1
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Kasahara R, Toyoda T, Fukasawa S, Takeuchi A, Sato A, Hori A, Kitagawa O. Chirality Transfer Intramolecular Pauson-Khand Reaction with N-C Axially Chiral Sulfonamides Bearing an Ene-Yne Structure. Org Lett 2023; 25:7390-7394. [PMID: 37782042 DOI: 10.1021/acs.orglett.3c02893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
An intramolecular Pauson-Khand reaction with enantioenriched N-C axially chiral N-allyl-N-(2-alkynylphenyl)sulfonamide derivatives proceeded with complete chirality transfer from axial chirality (P configuration) to central chirality (R configuration), affording chiral nitrogen-containing tricyclic compounds (tetrahydrocyclopentaquinolin-2-one derivatives).
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Affiliation(s)
- Ryohei Kasahara
- Department of Applied Chemistry, Shibaura Institute of Technology, 3-7-5 Toyosu, Kohto-ku, Tokyo 135-8548, Japan
| | - Tatsuya Toyoda
- Department of Applied Chemistry, Shibaura Institute of Technology, 3-7-5 Toyosu, Kohto-ku, Tokyo 135-8548, Japan
| | - Sota Fukasawa
- Department of Applied Chemistry, Shibaura Institute of Technology, 3-7-5 Toyosu, Kohto-ku, Tokyo 135-8548, Japan
| | - Aoi Takeuchi
- Department of Applied Chemistry, Shibaura Institute of Technology, 3-7-5 Toyosu, Kohto-ku, Tokyo 135-8548, Japan
| | - Azusa Sato
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Akiko Hori
- Graduate School of Engineering and Science, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan
| | - Osamu Kitagawa
- Department of Applied Chemistry, Shibaura Institute of Technology, 3-7-5 Toyosu, Kohto-ku, Tokyo 135-8548, Japan
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2
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Deihl ED, Jesikiewicz LT, Newman LJ, Liu P, Brummond KM. Rh(I)-Catalyzed Allenic Pauson-Khand Reaction to Access the Thapsigargin Core: Influence of Furan and Allenyl Chloroacetate Groups on Enantioselectivity. Org Lett 2022; 24:995-999. [PMID: 35081313 DOI: 10.1021/acs.orglett.1c03951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Thapsigargin (Tg) is a potent SERCA pump inhibitor with the potential to treat cancer and COVID-19. We have extended the scope of the asymmetric allenic Pauson-Khand reaction to furan-tethered allene-ynes, a stereoconvergent transformation affording the 5,7,5-ring system of Tg in good yields and high enantioselectivity. Computational studies of the oxidative cyclization step show that the furan and chloroacetate groups contribute to this high selectivity.
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Affiliation(s)
- Eric D Deihl
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Luke T Jesikiewicz
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Logan J Newman
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Kay M Brummond
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
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3
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Vine LE, Reeves RD, Landwehr EM, Fernández I, Schomaker JM. Scope and Mechanistic Investigations of Pd-Catalyzed Coupling/Cyclization and Cycloisomerization of Allenyl Malonates. ACS Catal 2021; 11:9485-9494. [DOI: 10.1021/acscatal.1c01847] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Logan E. Vine
- Department of Chemistry, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Ryan D. Reeves
- Department of Chemistry, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Eleanor M. Landwehr
- Department of Chemistry, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Israel Fernández
- Departamento de Orgánica I and Centro de Innovación en Química Avanzada (ORFEO−CINQA), Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Jennifer M. Schomaker
- Department of Chemistry, 1101 University Avenue, Madison, Wisconsin 53706, United States
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4
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Bodinier F, Sanogo Y, Ardisson J, Lannou MI, Sorin G. Low-valent dialkoxytitanium(ii): a useful tool for the synthesis of functionalized seven-membered ring compounds. Chem Commun (Camb) 2021; 57:3603-3606. [PMID: 33710225 DOI: 10.1039/d1cc00081k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we describe unprecedented access to all-carbon or heterocyclic seven-membered ring frameworks from 1,8-ene-ynes promoted by inexpensive low-valent titanium(ii) species, readily available from Ti(OiPr)4 and Grignard reagent. A broad range of cycloheptane, azepane or oxepane derivatives has been obtained (19 examples) with moderate to good yields and an excellent selectivity (up to 95/5 d.r.).
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Affiliation(s)
- Florent Bodinier
- Unité CNRS UMR 8038 Université de Paris, Faculté de Pharmacie, Sorbonne Paris Cité, 4 avenue de l'Observatoire, 75270 Paris Cedex 06, France.
