1
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Ogo S, Yatabe T, Miyazawa K, Hashimoto Y, Takahashi C, Nakai H, Shiota Y. Cyclopropanation Using Electrons Derived from Hydrogen: Reaction of Alkenes and Hydrogen without Hydrogenation. JACS AU 2024; 4:1615-1622. [PMID: 38665645 PMCID: PMC11040560 DOI: 10.1021/jacsau.4c00098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/05/2024] [Accepted: 03/11/2024] [Indexed: 04/28/2024]
Abstract
Have you ever imagined reactions of alkenes with hydrogen that result in anything other than hydrogenation or hydrogenative C-C coupling? We have long sought to develop not only hydrogenation catalysts that activate H2 as hydride ions but also electron transfer catalysts that activate H2 as a direct electron donor. Here, we report the reductive cyclopropanation of alkenes using an iridium electron storage catalyst with H2 as the electron source without releasing metal waste from the reductant. We discuss the catalytic mechanism with selectivity to give the trans-isomer. These findings are based on the isolation of three complexes and density functional theory calculations.
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Affiliation(s)
- Seiji Ogo
- Department
of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- International
Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Center
for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takeshi Yatabe
- Department
of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- International
Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Center
for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Keishi Miyazawa
- Department
of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- International
Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yunosuke Hashimoto
- Department
of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- International
Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Chiaki Takahashi
- Department
of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- International
Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Hidetaka Nakai
- Department
of Energy and Materials, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Osaka 577-8502, Japan
| | - Yoshihito Shiota
- Institute
for Materials Chemistry and Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
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2
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Tsuda M, Morita T, Morita Y, Takaya J, Nakamura H. Methylene Insertion into Nitrogen-Heteroatom Single Bonds of 1,2-Azoles via a Zinc Carbenoid: An Alternative Tool for Skeletal Editing. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307563. [PMID: 38148471 PMCID: PMC10933618 DOI: 10.1002/advs.202307563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/10/2023] [Indexed: 12/28/2023]
Abstract
The nitrogen-heteroatom single bonds of 1,2-azoles and isoxazolines underwent methylene insertion in the presence of CH2 I2 (6 equiv.) and diethylzinc (3 equiv.) to produce a wide variety of the ring-expanded six-membered heterocycles. Density functional theory calculations suggest that the methylene insertion proceeds via cleavage of nitrogen-heteroatom single bonds followed by ring closure.
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Affiliation(s)
- Masato Tsuda
- School of Life Science and TechnologyTokyo Institute of Technology4259 Nagatsuta‐cho Midori‐kuYokohama226–8501Japan
| | - Taiki Morita
- School of Life Science and TechnologyTokyo Institute of Technology4259 Nagatsuta‐cho Midori‐kuYokohama226–8501Japan
- Laboratory for Chemistry and Life ScienceInstitute of Innovative ResearchTokyo Institute of Technology4259 Nagatsuta‐cho Midori‐kuYokohama226–8501Japan
| | - Yuto Morita
- Department of ChemistrySchool of ScienceTokyo Institute of TechnologyO‐okayamaMeguro‐kuTokyo152–8551Japan
| | - Jun Takaya
- Department of ChemistrySchool of ScienceTokyo Institute of TechnologyO‐okayamaMeguro‐kuTokyo152–8551Japan
| | - Hiroyuki Nakamura
- School of Life Science and TechnologyTokyo Institute of Technology4259 Nagatsuta‐cho Midori‐kuYokohama226–8501Japan
- Laboratory for Chemistry and Life ScienceInstitute of Innovative ResearchTokyo Institute of Technology4259 Nagatsuta‐cho Midori‐kuYokohama226–8501Japan
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3
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He Z, Wang Z, Gao Z, Qian H, Ding W, Jin H, Liu Y, Zhou B. Aryl boronic acid-controlled divergent ring-contraction and ring-opening/isomerization reaction of tert-cyclobutanols enabled by nickel catalysis. Org Biomol Chem 2023; 21:6493-6497. [PMID: 37529886 DOI: 10.1039/d3ob00894k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
In this work, we wish to present a nickel-catalyzed divergent ring-contraction and ring-opening/isomerization reaction of tert-cyclobutanols. The key to control these two different reaction pathways is to choose appropriate boronic acid, where the use of phenylboronic acid and pyrimidin-5-ylboronic acid enables a ring-contraction and ring-opening reaction/isomerization, respectively. Both cyclopropyl aryl methanones and 1-aryl butan-1-ones could be selectively obtained.
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Affiliation(s)
- Zhichang He
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Zhengwen Wang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Zhao Gao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Hongwei Qian
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Wangqiannan Ding
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Hongwei Jin
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Yunkui Liu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Bingwei Zhou
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.
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4
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Chung J, Capani JS, Göhl M, Roosen PC, Vanderwal CD. Enantioselective Syntheses of Wickerols A and B. J Am Chem Soc 2023; 145:6486-6497. [PMID: 36883956 PMCID: PMC10037325 DOI: 10.1021/jacs.3c00448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
The evolution of a successful strategy for the synthesis of the strained, cage-like antiviral diterpenoids wickerols A and B is described. Initial attempts to access the carbocyclic core were surprisingly challenging and in retrospect, presaged the many detours needed to ultimately arrive at the fully adorned wickerol architecture. In most cases, conditions to trigger desired outcomes with respect to both reactivity and stereochemistry were hard-won. The successful synthesis ultimately leveraged alkenes in virtually all productive bond-forming events. A series of conjugate addition reactions generated the fused tricyclic core, a Claisen rearrangement was used to install an otherwise unmanageable methyl-bearing stereogenic center, and a Prins cyclization closed the strained bridging ring. This final reaction proved enormously interesting because the strain of the ring system permitted diversion of the presumed initial Prins product into several different scaffolds.
