the most widely studied and utilized transformations in asymmetric synthesis. This straightforward, atom economical, inherently direct and sustainable strategy induces chirality in a broad range of substrates and is widely relevant for both industrial applications and academic research. In addition, the asymmetric hydrogenation of enamides has been widely used for the synthesis of chiral amines and their derivatives. In this review, we summarize the recent work in this field, focusing on the development of new cataly

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2

Baráth, Eszter. "Selective Reduction of Carbonyl Compounds via (Asymmetric) Transfer Hydrogenation on Heterogeneous Catalysts." Synthesis 52, no. 04 (2020): 504–20. http://dx.doi.org/10.1055/s-0039-1691542.

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Based on the ever-increasing demand for optically pure compounds, the development of efficient methods to produce such products is very important. Homogeneous asymmetric catalysis occupies a prominent position in the ranking of chemical transformations, with transition metals coordinated to chiral ligands being applied extensively for this purpose. However, heterogeneous catalysts have the ability to further extend the field of asymmetric transformations, because of their beneficial properties such as high stability, ease of separation and regeneration, and the possibility to apply them in con

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Casnati, Alessandra, Matteo Lanzi, and Gianpiero Cera. "Recent Advances in Asymmetric Iron Catalysis." Molecules 25, no. 17 (2020): 3889. http://dx.doi.org/10.3390/molecules25173889.

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Asymmetric transition-metal catalysis represents a fascinating challenge in the field of organic chemistry research. Since seminal advances in the late 60s, which were finally recognized by the Nobel Prize to Noyori, Sharpless and Knowles in 2001, the scientific community explored several approaches to emulate nature in producing chiral organic molecules. In a scenario that has been for a long time dominated by the use of late-transition metals (TM) catalysts, the use of 3d-TMs and particularly iron has found, recently, a widespread application. Indeed, the low toxicity and the earth-abundancy

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4

Kou, K. G. M., and V. M. Dong. "Tandem rhodium catalysis: exploiting sulfoxides for asymmetric transition-metal catalysis." Organic & Biomolecular Chemistry 13, no. 21 (2015): 5844–47. http://dx.doi.org/10.1039/c5ob00083a.

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Sulfoxides are uncommon substrates for transition-metal catalysis due to their propensity to inhibit catalyst turnover. We have developed the first DKR of racemic allylic sulfoxides where rhodium catalyzed both sulfoxide epimerization and alkene hydrogenation.

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5

Cao, Zhong-Yan, and Jian Zhou. "Catalytic asymmetric synthesis of polysubstituted spirocyclopropyl oxindoles: organocatalysis versus transition metal catalysis." Organic Chemistry Frontiers 2, no. 7 (2015): 849–58. http://dx.doi.org/10.1039/c5qo00092k.

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6

Pagenkopf, Brian L., and Erick M. Carreira. "Transition Metal Fluoride Complexes in Asymmetric Catalysis." Chemistry - A European Journal 5, no. 12 (1999): 3437–42. http://dx.doi.org/10.1002/(sici)1521-3765(19991203)5:12<3437::aid-chem3437>3.0.co;2-e.

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7

Deng, Yongming, Qing-Qing Cheng, and Michael Doyle. "Asymmetric [3+3] Cycloaddition for Heterocycle Synthesis." Synlett 28, no. 14 (2017): 1695–706. http://dx.doi.org/10.1055/s-0036-1588453.

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Asymmetric syntheses of six-membered ring heterocycles are important research targets not only in synthetic organic chemistry but also in pharmaceuticals. The [3+3]-cycloaddition methodology is a complementary strategy to [4+2] cycloaddition for the synthesis of heterocyclic compounds. Recent progress in [3+3]-cycloaddition processes provide powerful asymmetric methodologies for the construction of six-membered ring heterocycles with one to three heteroatoms in the ring. In this account, synthetic efforts during the past five years toward the synthesis of enantioenriched six-membered ring hete

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8

Reznikov, Alexander N., and Yuri N. Klimochkin. "Recent Developments in Highly Stereoselective Michael Addition Reactions Catalyzed by Metal Complexes." Synthesis 52, no. 06 (2020): 781–95. http://dx.doi.org/10.1055/s-0039-1690044.

