1
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Goethe O, DiBello M, Herzon SB. Total synthesis of structurally diverse pleuromutilin antibiotics. Nat Chem 2022; 14:1270-1277. [PMID: 36163267 PMCID: PMC9633427 DOI: 10.1038/s41557-022-01027-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 07/21/2022] [Indexed: 11/08/2022]
Abstract
The emergence of drug-resistant bacterial pathogens has placed renewed emphasis on the total chemical synthesis of novel antibacterials. Tetracyclines, macrolides, streptogramins and lincosamides are now accessible through flexible and general synthetic routes. Pleuromutilins (antibiotics based on the fungal metabolite pleuromutilin) have remained resistant to this approach, in large part due to the difficulties encountered in the de novo construction of the decahydro-3a,9-propanocyclopenta[8]annulene skeleton. Here we present a platform for the total synthesis of pleuromutilins that provides access to diverse derivatives bearing alterations at previously inaccessible skeletal and peripheral positions. The synthesis is enabled by the serendipitous discovery of a vinylogous Wolff rearrangement, which serves to establish the C9 quaternary centre in the targets, and the development of a highly diastereoselective butynylation of an α-quaternary aldehyde, which forms the C14 secondary alcohol. The versatility of the route is demonstrated through the synthesis of seventeen structurally distinct derivatives, with many possessing potent antibacterial activity.
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Affiliation(s)
- Olivia Goethe
- Department of Chemistry, Yale University, New Haven, CT, USA
| | - Mikaela DiBello
- Department of Chemistry, Yale University, New Haven, CT, USA
| | - Seth B Herzon
- Department of Chemistry, Yale University, New Haven, CT, USA.
- Department of Pharmacology, Yale School of Medicine, New Haven, CT, USA.
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2
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Peng X, Hirao Y, Yabu S, Sato H, Higashi M, Akai T, Masaoka S, Mitsunuma H, Kanai M. A Catalytic Alkylation of Ketones via sp3 C-H Bond Activation. J Org Chem 2022; 88:6333-6346. [PMID: 35649206 DOI: 10.1021/acs.joc.2c00603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
We identified a ternary hybrid catalyst system composed of an acridinium photoredox catalyst, a thiophosphoric imide (TPI) catalyst, and a titanium complex catalyst that promoted an intermolecular addition reaction of organic molecules with various ketones through sp3 C-H bond activation. The thiyl radical generated via single-electron oxidation of TPI by the excited photoredox catalyst abstracted a hydrogen atom from organic molecules such as toluene, benzyl alcohol, alkenes, aldehydes, and THF. The thus-generated carbon-centered radical species underwent addition to ketones and aldehydes. This intrinsically unfavorable step was promoted by single-electron reduction of the intermediate alkoxy radical by catalytically generated titanium(III) species. This reaction provided an efficient and straightforward route to a broad range of tertiary alcohols and was successfully applied to late-stage functionalization of drugs or their derivatives. The proposed mechanism was supported by both experimental and theoretical studies.
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Affiliation(s)
- Xue Peng
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
| | - Yuki Hirao
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
| | - Shunsuke Yabu
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Hirofumi Sato
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan.,Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Kyoto 615-8520, Japan.,Fukui Institute for Fundamental Chemistry, Kyoto University, Kyoto 606-8103, Japan
| | - Masahiro Higashi
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan.,Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Kyoto 615-8520, Japan
| | - Takuya Akai
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | - Shigeyuki Masaoka
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | - Harunobu Mitsunuma
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
| | - Motomu Kanai
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
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3
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Mondal B, Roy UK. Making and breaking of Zn–C bonds in the cases of allyl and propargyl organozincs. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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4
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Calogero F, Gualandi A, Matteo MD, Potenti S, Fermi A, Bergamini G, Cozzi PG. Photoredox Propargylation of Aldehydes Catalytic in Titanium. J Org Chem 2021; 86:7002-7009. [PMID: 33884879 PMCID: PMC8279488 DOI: 10.1021/acs.joc.1c00521] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
![]()
A practical and effective
photoredox propargylation of aldehydes
promoted by 10 mol % of [Cp2TiCl2] is presented.