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Affiliation(s)
- Jonathan Chung
- Department of Chemistry, University of California, Irvine, 1102 Natural Sciences II, Irvine, California 92697-2025, United States
| | - Joseph S Capani
- Department of Chemistry, University of California, Irvine, 1102 Natural Sciences II, Irvine, California 92697-2025, United States
| | - Matthias Göhl
- Department of Chemistry, University of California, Irvine, 1102 Natural Sciences II, Irvine, California 92697-2025, United States
| | - Philipp C Roosen
- Department of Chemistry, University of California, Irvine, 1102 Natural Sciences II, Irvine, California 92697-2025, United States
| | - Christopher D Vanderwal
- Department of Chemistry, University of California, Irvine, 1102 Natural Sciences II, Irvine, California 92697-2025, United States
- Department of Pharmaceutical Sciences, University of California, Irvine, 101 Theory #100, Irvine, California 92617, United States
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5
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Fischer D, Lindner H, Amberg WM, Carreira EM. Intermolecular Organophotocatalytic Cyclopropanation of Unactivated Olefins. J Am Chem Soc 2023; 145:774-780. [PMID: 36607827 PMCID: PMC9853868 DOI: 10.1021/jacs.2c11680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Intermolecular cyclopropanation of mono-, di-, and trisubstituted olefins with α-bromo-β-ketoesters and α-bromomalonates under organophotocatalysis is reported. The reaction displays broad functional group tolerance, including substrates bearing acids, alcohols, halides, ethers, ketones, nitriles, esters, amides, carbamates, silanes, stannanes, boronic esters, as well as arenes, and furnishes highly substituted cyclopropanes. The transformation may be performed in the presence of air and moisture with 0.5 mol % of a benzothiazinoquinoxaline as organophotocatalyst. Mechanistic investigations, involving Stern-Volmer quenching, quantum yield determination, and deuteration experiments, are carried out, and a catalytic cycle for the transformation is discussed.
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6
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Zha Q, Wu Y. Enantioselective Total Synthesis of 10-Desoxy Analogue of a Previously Reported Natural Peroxyguaidiol. J Org Chem 2022; 87:10114-10137. [PMID: 35796860 DOI: 10.1021/acs.joc.2c01082] [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
Described herein is an enantioselective synthesis of an analogue of a previously reported guaiane endoperoxide isolated from aerial parts of Croton arboreous. The polycyclic framework of the target structure was constructed with the C-7 stereogenic center derived from L-(-)-carvone and other stereogenic centers installed via substrate chirality-induced asymmetric reactions, starting with the synthesis of the seven-membered ring through regioselective enolization of carvone, ring-expansion, and installation of a conjugated C═C bond. Further functionalization was then achieved through regioselective enolization, triflation, and installation of an isopropenyl group. During the synthesis, some exceptions to the well-known rules of "thermodynamic control" and "kinetic control" in enolization of asymmetric cyclic ketones were observed. In construction of the bridged five-membered and endoperoxy rings, a peroxycarbenium [3 + 2] cycloaddition reaction with alkenes was carried out with several alkenes-silyl-gem-dihydroperoxides of different relative configurations. However, no expected [3 + 2] products were observed. Finally, the five-membered ring was smoothly installed through an intramolecular Darzens reaction, and the peroxy functionality was introduced via a carbon-centered radical-mediated reaction with triplet oxygen, followed by an intramolecular etherification under acidic conditions. Comparison of the 1H and 13C NMR spectra of the synthetic analogue and the natural product revealed that the latter was definitely not an endoperoxide.
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Affiliation(s)
- Qinghong Zha
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Yikang Wu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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7
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Calow ADJ, Dailler D, Bower JF. Carbonylative N-Heterocyclization via Nitrogen-Directed C-C Bond Activation of Nonactivated Cyclopropanes. J Am Chem Soc 2022; 144:11069-11074. [PMID: 35715228 PMCID: PMC9248011 DOI: 10.1021/jacs.2c02921] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
![]()
Under Rh-catalyzed
conditions, secondary amines and anilines function
as directing groups to facilitate regioselective C–C bond activation
of nonactivated cyclopropanes. The resulting amino-stabilized rhodacycles
undergo carbonylative C–N bond formation en route to challenging
seven- and eight-membered lactams. The processes represent rare examples
where C–C bond oxidative addition of nonactivated cyclopropanes
is exploited in reaction design.
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Affiliation(s)
- Adam D J Calow
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, United Kingdom
| | - David Dailler
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, United Kingdom
| | - John F Bower
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, United Kingdom
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8
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Mali M, Sharma GVM, Ghosh S, Roisnel T, Carboni B, Berrée F. Simmons-Smith Cyclopropanation of Alkenyl 1,2-Bis(boronates): Stereoselective Access to Functionalized Cyclopropyl Derivatives. J Org Chem 2022; 87:7649-7657. [PMID: 35638869 DOI: 10.1021/acs.joc.2c00152] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A Simmons-Smith stereodefined procedure for the synthesis of cyclopropyl-1,2-bis(boronates) has been developed starting from the corresponding alkenes. The resulting compounds were then subjected to regioselective Suzuki-Miyaura couplings to produce diversely tri- or tetra-substituted arylcyclopropanes in good yields. Further functionalization with 2-lithiothiophene provided 1,2-bis(aryl)cyclopropanes.