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Achieving high enantioselectivity and diastereoselectivity simultaneously is a rather challenging task for asymmetric catalytic synthesis. Thanks to the rapid development of asymmetric transition-metal catalysis, significant progress has been made during recent years in achieving highly enantio- and diastereoselective conjugate addition reactions with a diverse combination of Michael donors and acceptors. This short review surveys the advances in transition-metal-catalyzed asymmetric diastereoselective Michael addition including diastereodivergent catalysis developed between 2015 and 2019. T

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9

Noyori, Ryoji, Christian A. Sandoval, Kilian Muñiz, and Takeshi Ohkuma. "Metal–ligand bifunctional catalysis for asymmetric hydrogenation." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 363, no. 1829 (2005): 901–12. http://dx.doi.org/10.1098/rsta.2004.1536.

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Chiral diphosphine/1,2-diamine–Ru(II) complexes catalyse the rapid, productive and enantioselective hydrogenation of simple ketones. The carbonyl-selective hydrogenation takes place via a non-classical metal–ligand bifunctional mechanism. The reduction of the C=O function occurs in the outer coordination sphere of an 18e trans -RuH 2 (diphosphine)(diamine) complex without interaction between the unsaturated moiety and the metallic centre. The Ru atom donates a hydride and the NH 2 ligand delivers a proton through a pericyclic six-membered transition state, directly giving an alcoholic product

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10

Tsuji, Nobuya, Jennifer L. Kennemur, Thomas Buyck, et al. "Activation of olefins via asymmetric Brønsted acid catalysis." Science 359, no. 6383 (2018): 1501–5. http://dx.doi.org/10.1126/science.aaq0445.

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The activation of olefins for asymmetric chemical synthesis traditionally relies on transition metal catalysts. In contrast, biological enzymes with Brønsted acidic sites of appropriate strength can protonate olefins and thereby generate carbocations that ultimately react to form natural products. Although chemists have recently designed chiral Brønsted acid catalysts to activate imines and carbonyl compounds, mimicking these enzymes to protonate simple olefins that then engage in asymmetric catalytic reactions has remained a substantial synthetic challenge. Here, we show that a class of confi

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11

Huo, Haohua, Xiaodong Shen, Chuanyong Wang, et al. "Asymmetric photoredox transition-metal catalysis activated by visible light." Nature 515, no. 7525 (2014): 100–103. http://dx.doi.org/10.1038/nature13892.

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12

Bellini, Rosalba, Jarl Ivar van der Vlugt, and Joost N. H. Reek. "Supramolecular Self-Assembled Ligands in Asymmetric Transition Metal Catalysis." Israel Journal of Chemistry 52, no. 7 (2012): 613–29. http://dx.doi.org/10.1002/ijch.201200002.

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13

Dong, Xiu-Qin, Qingyang Zhao, Pan Li, Caiyou Chen, and Xumu Zhang. "Metalorganocatalysis: cooperating transition-metal catalysis and organocatalysis through a covalent bond." Organic Chemistry Frontiers 2, no. 10 (2015): 1425–31. http://dx.doi.org/10.1039/c5qo00226e.

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Asymmetric catalysis has grown rapidly and made considerable progress in the last few decades, but there still remain significantly unachievable reactions through either organocatalysis or transition-metal catalysis alone.

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14

Kou, K. G. M., and V. M. Dong. "ChemInform Abstract: Tandem Rhodium Catalysis: Exploiting Sulfoxides for Asymmetric Transition-Metal Catalysis." ChemInform 46, no. 29 (2015): no. http://dx.doi.org/10.1002/chin.201529277.

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15

Janssen-Müller, Daniel, Christoph Schlepphorst, and Frank Glorius. "Privileged chiral N-heterocyclic carbene ligands for asymmetric transition-metal catalysis." Chemical Society Reviews 46, no. 16 (2017): 4845–54. http://dx.doi.org/10.1039/c7cs00200a.

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16

Numan, Ahmed, and Matthew Brichacek. "Asymmetric Synthesis of Stereogenic Phosphorus P(V) Centers Using Chiral Nucleophilic Catalysis." Molecules 26, no. 12 (2021): 3661. http://dx.doi.org/10.3390/molecules26123661.