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5
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Li QH, Jiang X, Wu K, Luo RQ, Liang M, Zhang ZH, Huang ZY. Research Progress on the Catalytic Enantioselective Synthesis of Axially Chiral Allenes by Chiral Organocatalysts. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824666200306094427] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Chiral allenes are important structural scaffolds found in many natural products
and drugs, and in addition, they also serve as building blocks for many organic transformations.
The conventional methods for preparing chiral allenes rely on the resolution of
racemic allenes and the chirality transfer between non-racemic propargylic derivatives and
nucleophilic reagents. In recent years, the synthesis of chiral allenes by asymmetric catalysis
has been achieved fruitful results. Among them, enantioselective synthesis of chiral
allenes with chiral organic catalysts is particularly prominent. In this paper, the research
progress of enantioselective synthesis of chiral allenes catalyzed by chiral organic catalysts
in recent years is reviewed, including various reaction systems and synthesis applications.
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Affiliation(s)
- Qing Han Li
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu, China
| | - Xin Jiang
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu, China
| | - Kun Wu
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu, China
| | - Rui Qiang Luo
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu, China
| | - Meng Liang
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu, China
| | - Zhi Hao Zhang
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu, China
| | - Zhe Yao Huang
- College of Chemistry and Environmental Protection Engineering, Southwest Minzu University, Chengdu, China
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6
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Zhou NN, Ning SS, Li LQ, Zhang JY, Fan MJ, Yang DS, Zhu HT. Brønsted-acid-catalyzed one-pot tandem annulation/[5 + 2]-cycloaddition of o-propargyl alcohol benzaldehydes with alkynes: regioselective and stereoselective synthesis of dibenzo[a,f]azulen-12-ones. Org Chem Front 2020. [DOI: 10.1039/d0qo00522c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The one-pot synthesis of dibenzo[a,f]azulen-12-ones has been established starting from o-propargyl alcohol benzaldehydes and alkynes.
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Affiliation(s)
- Ni-Ni Zhou
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - Si-Si Ning
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - Lin-Qiang Li
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - Jie-Yun Zhang
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - Ming-Jin Fan
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - De-Suo Yang
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - Hai-Tao Zhu
- Shannxi Key Laboratory of Phytochemistry
- College of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji 721013
- China
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7
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Han Y, Zhao Y, Ma S. Rhodium-Catalyzed Pauson-Khand-Type Cyclization of 1,5-Allene-Alkynes: A Chirality Transfer Strategy for Optically Active Bicyclic Ketones. Chemistry 2019; 25:9529-9533. [PMID: 31033044 DOI: 10.1002/chem.201900963] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 04/26/2019] [Indexed: 01/10/2023]
Abstract
An efficient chirality transfer in the [RhCl(CO)2 ]2 -catalyzed [2+2+1] cyclization of optically active axially chiral 1,3-disubstituted allenynes with CO to access optically active bicyclopentenone compounds has been developed. The distal C=C bond of allenes reacted with the alknye unit and CO to afford [4.3.0]-bicyclic products with high ee values under mild reaction conditions with an excellent selectivity.
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Affiliation(s)
- Yulin Han
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, P.R. China
| | - Yichuan Zhao
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, P.R. China
| | - Shengming Ma
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, P.R. China.,Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, P.R. China
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8
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Sanogo Y, Othman RB, Dhambri S, Selkti M, Jeuken A, Prunet J, Férézou JP, Ardisson J, Lannou MI, Sorin G. Ti(II) and Rh(I) Complexes as Reagents toward a Thapsigargin Core. J Org Chem 2019; 84:5821-5830. [PMID: 30964681 DOI: 10.1021/acs.joc.8b03249] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A novel approach toward the [5-7]fused bicyclic core of thapsigargin, a subnanomolar inhibitor of the endo/sarcoplasmic calcium ATPase (SERCA), is presented. The synthetic route includes an original Ti(II)-mediated hydroxy-directed reductive coupling of an enantiomerically enriched propargylic alcohol and an intramolecular Rh(I)-catalyzed cyclocarbonylation reaction as key steps. Interestingly, through the first experiments of titanocene-mediated reductive cyclization of a 1,8-enyne, a seven-membered cycle was isolated as a unique product with a total diastereoselectivity.