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Affiliation(s)
- Maruti Mali
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Gangavaram V M Sharma
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, India
| | - Subhash Ghosh
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Thierry Roisnel
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France
| | - Bertrand Carboni
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France
| | - Fabienne Berrée
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France
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9
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Gutiérrez-Bonet Á, Popov S, Emmert MH, Hughes JME, Nolting AF, Ruccolo S, Wang Y. Asymmetric Synthesis of Tertiary and Secondary Cyclopropyl Boronates via Cyclopropanation of Enantioenriched Alkenyl Boronic Esters. Org Lett 2022; 24:3455-3460. [PMID: 35544734 DOI: 10.1021/acs.orglett.2c01018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The cyclopropanation of alkenyl boronates and subsequent derivatization of the boronate handle are a convenient strategy to quickly build molecular complexity and access diverse compounds with a high sp3 fraction. Herein, we describe the asymmetric cyclopropanation of enantioenriched hydrobenzoin-derived alkenyl boronic esters toward the synthesis of tertiary and secondary cyclopropyl boronates.
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Affiliation(s)
- Álvaro Gutiérrez-Bonet
- Process Research & Development, Merck Research Laboratories (MRL), Merck & Company, Incorporated, West Point, Pennsylvania 19486, United States
| | - Stasik Popov
- Process Research & Development, Merck Research Laboratories (MRL), Merck & Company, Incorporated, Rahway, New Jersey 07065, United States
| | - Marion H Emmert
- Process Research & Development, Merck Research Laboratories (MRL), Merck & Company, Incorporated, Rahway, New Jersey 07065, United States
| | - Jonathan M E Hughes
- Process Research & Development, Merck Research Laboratories (MRL), Merck & Company, Incorporated, Rahway, New Jersey 07065, United States
| | - Andrew F Nolting
- Process Research & Development, Merck Research Laboratories (MRL), Merck & Company, Incorporated, West Point, Pennsylvania 19486, United States
| | - Serge Ruccolo
- Process Research & Development, Merck Research Laboratories (MRL), Merck & Company, Incorporated, Rahway, New Jersey 07065, United States
| | - Yunyi Wang
- Analytical Research and Development, Merck Research Laboratories (MRL), Merck & Company, Incorporated, West Point, Pennsylvania 19486, United States
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10
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Synthesis of Novel C/D Ring Modified Bile Acids. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27072364. [PMID: 35408759 PMCID: PMC9000252 DOI: 10.3390/molecules27072364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 04/01/2022] [Accepted: 04/04/2022] [Indexed: 11/17/2022]
Abstract
Bile acid receptors have been identified as important targets for the development of new therapeutics to treat various metabolic and inflammatory diseases. The synthesis of new bile acid analogues can help elucidate structure–activity relationships and define compounds that activate these receptors selectively. Towards this, access to large quantities of a chenodeoxycholic acid derivative bearing a C-12 methyl and a C-13 to C-14 double bond provided an interesting scaffold to investigate the chemical manipulation of the C/D ring junction in bile acids. The reactivity of this alkene substrate with various zinc carbenoid species showed that those generated using the Furukawa methodology achieved selective α-cyclopropanation, whereas those generated using the Shi methodology reacted in an unexpected manner giving rise to a rearranged skeleton whereby the C ring has undergone contraction to form a novel spiro–furan ring system. Further derivatization of the cyclopropanated steroid included O-7 oxidation and epimerization to afford new bile acid derivatives for biological evaluation.
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11
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Landwehr EM, Baker MA, Oguma T, Burdge HE, Kawajiri T, Shenvi RA. Concise syntheses of GB22, GB13, and himgaline by cross-coupling and complete reduction. Science 2022; 375:1270-1274. [PMID: 35298242 PMCID: PMC10036211 DOI: 10.1126/science.abn8343] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Neuroactive metabolites from the bark of Galbulimima belgraveana occur in variable distributions among trees and are not easily accessible through chemical synthesis because of elaborate bond networks and dense stereochemistry. Previous syntheses of complex congeners such as himgaline have relied on iterative, stepwise installation of multiple methine stereocenters. We decreased the synthetic burden of himgaline chemical space to nearly one-third of the prior best (7 to 9 versus 19 to 31 steps) by cross-coupling high fraction aromatic building blocks (high Fsp2) followed by complete, stereoselective reduction to high fraction sp3 products (high Fsp3). This short entry into Galbulimima alkaloid space should facilitate extensive chemical exploration and biological interrogation.
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Affiliation(s)
| | - Meghan A. Baker
- Department of Chemistry, Scripps Research, La Jolla, United States
| | - Takuya Oguma
- Department of Chemistry, Scripps Research, La Jolla, United States
| | - Hannah E. Burdge
- Department of Chemistry, Scripps Research, La Jolla, United States
| | | | - Ryan A. Shenvi
- Department of Chemistry, Scripps Research, La Jolla, United States
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12
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Puriņš M, Waser J. Asymmetric Cyclopropanation and Epoxidation via a Catalytically Formed Chiral Auxiliary. Angew Chem Int Ed Engl 2022; 61:e202113925. [PMID: 35029319 PMCID: PMC9306854 DOI: 10.1002/anie.202113925] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Indexed: 11/07/2022]
Abstract
For the enantioselective diversification of a single starting material, a different chiral catalyst is usually required for each transformation. Herein, we extend the concept of catalytically formed chiral auxiliary from hydrogenation to the asymmetric cyclopropanation and epoxidation of tetra-substituted olefins, alleviating the need for different chiral catalysts in the alkene functionalization step. The chiral auxiliary is catalytically constructed from propargylic amines in a Pd-catalyzed enantioselective carboetherification step using a commercially available trifluoroacetaldehyde hemiacetal tether. The installed auxiliary is then controlling the stereochemistry of the cyclopropanation and the epoxidation using standard highly reactive reagents to give enantioenriched spirocyclic aminomethylcyclopropanols and α-amino-α-hydroxy ketones.