No stoichiometric metals or scavengers are used for the process. A
catalytic amount of the cheap and simply prepared organic dye 3DPAFIPN
is used as the reductant for titanium. The reaction displayed a broad
scope, and no traces of allenyl isomers were detected for simple propargyl
bromide, whereas mixtures of propargyl and allenyl isomers were observed
for substituted propargyl bromides.
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Affiliation(s)
- Francesco Calogero
- Alma Mater Studiorum, Università di Bologna, Dipartimento di Chimica "G. Ciamician", Via Selmi 2, 40126 Bologna, Italy
| | - Andrea Gualandi
- Alma Mater Studiorum, Università di Bologna, Dipartimento di Chimica "G. Ciamician", Via Selmi 2, 40126 Bologna, Italy
| | - Marco Di Matteo
- Alma Mater Studiorum, Università di Bologna, Dipartimento di Chimica "G. Ciamician", Via Selmi 2, 40126 Bologna, Italy
| | - Simone Potenti
- Alma Mater Studiorum, Università di Bologna, Dipartimento di Chimica "G. Ciamician", Via Selmi 2, 40126 Bologna, Italy.,Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
| | - Andrea Fermi
- Alma Mater Studiorum, Università di Bologna, Dipartimento di Chimica "G. Ciamician", Via Selmi 2, 40126 Bologna, Italy
| | - Giacomo Bergamini
- Alma Mater Studiorum, Università di Bologna, Dipartimento di Chimica "G. Ciamician", Via Selmi 2, 40126 Bologna, Italy
| | - Pier Giorgio Cozzi
- Alma Mater Studiorum, Università di Bologna, Dipartimento di Chimica "G. Ciamician", Via Selmi 2, 40126 Bologna, Italy
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5
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Martínez AR, Morales LP, Ojeda ED, Rodríguez MC, Rodríguez-García I. The Proven Versatility of Cp 2TiCl. J Org Chem 2020; 86:1311-1329. [PMID: 33147037 DOI: 10.1021/acs.joc.0c01233] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
In the last two decades, titanocene monochloride has been postulated as a monoelectronic transfer reagent capable of catalyzing an important variety of chemical transformations. In this Perspective, our contributions to this growing field of research are summarized and analyzed. Especially known have been our contributions in C-C bond formation reactions, hydrogen-atom transfer from water to radicals, and isomerization reactions, as well as the development of a catalytic cycle that has subsequently allowed the preparation of a great variety of natural terpenes. It is also worth mentioning our contribution in the postulation of this single-electron transfer agent (SET) as a new green catalyst with a broad range of applications in organic and organometallic chemistry. The most significant catalytic processes developed by other research groups are also briefly described, with special emphasis on the reaction mechanisms involved. Finally, a reflection is made on the future trends in the research of this SET, aimed at consolidating this chemical as a new green reagent that will be widely used in fine chemistry, green chemistry, and industrial chemical processes.
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Affiliation(s)
- Antonio Rosales Martínez
- Department of Chemical Engineering, Escuela Politécnica Superior, University of Sevilla, 41011 Sevilla, Spain
| | - Laura Pozo Morales
- Department of Chemical Engineering, Escuela Politécnica Superior, University of Sevilla, 41011 Sevilla, Spain
| | - Emilio Díaz Ojeda
- Department of Chemical Engineering, Escuela Politécnica Superior, University of Sevilla, 41011 Sevilla, Spain
| | - María Castro Rodríguez
- Department of Chemical Engineering, Escuela Politécnica Superior, University of Sevilla, 41011 Sevilla, Spain
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6
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Fermi A, Gualandi A, Bergamini G, Cozzi PG. Shining Light on Ti
IV
Complexes: Exceptional Tools for Metallaphotoredox Catalysis. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000966] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Andrea Fermi
- Dipartimento di Chimica "G. Ciamician" Università di Bologna via Selmi 2 40126 Bologna Italy
| | - Andrea Gualandi
- Dipartimento di Chimica "G. Ciamician" Università di Bologna via Selmi 2 40126 Bologna Italy
| | - Giacomo Bergamini
- Dipartimento di Chimica "G. Ciamician" Università di Bologna via Selmi 2 40126 Bologna Italy
| | - Pier Giorgio Cozzi
- Dipartimento di Chimica "G. Ciamician" Università di Bologna via Selmi 2 40126 Bologna Italy
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7
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Sudha AJ, Aslam NA, Sandhu A, Yasuda M, Baba A, Babu SA. Synthesis of β-cyanoalanine and enantiomerically enriched aspartate derivatives via the Zn- or In-mediated nucleophilic addition to α-imino esters. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131217] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Umaña CA, Cabezas JA. Palladium-Catalyzed One-Pot Conversion of Aldehydes and Ketones into 4-Substituted Homopropargyl Alcohols and 5-En-3-yn-1-ols †. J Org Chem 2017; 82:9505-9514. [PMID: 28841317 DOI: 10.1021/acs.joc.7b01529] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Sequential treatment of 2,3-dichloropropene with magnesium and n-BuLi generated the equivalent of 1,3-dilithiopropyne, which adds regiospecifically to aldehydes and ketones to produce homopropargyl alcohols. The lithium acetylide intermediate formed in this protocol can be further reacted with aromatic and vinyl halides, under palladium catalysis, to produce 4-substituted homopropargyl alcohols and 5-en-3-yn-1-ols, respectively, in one-pot with good overall yields.
