1
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Zeng Q, Nirwan Y, Benet-Buchholz J, Kleij AW. An Expedient Radical Approach for the Decarboxylative Synthesis of Stereodefined All-Carbon Tetrasubstituted Olefins. Angew Chem Int Ed Engl 2024; 63:e202403651. [PMID: 38619179 DOI: 10.1002/anie.202403651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 04/12/2024] [Accepted: 04/15/2024] [Indexed: 04/16/2024]
Abstract
We report a user-friendly approach for the decarboxylative formation of stereodefined and complex tri- and tetra-substituted olefins from vinyl cyclic carbonates and amines as radical precursors. The protocol relies on easy photo-initiated α-amino-radical formation followed by addition onto the double bond of the substrate resulting in a sequence involving carbonate ring-opening, double bond relay, CO2 extrusion and finally O-protonation. The developed protocol is efficient for both mismatched and matched polarity substrate combinations, and the scope of elaborate stereodefined olefins that can be forged including drug-functionalized derivatives is wide, diverse and further extendable to other types of heterocyclic and radical precursors. Mechanistic control reactions show that the decarboxylation step is a key driving force towards product formation, with the initial radical addition under steric control.
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Affiliation(s)
- Qian Zeng
- Institute of Chemical Research of Catalonia (ICIQ-Cerca), the Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona
- Departament de Química Física i Inorgànica/Universitat Rovira i Virgili, Marcel⋅lí Domingo s/n, 43007, Tarragona, Spain
| | - Yamini Nirwan
- Institute of Chemical Research of Catalonia (ICIQ-Cerca), the Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona
| | - Jordi Benet-Buchholz
- Institute of Chemical Research of Catalonia (ICIQ-Cerca), the Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona
| | - Arjan W Kleij
- Institute of Chemical Research of Catalonia (ICIQ-Cerca), the Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona
- Catalan Institute of Research and Advanced Studies (ICREA), Pg. Lluís, Companys 23, 08010, Barcelona, Spain
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2
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Luan R, Lin P, Li K, Du Y, Su W. Remote-carbonyl-directed sequential Heck/isomerization/C(sp 2)-H arylation of alkenes for modular synthesis of stereodefined tetrasubstituted olefins. Nat Commun 2024; 15:1723. [PMID: 38409273 PMCID: PMC10897343 DOI: 10.1038/s41467-024-46051-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 02/08/2024] [Indexed: 02/28/2024] Open
Abstract
Modular and regio-/stereoselective syntheses of all-carbon tetrasubstituted olefins from simple alkene materials remain a challenging project. Here, we demonstrate that a remote-carbonyl-directed palladium-catalyzed Heck/isomerization/C(sp2)-H arylation sequence enables unactivated 1,1-disubstituted alkenes to undergo stereoselective terminal diarylation with aryl iodides, thus offering a concise approach to construct stereodefined tetrasubstituted olefins in generally good yields under mild conditions; diverse carbonyl groups are allowed to act as directing groups, and various aryl groups can be introduced at the desired position simply by changing aryl iodides. The stereocontrol of the protocol stems from the compatibility between the E/Z isomerization and the alkenyl C(sp2)-H arylation, where the vicinal group-directed C(sp2)-H arylation of the Z-type intermediate product thermodynamically drives the reversible E to Z isomerization. Besides, the carbonyl group not only promotes the Pd-catalyzed sequential transformations of unactivated alkenes by weak coordination, but also avoids byproducts caused by other possible β-H elimination.
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Affiliation(s)
- Runze Luan
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, PR China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, PR China
- University of Chinese Academy of Sciences, Beijing, PR China
| | - Ping Lin
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, PR China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, PR China
| | - Kun Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, PR China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, PR China
- College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, PR China
| | - Yu Du
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, PR China.
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, PR China.
- University of Chinese Academy of Sciences, Beijing, PR China.
- College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, PR China.
| | - Weiping Su
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, PR China.
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, PR China.
- University of Chinese Academy of Sciences, Beijing, PR China.
- College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, PR China.
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3
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Williams CG, Nistanaki SK, Wells CW, Nelson HM. α-Vinylation of Ester Equivalents via Main Group Catalysis for the Construction of Quaternary Centers. Org Lett 2023; 25:3591-3595. [PMID: 37192420 DOI: 10.1021/acs.orglett.3c00535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
A methodology for the construction of sterically congested quaternary centers via the trapping of vinyl carbocations with silyl ketene acetals is disclosed. This main group-catalyzed α-vinylation reaction is advantageous as methods to access these congested motifs are limited. Moreover, β,γ-unsaturated carbonyl moieties and tetrasubstituted alkenes are present in various bioactive natural products and pharmaceuticals, and this catalytic platform offers a means of accessing them using simple and inexpensive materials.
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Affiliation(s)
- Chloe G Williams
- Department of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Sepand K Nistanaki
- Department of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Conner W Wells
- Department of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Hosea M Nelson
- Department of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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4
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Ruan LX, Sun B, Liu JM, Shi SL. Dynamic kinetic asymmetric arylation and alkenylation of ketones. Science 2023; 379:662-670. [PMID: 36795811 DOI: 10.1126/science.ade0760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Despite the importance of enantioenriched alcohols in medicinal chemistry, total synthesis, and materials science, the efficient and selective construction of enantioenriched tertiary alcohols bearing two contiguous stereocenters has remained a substantial challenge. We report a platform for their preparation through the enantioconvergent, nickel-catalyzed addition of organoboronates to racemic, nonactivated ketones. We prepared several important classes of α,β-chiral tertiary alcohols in a single step with high levels of diastereo- and enantioselectivity through a dynamic kinetic asymmetric addition of aryl and alkenyl nucleophiles. We applied this protocol to modify several profen drugs and to rapidly synthesize biologically relevant molecules. We expect this nickel-catalyzed, base-free ketone racemization process to be a widely applicable strategy for the development of dynamic kinetic processes.
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Affiliation(s)
- Lin-Xin Ruan
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Bo Sun
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Jia-Ming Liu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Shi-Liang Shi
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
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5
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Nistanaki SK, Williams CG, Wigman B, Wong JJ, Haas BC, Popov S, Werth J, Sigman MS, Houk KN, Nelson HM. Catalytic asymmetric C-H insertion reactions of vinyl carbocations. Science 2022; 378:1085-1091. [PMID: 36480623 PMCID: PMC9993429 DOI: 10.1126/science.ade5320] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
From the preparation of pharmaceuticals to enzymatic construction of natural products, carbocations are central to molecular synthesis. Although these reactive intermediates are engaged in stereoselective processes in nature, exerting enantiocontrol over carbocations with synthetic catalysts remains challenging. Many resonance-stabilized tricoordinated carbocations, such as iminium and oxocarbenium ions, have been applied in catalytic enantioselective reactions. However, their dicoordinated counterparts (aryl and vinyl carbocations) have not, despite their emerging utility in chemical synthesis. We report the discovery of a highly enantioselective vinyl carbocation carbon-hydrogen (C-H) insertion reaction enabled by imidodiphosphorimidate organocatalysts. Active site confinement featured in this catalyst class not only enables effective enantiocontrol but also expands the scope of vinyl cation C-H insertion chemistry, which broadens the utility of this transition metal-free C(sp3)-H functionalization platform.