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Affiliation(s)
- Mikus Puriņš
- Laboratory of Catalysis and Organic Synthesis and NCCR Catalysis, Institut des Sciences et Ingénierie Chimique, Ecole Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis and NCCR Catalysis, Institut des Sciences et Ingénierie Chimique, Ecole Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland
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13
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Zhang X, Yu S, Liu Z, Long Y, Zhao J, Xu W, Zhang H, Zhang H. Development of a Kilogram-Scale Route for Clinical Sample Production of the Intravenous Anesthetic Cipepofol. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.1c00306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaowei Zhang
- Sichuan Haisco Pharmaceutical Co. Ltd., 136 Baili Road, Wenjiang District, Chengdu 611130, China
| | - Shuowen Yu
- Sichuan Haisco Pharmaceutical Co. Ltd., 136 Baili Road, Wenjiang District, Chengdu 611130, China
| | - Zhaojun Liu
- Sichuan Haisco Pharmaceutical Co. Ltd., 136 Baili Road, Wenjiang District, Chengdu 611130, China
| | - Yuanqiang Long
- Sichuan Haisco Pharmaceutical Co. Ltd., 136 Baili Road, Wenjiang District, Chengdu 611130, China
| | - Jinwei Zhao
- Sichuan Haisco Pharmaceutical Co. Ltd., 136 Baili Road, Wenjiang District, Chengdu 611130, China
| | - Wei Xu
- Sichuan Haisco Pharmaceutical Co. Ltd., 136 Baili Road, Wenjiang District, Chengdu 611130, China
| | - Haifeng Zhang
- Sichuan Haisco Pharmaceutical Co. Ltd., 136 Baili Road, Wenjiang District, Chengdu 611130, China
| | - Haijun Zhang
- Sichuan Haisco Pharmaceutical Co. Ltd., 136 Baili Road, Wenjiang District, Chengdu 611130, China
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14
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Puriņš M, Waser J. Asymmetric Cyclopropanation and Epoxidation via a Catalytically Formed Chiral Auxiliary. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202113925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mikus Puriņš
- Laboratory of Catalysis and Organic Synthesis and NCCR Catalysis Institut des Sciences et Ingénierie Chimique Ecole Polytechnique Fédérale de Lausanne 1015 Lausanne Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis and NCCR Catalysis Institut des Sciences et Ingénierie Chimique Ecole Polytechnique Fédérale de Lausanne 1015 Lausanne Switzerland
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15
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Li D, Zhang H, Lyons TW, Lu M, Achab A, Pu Q, Childers M, Mitcheltree MJ, Wang J, Martinot TA, McMinn SE, Sloman DL, Palani A, Beard A, Nogle L, Gathiaka S, Saurí J, Kim HY, Adpressa D, Spacciapoli P, Miller JR, Palte RL, Lesburg CA, Cumming J, Fischer C. Comprehensive Strategies to Bicyclic Prolines: Applications in the Synthesis of Potent Arginase Inhibitors. ACS Med Chem Lett 2021; 12:1678-1688. [PMID: 34795856 PMCID: PMC8591728 DOI: 10.1021/acsmedchemlett.1c00258] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 10/06/2021] [Indexed: 12/22/2022] Open
Abstract
Comprehensive synthetic strategies afforded a diverse set of structurally unique bicyclic proline-containing arginase inhibitors with a high degree of three-dimensionality. The analogs that favored the Cγ-exo conformation of the proline improved the arginase potency over the initial lead. The novel synthetic strategies reported here not only enable access to previously unknown stereochemically complex proline derivatives but also provide a foundation for the future synthesis of bicyclic proline analogs, which incorporate inherent three-dimensional character into building blocks, medicine, and catalysts and could have a profound impact on the conformation of proline-containing peptides and macrocycles.
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Affiliation(s)
- Derun Li
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Hongjun Zhang
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Thomas W Lyons
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Min Lu
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Abdelghani Achab
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Qinglin Pu
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Matthew Childers
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Matthew J Mitcheltree
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | | | - Theodore A Martinot
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Spencer E McMinn
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - David L Sloman
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Anandan Palani
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Adam Beard
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Lisa Nogle
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Symon Gathiaka
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Josep Saurí
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Hai-Young Kim
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Donovon Adpressa
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Peter Spacciapoli
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - J Richard Miller
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Rachel L Palte
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Charles A Lesburg
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Jared Cumming
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Christian Fischer
- Department of Discovery Chemistry, Department of Discovery Process Chemistry, Department of In Vitro Pharmacology, Department of Computational and Structural Chemistry, and Department of Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
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16
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The cyclopropanation of non-activated 1-bromoalkenes by Me3Al – CH2I2 reagent. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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Lovato K, Bhakta U, Ng YP, Kürti L. O-Cyclopropyl hydroxylamines: gram-scale synthesis and utility as precursors for N-heterocycles. Org Biomol Chem 2021; 18:3281-3287. [PMID: 32319502 DOI: 10.1039/d0ob00611d] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
O-Cyclopropyl hydroxylamines, now accessible via a novel and scalable synthetic route, have been demonstrated to be bench-stable and practical precursors for the synthesis of N-heterocycles via a di-heteroatom [3,3]-sigmatropic rearrangement. In order to study the reactivity of these compounds in depth, a robust synthesis of both ring-substituted and ring-unsubstituted O-cyclopropyl hydroxylamines has been developed. Metal-free conditions for the facile N-arylation of these precursors were also identified. It was found that the N-arylated O-cyclopropyl hydroxamates can efficiently undergo a one-pot [3,3]-sigmatropic rearrangement/cyclization/rearomatization cascade under base-mediated conditions to furnish a structurally diverse set of substituted tetrahydroquinolines.