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Affiliation(s)
- Christian A Umaña
- Escuela de Química, Universidad de Costa Rica , San José, 2060, Costa Rica
| | - Jorge A Cabezas
- Escuela de Química, Universidad de Costa Rica , San José, 2060, Costa Rica
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9
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Castro Rodríguez M, Rodríguez García I, Rodríguez Maecker RN, Pozo Morales L, Oltra JE, Rosales Martínez A. Cp2TiCl: An Ideal Reagent for Green Chemistry? Org Process Res Dev 2017. [DOI: 10.1021/acs.oprd.7b00098] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- María Castro Rodríguez
- Department
of Chemical Engineering, Escuela Politécnica Superior, University of Sevilla, 41011 Sevilla, Spain
| | | | | | - Laura Pozo Morales
- Department
of Chemical Engineering, Escuela Politécnica Superior, University of Sevilla, 41011 Sevilla, Spain
| | - J. Enrique Oltra
- Department
of Organic Chemistry, Faculty of Science, University of Granada, 18071 Granada, Spain
| | - Antonio Rosales Martínez
- Department
of Chemical Engineering, Escuela Politécnica Superior, University of Sevilla, 41011 Sevilla, Spain
- Petrochemical
Engineering, Universidad de las Fuerzas Armadas-ESPE, 050150 Latacunga, Ecuador
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10
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Wen Y, Chen G, Huang S, Tang Y, Yang J, Zhang Y. The Barbier-Grignard-Type Arylation of Ketones and Unexpected Cross-Coupling of Phenolic Ketones using Unactivated Aryl Bromides. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500743] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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11
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Ruiz-Muelle AB, Oña-Burgos P, Ortuño MA, Oltra JE, Rodríguez-García I, Fernández I. Unprecedented Spectroscopic and Computational Evidence for Allenyl and Propargyl Titanocene(IV) Complexes: Electrophilic Quenching of Their Metallotropic Equilibrium. Chemistry 2016; 22:2427-39. [PMID: 26786999 DOI: 10.1002/chem.201504281] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Indexed: 11/10/2022]
Abstract
The synthesis and structural characterization of allenyl titanocene(IV) [TiClCp2 (CH=C=CH2 )] 3 and propargyl titanocene(IV) [TiClCp2 (CH2 -C≡C-(CH2 )4 CH3 )] 9 have been described for the first time. Advanced NMR methods including diffusion NMR methods (diffusion pulsed field gradient stimulated spin echo (PFG-STE) and DOSY) have been applied and established that these organometallics are monomers in THF solution with hydrodynamic radii (from the Stokes-Einstein equation) of 3.5 and 4.1 Å for 3 and 9, respectively. Full (1) H, (13) C, Δ(1) H, and Δ(13) C NMR data are given, and through the analysis of the Ramsey equation, the first electronic insights into these derivatives are provided. In solution, they are involved in their respective metallotropic allenyl-propargyl equilibria that, after quenching experiments with aromatic and aliphatic aldehydes, ketones, and protonating agents, always give the propargyl products P (when carbonyls are employed), or allenyl products A (when a proton source is added) as the major isomers. In all the cases assayed, the ratio of products suggests that the metallotropic equilibrium should be faster than the reactions of 3 and 9 with electrophiles. Indeed, DFT calculations predict lower Gibbs energy barriers for the metallotropic equilibrium, thus confirming dynamic kinetic resolution.