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Affiliation(s)
- Sepand K Nistanaki
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Chloe G Williams
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Benjamin Wigman
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Jonathan J Wong
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Brittany C Haas
- Department of Chemistry, University of Utah, Salt Lake City, UT 84112, USA
| | - Stasik Popov
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Jacob Werth
- Department of Chemistry, University of Utah, Salt Lake City, UT 84112, USA
| | - Matthew S Sigman
- Department of Chemistry, University of Utah, Salt Lake City, UT 84112, USA
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Hosea M Nelson
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA
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6
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Boyarskaya DV, Ongaro A, Piemontesi C, Wang Q, Zhu J. Synthesis of 3-Acyloxyindolenines by TiCl 3-Mediated Reductive Cyclization of 2-( ortho-Nitroaryl)-Substituted Enol Esters. Org Lett 2022; 24:7004-7008. [PMID: 36121329 DOI: 10.1021/acs.orglett.2c02860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In the presence of TiCl3, the reductive cyclization of tetrasubstituted enol esters bearing a 2-(ortho-nitroaryl) substituent affords 3-acyloxy-2,3-disubstituted indolenines in good yields. A domino process involving the partial reduction of nitro to a nitroso group followed by 5-center-6π-electrocyclization, 1,2-acyloxy migration, and the further reduction of the resulting nitrone intermediate accounts for the reaction outcome. The so-obtained indolenines are converted smoothly to 2,2-disubstituted oxindoles via a sequence of saponification and semipinacol rearrangement.
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Affiliation(s)
- Dina V Boyarskaya
- Laboratory of Synthesis and Natural Products (LSPN), Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, Lausanne 1015, Switzerland
| | - Alberto Ongaro
- Laboratory of Synthesis and Natural Products (LSPN), Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, Lausanne 1015, Switzerland
| | - Cyril Piemontesi
- Laboratory of Synthesis and Natural Products (LSPN), Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, Lausanne 1015, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products (LSPN), Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, Lausanne 1015, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products (LSPN), Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, Lausanne 1015, Switzerland
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7
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Templ J, Schnürch M. Selective α-Methylation of Aryl Ketones Using Quaternary Ammonium Salts as Solid Methylating Agents. J Org Chem 2022; 87:4305-4315. [PMID: 35253422 PMCID: PMC8938946 DOI: 10.1021/acs.joc.1c03158] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
We describe the use
of phenyl trimethylammonium iodide (PhMe3NI) as an alternative
methylating agent for introducing a
CH3 group in α-position to a carbonyl group. Compared
to conventional methylating agents, quaternary ammonium salts have
the advantages of being nonvolatile, noncancerogenic, and easy-to-handle
solids. This regioselective method is characterized by ease of operational
setup, use of anisole as green solvent, and yields up to 85%.
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Affiliation(s)
- Johanna Templ
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060 Wien, Austria
| | - Michael Schnürch
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060 Wien, Austria
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8
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Li Y, Shao Q, He H, Zhu C, Xue XS, Xie J. Highly selective synthesis of all-carbon tetrasubstituted alkenes by deoxygenative alkenylation of carboxylic acids. Nat Commun 2022; 13:10. [PMID: 35121730 PMCID: PMC8816943 DOI: 10.1038/s41467-021-27507-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 11/14/2021] [Indexed: 01/07/2023] Open
Abstract
The synthesis of all-carbon tetrasubstituted olefins under mild reaction conditions is challenging because of the inevitable issues including significant steric hindrance and the uncontrolled Z/E stereoselectivity. In this paper, we report the synthesis of all-carbon tetrasubstituted alkenes from readily available carboxylic acids and alkenyl triflates with the synergistic catalysis of cyclo-octa-1,5-diene(tetramethyl-1,4-benzoquinone)nickel and visible light under an air atmosphere, thus avoiding the need for a glovebox or a Schlenk line. A wide range of aromatic carboxylic acids and cyclic and acyclic alkenyl triflates undergo the C-C coupling process smoothly, forming structurally diverse alkenes stereospecifically in moderate to good yields. The practicality of the method is further illustrated by the late-stage modification of complex molecules, the one pot synthesis and gram-scale applications. This is an important step towards the valuable utilization of carboxylic acids, and it also simplifies the experimental operation of metallophotoredox catalysis with moisture sensitive nickel(0) catalysis. Tetrasubstituted olefins have been explored as chemical synthons and can sometime have useful photophysical properties, but are sometimes difficult to synthesize with high selectivity in mild conditions. Here the authors present a method to make tetrasubstituted olefins via dual photo- and nickel catalysis, without the need for an inert atmosphere.
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9
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Alatat K, Abbasi Kejani A, Nikbakht A, Bijanzadeh HR, Balalaie S. A metal-free tandem dehydrogenative α-arylation reaction of propargylic alcohols with 2-alkynylbenzaldoximes toward the synthesis of α-(4-bromo-isoquinolin-1-yl)-propenone skeletons. Org Biomol Chem 2022; 20:579-583. [PMID: 34985097 DOI: 10.1039/d1ob02114a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A tandem reaction of 2-alkynylbenzaldoximes with propargylic alcohols has been developed for the synthesis of α-(4-bromo-isoquinolin-1-yl)-propenones. Employing 2-alkynylbenzaldoximes as a precursor in the presence of Br2 generates 4-bromo-isoquinoline-N-oxides. Subsequently, dehydroxylation of propargylic alcohols gives carbocation intermediates, which are trapped using the N-oxides, affording aryl-substituted α-enones.
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Affiliation(s)
- Khalil Alatat
- Peptide Chemistry Research Institute, K. N. Toosi University of Technology, P. O. Box 15875-4416, Tehran, Iran.
| | - Alireza Abbasi Kejani
- Peptide Chemistry Research Institute, K. N. Toosi University of Technology, P. O. Box 15875-4416, Tehran, Iran.
| | - Ali Nikbakht
- Peptide Chemistry Research Institute, K. N. Toosi University of Technology, P. O. Box 15875-4416, Tehran, Iran.
| | - Hamid Reza Bijanzadeh
- Department of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Tehran, Iran
| | - Saeed Balalaie
- Peptide Chemistry Research Institute, K. N. Toosi University of Technology, P. O. Box 15875-4416, Tehran, Iran. .,Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
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10
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Sirindil F, Pertschi R, Naulin E, Hatey D, Weibel JM, Pale P, Blanc A. trans-Dichlorobis(XPhos)palladium(II) Precatalyst for Suzuki-Miyaura Cross-Coupling Reactions of Aryl/Vinyl Sulfonates/Halides: Scope, Mechanistic Study, and Synthetic Applications. ACS OMEGA 2022; 7:1186-1196. [PMID: 35036781 PMCID: PMC8756804 DOI: 10.1021/acsomega.1c05770] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 11/25/2021] [Indexed: 06/14/2023]
Abstract
Suzuki-Miyaura cross-coupling reactions of aryl/vinyl sulfonates/halides with various boron species were performed using an easily available trans-dichlorobis(XPhos)palladium(II) precatalyst. Under microwave assistance, more than 30 coupling products were obtained with yields ranging from 23 to 99%, including the synthesis of two bioactive compounds, dubamine and tamoxifen. A mechanistic investigation of the Suzuki-Miyaura reaction was conducted notably by nuclear magnetic resonance (NMR) and high-resolution mass spectroscopy, revealing the nature of the active Pd0 species and of the reducing entity.