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Affiliation(s)
- Kaitlyn Lovato
- Department of Chemistry, Rice University, Bioscience Research Collaborative Houston, TX 77005, USA.
| | - Urmibhusan Bhakta
- Department of Chemistry, Rice University, Bioscience Research Collaborative Houston, TX 77005, USA.
| | - Yi Pin Ng
- Division of Chemistry and Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, 639798, Singapore
| | - László Kürti
- Department of Chemistry, Rice University, Bioscience Research Collaborative Houston, TX 77005, USA.
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18
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Ma C, Shi C, Liu Y, Pan L, Zhang X, Zou JJ. Synthesis and Performance of Strained Multicyclic Hydrocarbons as Highly Potential High-Energy-Density Fuels. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c00734] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Chi Ma
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Chengxiang Shi
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Yakun Liu
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Lun Pan
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Xiangwen Zhang
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Ji-Jun Zou
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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19
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Hyun YE, Kim HR, Jeong LS. Stereoselective Synthesis of ( S)- and ( N)-Cyclopropyl-Fused Carbocyclic Nucleosides Using Stereoselective Cyclopropanation. J Org Chem 2021; 86:9828-9837. [PMID: 34184528 DOI: 10.1021/acs.joc.1c00705] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
To determine which sugar conformation is favorable in binding to peroxisome proliferator-activated receptors, the conformationally locked south (S) and north (N) analogues were asymmetrically synthesized using a bicyclo[3.1.0]hexane template. The (S)-conformer was synthesized by employing "reagent-controlled" Charette asymmetric cyclopropanation in a 100% stereoselective manner, whereas the (N)-conformer was stereoselectively synthesized by using "substrate-controlled" hydroxyl-directed Simmons-Smith cyclopropanation as a key step.
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Affiliation(s)
- Young Eum Hyun
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Hong-Rae Kim
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Lak Shin Jeong
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Korea
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20
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Law JA, Bartfield NM, Frederich JH. Site-Specific Alkene Hydromethylation via Protonolysis of Titanacyclobutanes. Angew Chem Int Ed Engl 2021; 60:14360-14364. [PMID: 33871123 DOI: 10.1002/anie.202103278] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Indexed: 11/09/2022]
Abstract
Methyl groups are ubiquitous in biologically active molecules. Thus, new tactics to introduce this alkyl fragment into polyfunctional structures are of significant interest. With this goal in mind, a direct method for the Markovnikov hydromethylation of alkenes is reported. This method exploits the degenerate metathesis reaction between the titanium methylidene unveiled from Cp2 Ti(μ-Cl)(μ-CH2 )AlMe2 (Tebbe's reagent) and unactivated alkenes. Protonolysis of the resulting titanacyclobutanes in situ effects hydromethylation in a chemo-, regio-, and site-selective manner. The broad utility of this method is demonstrated across a series of mono- and di-substituted alkenes containing pendant alcohols, ethers, amides, carbamates, and basic amines.
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Affiliation(s)
- James A Law
- Department of Chemistry and Biochemistry, Florida State University, 95 Cheiftan Way, Tallahassee, FL, 32306, USA
| | - Noah M Bartfield
- Department of Chemistry and Biochemistry, Florida State University, 95 Cheiftan Way, Tallahassee, FL, 32306, USA
| | - James H Frederich
- Department of Chemistry and Biochemistry, Florida State University, 95 Cheiftan Way, Tallahassee, FL, 32306, USA
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21
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Law JA, Bartfield NM, Frederich JH. Site‐Specific Alkene Hydromethylation via Protonolysis of Titanacyclobutanes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- James A. Law
- Department of Chemistry and Biochemistry Florida State University 95 Cheiftan Way Tallahassee FL 32306 USA
| | - Noah M. Bartfield
- Department of Chemistry and Biochemistry Florida State University 95 Cheiftan Way Tallahassee FL 32306 USA
| | - James H. Frederich
- Department of Chemistry and Biochemistry Florida State University 95 Cheiftan Way Tallahassee FL 32306 USA
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22
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Lyu H, Kevlishvili I, Yu X, Liu P, Dong G. Boron insertion into alkyl ether bonds via zinc/nickel tandem catalysis. Science 2021; 372:175-182. [PMID: 33833121 DOI: 10.1126/science.abg5526] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 03/05/2021] [Indexed: 12/23/2022]
Abstract
Mild methods to cleave the carbon-oxygen (C-O) bond in alkyl ethers could simplify chemical syntheses through the elaboration of these robust, readily available precursors. Here we report that dibromoboranes react with alkyl ethers in the presence of a nickel catalyst and zinc reductant to insert boron into the C-O bond. Subsequent reactivity can effect oxygen-to-nitrogen substitution or one-carbon homologation of cyclic ethers and more broadly streamline preparation of bioactive compounds. Mechanistic studies reveal a cleavage-then-rebound pathway via zinc/nickel tandem catalysis.