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Affiliation(s)
- Ana Belén Ruiz-Muelle
- Department of Chemistry and Physics, ceiA3, Universidad de Almería, Carretera de Sacramento s/n, Almería, 04120, Spain
| | - Pascual Oña-Burgos
- Department of Chemistry and Physics, ceiA3, Universidad de Almería, Carretera de Sacramento s/n, Almería, 04120, Spain
| | - Manuel A Ortuño
- Departament de Química, Universitat Autònoma de Barcelona, Edifici C.n, Barcelona, Cerdanyola del Vallès, 08193, Spain.,Department of Chemistry, University of Minnesota, Minneapolis, Minnesota, 55455-0431, USA
| | - J Enrique Oltra
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Granada, Campus Fuentenueva s/n, Granada, 18071, Spain
| | - Ignacio Rodríguez-García
- Department of Chemistry and Physics, ceiA3, Universidad de Almería, Carretera de Sacramento s/n, Almería, 04120, Spain
| | - Ignacio Fernández
- Department of Chemistry and Physics, ceiA3, Universidad de Almería, Carretera de Sacramento s/n, Almería, 04120, Spain. .,BITAL, Research Centre for Agricultural and Food Biotechnology, Carretera de Sacramento s/n, Almería, Spain.
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12
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Khan FA, Budanur BM. Superoxide mediated isomerization of 4-aryl-but-1-ynes to 1-aryl-1,3-butadienes. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.07.075] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Rosales A, Rodríguez-García I, Muñoz-Bascón J, Roldan-Molina E, Padial NM, Morales LP, García-Ocaña M, Oltra JE. The Nugent Reagent: A Formidable Tool in Contemporary Radical and Organometallic Chemistry. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500292] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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14
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Aslam NA, Babu SA, Rani S, Mahajan S, Solanki J, Yasuda M, Baba A. Diastereoselective Construction of 3-Aminooxindoles with Adjacent Stereocenters: Stereocontrolled Addition of γ-Substituted Allylindiums to Isatin Ketimines. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500340] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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15
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Gianino JB, Campos CA, Lepore AJ, Pinkerton DM, Ashfeld BL. Redox and Lewis Acid Relay Catalysis: A Titanocene/Zinc Catalytic Platform in the Development of Multicomponent Coupling Reactions. J Org Chem 2014; 79:12083-95. [DOI: 10.1021/jo501890z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Joseph B. Gianino
- Department of Chemistry and
Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Catherine A. Campos
- Department of Chemistry and
Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Antonio J. Lepore
- Department of Chemistry and
Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - David M. Pinkerton
- Department of Chemistry and
Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Brandon L. Ashfeld
- Department of Chemistry and
Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
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16
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Meloche JL, Vednor PT, Gianino JB, Oliver AG, Ashfeld BL. Titanocene-catalyzed metallation of propargylic acetates in homopropargyl alcohol synthesis. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.07.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Liu L, Zhang Y, Zhang H, Huang K, Gao BX, Zou M, Zhou X, Wang H, Li J. The metal tin promoted cascade reaction of ketones in aqueous media for the construction of 2-bromo-4-aryl-1,3-pentadiene. Org Biomol Chem 2014; 12:5393-9. [PMID: 24931775 DOI: 10.1039/c4ob00584h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel type of transformation was discovered serendipitously during the Barbier-type allenylation reaction of aromatic ketones promoted by the metal, tin, in aqueous media. Additionally, a series of new, highly functionalized 2-bromo-4-aryl-1,3-pentadienes could be obtained with good yields in this reaction. This cascade reaction shows the unique properties of the metal, tin. Furthermore, it is actually a cascade reaction which involves two steps: one is the Barbier-type allenylation of the carbonyl compound, and the other is an SN2' type addition-elimination reaction. Notably, this reaction has the advantages of simple, mild conditions and is easy to operate. Furthermore, the corresponding product could be applied to various coupling reactions or other diversified transformations.