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11
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Arora R, Rodríguez JF, Whyte A, Lautens M. Accessing Unsymmetrically Linked Heterocycles through Stereoselective Palladium‐Catalyzed Domino Cyclization. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202112288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ramon Arora
- Davenport Research Laboratories Department of Chemistry University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - José F. Rodríguez
- Davenport Research Laboratories Department of Chemistry University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Andrew Whyte
- Davenport Research Laboratories Department of Chemistry University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Mark Lautens
- Davenport Research Laboratories Department of Chemistry University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
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12
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Arora R, Rodríguez JF, Whyte A, Lautens M. Accessing Unsymmetrically Linked Heterocycles through Stereoselective Palladium-Catalyzed Domino Cyclization. Angew Chem Int Ed Engl 2022; 61:e202112288. [PMID: 34739741 DOI: 10.1002/anie.202112288] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Indexed: 12/23/2022]
Abstract
A palladium-catalyzed strategy is presented to synthesize unsymmetrically linked heterocycles within stereoselective tetrasubstituted olefins. This reaction is proposed to occur via a vinyl-PdII intermediate capable of initiating the cyclization of various alkyne-tethered nucleophiles. Products are formed in up to 96 % yield and excellent stereoselectivities are obtained using low catalyst loadings. This transformation was scalable up to 1 mmol and mechanistic studies suggest a syn-carbopalladation of the carbamoyl chloride followed by PdII -catalyzed cyclization of alkyne-tethered nucleophiles.
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Affiliation(s)
- Ramon Arora
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
| | - José F Rodríguez
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
| | - Andrew Whyte
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
| | - Mark Lautens
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
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13
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Wang CS, Tan PSL, Ding W, Ito S, Yoshikai N. Regio- and Stereoselective Synthesis of Enol Carboxylate, Phosphate, and Sulfonate Esters via Iodo(III)functionalization of Alkynes. Org Lett 2021; 24:430-434. [PMID: 34962817 DOI: 10.1021/acs.orglett.1c04123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
β-Iodo(III)enol carboxylates, phosphates, and tosylates can be efficiently synthesized through regio- and stereoselective iodo(III)functionalization of alkynes. The combination of chlorobenziodoxole and silver salt has proven to generate a versatile cationic iodine(III) electrophile to activate alkynes and engage various carboxylic acids, triethyl phosphate, and p-toluenesulfonic acid as nucleophiles. The β-iodo(III)enol esters serve as starting materials for the synthesis of multisubstituted alkenes through sequential cross-coupling of the C-I(III) and C-O bonds.
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Affiliation(s)
- Chang-Sheng Wang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Ploypailin Siew Ling Tan
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Wei Ding
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Shingo Ito
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Naohiko Yoshikai
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore.,Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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14
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Zhao Y, Li L, Xu G, Xuan J. All‐Carbon Tetrasubstituted Olefins Synthesis from Diazo Compounds and Iodonium Ylides under Blue LED Irradiation. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101144] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yan‐Rui Zhao
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials and Key Laboratory of Functional Inorganic Materials of Anhui Province, College of Chemistry & Chemical Engineering Anhui University Hefei Anhui 230601 People's Republic of China
| | - Lei Li
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials and Key Laboratory of Functional Inorganic Materials of Anhui Province, College of Chemistry & Chemical Engineering Anhui University Hefei Anhui 230601 People's Republic of China
| | - Guo‐Yong Xu
- Institute of Physical Science and Information Technology Anhui University Hefei Anhui 230601 People's Republic of China
| | - Jun Xuan
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials and Key Laboratory of Functional Inorganic Materials of Anhui Province, College of Chemistry & Chemical Engineering Anhui University Hefei Anhui 230601 People's Republic of China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education Hefei 230601 People's Republic of China
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15
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Chvojka T, Markos A, Voltrová S, Pohl R, Beier P. Ligand-dependent stereoselective Suzuki-Miyaura cross-coupling reactions of β-enamido triflates. Beilstein J Org Chem 2021; 17:2657-2662. [PMID: 34795803 PMCID: PMC8561141 DOI: 10.3762/bjoc.17.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 10/22/2021] [Indexed: 11/23/2022] Open
Abstract
The stereoselective Suzuki–Miyaura cross-coupling of (Z)-β-enamido triflates is demonstrated. Depending on the nature of the ligand in the palladium catalyst, either retention or inversion of the configuration during the synthesis of β,β-diaryl-substituted enamides is observed. Thus, the method provides synthetic access to both isomers of the target enamides from (Z)-β-enamido triflates.
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Affiliation(s)
- Tomáš Chvojka
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 166 10 Prague, Czech Republic
| | - Athanasios Markos
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 166 10 Prague, Czech Republic.,Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, CZ-128 43 Prague 2, Czech Republic
| | - Svatava Voltrová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 166 10 Prague, Czech Republic
| | - Radek Pohl
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 166 10 Prague, Czech Republic
| | - Petr Beier
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 166 10 Prague, Czech Republic
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16
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Zell D, Kingston C, Jermaks J, Smith SR, Seeger N, Wassmer J, Sirois LE, Han C, Zhang H, Sigman MS, Gosselin F. Stereoconvergent and -divergent Synthesis of Tetrasubstituted Alkenes by Nickel-Catalyzed Cross-Couplings. J Am Chem Soc 2021; 143:19078-19090. [PMID: 34735129 DOI: 10.1021/jacs.1c08399] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We report the development of a method to diastereoselectively access tetrasubstituted alkenes via nickel-catalyzed Suzuki-Miyaura cross-couplings of enol tosylates and boronic acid esters. Either diastereomeric product was selectively accessed from a mixture of enol tosylate starting material diastereomers in a convergent reaction by judicious choice of the ligand and reaction conditions. A similar protocol also enabled a divergent synthesis of each product isomer from diastereomerically pure enol tosylates. Notably, high-throughput optimization of the monophosphine ligands was guided by chemical space analysis of the kraken library to ensure a diverse selection of ligands was examined. Stereoelectronic analysis of the results provided insight into the requirements for reactive and selective ligands in this transformation. The synthetic utility of the optimized catalytic system was then probed in the stereoselective synthesis of various tetrasubstituted alkenes, with yields up to 94% and diastereomeric ratios up to 99:1 Z/E and 93:7 E/Z observed. Moreover, a detailed computational analysis and experimental mechanistic studies provided key insights into the nature of the underlying isomerization process impacting selectivity in the cross-coupling.
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Affiliation(s)
- Daniel Zell
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Cian Kingston
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Janis Jermaks
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Sleight R Smith
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Natalie Seeger
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Jana Wassmer
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Lauren E Sirois
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Chong Han
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Haiming Zhang
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Matthew S Sigman
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Francis Gosselin
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
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17
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Price S, Bender SG, Yahn R, Till NA, Varady S, LaLonde RL. Searching for an ideal SERM: Mining tamoxifen structure-activity relationships. Bioorg Med Chem Lett 2021; 52:128383. [PMID: 34592434 DOI: 10.1016/j.bmcl.2021.128383] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 09/08/2021] [Accepted: 09/21/2021] [Indexed: 11/15/2022]
Abstract
The repurposing of old drugs for new treatments has recently garnered increased attention in the face of new diseases and declining productivity of the pharmaceutial industry. This report draws attention to potential opportunities hiding in plain sight within the SAR of off-patent drugs. Herein we explore the untapped potential of Selective Estrogen Receptor Modulators (SERMs). SERMs are a class of molecules that have been highly influential in the treatment of estrogen receptor-positive breast cancers. However, the most commonly prescribed SERM, tamoxifen, has been found to increase the risk of endometrial cancer. Another SERM, raloxifene, does not increase incidence of endometrial cancer, but has been abandoned as a breast cancer treatment. We report the design, synthesis, and evaluation of an unexplored tamoxifen substitution pattern which mimics the geometry of raloxifene to confer its favorable pharmacodynamics. This substitution pattern was found to maintain excellent binding affinity to estrogen receptor-α.