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Affiliation(s)
- Youssouf Sanogo
- Unité CNRS UMR 8638 , Université Paris Descartes, Faculté de Pharmacie , Sorbonne Paris Cité, 4 Avenue de l'Observatoire , Paris Cedex 06 75270 , France
| | - Raja Ben Othman
- Unité CNRS UMR 8638 , Université Paris Descartes, Faculté de Pharmacie , Sorbonne Paris Cité, 4 Avenue de l'Observatoire , Paris Cedex 06 75270 , France
| | - Sabrina Dhambri
- Unité CNRS UMR 8638 , Université Paris Descartes, Faculté de Pharmacie , Sorbonne Paris Cité, 4 Avenue de l'Observatoire , Paris Cedex 06 75270 , France
| | - Mohamed Selkti
- Unité CNRS UMR 8015 , Université Paris Descartes, Faculté de Pharmacie , Sorbonne Paris Cité, 4 Avenue de l'Observatoire , Paris Cedex 06 75270 , France
| | - Alan Jeuken
- WestCHEM, School of Chemistry , University of Glasgow , Joseph Black Building, University Avenue , Glasgow G12 8QQ , United Kingdom
| | - Joëlle Prunet
- WestCHEM, School of Chemistry , University of Glasgow , Joseph Black Building, University Avenue , Glasgow G12 8QQ , United Kingdom
| | - Jean-Pierre Férézou
- Méthodologie, Synthèse et Molécules Thérapeutiques, ICMMO (CNRS UMR 8182) , Université Paris-Sud, Université Paris-Saclay , Bâtiment 410 , Orsay F-91405 , France
| | - Janick Ardisson
- Unité CNRS UMR 8638 , Université Paris Descartes, Faculté de Pharmacie , Sorbonne Paris Cité, 4 Avenue de l'Observatoire , Paris Cedex 06 75270 , France
| | - Marie-Isabelle Lannou
- Unité CNRS UMR 8638 , Université Paris Descartes, Faculté de Pharmacie , Sorbonne Paris Cité, 4 Avenue de l'Observatoire , Paris Cedex 06 75270 , France
| | - Geoffroy Sorin
- Unité CNRS UMR 8638 , Université Paris Descartes, Faculté de Pharmacie , Sorbonne Paris Cité, 4 Avenue de l'Observatoire , Paris Cedex 06 75270 , France
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9
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Salacz L, Girard N, Blond G, Suffert J. Synthesis of Polyheterocyclic Tropones by [2 + 2 + 2 + 1] Carbonylative Cycloaddition of Triynes. Org Lett 2018; 20:3915-3918. [DOI: 10.1021/acs.orglett.8b01496] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Laura Salacz
- Université de Strasbourg, CNRS, LIT UMR 7200, F-67000 Strasbourg, France
| | - Nicolas Girard
- Université de Strasbourg, CNRS, LIT UMR 7200, F-67000 Strasbourg, France
| | - Gaëlle Blond
- Université de Strasbourg, CNRS, LIT UMR 7200, F-67000 Strasbourg, France
| | - Jean Suffert
- Université de Strasbourg, CNRS, LIT UMR 7200, F-67000 Strasbourg, France
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10
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Vyas VK, Knighton RC, Bhanage BM, Wills M. Combining Electronic and Steric Effects To Generate Hindered Propargylic Alcohols in High Enantiomeric Excess. Org Lett 2018; 20:975-978. [DOI: 10.1021/acs.orglett.7b03884] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Vijyesh K. Vyas
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
- Institute of Chemical Technology, N. Parekh Marg, Matunga, Mumbai 400019, India
| | - Richard C. Knighton
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | | | - Martin Wills
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
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11
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Carbonylative cycloaddition for the synthesis of medium-sized carbo- and heterocycles. MONATSHEFTE FUR CHEMIE 2018. [DOI: 10.1007/s00706-017-2136-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Malik G, Swyka RA, Tiwari VK, Fei X, Applegate GA, Berkowitz DB. A thiocyanopalladation/carbocyclization transformation identified through enzymatic screening: stereocontrolled tandem C-SCN and C-C bond formation. Chem Sci 2017; 8:8050-8060. [PMID: 29568453 PMCID: PMC5855125 DOI: 10.1039/c7sc04083k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 09/29/2017] [Indexed: 12/31/2022] Open
Abstract