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Organophosphates have been widely used in agrochemistry, as reagents for organic synthesis, and in biochemistry. Phosphate mimics possessing four unique substituents, and thereby a chirality center, are useful in transition metal catalysis and as nucleotide therapeutics. The catalytic, stereocontrolled synthesis of phosphorus-stereogenic centers is challenging and traditionally depends on a resolution or use of stochiometric auxiliaries. Herein, enantioenriched phosphorus centers have been synthesized using chiral nucleophilic catalysis. Racemic H-phosphinate species were coupled with nucleoph

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17

Vargová, Denisa, Ivana Némethová, Kristína Plevová, and Radovan Šebesta. "Asymmetric Transition-Metal Catalysis in the Formation and Functionalization of Metal Enolates." ACS Catalysis 9, no. 4 (2019): 3104–43. http://dx.doi.org/10.1021/acscatal.8b04357.

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18

Janssen-Müller, Daniel, Christoph Schlepphorst, and Frank Glorius. "Correction: Privileged chiral N-heterocyclic carbene ligands for asymmetric transition-metal catalysis." Chemical Society Reviews 46, no. 17 (2017): 5463. http://dx.doi.org/10.1039/c7cs90067h.

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19

Perry, Marc C., and Kevin Burgess. "Chiral N-heterocyclic carbene-transition metal complexes in asymmetric catalysis." Tetrahedron: Asymmetry 14, no. 8 (2003): 951–61. http://dx.doi.org/10.1016/s0957-4166(03)00037-5.

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20

Hamilton, G. L., E. J. Kang, M. Mba, and F. D. Toste. "A Powerful Chiral Counterion Strategy for Asymmetric Transition Metal Catalysis." Science 317, no. 5837 (2007): 496–99. http://dx.doi.org/10.1126/science.1145229.

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21

Breit, Bernhard. "Catalysts through self-assembly for combinatorial homogeneous catalysis." Pure and Applied Chemistry 80, no. 5 (2008): 855–60. http://dx.doi.org/10.1351/pac200880050855.

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Inspired by the principle of DNA base-pairing, a new concept for the self-assembly of molecular catalysts is described herein. Thus, employing A-T analogous complementary hydrogen-bonding templates, self-assembly of monodentate to bidentate ligands in the coordination sphere of a transition-metal salt occurs to give defined self-assembly catalysts. This approach is intrinsically combinatorial and allows the facile generation of defined catalyst libraries through simple component mixing. From the study of these ligand libraries, excellent catalysts for linear-selective hydroformylation, asymmet

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22

Nishiyama, Hisao, and Yukihiro Motoyama. "ChemInform Abstract: Other Transition Metal Reagents: Chiral Transition-Metal Lewis Acid Catalysis for Asymmetric Organic Synthesis." ChemInform 30, no. 32 (2010): no. http://dx.doi.org/10.1002/chin.199932310.

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23

Abdel-Magied, Ahmed F., Yusuf Theibich, Amrendra K. Singh та ін. "Asymmetric hydrogenation of an α-unsaturated carboxylic acid catalyzed by intact chiral transition metal carbonyl clusters – diastereomeric control of enantioselectivity". Dalton Transactions 49, № 14 (2020): 4244–56. http://dx.doi.org/10.1039/c9dt04799a.

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24

Tkachenko, Nikolay V., and Konstantin P. Bryliakov. "Transition Metal Catalyzed Aerobic Asymmetric Coupling of 2-Naphthols." Mini-Reviews in Organic Chemistry 16, no. 4 (2019): 392–98. http://dx.doi.org/10.2174/1570193x15666180418153713.

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Optically pure 1,1′-bi-2-naphthol (BINOL) and its derivatives are among the most widely used chiral ligands and auxiliaries for asymmetric synthesis. These molecules also occur as scaffolds for various biologically active compounds. Direct oxidative coupling of 2-naphthols in the presence of chiral catalysts provides a powerful strategy for the synthesis of optically pure 1,1′-bi-2-naphthols (BINOLS). In 1978, Wynberg with co-workers discovered that a copper salt with chiral auxiliary mediates the oxidative coupling of 2-naphthols, which can be taken as the starting point for further progress

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25

Adams, Nicholas J., Joachim Bargon, John M. Brown, et al. "Interplay of synthesis and mechanism in asymmetric homogeneous catalysis." Pure and Applied Chemistry 73, no. 2 (2001): 343–46. http://dx.doi.org/10.1351/pac200173020343.