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Affiliation(s)
- Lingyan Liu
- The State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Wiejin Road 94#, Nankai District, Tianjin, 300071, China.
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18
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Morcillo SP, Miguel D, Resa S, Martín-Lasanta A, Millán A, Choquesillo-Lazarte D, García-Ruiz JM, Mota AJ, Justicia J, Cuerva JM. Ti(III)-catalyzed cyclizations of ketoepoxypolyprenes: control over the number of rings and unexpected stereoselectivities. J Am Chem Soc 2014; 136:6943-51. [PMID: 24766517 DOI: 10.1021/ja411942h] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We describe a new strategy to control the number of cyclization steps in bioinspired radical (poly)cyclizations involving epoxypolyenes containing keto units positioned along the polyene chain. This approach provides an unprecedentedly straightforward access to natural terpenoids with pendant unsaturated side chains. Additionally, in the case of bi- and tricyclizations, decalins with cis stereochemistry have been obtained as a consequence of the presence of the ketone. The preferential formation of cis-fused adducts was rationalized using DFT calculations. This result is completely unprecedented in biomimetic cyclizations and permits the access to natural terpenoids with this stereochemistry, as well as to non-natural analogues.
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Affiliation(s)
- Sara P Morcillo
- Department of Organic Chemistry and ‡Department of Inorganic Chemistry, Faculty of Sciences, University of Granada , C. U. Fuentenueva s/n, 18071 Granada, Spain
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19
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Saito T, Nishiyama H, Tanahashi H, Kawakita K, Tsurugi H, Mashima K. 1,4-Bis(trimethylsilyl)-1,4-diaza-2,5-cyclohexadienes as Strong Salt-Free Reductants for Generating Low-Valent Early Transition Metals with Electron-Donating Ligands. J Am Chem Soc 2014; 136:5161-70. [DOI: 10.1021/ja501313s] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Teruhiko Saito
- Department
of Chemistry, Graduate School of Engineering Science, Osaka University, and CREST, JST, Toyonaka, Osaka 560-8531, Japan
| | - Haruka Nishiyama
- Department
of Chemistry, Graduate School of Engineering Science, Osaka University, and CREST, JST, Toyonaka, Osaka 560-8531, Japan
| | - Hiromasa Tanahashi
- Department
of Chemistry, Graduate School of Engineering Science, Osaka University, and CREST, JST, Toyonaka, Osaka 560-8531, Japan
| | - Kento Kawakita
- Department
of Chemistry, Graduate School of Engineering Science, Osaka University, and CREST, JST, Toyonaka, Osaka 560-8531, Japan
| | - Hayato Tsurugi
- Department
of Chemistry, Graduate School of Engineering Science, Osaka University, and CREST, JST, Toyonaka, Osaka 560-8531, Japan
| | - Kazushi Mashima
- Department
of Chemistry, Graduate School of Engineering Science, Osaka University, and CREST, JST, Toyonaka, Osaka 560-8531, Japan
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20
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Muñoz-Bascón J, Hernández-Cervantes C, Padial NM, Álvarez-Corral M, Rosales A, Rodríguez-García I, Oltra JE. Ti-Catalyzed Straightforward Synthesis of Exocyclic Allenes. Chemistry 2013; 20:801-10. [DOI: 10.1002/chem.201304033] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Indexed: 11/10/2022]
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21
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Justicia J, Jiménez T, Miguel D, Contreras-Montoya R, Chahboun R, Álvarez-Manzaneda E, Collado-Sanz D, Cárdenas DJ, Cuerva JM. Titanocene(III)-Catalyzed 6-exoVersus 7-endoCyclizations of Epoxypolyprenes: Efficient Control and Synthesis of Versatile Terpenic Building Blocks. Chemistry 2013; 19:14484-95. [DOI: 10.1002/chem.201302575] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Indexed: 11/11/2022]
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22
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Aslam NA, Babu SA, Sudha AJ, Yasuda M, Baba A. Chelation-controlled diastereoselective construction of N-aryl-, N-acyl/tosylhydrazono β-substituted aspartate derivatives via Barbier-type reaction. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.05.130] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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23
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Frey G, Luu HT, Bichovski P, Feurer M, Streuff J. Praktische Titan(III)-katalysierte Synthese von cyclischen Aminoketonen und Pyrrolidinonen - Entwicklung einer formalen [4+1]-Cycloaddition. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302460] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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24
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Frey G, Luu HT, Bichovski P, Feurer M, Streuff J. Convenient Titanium(III)-Catalyzed Synthesis of Cyclic Aminoketones and Pyrrolidinones-Development of a Formal [4+1] Cycloaddition. Angew Chem Int Ed Engl 2013; 52:7131-4. [DOI: 10.1002/anie.201302460] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2013] [Indexed: 11/06/2022]