Herein we describe a formal thiocyanopalladation/carbocyclization transformation and its parametrization and optimization using a new elevated temperature plate-based version of our visual colorimetric enzymatic screening method for reaction discovery. The carbocyclization step leads to C-SCN bond formation in tandem with C-C bond construction and is highly stereoselective, showing nearly absolute 1,2-anti-stereoinduction (5 examples) for substrates bearing allylic substitution, and nearly absolute 1,3-syn-stereoinduction (16 examples) for substrates bearing propargylic substitution. Based upon these high levels of stereoinduction, the dependence of the 1,2-stereoinduction upon cyclization substrate geometry, and the generally high preference for the transoid vinyl thiocyanate alkene geometry, a mechanistic model is proposed, involving (i) Pd(ii)-enyne coordination, (ii) thiocyanopalladation, (iii) migratory insertion and (iv) β-elimination. Examples of transition metal-mediated C-SCN bond formation that proceed smoothly on unactivated substrates and allow for preservation of the SCN moiety are lacking. Yet, the thiocyanate functionality is of great value for biophysical chemistry (vibrational Stark effect) and medicinal chemistry (S,N-heterocycle construction). The title transformation accommodates C-, O-, N- and S-bridged substrates (6 examples), thereby providing the corresponding carbocyclic or heterocyclic scaffolds. The reaction is also shown to be compatible with a significant range of substituents, varying in steric and electronic demand, including a wide range of substituted aromatics, fused bicyclic and heterocyclic systems, and even biaryl systems. Combination of this new transformation with asymmetric allylation and Grubbs ring-closing metathesis provides for a streamlined enantio- and diastereoselective entry into the oxabicyclo[3.2.1]octyl core of the natural products massarilactone and annuionone A, as also evidenced by low temperature X-ray crystal structure determination. Utilizing this bicyclic scaffold, we demonstrate the versatility of the thiocyanate moiety for structural diversification post-cyclization. Thus, the bridging vinyl thiocyanate moiety is smoothly elaborated into a range of derivative functionalities utilizing transformations that cleave the S-CN bond, add the elements of RS-CN across a π-system and exploit the SCN moiety as a cycloaddition partner (7 diverse examples). Among the new functionalities thereby generated are thiotetrazole and sulfonyl tetrazole heterocycles that serve as carboxylate and phosphate surrogates, respectively, highlighting the potential of this approach for future applications in medicinal chemistry or chemical biology.
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Affiliation(s)
- G Malik
- Department of Chemistry , University of Nebraska , Lincoln , NE 68588 , USA .
| | - R A Swyka
- Department of Chemistry , University of Nebraska , Lincoln , NE 68588 , USA .
| | - V K Tiwari
- Department of Chemistry , University of Nebraska , Lincoln , NE 68588 , USA .
| | - X Fei
- Department of Chemistry , University of Nebraska , Lincoln , NE 68588 , USA .
| | - G A Applegate
- Department of Chemistry , University of Nebraska , Lincoln , NE 68588 , USA .
| | - D B Berkowitz
- Department of Chemistry , University of Nebraska , Lincoln , NE 68588 , USA .
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13
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Burke EG, Schomaker JM. Synthetic Applications of Flexible SNO-OCT Strained Alkynes and Their Use in Postpolymerization Modifications. J Org Chem 2017; 82:9038-9046. [PMID: 28795808 DOI: 10.1021/acs.joc.7b01506] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
SNO-OCTs are eight-membered heterocyclic alkynes that have fast rates of reactivity with 1,3-dipoles. In contrast to many other reported cycloalkynes, SNO-OCTs contain multiple sites for derivatization, display stability under a variety of common reaction conditions, and offer the opportunity for strain-induced ring-opening following the initial reaction of the alkyne moiety. In this paper, we describe how the unique features of SNO-OCTs can be employed to modify an oxime-bearing styrene copolymer and introduce an array of polar functionalities into the polymer. This can be achieved through both the addition of SNO-OCT to the polymer, as well as in the subsequent opening of the sulfamate ring once it has been installed in the polymer.