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Asymmetric homogeneous catalysis forms one of the main planks of modern organic synthesis. It has developed rapidly and largely through the application of novel ligands, whose design is very much based on insight and intuition. At the same time, a better understanding of catalytic reaction mechanisms can contribute to further progress, since it can identify the intimate relationship between ligand structure and successful applications. The presentation will concentrate on the author's research with complexes of the late transition metals and include the search for superior methodologies in hyd

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26

Wang, Lei, Zhen Chen, Manyuan Ma, Wenzeng Duan, Chun Song та Yudao Ma. "Synthesis and application of a dual chiral [2.2]paracyclophane-based N-heterocyclic carbene in enantioselective β-boration of acyclic enones". Organic & Biomolecular Chemistry 13, № 43 (2015): 10691–98. http://dx.doi.org/10.1039/c5ob01609f.

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27

Hultzsch, Kai?C. "Transition Metal-Catalyzed Asymmetric Hydroamination of Alkenes (AHA)." Advanced Synthesis & Catalysis 347, no. 2-3 (2005): 367–91. http://dx.doi.org/10.1002/adsc.200404261.

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28

Gong, Liu-Zhu, Pu-Sheng Wang, and Meng-Lan Shen. "Transition-Metal-Catalyzed Asymmetric Allylation of Carbonyl Compounds with Unsaturated Hydrocarbons." Synthesis 50, no. 05 (2017): 956–67. http://dx.doi.org/10.1055/s-0036-1590986.

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The asymmetric allylation of carbonyl compounds is an important process for the formation of carbon–carbon bonds, generating optically active homoallylic alcohols that are versatile building blocks with widespread applications in organic synthesis. The use of readily available unsaturated hydrocarbons as allylating reagents in the transition-metal-catalyzed asymmetric allylation has received increasing interest as either a step- or an atom-economy alternative. This review summarizes transition-metal-catalyzed enantioselective allylations on the basis of the ‘indirect’ and ‘direct’ use of simpl

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29

Song, Liangliang, Lei Gong, and Eric Meggers. "Asymmetric dual catalysis via fragmentation of a single rhodium precursor complex." Chemical Communications 52, no. 49 (2016): 7699–702. http://dx.doi.org/10.1039/c6cc03157a.

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A strategy for dual transition metal catalysis and organocatalysis is reported via disintegration of a single rhodium complex. Conveniently, the chiral-at-metal rhodium precatalyst can be synthesized in just two steps starting from rhodium trichloride without the need for any chromatography.

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30

Ohmatsu, Kohsuke, and Takashi Ooi. "Development of Ion-Paired Chiral Ligands for Asymmetric Transition-Metal Catalysis." Journal of Synthetic Organic Chemistry, Japan 73, no. 2 (2015): 140–50. http://dx.doi.org/10.5059/yukigoseikyokaishi.73.140.

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31

Rastelli, Ettore J., Ngoc T. Truong, and Don M. Coltart. "Asymmetric Induction in Hydroacylation by Cooperative Iminium Ion–Transition-Metal Catalysis." Organic Letters 18, no. 21 (2016): 5588–91. http://dx.doi.org/10.1021/acs.orglett.6b02825.

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32

Bellini, Rosalba, Jarl Ivar van der Vlugt, and Joost N. H. Reek. "ChemInform Abstract: Supramolecular Self-Assembled Ligands in Asymmetric Transition Metal Catalysis." ChemInform 43, no. 47 (2012): no. http://dx.doi.org/10.1002/chin.201247262.

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33

Klussmann, Martin. "Asymmetric Reductive Amination by Combined Brønsted Acid and Transition-Metal Catalysis." Angewandte Chemie International Edition 48, no. 39 (2009): 7124–25. http://dx.doi.org/10.1002/anie.200903765.

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34

Chen, Jianhui, and Zhan Lu. "Asymmetric hydrofunctionalization of minimally functionalized alkenes via earth abundant transition metal catalysis." Organic Chemistry Frontiers 5, no. 2 (2018): 260–72. http://dx.doi.org/10.1039/c7qo00613f.