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Affiliation(s)
- Hairong Lyu
- Department of Chemistry, University of Chicago, Chicago, IL 60637, USA
| | - Ilia Kevlishvili
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Xuan Yu
- Department of Chemistry, University of Chicago, Chicago, IL 60637, USA
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA.
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, IL 60637, USA.
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23
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Xie Y, Huang W, Qin S, Fu S, Liu B. Catalytic radical cascade cyclization of alkene-tethered enones to fused bicyclic cyclopropanols. Org Chem Front 2021. [DOI: 10.1039/d1qo01312b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fused bicyclic cyclopropanols were achieved via an unprecedented HAT-triggered radical cascade reaction of alkene-tethered enones in the presence of an iron catalyst.
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Affiliation(s)
- Ying Xie
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong, 643000, China
| | - Wei Huang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Song Qin
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Shaomin Fu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Bo Liu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
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24
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McDonald TR, Mills LR, West MS, Rousseaux SAL. Selective Carbon–Carbon Bond Cleavage of Cyclopropanols. Chem Rev 2020; 121:3-79. [DOI: 10.1021/acs.chemrev.0c00346] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Tyler R. McDonald
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - L. Reginald Mills
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Michael S. West
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Sophie A. L. Rousseaux
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
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25
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Liu XY, Tan YX, Wang X, Xu H, Wang YH, Tian P, Lin GQ. Nickel(II)-Catalyzed Addition of Aryl-, Alkenyl-, and Alkylboronic Acids to Alkenylazaarenes. Org Lett 2020; 22:4038-4042. [PMID: 32379460 DOI: 10.1021/acs.orglett.0c01425] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A nickel(II)-catalyzed addition of aryl-, alkenyl-, and alkylboronic acids to alkenylazaarenes was presented. This reaction exhibited high efficiency (up to 93% yield), a broad substrate scope (seven types of heterocycles), and good functional group compatibility. The resulting products can be further transformed to many useful building blocks. Finally, the preliminary studies suggested that the adjacent N atom of the heterocycles was essential for the high reactivity.
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Affiliation(s)
- Xing-Yu Liu
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China.,The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China.,School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Yun-Xuan Tan
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xin Wang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Hao Xu
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Yu-Hui Wang
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Ping Tian
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China.,The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Guo-Qiang Lin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China.,The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China.,School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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26
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Sadhukhan S, Santhi J, Baire B. The α,α‐Dihalocarbonyl Building Blocks: An Avenue for New Reaction Development in Organic Synthesis. Chemistry 2020; 26:7145-7175. [DOI: 10.1002/chem.201905475] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 01/08/2020] [Indexed: 01/04/2023]
Affiliation(s)
- Santu Sadhukhan
- Department of ChemistryIndian Institute of Technology Madras Chennai 600036 India
| | - Jampani Santhi
- Department of ChemistryIndian Institute of Technology Madras Chennai 600036 India
| | - Beeraiah Baire
- Department of ChemistryIndian Institute of Technology Madras Chennai 600036 India
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27
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Deng J, Ning Y, Tian H, Gui J. Divergent Synthesis of Antiviral Diterpenes Wickerols A and B. J Am Chem Soc 2020; 142:4690-4695. [PMID: 32073850 DOI: 10.1021/jacs.9b11838] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Wickerols A and B are diterpene natural products that have a novel fused 6-5-6-6 ring framework and exhibit potent antiviral activity against the H1N1 type A influenza virus. Herein, we report a divergent synthesis of wickerols A and B in 16 and 15 steps, respectively, from commercial sitolactone. The key reactions of the synthesis are a SmI2-mediated intramolecular ketone-allylic acetate reductive cyclization, a Claisen rearrangement, and an intramolecular alkylation/aldol reaction that rapidly assembled the compact tetracyclic core framework in a stereocontrolled manner. The work described herein allowed us to confirm the absolute configurations of wickerols A and B.
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Affiliation(s)
- Jiachen Deng
- 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, 345 Lingling Road, Shanghai 200032, China
| | - Yuhan Ning
- 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, 345 Lingling Road, Shanghai 200032, China
| | - Hailong Tian
- 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, 345 Lingling Road, Shanghai 200032, China
| | - Jinghan Gui
- 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, 345 Lingling Road, Shanghai 200032, China
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28
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Liu Q, You B, Xie G, Wang X. Developments in the construction of cyclopropanols. Org Biomol Chem 2020; 18:191-204. [PMID: 31793614 DOI: 10.1039/c9ob02197c] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The ring-opening of cyclopropanols is one of the most active areas of research and it has been well documented in recent years owing to subsequent coupling with various partners, thus providing the facile syntheses of a large number of multifunctional compounds that may otherwise be difficult to access. Evidently, the useful cascade reaction requires easy access to diversely functionalized cyclopropanol substrates. However, developments in the construction of cyclopropanols have not received adequate attention. Herein, recent reports on the formation of cyclopropanols are summarized, and the highly stereoselective production of new promising substrates for the cyclopropanol ring-opening/cross-coupling reactions are introduced and improved syntheses of known cyclopropanols are depicted. This review may facilitate more interesting applications of the cyclopropanol ring-opening/coupling reaction in the synthesis of pharmaceutical compounds, natural products, and structurally more diversified organic synthetic intermediates.
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Affiliation(s)
- Qiang Liu
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, 523808, China.