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Affiliation(s)
- Eileen G Burke
- Department of Chemistry, University of Wisconsin-Madison , 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Jennifer M Schomaker
- Department of Chemistry, University of Wisconsin-Madison , 1101 University Avenue, Madison, Wisconsin 53706, United States
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14
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Kondo M, Omori M, Hatanaka T, Funahashi Y, Nakamura S. Catalytic Enantioselective Reaction of Allenylnitriles with Imines Using Chiral Bis(imidazoline)s Palladium(II) Pincer Complexes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702429] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Masaru Kondo
- Department of Life Science and Applied Chemistry; Graduate School of Engineering; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
- Frontier Research Institute for Material Science; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Masashi Omori
- Department of Life Science and Applied Chemistry; Graduate School of Engineering; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Tsubasa Hatanaka
- Department of Chemistry; Graduate School of Science; Osaka University; 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Yasuhiro Funahashi
- Department of Chemistry; Graduate School of Science; Osaka University; 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Shuichi Nakamura
- Department of Life Science and Applied Chemistry; Graduate School of Engineering; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
- Frontier Research Institute for Material Science; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
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15
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Kondo M, Omori M, Hatanaka T, Funahashi Y, Nakamura S. Catalytic Enantioselective Reaction of Allenylnitriles with Imines Using Chiral Bis(imidazoline)s Palladium(II) Pincer Complexes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/anie.201702429] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Masaru Kondo
- Department of Life Science and Applied Chemistry; Graduate School of Engineering; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
- Frontier Research Institute for Material Science; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Masashi Omori
- Department of Life Science and Applied Chemistry; Graduate School of Engineering; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Tsubasa Hatanaka
- Department of Chemistry; Graduate School of Science; Osaka University; 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Yasuhiro Funahashi
- Department of Chemistry; Graduate School of Science; Osaka University; 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Shuichi Nakamura
- Department of Life Science and Applied Chemistry; Graduate School of Engineering; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
- Frontier Research Institute for Material Science; Nagoya Institute of Technology; Gokiso, Showa-ku Nagoya 466-8555 Japan
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16
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17
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Simeonov SP, Nunes JPM, Guerra K, Kurteva VB, Afonso CAM. Synthesis of Chiral Cyclopentenones. Chem Rev 2016; 116:5744-893. [DOI: 10.1021/cr500504w] [Citation(s) in RCA: 159] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Svilen P. Simeonov
- Institute
of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev str, bl.9, 1113 Sofia, Bulgaria
| | - João P. M. Nunes
- Department
of Chemistry, University College London, London WC1H 0AJ, United Kingdom
| | - Krassimira Guerra
- Research
Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Vanya B. Kurteva
- Institute
of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev str, bl.9, 1113 Sofia, Bulgaria
| | - Carlos A. M. Afonso
- Research
Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
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18
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Ruchti J, Carreira EM. Rh-Catalyzed Stereospecific Synthesis of Allenes from Propargylic Benzoates and Arylboronic Acids. Org Lett 2016; 18:2174-6. [PMID: 27088306 DOI: 10.1021/acs.orglett.6b00793] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An enantiospecific approach to the synthesis of optically active, trisubstituted allenes from chiral propargylic benzoates and arylboronic acids has been developed. The transformation is catalyzed by a Rh-(P,olefin) complex formed in situ from [{Rh(cod)Cl}2] and a readily available phosphoramidite ligand. The method furnishes an assortment of diverse allenes in high yields and excellent enantiospecificity under mild conditions.
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Affiliation(s)
- Jonathan Ruchti
- Laboratorium für Organische Chemie, ETH Zürich , HCI H335, Vladimir-Prelog-Weg 3, 8093 Zürich, Switzerland
| | - Erick M Carreira
- Laboratorium für Organische Chemie, ETH Zürich , HCI H335, Vladimir-Prelog-Weg 3, 8093 Zürich, Switzerland
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Tap A, Lecourt C, Dhambri S, Arnould M, Galvani G, Nguyen Van Buu O, Jouanneau M, Férézou JP, Ardisson J, Lannou MI, Sorin G. Alkoxyallene-ynes: Selective Preparation of Bicyclo[5.3.0] Ring Systems Including a δ-Alkoxy Cyclopentadienone. Chemistry 2016; 22:4938-44. [DOI: 10.1002/chem.201504753] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Indexed: 01/29/2023]
Affiliation(s)
- Aurélien Tap
- Faculté des Sciences Pharmaceutiques et Biologiques; Unité CNRS UMR 8638 COMÈTE; Paris Descartes University, Sorbonne Paris Cité; 4 avenue de l'observatoire 75270 Paris cedex 06 France