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35

Phansavath, Phannarath, Virginie Ratovelomanana-Vidal, Ricardo Molina Betancourt, Pierre-Georges Echeverria, and Tahar Ayad. "Recent Progress and Applications of Transition-Metal-Catalyzed Asymmetric Hydrogenation and Transfer Hydrogenation of Ketones and Imines through Dynamic Kinetic Resolution." Synthesis 53, no. 01 (2020): 30–50. http://dx.doi.org/10.1055/s-0040-1705918.

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AbstractBased on the ever-increasing demand for enantiomerically pure compounds, the development of efficient, atom-economical, and sustainable methods to produce chiral alcohols and amines is a major concern. Homogeneous asymmetric catalysis with transition-metal complexes including asymmetric hydrogenation (AH) and transfer hydrogenation (ATH) of ketones and imines through dynamic kinetic resolution (DKR) allowing the construction of up to three stereogenic centers is the main focus of the present short review, emphasizing the development of new catalytic systems combined to new classes of s

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36

Tan, Choon-Hong, and Benjamin List. "Cluster Preface: Asymmetric Brønsted Base Catalysis." Synlett 28, no. 11 (2017): 1270–71. http://dx.doi.org/10.1055/s-0036-1590548.

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Choon-Hong Tan is a professor at the Division of Chemistry and Biological Chemistry, Nanyang Technological University, Singapore. He received his BSc (Hons) First Class from the National University of Singapore (NUS) and his Phd from the University of Cambridge. He underwent postdoctoral training at the Department of Chemistry and Chemical Biology, Harvard University and the Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School. He began his independent career at the Department of Chemistry, National University of Singapore in 2003. Choon Hong has focused on the

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37

Godoi, Marcelo, Márcio W. Paixão, and Antonio L. Braga. "Chiral organoselenium-transition-metal catalysts in asymmetric transformations." Dalton Transactions 40, no. 43 (2011): 11347. http://dx.doi.org/10.1039/c1dt11022e.

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38

GENET, J. P. "ChemInform Abstract: Transition Metal Catalysts for Asymmetric Reduction." ChemInform 27, no. 51 (2010): no. http://dx.doi.org/10.1002/chin.199651334.

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39

Abdi, S. H. R., R. I. Kureshy, N. H. Khan, and R. V. Jasra. "Asymmetric Epoxidation of Non-Functionalized Alkenes Using Transition Metal Complexes." Catalysis Surveys from Asia 8, no. 3 (2004): 187–97. http://dx.doi.org/10.1023/b:cats.0000038537.27684.b4.

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40

Charette, André B., and Jean-Emmanuel Bouchard. "Catalytic asymmetric synthesis of cyclopropylphosphonates Catalysts' scope and reactivity." Canadian Journal of Chemistry 83, no. 6-7 (2005): 533–42. http://dx.doi.org/10.1139/v05-074.

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The transition metal-catalyzed cyclopropanation of alkenes using α-diazomethylphosphonates leads to cyclopropylphosphonate derivatives in high yields. The reaction proceeds well with copper, rhodium, and ruthenium catalysts. The best catalysts for the enantioselective version are either Evans' Cu·bis(oxazoline) or Nishiyama's Ru·pybox.Key words: cyclopropylphosphonic acids, copper catalysts, ruthenium catalysts, cyclopropanation, diazo reagents.

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41

Nishiyama, Hisao, and Jun-Ichi Ito. "Bis(oxazolinyl)phenyl transition metal complexes: synthesis, asymmetric catalysis, and coordination chemistry." Chemical Record 7, no. 3 (2007): 159–66. http://dx.doi.org/10.1002/tcr.20114.

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42

Masson‐Makdissi, Jeanne, Liher Prieto, Xavier Abel‐Snape, and Mark Lautens. "Enantio‐ and Diastereodivergent Sequential Catalysis Featuring Two Transition‐Metal‐Catalyzed Asymmetric Reactions." Angewandte Chemie International Edition 60, no. 31 (2021): 16932–36. http://dx.doi.org/10.1002/anie.202105800.