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Affiliation(s)
- Sky Price
- Chemistry Department, Reed College, 3203 SE Woodstock Blvd, Portland, OR, USA; Department of Chemistry, University of Texas at Austin, 2506 Speedway, Austin, TX USA
| | - Sophie G Bender
- Chemistry Department, Reed College, 3203 SE Woodstock Blvd, Portland, OR, USA; Department of Chemistry and Chemical Biology, Cornell University, 122 Baker Laboratory, Ithaca, NY, USA
| | - Rachel Yahn
- Chemistry Department, Reed College, 3203 SE Woodstock Blvd, Portland, OR, USA
| | - Nicholas A Till
- Chemistry Department, Reed College, 3203 SE Woodstock Blvd, Portland, OR, USA
| | - Sophia Varady
- Chemistry Department, Reed College, 3203 SE Woodstock Blvd, Portland, OR, USA
| | - Rebecca Lyn LaLonde
- Chemistry Department, Reed College, 3203 SE Woodstock Blvd, Portland, OR, USA.
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18
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Abstract
The asymmetric alkylation of enolates is a particularly versatile method for the construction of α-stereogenic carbonyl motifs, which are ubiquitous in synthetic chemistry. Over the past several decades, the focus has shifted to the development of new catalytic methods that depart from classical stoichiometric stereoinduction strategies (e.g., chiral auxiliaries, chiral alkali metal amide bases, chiral electrophiles, etc.). In this way, the enantioselective alkylation of prochiral enolates greatly improves the step- and redox-economy of this process, in addition to enhancing the scope and selectivity of these reactions. In this review, we summarize the origin and advancement of catalytic enantioselective enolate alkylation methods, with a directed emphasis on the union of prochiral nucleophiles with carbon-centered electrophiles for the construction of α-stereogenic carbonyl derivatives. Hence, the transformative developments for each distinct class of nucleophile (e.g., ketone enolates, ester enolates, amide enolates, etc.) are presented in a modular format to highlight the state-of-the-art methods and current limitations in each area.
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Affiliation(s)
- Timothy B Wright
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario K7L 3N6, Canada
| | - P Andrew Evans
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario K7L 3N6, Canada.,Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, Hunan, P. R. of China
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19
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Christensen M, Yunker LPE, Adedeji F, Häse F, Roch LM, Gensch T, dos Passos Gomes G, Zepel T, Sigman MS, Aspuru-Guzik A, Hein JE. Data-science driven autonomous process optimization. Commun Chem 2021; 4:112. [PMID: 36697524 PMCID: PMC9814253 DOI: 10.1038/s42004-021-00550-x] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 07/14/2021] [Indexed: 01/28/2023] Open
Abstract
Autonomous process optimization involves the human intervention-free exploration of a range process parameters to improve responses such as product yield and selectivity. Utilizing off-the-shelf components, we develop a closed-loop system for carrying out parallel autonomous process optimization experiments in batch. Upon implementation of our system in the optimization of a stereoselective Suzuki-Miyaura coupling, we find that the definition of a set of meaningful, broad, and unbiased process parameters is the most critical aspect of successful optimization. Importantly, we discern that phosphine ligand, a categorical parameter, is vital to determination of the reaction outcome. To date, categorical parameter selection has relied on chemical intuition, potentially introducing bias into the experimental design. In seeking a systematic method for selecting a diverse set of phosphine ligands, we develop a strategy that leverages computed molecular feature clustering. The resulting optimization uncovers conditions to selectively access the desired product isomer in high yield.
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Affiliation(s)
- Melodie Christensen
- grid.17091.3e0000 0001 2288 9830Department of Chemistry, University of British Columbia, Vancouver, BC Canada ,grid.417993.10000 0001 2260 0793Department of Process Research and Development, Merck & Co., Inc., Rahway, NJ USA
| | - Lars P. E. Yunker
- grid.17091.3e0000 0001 2288 9830Department of Chemistry, University of British Columbia, Vancouver, BC Canada
| | - Folarin Adedeji
- grid.417993.10000 0001 2260 0793Department of Process Research and Development, Merck & Co., Inc., Rahway, NJ USA
| | - Florian Häse
- grid.38142.3c000000041936754XDepartment of Chemistry and Chemical Biology, Harvard University, Cambridge, MA USA ,grid.17063.330000 0001 2157 2938Department of Chemistry, University of Toronto, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Computer Science, University of Toronto, Toronto, ON Canada ,grid.494618.6Vector Institute for Artificial Intelligence, Toronto, ON Canada ,ChemOS Sàrl, Lausanne, Vaud Switzerland
| | - Loïc M. Roch
- grid.38142.3c000000041936754XDepartment of Chemistry and Chemical Biology, Harvard University, Cambridge, MA USA ,grid.17063.330000 0001 2157 2938Department of Chemistry, University of Toronto, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Computer Science, University of Toronto, Toronto, ON Canada ,ChemOS Sàrl, Lausanne, Vaud Switzerland
| | - Tobias Gensch
- grid.223827.e0000 0001 2193 0096Department of Chemistry, University of Utah, Salt Lake City, UT USA
| | - Gabriel dos Passos Gomes
- grid.17063.330000 0001 2157 2938Department of Chemistry, University of Toronto, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Computer Science, University of Toronto, Toronto, ON Canada ,grid.494618.6Vector Institute for Artificial Intelligence, Toronto, ON Canada
| | - Tara Zepel
- grid.17091.3e0000 0001 2288 9830Department of Chemistry, University of British Columbia, Vancouver, BC Canada
| | - Matthew S. Sigman
- grid.223827.e0000 0001 2193 0096Department of Chemistry, University of Utah, Salt Lake City, UT USA
| | - Alán Aspuru-Guzik
- grid.38142.3c000000041936754XDepartment of Chemistry and Chemical Biology, Harvard University, Cambridge, MA USA ,grid.17063.330000 0001 2157 2938Department of Chemistry, University of Toronto, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Computer Science, University of Toronto, Toronto, ON Canada ,grid.494618.6Vector Institute for Artificial Intelligence, Toronto, ON Canada ,grid.440050.50000 0004 0408 2525Canadian Institute for Advanced Research, Toronto, ON Canada
| | - Jason E. Hein
- grid.17091.3e0000 0001 2288 9830Department of Chemistry, University of British Columbia, Vancouver, BC Canada
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20
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21
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Buttard F, Sharma J, Champagne PA. Recent advances in the stereoselective synthesis of acyclic all-carbon tetrasubstituted alkenes. Chem Commun (Camb) 2021; 57:4071-4088. [PMID: 33908457 DOI: 10.1039/d1cc00596k] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Alkenes bearing four carbon-based groups are ubiquitous motifs in chemical sciences due to their various applications from medicinal to materials chemistry, and as chemical platforms for the synthesis of complex, chiral molecules. As such, tremendous research efforts are currently ongoing in order to develop general procedures for the challenging stereoselective synthesis of all-carbon tetrasubstituted alkenes, especially for acyclic structures. Since classical approaches to carbon-carbon double bonds are not suitable for the high steric demand around tetrasubstituted alkenes, a variety of unique approaches to access these privileged functional groups have been developed in recent years. This review article highlights the most significant developments in the field from 2007 to 2020, with an emphasis on the mechanisms and remaining limitations of these contemporary methods. Specifically, recent advances in internal alkyne carbofunctionalizations, in multicomponent couplings or other cross-couplings from nucleophilic or electrophilic alkenyl partners, and in the development of miscellaneous methods, are discussed.