| | - Camille Lecourt
- Faculté des Sciences Pharmaceutiques et Biologiques; Unité CNRS UMR 8638 COMÈTE; Paris Descartes University, Sorbonne Paris Cité; 4 avenue de l'observatoire 75270 Paris cedex 06 France
| | - Sabrina Dhambri
- Faculté des Sciences Pharmaceutiques et Biologiques; Unité CNRS UMR 8638 COMÈTE; Paris Descartes University, Sorbonne Paris Cité; 4 avenue de l'observatoire 75270 Paris cedex 06 France
| | - Mathieu Arnould
- Faculté des Sciences Pharmaceutiques et Biologiques; Unité CNRS UMR 8638 COMÈTE; Paris Descartes University, Sorbonne Paris Cité; 4 avenue de l'observatoire 75270 Paris cedex 06 France
| | - Gilles Galvani
- Faculté des Sciences Pharmaceutiques et Biologiques; Unité CNRS UMR 8638 COMÈTE; Paris Descartes University, Sorbonne Paris Cité; 4 avenue de l'observatoire 75270 Paris cedex 06 France
| | - Olivier Nguyen Van Buu
- Faculté des Sciences Pharmaceutiques et Biologiques; Unité CNRS UMR 8638 COMÈTE; Paris Descartes University, Sorbonne Paris Cité; 4 avenue de l'observatoire 75270 Paris cedex 06 France
| | - Morgan Jouanneau
- Laboratoire de Chimie des Procédés et Substances Naturelles; ICMMO (CNRS UMR 8182); Université Paris-Sud, Bâtiment 410; 91405 Orsay Cedex France
| | - Jean-Pierre Férézou
- Laboratoire de Chimie des Procédés et Substances Naturelles; ICMMO (CNRS UMR 8182); Université Paris-Sud, Bâtiment 410; 91405 Orsay Cedex France
| | - Janick Ardisson
- Faculté des Sciences Pharmaceutiques et Biologiques; Unité CNRS UMR 8638 COMÈTE; Paris Descartes University, Sorbonne Paris Cité; 4 avenue de l'observatoire 75270 Paris cedex 06 France
| | - Marie-Isabelle Lannou
- Faculté des Sciences Pharmaceutiques et Biologiques; Unité CNRS UMR 8638 COMÈTE; Paris Descartes University, Sorbonne Paris Cité; 4 avenue de l'observatoire 75270 Paris cedex 06 France
| | - Geoffroy Sorin
- Faculté des Sciences Pharmaceutiques et Biologiques; Unité CNRS UMR 8638 COMÈTE; Paris Descartes University, Sorbonne Paris Cité; 4 avenue de l'observatoire 75270 Paris cedex 06 France
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Sabbasani VR, Lee H, Xia Y, Lee D. Complementary Iron(II)‐Catalyzed Oxidative Transformations of Allenes with Different Oxidants. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201510006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Venkata R. Sabbasani
- Department of Chemistry University of Illinois at Chicago 845 West Taylor Street Chicago IL 60607 USA
| | - Hyunjin Lee
- Department of Chemistry University of Illinois at Chicago 845 West Taylor Street Chicago IL 60607 USA
| | - Yuanzhi Xia
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou Zhejiang Province 325035 P.R. China
| | - Daesung Lee
- Department of Chemistry University of Illinois at Chicago 845 West Taylor Street Chicago IL 60607 USA
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Sabbasani VR, Lee H, Xia Y, Lee D. Complementary Iron(II)‐Catalyzed Oxidative Transformations of Allenes with Different Oxidants. Angew Chem Int Ed Engl 2015; 55:1151-5. [PMID: 26636261 DOI: 10.1002/anie.201510006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 11/10/2015] [Indexed: 12/16/2022]
Affiliation(s)
- Venkata R. Sabbasani
- Department of Chemistry University of Illinois at Chicago 845 West Taylor Street Chicago IL 60607 USA
| | - Hyunjin Lee
- Department of Chemistry University of Illinois at Chicago 845 West Taylor Street Chicago IL 60607 USA
| | - Yuanzhi Xia
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou Zhejiang Province 325035 P.R. China
| | - Daesung Lee
- Department of Chemistry University of Illinois at Chicago 845 West Taylor Street Chicago IL 60607 USA
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22
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Petrović M, Occhiato EG. Pentannulation of Heterocycles by Virtue of Precious Metal Catalysis. Chem Asian J 2015; 11:642-59. [DOI: 10.1002/asia.201501127] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Martina Petrović
- Department of Chemistry “U. Schiff”; University of Florence; Via della Lastruccia 13 I-50019 Sesto Fiorentino Italy
| | - Ernesto G. Occhiato
- Department of Chemistry “U. Schiff”; University of Florence; Via della Lastruccia 13 I-50019 Sesto Fiorentino Italy
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Yoshimatsu M, Tanaka M, Fujimura Y, Ito Y, Goto Y, Kobayashi Y, Wasada H, Hatae N, Tanabe G, Muraoka O. Synthesis of Azepines via a [6 + 1] Annulation of Ynenitriles with Reformatsky Reagents. J Org Chem 2015; 80:9480-94. [DOI: 10.1021/acs.joc.5b01397] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
| | | | | | | | | | | | | | - Noriyuki Hatae
- School of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido 061-0293, Japan
| | - Genzoh Tanabe
- Faculty of Pharmacy, Kinki University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan
| | - Osamu Muraoka
- Faculty of Pharmacy, Kinki University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan
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24
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Wells SM, Brummond KM. Conditions for a Rh(I)-catalyzed [2 + 2 + 1] cycloaddition reaction with methyl substituted allenes and alkynes. Tetrahedron Lett 2015; 56:3546-3549. [PMID: 26257443 DOI: 10.1016/j.tetlet.2015.01.075] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The direct installation of the C4 and C10 methyl groups present in the 6,12-guaianolide framework using a Rh(I)-catalyzed cyclocarbonylation reaction of methyl subsituted allenes and alkynes is described. High yields of bicyclo[5.3.0]decanes are afforded when low reaction concentrations involving syringe pump addition of the allene-yne to the catalyst are used.