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25
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Lepore AJ, Pinkerton DM, Ashfeld BL. Relay Redox and Lewis Acid Catalysis in the Titanocene- Catalyzed Multicomponent Assembly of 1,5-Enynes. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300359] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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26
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Campos CA, Gianino JB, Ashfeld BL. Bifunctional titanocene catalysis in multicomponent couplings: a convergent assembly of β-alkynyl ketones. Org Lett 2013; 15:2656-9. [PMID: 23672573 DOI: 10.1021/ol400943a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Herein is described a titanium-catalyzed three-component coupling to assemble β-alkynyl ketones in a single operation. Treatment of an aryl aldehyde with an acetylide and silyl enol ether in the presence of a bifunctional titanocene catalyst enables the highly convergent assembly of β-alkynyl ketones in good to excellent yields.
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Affiliation(s)
- Catherine A Campos
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA
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27
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Kohn BL, Ichiishi N, Jarvo ER. Silver-Catalyzed Allenylation and Enantioselective Propargylation Reactions of Ketones. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201206971] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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28
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Kohn BL, Ichiishi N, Jarvo ER. Silver-Catalyzed Allenylation and Enantioselective Propargylation Reactions of Ketones. Angew Chem Int Ed Engl 2013; 52:4414-7. [DOI: 10.1002/anie.201206971] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Revised: 12/05/2012] [Indexed: 11/07/2022]
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29
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Umpolung of Hemiaminals: Titanocene-Catalyzed Dehydroxylative Radical Coupling Reactions with Activated Alkenes. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201210088] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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30
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Zheng X, Dai XJ, Yuan HQ, Ye CX, Ma J, Huang PQ. Umpolung of Hemiaminals: Titanocene-Catalyzed Dehydroxylative Radical Coupling Reactions with Activated Alkenes. Angew Chem Int Ed Engl 2013; 52:3494-8. [DOI: 10.1002/anie.201210088] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Indexed: 11/11/2022]
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31
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García-Muñoz MJ, Zacconi F, Foubelo F, Yus M. Indium-Promoted Diastereo- and Regioselective Propargylation of Chiral Sulfinylimines. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201410] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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32
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Fleury LM, Kosal AD, Masters JT, Ashfeld BL. Cooperative titanocene and phosphine catalysis: accelerated C-X activation for the generation of reactive organometallics. J Org Chem 2012; 78:253-69. [PMID: 23094703 DOI: 10.1021/jo301726v] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The study presented herein describes a reductive transmetalation approach toward the generation of Grignard and organozinc reagents mediated by a titanocene catalyst. This method enables the metalation of functionalized substrates without loss of functional group compatibility. Allyl zinc reagents and allyl, vinyl, and alkyl Grignard reagents were generated in situ and used in the addition to carbonyl substrates to provide the corresponding carbinols in yields up to 99%. It was discovered that phosphine ligands effectively accelerate the reductive transmetalation event to enable the metalation of C-X bonds at temperatures as low as -40 °C. Performing the reactions in the presence of chiral diamines and amino alcohols led to the enantioselective allylation of aldehydes.
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Affiliation(s)
- Lauren M Fleury
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA
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33
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Gianino JB, Ashfeld BL. Titanocene-catalyzed multicomponent coupling approach to diarylethynyl methanes. J Am Chem Soc 2012; 134:18217-20. [PMID: 23082873 DOI: 10.1021/ja308891e] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A titanocene-catalyzed multicomponent coupling to provide diarylethynyl methanes is described. By combining the multifunctionality of Cp(2)TiCl(2) with the traceless dielectrophilicity of aryl aldehydes, all-carbon tertiary centers are obtained in 55-99% yield.