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Affiliation(s)
- Floris Buttard
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark (NJ), USA.
| | - Jyoti Sharma
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark (NJ), USA.
| | - Pier Alexandre Champagne
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark (NJ), USA.
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22
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Chen Z, So CM. Palladium‐Phenylpyrazolylphosphine‐Catalyzed Cross‐Coupling of Alkenyl Pivalates. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zicong Chen
- State Key Laboratory of Chemical Biology and Drug Discovery and Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University Hung Hom, Kowloon Hong Kong
| | - Chau Ming So
- State Key Laboratory of Chemical Biology and Drug Discovery and Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University Hung Hom, Kowloon Hong Kong
- The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen P. R. China
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23
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Carsch KM, Ho W, Lui KH, Valtierra G, Dogutan DK, Nocera DG, Zheng SL. Crystal structure of the RuPhos ligand. ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS 2021; 77:171-174. [PMID: 33614148 PMCID: PMC7869533 DOI: 10.1107/s2056989021000542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 01/14/2021] [Indexed: 08/23/2023]
Abstract
Palladium 2-di-cyclo-hexyl-phosphanyl-2',6'-diisopropoxybiphenyl (Pd-RuPhos) catalysts demonstrate high catalytic activity for Negishi cross-couplings of sterically hindered aryl halides, for Suzuki-Miyaura cross-couplings of tosyl-ated olefins, and for Buchwald-Hartwig amination of sterically hindered amines. The solid-state structure of the free RuPhos ligand, C30H43O2P, is reported herein for the first time. RuPhos crystallizes in a triclinic cell containing two independent mol-ecules of the phosphine without any lattice solvent. Pertinent bond metrics and comparisons to other phosphine ligands are presented. The structure of RuPhos will be of assistance in the use of this ligand in the design of cross-coupling catalysts.
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Affiliation(s)
- Kurtis M Carsch
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA
| | - William Ho
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA
| | - Kai Hin Lui
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA
| | - Gregory Valtierra
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA
| | - Dilek K Dogutan
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA
| | - Daniel G Nocera
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA
| | - Shao-Liang Zheng
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA
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24
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Fulton TJ, Cusumano AQ, Alexy EJ, Du YE, Zhang H, Houk KN, Stoltz BM. Global Diastereoconvergence in the Ireland-Claisen Rearrangement of Isomeric Enolates: Synthesis of Tetrasubstituted α-Amino Acids. J Am Chem Soc 2020; 142:21938-21947. [PMID: 33320668 DOI: 10.1021/jacs.0c11480] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A dual experimental/theoretical investigation of the Ireland-Claisen rearrangement of tetrasubstituted α-phthalimido ester enolates to afford α-tetrasubstituted, β-trisubstituted α-amino acids (generally >20:1 dr) is described. For trans allylic olefins, the Z- and E-enol ethers proceed through chair and boat transition states, respectively. For cis allylic olefins, the trend is reversed. As a result, the diastereochemical outcome of the reaction is preserved regardless of the geometry of the enolate or the accompanying allylic olefin. We term this unique convergence of all possible olefin isomers global diastereoconvergence. This reaction manifold circumvents limitations in present-day technologies for the stereoselective enolization of α,α-disubstituted allyl esters. Density functional theory paired with state-of-the-art local coupled-cluster theory (DLPNO-CCSD(T)) was employed for the accurate determination of quantum mechanical energies.
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Affiliation(s)
- Tyler J Fulton
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Alexander Q Cusumano
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Eric J Alexy
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Yun E Du
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Haiming Zhang
- Small Molecule Process Chemistry, Genentech, Inc., South San Francisco, California 94080, United States
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Brian M Stoltz
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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25
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Junk L, Kazmaier U. The Allylic Alkylation of Ketone Enolates. ChemistryOpen 2020; 9:929-952. [PMID: 32953384 PMCID: PMC7482671 DOI: 10.1002/open.202000175] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/03/2020] [Indexed: 01/14/2023] Open
Abstract
The palladium-catalyzed allylic alkylation of non-stabilized ketone enolates was thought for a long time to be not as efficient as the analogous reactions of stabilized enolates, e. g. of malonates and β-ketoesters. The field has experienced a rapid development during the last two decades, with a range of new, highly efficient protocols evolved. In this review, the early developments as well as current methods and applications of palladium-catalyzed ketone enolate allylations will be discussed.
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Affiliation(s)
- Lukas Junk
- Organic Chemistry ISaarland UniversityCampus C4.266123SaarbrückenGermany
| | - Uli Kazmaier
- Organic Chemistry ISaarland UniversityCampus C4.266123SaarbrückenGermany
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26
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Lavernhe R, Alexy EJ, Zhang H, Stoltz BM. Palladium-Catalyzed Enantioselective Decarboxylative Allylic Alkylation of Acyclic α- N-Pyrrolyl/Indolyl Ketones. Org Lett 2020; 22:4272-4275. [PMID: 32422045 PMCID: PMC7608871 DOI: 10.1021/acs.orglett.0c01303] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The synthesis of fully substituted α-N-pyrrolyl and indolyl ketones via enantioselective palladium-catalyzed allylic alkylation is described. The acyclic ketones are alkylated in high yields with high enantioselectivities through the use of an electron-deficient phosphinooxazoline ligand, furnishing a highly congested and synthetically challenging stereocenter. The obtained alkylation products contain multiple reactive sites poised for additional functionalizations and diversification.
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Affiliation(s)
- Remi Lavernhe
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Eric J. Alexy
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Haiming Zhang
- Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Brian M. Stoltz
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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27
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Chen Z, So CM. Pd-Catalyzed Cross-Coupling of Highly Sterically Congested Enol Carbamates with Grignard Reagents via C-O Bond Activation. Org Lett 2020; 22:3879-3883. [PMID: 32352793 DOI: 10.1021/acs.orglett.0c01127] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The palladium-catalyzed cross-coupling reaction of enol carbamates to construct highly sterically congested alkenyl compounds is presented for the first time. This protocol demonstrates the potential of using thermally stable and highly atom-economic enol electrophiles as building blocks in bulky alkene synthesis. This reaction accommodates a broad substrate scope with excellent Z/E isomer ratios, which also provides a new synthetic pathway for accessing Tamoxifen.