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Affiliation(s)
- Sarah M Wells
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Kay M Brummond
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
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Hong X, Stevens MC, Liu P, Wender PA, Houk KN. Reactivity and chemoselectivity of allenes in Rh(I)-catalyzed intermolecular (5 + 2) cycloadditions with vinylcyclopropanes: allene-mediated rhodacycle formation can poison Rh(I)-catalyzed cycloadditions. J Am Chem Soc 2014; 136:17273-83. [PMID: 25379606 PMCID: PMC4277756 DOI: 10.1021/ja5098308] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Indexed: 11/30/2022]
Abstract
Allenes are important 2π building blocks in organic synthesis and engage as 2-carbon components in many metal-catalyzed reactions. Wender and co-workers discovered that methyl substituents on the terminal allene double bond counterintuitively change the reactivities of allenes in [Rh(CO)2Cl]2-catalyzed intermolecular (5 + 2) cycloadditions with vinylcyclopropanes (VCPs). More sterically encumbered allenes afford higher cycloadduct yields, and such effects are also observed in other Rh(I)-catalyzed intermolecular cycloadditions. Through density functional theory calculations (B3LYP and M06) and experiment, we explored this enigmatic reactivity and selectivity of allenes in [Rh(CO)2Cl]2-catalyzed intermolecular (5 + 2) cycloadditions with VCPs. The apparent low reactivity of terminally unsubstituted allenes is associated with a competing allene dimerization that irreversibly sequesters rhodium. With terminally substituted allenes, steric repulsion between the terminal substituents significantly increases the barrier of allene dimerization while the barrier of the (5 + 2) cycloaddition is not affected, and thus the cycloaddition prevails. Computation has also revealed the origin of chemoselectivity in (5 + 2) cycloadditions with allene-ynes. Although simple allene and acetylene have similar reaction barriers, intermolecular (5 + 2) cycloadditions of allene-ynes occur exclusively at the terminal allene double bond. The terminal double bond is more reactive due to the enhanced d-π* backdonation. At the same time, insertion of the internal double bond of an allene-yne has a higher barrier as it would break π conjugation. Substituted alkynes are more difficult to insert compared with acetylene, because of the steric repulsion from the additional substituents. This leads to the greater reactivity of the allene double bond relative to the alkynyl group in allene-ynes.