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Affiliation(s)
- Joseph B Gianino
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA
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34
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Muñoz-Bascón J, Sancho-Sanz I, Álvarez-Manzaneda E, Rosales A, Oltra JE. Highly Selective Barbier-Type Propargylations and Allenylations Catalyzed by Titanocene(III). Chemistry 2012; 18:14479-86. [DOI: 10.1002/chem.201201720] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Indexed: 11/06/2022]
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35
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36
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Jiménez T, Morcillo SP, Martín-Lasanta A, Collado-Sanz D, Cárdenas DJ, Gansäuer A, Justicia J, Cuerva JM. Combining the Power of TiIII-Mediated Processes for Easy Access to Hydroxylated Polycyclic Terpenoids: Synthesis of Sesterstatin 1 and C-D Rings of Aspergilloxide. Chemistry 2012; 18:12825-33. [DOI: 10.1002/chem.201201534] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Indexed: 12/30/2022]
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37
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Allenes in Catalytic Asymmetric Synthesis and Natural Product Syntheses. Angew Chem Int Ed Engl 2012; 51:3074-112. [DOI: 10.1002/anie.201101460] [Citation(s) in RCA: 758] [Impact Index Per Article: 63.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Indexed: 02/06/2023]
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38
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Yu S, Ma S. Allene in katalytischer asymmetrischer Synthese und Naturstoffsynthese. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201101460] [Citation(s) in RCA: 254] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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39
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Haddad TD, Hirayama LC, Buckley JJ, Singaram B. Indium-Mediated Asymmetric Barbier-Type Propargylations: Additions to Aldehydes and Ketones and Mechanistic Investigation of the Organoindium Reagents. J Org Chem 2012; 77:889-98. [DOI: 10.1021/jo201980b] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Terra D. Haddad
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, 1156 High Street,
Santa Cruz, California 95064, United States
| | - Lacie C. Hirayama
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, 1156 High Street,
Santa Cruz, California 95064, United States
| | - Jannise J. Buckley
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, 1156 High Street,
Santa Cruz, California 95064, United States
| | - Bakthan Singaram
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, 1156 High Street,
Santa Cruz, California 95064, United States
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40
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Hosseini-Sarvari M, Mardaneh Z. Solvent-free Synthesis of Propargylic Alcohols using ZnO as a New and Reusable Catalyst by Direct Addition of Alkynes to Aldehydes. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.12.4297] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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41
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Yus M, González-Gómez JC, Foubelo F. Catalytic Enantioselective Allylation of Carbonyl Compounds and Imines. Chem Rev 2011; 111:7774-854. [DOI: 10.1021/cr1004474] [Citation(s) in RCA: 561] [Impact Index Per Article: 43.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Miguel Yus
- Departamento de Química Orgánica, Facultad de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - José C. González-Gómez
- Departamento de Química Orgánica, Facultad de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - Francisco Foubelo
- Departamento de Química Orgánica, Facultad de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
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42
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Barnett DS, Schaus SE. Asymmetric propargylation of ketones using allenylboronates catalyzed by chiral biphenols. Org Lett 2011; 13:4020-3. [PMID: 21732609 PMCID: PMC3155969 DOI: 10.1021/ol201535b] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Chiral biphenols catalyze the enantioselective asymmetric propargylation of ketones using allenylboronates. The reaction uses 10 mol % of 3,3'-Br(2)-BINOL as the catalyst and allenyldioxoborolane as the nucleophile, in the absence of solvent, and under microwave irradiation to afford the homopropargylic alcohol. The reaction products are obtained in good yields (60-98%) and high enantiomeric ratios (3:1-99:1). Diastereoselective propargylations using chiral racemic allenylboronates result in good diastereoselectivities (dr >86:14) and enantioselectivities (er >92:8) under the catalytic conditions.