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43

Masson‐Makdissi, Jeanne, Liher Prieto, Xavier Abel‐Snape, and Mark Lautens. "Enantio‐ and Diastereodivergent Sequential Catalysis Featuring Two Transition‐Metal‐Catalyzed Asymmetric Reactions." Angewandte Chemie 133, no. 31 (2021): 17069–73. http://dx.doi.org/10.1002/ange.202105800.

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44

Diao, Tianning, and David Anthony. "Asymmetric Reductive Dicarbofunctionalization of Alkenes via Nickel Catalysis." Synlett 31, no. 15 (2020): 1443–47. http://dx.doi.org/10.1055/s-0040-1707900.

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Alkenes are an appealing functional group that can be transformed into a variety of structures. Transition-metal catalyzed dicarbofunctionalization of alkenes can efficiently afford products with complex substitution patterns from simple substrates. Under reductive conditions, this transformation can be achieved while avoiding stoichiometric organometallic reagents. Asymmetric difunctionalization of alkenes has been underdeveloped, in spite of its potential synthetic utility. Herein, we present a summary of our efforts to control enantioselectivity for alkene diarylation with a nickel catalyst

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45

Tian, Yingying, Le'an Hu, Yuan-Zheng Wang, Xumu Zhang, and Qin Yin. "Recent advances on transition-metal-catalysed asymmetric reductive amination." Organic Chemistry Frontiers 8, no. 10 (2021): 2328–42. http://dx.doi.org/10.1039/d1qo00300c.

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46

Li, Longfei, Yuhui Pan, and Ming Lei. "The enantioselectivity in asymmetric ketone hydrogenation catalyzed by RuH2(diphosphine)(diamine) complexes: insights from a 3D-QSSR and DFT study." Catalysis Science & Technology 6, no. 12 (2016): 4450–57. http://dx.doi.org/10.1039/c5cy01225b.

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The 3D-QSSR method was carried out to investigate the enantioselectivity of the asymmetric ketone hydrogenation (AKH) catalyzed by RuH<sub>2</sub>(diphosphine)(diamine) complexes integrating with DFT method, which could provide a way to design homogeneous transition-metal catalysts.

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47

Kočovský, Pavel, and Andrei V. Malkov. "Asymmetric synthesis: From transition metals to organocatalysis." Pure and Applied Chemistry 80, no. 5 (2008): 953–66. http://dx.doi.org/10.1351/pac200880050953.

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Umpolung in the allylation reaction is discussed with examples drawn from transition-metal-catalyzed allylic substitution (with the allylic unit acting as an electrophile) and Lewis base-catalyzed allylation of aldehydes with allyltrichlorosilane (with the allyl acting as a nucleophile). Iridium-catalyzed electrophilic allylation of O-nucleophiles has been employed in our new approach to C-nucleoside analogs, where the C-O bond (rather than C-C) was constructed stereospecifically. Variation of the absolute configuration in the starting segments allowed the synthesis of all four combinations of

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48

Ikariya, Takao, Kunihiko Murata, and Ryoji Noyori. "Bifunctional transition metal-based molecular catalysts for asymmetric syntheses." Org. Biomol. Chem. 4, no. 3 (2006): 393–406. http://dx.doi.org/10.1039/b513564h.

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49

Bolm, Carsten. "Enantioselective Transition Metal-Catalyzed Hydrogenation for the Asymmetric Synthesis of Amines." Angewandte Chemie International Edition in English 32, no. 2 (1993): 232–33. http://dx.doi.org/10.1002/anie.199302321.

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50

Yu, Bin, Hui Xing, De-Quan Yu, and Hong-Min Liu. "Catalytic asymmetric synthesis of biologically important 3-hydroxyoxindoles: an update." Beilstein Journal of Organic Chemistry 12 (May 18, 2016): 1000–1039. http://dx.doi.org/10.3762/bjoc.12.98.

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Oxindole scaffolds are prevalent in natural products and have been recognized as privileged substructures in new drug discovery. Several oxindole-containing compounds have advanced into clinical trials for the treatment of different diseases. Among these compounds, enantioenriched 3-hydroxyoxindole scaffolds also exist in natural products and have proven to possess promising biological activities. A large number of catalytic asymmetric strategies toward the construction of 3-hydroxyoxindoles based on transition metal catalysis and organocatalysis have been reported in the last decades. Additio

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