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29
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Ueno M, Miyoshi N, Hanada K, Kobayashi S. Three‐Component, One‐Pot Tandem Sonogashira/Suzuki‐Miyaura Coupling Reactions for the Synthesis of a Library of Ceramide‐Transport Protein Inhibitors Designed In Silico. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.201900689] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Masaharu Ueno
- Department of Chemistry School of ScienceThe University of Tokyo Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- Department of Natural Science Graduate School of Advanced Technology and ScienceTokushima University 2-1 Minami-jousanjima Tokushima 770-8506 Japan
| | - Norikazu Miyoshi
- Department of Natural Science Graduate School of Advanced Technology and ScienceTokushima University 2-1 Minami-jousanjima Tokushima 770-8506 Japan
| | - Kentaro Hanada
- Department of Biochemistry & Cell BiologyNational Institute of Infectious Diseases 1-23-1 Toyama, Shinjuku-ku Tokyo 162-8640 Japan
| | - Shū Kobayashi
- Department of Chemistry School of ScienceThe University of Tokyo Hongo, Bunkyo-ku Tokyo 113-0033 Japan
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30
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Zhang J, Hao J, Huang Z, Han J, He Z. PIII-Mediated intramolecular cyclopropanation and metal-free synthesis of cyclopropane-fused heterocycles. Chem Commun (Camb) 2020; 56:10251-10254. [DOI: 10.1039/d0cc04086j] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The carbene-like reactivity of the Kukhtin–Ramirez adduct enables the first reductive intramolecular cyclopropanation, which provides easy access to highly functionalized cyclopropane-fused heterocycles.
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Affiliation(s)
- Jiayong Zhang
- State Key Laboratory of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
| | - Jiahang Hao
- State Key Laboratory of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
| | - Zhiqiang Huang
- State Key Laboratory of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
| | - Jie Han
- State Key Laboratory of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
| | - Zhengjie He
- State Key Laboratory of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
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31
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Shimoda K, Yamaoka Y, Yoo D, Yamada KI, Takikawa H, Takasu K. Total Syntheses of Allelopathic 4-Oxyprotoilludanes, Melleolides, and Echinocidins. J Org Chem 2019; 84:11014-11024. [PMID: 31403293 DOI: 10.1021/acs.joc.9b01589] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Stereocontrolled total syntheses of allelopathic 4-oxyprotoilludane sesquiterpenes, melleolide, melleolide F, and echinocidins B and D were achieved. The curved 5/6/4 tricyclic system with an angular hydroxy group was built via three key transformations: (1) Me3Al-catalyzed [2 + 2] cycloaddition of a ketene silyl acetal with a propiolate, (2) reductive ring-opening of a cyclic hemiketal, and (3) the intramolecular Morita-Baylis-Hillman reaction. This synthetic route represents a new and reliable strategy to obtain protoilludanes with several oxy-functional groups.
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Affiliation(s)
- Kazuma Shimoda
- Graduate School of Pharmaceutical Sciences , Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501 , Japan
| | - Yousuke Yamaoka
- Graduate School of Pharmaceutical Sciences , Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501 , Japan
| | - Dongeun Yoo
- Graduate School of Pharmaceutical Sciences , Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501 , Japan
| | - Ken-Ichi Yamada
- Graduate School of Pharmaceutical Sciences , Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501 , Japan
| | - Hiroshi Takikawa
- Graduate School of Pharmaceutical Sciences , Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501 , Japan
| | - Kiyosei Takasu
- Graduate School of Pharmaceutical Sciences , Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501 , Japan
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32
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Eugui M, Parpal F, López Radcenco A, Moyna G. Synthetic Methods for the Preparation of Norcarane Scaffolds. A Review. ORG PREP PROCED INT 2018. [DOI: 10.1080/00304948.2018.1462048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Macarena Eugui
- Departamento de Química del Litoral, CENUR Litoral Norte, Universidad de la República, Ruta 3 Km 363, Paysandú 60000, Uruguay
| | - Florencia Parpal
- Departamento de Química del Litoral, CENUR Litoral Norte, Universidad de la República, Ruta 3 Km 363, Paysandú 60000, Uruguay
| | - Andrés López Radcenco
- Departamento de Química del Litoral, CENUR Litoral Norte, Universidad de la República, Ruta 3 Km 363, Paysandú 60000, Uruguay
| | - Guillermo Moyna
- Departamento de Química del Litoral, CENUR Litoral Norte, Universidad de la República, Ruta 3 Km 363, Paysandú 60000, Uruguay
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33
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Flick AC, Ding HX, Leverett CA, Fink SJ, O’Donnell CJ. Synthetic Approaches to New Drugs Approved During 2016. J Med Chem 2018; 61:7004-7031. [DOI: 10.1021/acs.jmedchem.8b00260] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Andrew C. Flick
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Hong X. Ding
- Pharmacodia (Beijing) Co., Ltd., Beijing, 100085, China
| | - Carolyn A. Leverett
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Sarah J. Fink
- BioDuro, 11011 Torreyana Road, San Diego, California 92121, United States
| | - Christopher J. O’Donnell
- Pfizer Worldwide Research and Development, Groton Laboratories, 445 Eastern Point Road, Groton, Connecticut 06340, United States
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34
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Aluminum carbenoids in the cyclopropanation of fulvenes. Russ Chem Bull 2018. [DOI: 10.1007/s11172-018-2096-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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35
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Murray SA, Luc ECM, Meek SJ. Synthesis of Alkenyl Boronates from Epoxides with Di-[B(pin)]-methane via Pd-Catalyzed Dehydroboration. Org Lett 2018; 20:469-472. [PMID: 29319323 DOI: 10.1021/acs.orglett.7b03853] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A practical and broadly applicable catalytic method for the synthesis of (E)-alkenylborons is presented. Reactions are promoted by [Pd(Cl)(η3-C3H5)]2 and proceed by the dehydroboration of cyclic borates. Through the use of epoxides and readily available di-B(pin)-methane (pin = pinacolato), a range of allylic alcohol-containing alkenyl boronates, including those that contain a tertiary alcohol, may be prepared in up to 75% yield and >20:1 E/Z.