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Affiliation(s)
- David S. Barnett
- Department of Chemistry, Life Science and Engineering Building, Boston University, 24 Cummington Street, Boston, Massachusetts, 02215
| | - Scott E. Schaus
- Department of Chemistry, Life Science and Engineering Building, Boston University, 24 Cummington Street, Boston, Massachusetts, 02215
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43
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Fandrick KR, Fandrick DR, Reeves JT, Gao J, Ma S, Li W, Lee H, Grinberg N, Lu B, Senanayake CH. A general copper-BINAP-catalyzed asymmetric propargylation of ketones with propargyl boronates. J Am Chem Soc 2011; 133:10332-5. [PMID: 21639096 DOI: 10.1021/ja2028958] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An operationally simple copper-BINAP-catalyzed, highly enantioselective propargylation of ketones is presented. The methodology was developed as an enantioselective process for methyl ethyl ketone and shown to be applicable to a wide variety of prochiral ketones. The resulting homopropargyl adducts are versatile latent carbonyls from which γ-butyrolactones, β-hydroxy methyl ketones, and β-hydroxycarboxylates are readily obtained.
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Affiliation(s)
- Keith R Fandrick
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, USA.
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44
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Streuff J. A titanium(III)-catalyzed redox umpolung reaction for the reductive cross-coupling of enones with acrylonitriles. Chemistry 2011; 17:5507-10. [PMID: 21488110 DOI: 10.1002/chem.201100501] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2011] [Indexed: 11/06/2022]
Affiliation(s)
- Jan Streuff
- Institut für Organische Chemie und Biochemie, Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, 79104 Freiburg i. Br., Germany.
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45
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Millán A, Campaña AG, Bazdi B, Miguel D, Álvarez de Cienfuegos L, Echavarren AM, Cuerva JM. Ti/Pd Bimetallic Systems for the Efficient Allylation of Carbonyl Compounds and Homocoupling Reactions. Chemistry 2011; 17:3985-94. [DOI: 10.1002/chem.201003315] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2010] [Indexed: 11/09/2022]
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46
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Affiliation(s)
- Chang-Hua Ding
- State Key Laboratory of Organometallic Chemistry, §Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xue-Long Hou
- State Key Laboratory of Organometallic Chemistry, §Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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47
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Sancho-Sanz I, Miguel D, Millán A, Estévez RE, Oller-López JL, Álvarez-Manzaneda E, Robles R, Cuerva JM, Justicia J. Titanocene(III)-promoted Barbier-type crotylation of carbonyl compounds. J Org Chem 2011; 76:732-5. [PMID: 21190366 DOI: 10.1021/jo102269d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A mild, highly regio- and stereoselective method for the crotylation of aldehydes and ketones mediated/catalyzed by titanocene(III) is described. Optimized conditions permit the selective generation of γ-adducts in high yields together with high stereoselectivity, with a predominance of anti stereoisomers.
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Affiliation(s)
- Iris Sancho-Sanz
- Department of Organic Chemistry, Faculty of Sciences, University of Granada, C. U. Fuentenueva s/n, 18071 Granada, Spain
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48
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Jahn U. Radicals in transition metal catalyzed reactions? transition metal catalyzed radical reactions? a fruitful interplay anyway: part 1. Radical catalysis by group 4 to group 7 elements. Top Curr Chem (Cham) 2011; 320:121-89. [PMID: 22025066 DOI: 10.1007/128_2011_261] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This review summarizes the current status of radical-based transition metal catalyzed reactions in organic chemistry. The underlying features of radical generation from transition metal complexes and radical reactivity in the framework of transition metal catalysis are discussed. The available arsenal to detect radicals in transition metal catalyzed transformations is presented. Available strategies to combine radical intermediates with transition metal catalysis are outlined. In the main part the currently known synthetic methodology of transition metal catalyzed reactions proceeding via radical intermediates is discussed. This part covers catalytic radical reactions involving group 4 to group 7 elements.
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Affiliation(s)
- Ullrich Jahn
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo namesti 2, 16610, Prague 6, Czech Republic.
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49
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Millán A, de Cienfuegos LÁ, Martín-Lasanta A, Campaña AG, Cuerva JM. Titanium/Palladium-Mediated Regioselective Propargylation of Ketones using Propargylic Carbonates as Pronucleophiles. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000655] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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50
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Usanov DL, Yamamoto H. Asymmetric Nozaki-Hiyama Propargylation of Aldehydes: Enhancement of Enantioselectivity by Cobalt Co-Catalysis. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201002751] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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