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Affiliation(s)
- Zicong Chen
- State Key Laboratory of Chemical Biology and Drug Discovery and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Chau Ming So
- State Key Laboratory of Chemical Biology and Drug Discovery and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.,The Hong Kong Polytechnic University, Shenzhen Research Institute, Shenzhen, People's Republic of China
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28
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Li MY, Han P, Hu TJ, Wei D, Zhang G, Qin A, Feng CG, Tang BZ, Lin GQ. Suzuki-Miyaura Coupling Enabled by Aryl to Vinyl 1,4-Palladium Migration. iScience 2020; 23:100966. [PMID: 32199292 PMCID: PMC7082552 DOI: 10.1016/j.isci.2020.100966] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/20/2020] [Accepted: 03/03/2020] [Indexed: 12/29/2022] Open
Abstract
The Suzuki-Miyaura coupling is a fundamentally important transformation in modern organic synthesis. The development of new reaction modes for new chemical accessibility and higher synthetic efficiency is still the consistent pursuance in this field. An efficient Suzuki-Miyaura coupling enabled by a controllable 1,4-palladium migration was realized to afford stereodefined multisubstituted olefins and 1,3-dienes. The reaction exhibits remarkable broad substrate scope, excellent functional-group tolerance, versatile conversion with obtained products, and easy scalability. The practicality of this method is highlighted by the aggregation-induced emission feature of the produced olefins and 1,3-dienes, as well as the capability of affording geometric isomer pairs with a marked difference on photoluminescent quantum yield values.
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Affiliation(s)
- Meng-Yao Li
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Pengbo Han
- State Key Laboratory of Luminescent Materials and Devices, Key Laboratory of Luminescence from Molecular Aggregates of Guangdong Province, Center for Aggregation-Induced Emission, South China University of Technology, Guangzhou 510640, China
| | - Tian-Jiao Hu
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Dong Wei
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Ge Zhang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Anjun Qin
- State Key Laboratory of Luminescent Materials and Devices, Key Laboratory of Luminescence from Molecular Aggregates of Guangdong Province, Center for Aggregation-Induced Emission, South China University of Technology, Guangzhou 510640, China
| | - Chen-Guo Feng
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China; The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Ben Zhong Tang
- State Key Laboratory of Luminescent Materials and Devices, Key Laboratory of Luminescence from Molecular Aggregates of Guangdong Province, Center for Aggregation-Induced Emission, South China University of Technology, Guangzhou 510640, China
| | - Guo-Qiang Lin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China; The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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29
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Bigler R, Mack KA, Shen J, Tosatti P, Han C, Bachmann S, Zhang H, Scalone M, Pfaltz A, Denmark SE, Hildbrand S, Gosselin F. Asymmetric Hydrogenation of Unfunctionalized Tetrasubstituted Acyclic Olefins. Angew Chem Int Ed Engl 2020; 59:2844-2849. [PMID: 31794118 DOI: 10.1002/anie.201912640] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Indexed: 12/31/2022]
Abstract
Asymmetric hydrogenation has evolved as one of the most powerful tools to construct stereocenters. However, the asymmetric hydrogenation of unfunctionalized tetrasubstituted acyclic olefins remains the pinnacle of asymmetric synthesis and an unsolved challenge. We report herein the discovery of an iridium catalyst for the first, generally applicable, highly enantio- and diastereoselective hydrogenation of such olefins and the mechanistic insights of the reaction. The power of this chemistry is demonstrated by the successful hydrogenation of a wide variety of electronically and sterically diverse olefins in excellent yield and high enantio- and diastereoselectivity.
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Affiliation(s)
- Raphael Bigler
- Pharmaceutical Division, Small Molecules Technical Development, Department of Process Chemistry and Catalysis, F. Hoffmann-La Roche Ltd, 4070, Basel, Switzerland
| | - Kyle A Mack
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, CA, 94080, USA
| | - Jeff Shen
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, CA, 94080, USA
| | - Paolo Tosatti
- Pharmaceutical Division, Small Molecules Technical Development, Department of Process Chemistry and Catalysis, F. Hoffmann-La Roche Ltd, 4070, Basel, Switzerland
| | - Chong Han
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, CA, 94080, USA
| | - Stephan Bachmann
- Pharmaceutical Division, Small Molecules Technical Development, Department of Process Chemistry and Catalysis, F. Hoffmann-La Roche Ltd, 4070, Basel, Switzerland
| | - Haiming Zhang
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, CA, 94080, USA
| | - Michelangelo Scalone
- Pharmaceutical Division, Small Molecules Technical Development, Department of Process Chemistry and Catalysis, F. Hoffmann-La Roche Ltd, 4070, Basel, Switzerland
| | - Andreas Pfaltz
- Department of Chemistry, University of Basel, 4056, Basel, Switzerland
| | - Scott E Denmark
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, IL, 61801, USA
| | - Stefan Hildbrand
- Pharmaceutical Division, Small Molecules Technical Development, Department of Process Chemistry and Catalysis, F. Hoffmann-La Roche Ltd, 4070, Basel, Switzerland
| | - Francis Gosselin
- Department of Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, CA, 94080, USA
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30
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Bigler R, Mack KA, Shen J, Tosatti P, Han C, Bachmann S, Zhang H, Scalone M, Pfaltz A, Denmark SE, Hildbrand S, Gosselin F. Asymmetric Hydrogenation of Unfunctionalized Tetrasubstituted Acyclic Olefins. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201912640] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Raphael Bigler
- Pharmaceutical DivisionSmall Molecules Technical DevelopmentDepartment of Process Chemistry and CatalysisF. Hoffmann-La Roche Ltd 4070 Basel Switzerland
| | - Kyle A. Mack
- Department of Small Molecule Process ChemistryGenentech, Inc. 1 DNA Way South San Francisco CA 94080 USA
| | - Jeff Shen
- Department of Small Molecule Process ChemistryGenentech, Inc. 1 DNA Way South San Francisco CA 94080 USA
| | - Paolo Tosatti
- Pharmaceutical DivisionSmall Molecules Technical DevelopmentDepartment of Process Chemistry and CatalysisF. Hoffmann-La Roche Ltd 4070 Basel Switzerland
| | - Chong Han
- Department of Small Molecule Process ChemistryGenentech, Inc. 1 DNA Way South San Francisco CA 94080 USA
| | - Stephan Bachmann
- Pharmaceutical DivisionSmall Molecules Technical DevelopmentDepartment of Process Chemistry and CatalysisF. Hoffmann-La Roche Ltd 4070 Basel Switzerland
| | - Haiming Zhang
- Department of Small Molecule Process ChemistryGenentech, Inc. 1 DNA Way South San Francisco CA 94080 USA
| | - Michelangelo Scalone
- Pharmaceutical DivisionSmall Molecules Technical DevelopmentDepartment of Process Chemistry and CatalysisF. Hoffmann-La Roche Ltd 4070 Basel Switzerland
| | - Andreas Pfaltz
- Department of ChemistryUniversity of Basel 4056 Basel Switzerland
| | - Scott E. Denmark
- Roger Adams LaboratoryDepartment of ChemistryUniversity of Illinois Urbana IL 61801 USA
| | - Stefan Hildbrand
- Pharmaceutical DivisionSmall Molecules Technical DevelopmentDepartment of Process Chemistry and CatalysisF. Hoffmann-La Roche Ltd 4070 Basel Switzerland
| | - Francis Gosselin
- Department of Small Molecule Process ChemistryGenentech, Inc. 1 DNA Way South San Francisco CA 94080 USA
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31
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Wei YM, Ma XD, Wang L, Duan XF. Iron-catalyzed stereospecific arylation of enol tosylates using Grignard reagents. Chem Commun (Camb) 2020; 56:1101-1104. [DOI: 10.1039/c9cc09522e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Iron-catalyzed stereospecific arylation of enol tosylates with Grignard reagents.