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Affiliation(s)
- Xin Hong
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Matthew C. Stevens
- Department
of Chemistry, Department of Chemical and Systems Biology, Stanford University, Stanford, California 94305, United States
| | - Peng Liu
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Paul A. Wender
- Department
of Chemistry, Department of Chemical and Systems Biology, Stanford University, Stanford, California 94305, United States
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, California 90095, United States
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Nella N, Parker E, Hitce J, Larini P, Jazzar R, Baudoin O. Efficient Pd-Catalyzed Allene Synthesis from Alkynes and Aryl Bromides through an Intramolecular Base-Assisted Deprotonation (iBAD) Mechanism. Chemistry 2014; 20:13272-8. [DOI: 10.1002/chem.201403213] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Indexed: 12/31/2022]
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Raji Reddy C, Kumaraswamy P, Singarapu KK. Sequential Allylic Substitution/Pauson–Khand Reaction: A Strategy to Bicyclic Fused Cyclopentenones from MBH-Acetates of Acetylenic Aldehydes. J Org Chem 2014; 79:7880-8. [PMID: 25105763 DOI: 10.1021/jo500962d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Chada Raji Reddy
- Division of Natural Products Chemistry, ‡Centre for NMR & Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, India
| | - Paridala Kumaraswamy
- Division of Natural Products Chemistry, ‡Centre for NMR & Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, India
| | - Kiran K. Singarapu
- Division of Natural Products Chemistry, ‡Centre for NMR & Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, India
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Zhou MB, Song RJ, Li JH. Hexafluoroantimonic Acid Catalysis: Formal [3+2+2] Cycloaddition of Aziridines with Two Alkynes. Angew Chem Int Ed Engl 2014; 53:4196-9. [DOI: 10.1002/anie.201310944] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 01/16/2014] [Indexed: 12/14/2022]
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Zhou MB, Song RJ, Li JH. Hexafluoroantimonic Acid Catalysis: Formal [3+2+2] Cycloaddition of Aziridines with Two Alkynes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201310944] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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31
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Neff RK, Frantz DE. Recent Advances in the Catalytic Syntheses of Allenes: A Critical Assessment. ACS Catal 2014. [DOI: 10.1021/cs401007m] [Citation(s) in RCA: 214] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Robynne K. Neff
- Department
of Chemistry, The University of Texas at San Antonio, One UTSA
Circle, San Antonio, Texas 78249, United States
| | - Doug E. Frantz
- Department
of Chemistry, The University of Texas at San Antonio, One UTSA
Circle, San Antonio, Texas 78249, United States
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Cañeque T, Truscott FM, Rodriguez R, Maestri G, Malacria M. Electrophilic activation of allenenes and allenynes: analogies and differences between Brønsted and Lewis acid activation. Chem Soc Rev 2014; 43:2916-26. [DOI: 10.1039/c4cs00023d] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
This review focuses on electrophilic activation of allenes by an acid. Key mechanistic features are presented together with recent synthetic applications.
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Affiliation(s)
- T. Cañeque
- Institut de Chimie des Substances Naturelles
- ICNS-CNRS UPR2301
- Gif/Yvette Cedex 91198, France
| | - F. M. Truscott
- Institut de Chimie des Substances Naturelles
- ICNS-CNRS UPR2301
- Gif/Yvette Cedex 91198, France
| | - R. Rodriguez
- Institut de Chimie des Substances Naturelles
- ICNS-CNRS UPR2301
- Gif/Yvette Cedex 91198, France
| | - G. Maestri
- Institut de Chimie des Substances Naturelles
- ICNS-CNRS UPR2301
- Gif/Yvette Cedex 91198, France
- Dipartimento di Chimica
- Università degli Studi di Parma
| | - M. Malacria
- Institut de Chimie des Substances Naturelles
- ICNS-CNRS UPR2301
- Gif/Yvette Cedex 91198, France
- Institut Parisienne de Chimie Moleculaire
- UPMC Université Paris 06
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Dabrowski JA, Haeffner F, Hoveyda AH. Combining NHC-Cu and Brønsted Base Catalysis: Enantioselective Allylic Substitution/Conjugate Additions with Alkynylaluminum Reagents and Stereospecific Isomerization of the Products to Trisubstituted Allenes. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303501] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Dabrowski JA, Haeffner F, Hoveyda AH. Combining NHC-Cu and Brønsted base catalysis: enantioselective allylic substitution/conjugate additions with alkynylaluminum reagents and stereospecific isomerization of the products to trisubstituted allenes. Angew Chem Int Ed Engl 2013; 52:7694-9. [PMID: 23864395 DOI: 10.1002/anie.201303501] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Indexed: 12/17/2022]
Abstract
All-catalytic route to trisubstituted allenes: The first examples of catalytic enantioselective allylic substitution reactions that involve alkyne-based nucleophiles and lead to products having tertiary stereogenic centers are followed by an exceptionally stereospecific amine-catalyzed isomerization to trisubstituted allenes (see picture; NHC = N-heterocyclic carbene).
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Affiliation(s)
- Jennifer A Dabrowski
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467, USA
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Wender PA. Toward the Ideal Synthesis and Transformative Therapies: The Roles of Step Economy and Function Oriented Synthesis. Tetrahedron 2013; 69:7529-7550. [PMID: 23956471 PMCID: PMC3743450 DOI: 10.1016/j.tet.2013.06.004] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Paul A Wender
- Department of Chemistry, Department of Chemical and Systems Biology, Stanford University, Stanford CA 94305-5080 USA
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Campolo D, Gastaldi S, Roussel C, Bertrand MP, Nechab M. Axial-to-central chirality transfer in cyclization processes. Chem Soc Rev 2013; 42:8434-66. [DOI: 10.1039/c3cs60182j] [Citation(s) in RCA: 110] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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