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Affiliation(s)
- Yi-Ming Wei
- College of Chemistry
- Beijing Normal University
- China
| | - Xiao-Di Ma
- College of Chemistry
- Beijing Normal University
- China
| | - Lei Wang
- College of Chemistry
- Beijing Normal University
- China
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32
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Duan XF. Iron catalyzed stereoselective alkene synthesis: a sustainable pathway. Chem Commun (Camb) 2020; 56:14937-14961. [DOI: 10.1039/d0cc04882h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Replacing expensive or toxic transition metals with iron has become an important trend. This article summarises the recent progresses of a wide range of Fe-catalyzed reactions for accessing various stereodefined alkenes.
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33
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Lavernhe R, Alexy EJ, Zhang H, Stoltz BM. Palladium-Catalyzed Enantioselective Decarboxylative Allylic Alkylation of Protected Benzoin-Derived Enol Carbonates. Adv Synth Catal 2019; 362:344-347. [PMID: 33692657 DOI: 10.1002/adsc.201901281] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The enantioselective palladium-catalyzed decarboxylative allylic alkylation of fully substituted α-hydroxy acyclic enol carbonates providing tetrasubstituted benzoin derivatives is reported. Investigation into the transformation revealed that preparation of the starting material as a single enolate isomer is crucial for optimal enantioselectivity. The obtained alkylation products contain multiple reactive sites that can be utilized toward the synthesis of stereochemically rich derivatives. COMMUNICATION.
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Affiliation(s)
- Rémi Lavernhe
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Eric J Alexy
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Haiming Zhang
- Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Brian M Stoltz
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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34
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Meng F, Zhang H, Li J, Chun J, Shi Y, He H, Chen B, Gao Z, Zhu Y. Highly Selective and Switchable Access to Tetrasubstituted Alkenyl Sulfones and Naphthyl Sulfones: 1,4-Aryl Migration versus Cyclization. Org Lett 2019; 21:8537-8542. [DOI: 10.1021/acs.orglett.9b03003] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Fei Meng
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Honglin Zhang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Jie Li
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Jianlin Chun
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yun Shi
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Han He
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Bin Chen
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhenbo Gao
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yingguang Zhu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
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35
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Lee W, Shin C, Park SE, Joo JM. Regio- and Stereoselective Synthesis of Thiazole-Containing Triarylethylenes by Hydroarylation of Alkynes. J Org Chem 2019; 84:12913-12924. [DOI: 10.1021/acs.joc.9b01619] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Woohyeong Lee
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Changhoon Shin
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Soo Eun Park
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Jung Min Joo
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Republic of Korea
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36
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Fulton TJ, Wu B, Alexy EJ, Zhang H, Stoltz BM. Palladium-catalyzed α,β-dehydrogenation of acyclic ester equivalents promoted by a novel electron deficient phosphinooxazoline ligand. Tetrahedron 2019; 75:4104-4109. [PMID: 32255844 DOI: 10.1016/j.tet.2019.05.065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A unique example of Pd-catalyzed decarboxylative dehydrogenation of fully substituted N-acyl allyl enol carbonates is enabled by a new electron deficient phosphinooxazoline (PHOX) ligand. The reaction proceeds from the Z-enol carbonate to provide dehydrogenation products exclusively in high E/Z selectivity, while the E-enol carbonate provides the α-allylation product with only minor dehydrogenation. The reaction proceeds with a broad scope of (Z)-enol carbonates derived from N-acyl indoles to furnish acyclic formal α,β-unsaturated ester equivalents.
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Affiliation(s)
- Tyler J Fulton
- Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd, Pasadena, California 91125, United States of America
| | - Brenda Wu
- Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd, Pasadena, California 91125, United States of America
| | - Eric J Alexy
- Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd, Pasadena, California 91125, United States of America
| | - Haiming Zhang
- Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States of America
| | - Brian M Stoltz
- Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd, Pasadena, California 91125, United States of America
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37
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Lou J, He Y, Li Y, Yu Z. Transition‐Metal‐Promoted Direct C−H Cyanoalkylation and Cyanoalkoxylation of Internal Alkenes
via
Radical C−C Bond Cleavage of Cycloketone Oxime Esters. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900402] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Jiang Lou
- Dalian Institute of Chemical PhysicsChinese Academy of Sciences 457 Zhongshan Road, Dalian Liaoning 116023 People's Republic of China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Yuan He
- Dalian Institute of Chemical PhysicsChinese Academy of Sciences 457 Zhongshan Road, Dalian Liaoning 116023 People's Republic of China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Yunlong Li
- Dalian Institute of Chemical PhysicsChinese Academy of Sciences 457 Zhongshan Road, Dalian Liaoning 116023 People's Republic of China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Zhengkun Yu
- Dalian Institute of Chemical PhysicsChinese Academy of Sciences 457 Zhongshan Road, Dalian Liaoning 116023 People's Republic of China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic ChemistryChinese Academy of Sciences 354 Fenglin Road Shanghai 200032 People's Republic of China
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38
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Cao Z, Xu P, Luo Q, Li X, Yu D, Fang H, Shi Z. Conversion of Carbonyl Compounds to Olefins
via
Enolate Intermediate. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201800554] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhi‐Chao Cao
- Department of ChemistryFudan University Shanghai 200433 China
- College of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Pei‐Lin Xu
- College of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Qin‐Yu Luo
- College of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Xiao‐Lei Li
- College of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Da‐Gang Yu
- College of ChemistrySichuan University Chengdu Sichuan 610064 China
| | - Huayi Fang
- Department of ChemistryFudan University Shanghai 200433 China
| | - Zhang‐Jie Shi
- Department of ChemistryFudan University Shanghai 200433 China
- College of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
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39
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Majhi J, Turnbull BWH, Ryu H, Park J, Baik MH, Evans PA. Dynamic Kinetic Resolution of Alkenyl Cyanohydrins Derived from α,β-Unsaturated Aldehydes: Stereoselective Synthesis of E-Tetrasubstituted Olefins. J Am Chem Soc 2019; 141:11770-11774. [DOI: 10.1021/jacs.9b04384] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jadab Majhi
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario K7L 3N6, Canada
| | - Ben W. H. Turnbull
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario K7L 3N6, Canada
| | - Ho Ryu
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
- Center for
Catalytic
Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Jiyong Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
- Center for
Catalytic
Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Mu-Hyun Baik
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
- Center for
Catalytic
Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - P. Andrew Evans
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario K7L 3N6, Canada
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40
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Affiliation(s)
- Fangling Lu
- National Research Center for Carbohydrate Synthesis, Jiangxi Province's Key Laboratory of Chemical Biology, Jiangxi Normal University Nanchang Jiangxi 330022 China
- College of Chemistry and Chemical Engineering, Jiangxi Normal University Nanchang Jiangxi 330022 China
| | - Yong Yuan
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University Wuhan Hubei 430072 China
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41
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Alexy EJ, Fulton TJ, Zhang H, Stoltz BM. Palladium-catalyzed enantioselective decarboxylative allylic alkylation of fully substituted N-acyl indole-derived enol carbonates. Chem Sci 2019; 10:5996-6000. [PMID: 31360407 PMCID: PMC6566452 DOI: 10.1039/c9sc01726g] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 04/26/2019] [Indexed: 01/06/2023] Open
Abstract
The first enantioselective Pd-catalyzed decarboxylative allylic alkylation of fully substituted N-acyl indole-derived enol carbonates generates acyclic all-carbon quaternary stereocenters in excellent yields (up to 99%) and enantioselectivities (up to 98% ee) using a new electron-deficient phosphinoxazoline (PHOX) ligand.
The first enantioselective palladium-catalyzed decarboxylative allylic alkylation of fully substituted N-acyl indole-derived enol carbonates forming acyclic all-carbon quaternary stereocenters is reported. Excellent yields up to 99% and enantioselectivities up to 98% ee are obtained through the use of a new electron-deficient phosphinoxazoline (PHOX) ligand. Control of substrate enolate geometry is crucial for high selectivity. The obtained α-quaternary N-acyl indoles are formal ester equivalents, and represent a useful handle for further synthetic transformations.
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Affiliation(s)
- Eric J Alexy
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering , Division of Chemistry and Chemical Engineering , California Institute of Technology , Pasadena , CA 91125 , USA .
| | - Tyler J Fulton
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering , Division of Chemistry and Chemical Engineering , California Institute of Technology , Pasadena , CA 91125 , USA .
| | - Haiming Zhang
- Small Molecule Process Chemistry, Genentech, Inc. , 1 DNA Way , South San Francisco , CA 94080 , USA .
| | - Brian M Stoltz
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering , Division of Chemistry and Chemical Engineering , California Institute of Technology , Pasadena , CA 91125 , USA .
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42
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Rao KS, St-Jean F, Kumar A. Quantitation of a Ketone Enolization and a Vinyl Sulfonate Stereoisomer Formation Using Inline IR Spectroscopy and Modeling. Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.9b00042] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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43
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Electrochemical Oxidative Csp
3
—H/S—H Cross‐Coupling with Hydrogen Evolution for Synthesis of Tetrasubstituted Olefins. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900113] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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44
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Lin EE, Wu JQ, Schäfers F, Su XX, Wang KF, Li JL, Chen Y, Zhao X, Ti H, Li Q, Ou TM, Glorius F, Wang H. Regio- and stereoselective synthesis of tetra- and triarylethenes by N-methylimidodiacetyl boron-directed palladium-catalysed three-component coupling. Commun Chem 2019. [DOI: 10.1038/s42004-019-0137-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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45
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Fujii Y, Tamura Y, Hashimoto N, Endo N, Iwasawa T. Stereo‐Defined Synthetic Route to (
E
)‐ and (
Z
)‐Tamoxifen Derived from(
E
)‐1‐Bromo‐2‐iodoalkenes. ChemistrySelect 2019. [DOI: 10.1002/slct.201900324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yoshino Fujii
- Department of Materials ChemistryRyukoku University Seta, Otsu Shiga 520-2194 Japan
| | - Yuka Tamura
- Department of Materials ChemistryRyukoku University Seta, Otsu Shiga 520-2194 Japan
| | - Nako Hashimoto
- Department of Materials ChemistryRyukoku University Seta, Otsu Shiga 520-2194 Japan
| | - Naoki Endo
- Department of Materials ChemistryRyukoku University Seta, Otsu Shiga 520-2194 Japan
| | - Tetsuo Iwasawa
- Department of Materials ChemistryRyukoku University Seta, Otsu Shiga 520-2194 Japan
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46
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Campeau LC, Fogg DE. The Roles of Organometallic Chemistry in Pharmaceutical Research and Development. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00918] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Louis-Charles Campeau
- Department of Process Research and Development, Merck Research Laboratories, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Deryn E. Fogg
- Centre for Catalysis Research & Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, K1N 6N5 Ontario, Canada
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47
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Trost BM, Tracy JS. Vanadium-Catalyzed Synthesis of Geometrically Defined Acyclic Tri- and Tetrasubstituted Olefins from Propargyl Alcohols. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04567] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Barry M. Trost
- Department of Chemistry, Stanford University, 333 Campus Drive, Stanford, California 94305, United States
| | - Jacob S. Tracy
- Department of Chemistry, Stanford University, 333 Campus Drive, Stanford, California 94305, United States
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48
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Savage S, McClory A, Zhang H, Cravillion T, Lim NK, Masui C, Robinson SJ, Han C, Ochs C, Rege PD, Gosselin F. Synthesis of Selective Estrogen Receptor Degrader GDC-0810 via Stereocontrolled Assembly of a Tetrasubstituted All-Carbon Olefin. J Org Chem 2018; 83:11571-11576. [DOI: 10.1021/acs.joc.8b01551] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | - Christoph Ochs
- Department of Process Chemistry and Catalysis, F. Hoffmann-La Roche AG, Grenzacherstrasse 124, CH-4070 Basel, Switzerland
| | - Pankaj D. Rege
- Department of Process Chemistry and Catalysis, F. Hoffmann-La Roche AG, Grenzacherstrasse 124, CH-4070 Basel, Switzerland
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49
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Alexy EJ, Zhang H, Stoltz BM. Catalytic Enantioselective Synthesis of Acyclic Quaternary Centers: Palladium-Catalyzed Decarboxylative Allylic Alkylation of Fully Substituted Acyclic Enol Carbonates. J Am Chem Soc 2018; 140:10109-10112. [PMID: 30049213 PMCID: PMC6103296 DOI: 10.1021/jacs.8b05560] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The first enantioselective palladium-catalyzed decarboxylative allylic alkylation of fully substituted acyclic enol carbonates providing linear α-quaternary ketones is reported. Investigation into the reaction revealed that the use of an electron-deficient phosphinooxazoline ligand renders the enolate geometry of the starting material inconsequential, with the same enantiomer of product obtained in the same level of selectivity regardless of the starting ratio of enolates. As a result, a general method toward acyclic all-carbon quaternary stereocenters has been developed.
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Affiliation(s)
- Eric J. Alexy
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Haiming Zhang
- Small Molecule Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Brian M. Stoltz
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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50
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Villuendas P, Ruiz S, Vidossich P, Lledós A, Urriolabeitia EP. Selective Synthesis of Tetrasubstituted Olefins by Copper-Mediated Acetoxythiolation of Internal Alkynes: Scope and Mechanistic Studies. Chemistry 2018; 24:13124-13135. [DOI: 10.1002/chem.201802546] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 06/18/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Pedro Villuendas
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH); CSIC-Universidad de Zaragoza, Facultad de Ciencias; Edificio D Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Sara Ruiz
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH); CSIC-Universidad de Zaragoza, Facultad de Ciencias; Edificio D Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Pietro Vidossich
- Departament de Química, Edifici Cn; Universitat Autònoma de Barcelona; 08193 Cerdanyola del Vallés Barcelona Spain
- COBO, Computational Bio-organic Chemistry Bogotá, Department of Chemistry; Universidad de los Andes; Carrera 1 No. 18A 10 10 111711 Bogotá Colombia
| | - Agustí Lledós
- Departament de Química, Edifici Cn; Universitat Autònoma de Barcelona; 08193 Cerdanyola del Vallés Barcelona Spain
| | - Esteban P. Urriolabeitia
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH); CSIC-Universidad de Zaragoza, Facultad de Ciencias; Edificio D Pedro Cerbuna 12 50009 Zaragoza Spain
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