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Affiliation(s)
- Stephanie A Murray
- Department of Chemistry, The University of North Carolina , Chapel Hill, North Carolina 27599-3290, United States
| | - Eugenia C M Luc
- Department of Chemistry, The University of North Carolina , Chapel Hill, North Carolina 27599-3290, United States
| | - Simon J Meek
- Department of Chemistry, The University of North Carolina , Chapel Hill, North Carolina 27599-3290, United States
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36
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Werth J, Uyeda C. Regioselective Simmons-Smith-type cyclopropanations of polyalkenes enabled by transition metal catalysis. Chem Sci 2018; 9:1604-1609. [PMID: 29675205 PMCID: PMC5890799 DOI: 10.1039/c7sc04861k] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 12/23/2017] [Indexed: 01/26/2023] Open
Abstract
A [ i-PrPDI]CoBr2 complex (PDI = pyridine-diimine) catalyzes Simmons-Smith-type reductive cyclopropanation reactions using CH2Br2 in combination with Zn. In contrast to its non-catalytic variant, the cobalt-catalyzed cyclopropanation is capable of discriminating between alkenes of similar electronic properties based on their substitution patterns: monosubstituted > 1,1-disubstituted > (Z)-1,2-disubstituted > (E)-1,2-disubstituted > trisubstituted. This property enables synthetically useful yields to be achieved for the monocyclopropanation of polyalkene substrates, including terpene derivatives and conjugated 1,3-dienes. Mechanistic studies implicate a carbenoid species containing both Co and Zn as the catalytically relevant methylene transfer agent.
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Affiliation(s)
- Jacob Werth
- Department of Chemistry , Purdue University , West Lafayette , IN 47907 , USA .
| | - Christopher Uyeda
- Department of Chemistry , Purdue University , West Lafayette , IN 47907 , USA .
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37
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Maeda H, Sakurai H, Segi M. Intramolecular Photoreactions of 9-Cyanophenanthrene-Linked Arylcyclopropanes. ACS OMEGA 2017; 2:8697-8708. [PMID: 31457401 PMCID: PMC6645483 DOI: 10.1021/acsomega.7b01439] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 11/23/2017] [Indexed: 06/10/2023]
Abstract
With the aim of developing efficient and useful processes for the preparation of polycyclic organic compounds, intramolecular [3 + 2] photoreactions of 9-cyanophenanthrene-linked arylcyclopropanes were investigated. Photoreactions of 6a,b, which contain respective p-methoxyphenylcyclopropane and phenylcyclopropane moieties, form the intramolecular [3 + 2] photocycloadducts, endo- and exo-7a,b, along with the dihydroisochroman derivatives, cis- and trans-8a,b. The efficiency of the photoreaction of 6a is higher when benzene rather than acetonitrile is used as a solvent. Interestingly, this solvent effect is reversed in the photoreaction of 6b, where the efficiency is higher in acetonitrile than that in benzene. On the basis of the observed effects of substituents and solvents, fluorescence emission from intramolecular exciplexes, and ΔGs for intramolecular single electron transfer (SET), we propose that the photoreactions proceed through pathways involving the initial formation of singlet intramolecular exciplexes and/or SET between the excited 9-cyanophenanthrene and the ground-state arylcyclopropane moieties.
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38
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Synthesis of Spiro[2.2]pentanes and Spiro[2.3]hexanes Employing the Me3
Al/CH2
I2
Reagent. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700991] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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39
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Affiliation(s)
- Christian Ebner
- Eidgenössische Technische Hochschule Zürich, Vladimir-Prelog-Weg 3, 8093 Zürich, Switzerland
| | - Erick M. Carreira
- Eidgenössische Technische Hochschule Zürich, Vladimir-Prelog-Weg 3, 8093 Zürich, Switzerland
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40
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Benoit G, Charette AB. Diastereoselective Borocyclopropanation of Allylic Ethers Using a Boromethylzinc Carbenoid. J Am Chem Soc 2017; 139:1364-1367. [DOI: 10.1021/jacs.6b09090] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Guillaume Benoit
- Centre in Green Chemistry
and Catalysis, Department of Chemistry, Université de Montréal, P.O. Box 6128, Station Downtown, Montréal, Québec H3C 3J7, Canada
| | - André B. Charette
- Centre in Green Chemistry
and Catalysis, Department of Chemistry, Université de Montréal, P.O. Box 6128, Station Downtown, Montréal, Québec H3C 3J7, Canada
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41
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Erickson LW, Lucas EL, Tollefson EJ, Jarvo ER. Nickel-Catalyzed Cross-Electrophile Coupling of Alkyl Fluorides: Stereospecific Synthesis of Vinylcyclopropanes. J Am Chem Soc 2016; 138:14006-14011. [DOI: 10.1021/jacs.6b07567] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Lucas W. Erickson
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Erika L. Lucas
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Emily J. Tollefson
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Elizabeth R. Jarvo
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
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42
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Cyclopropanation of [2,2’]biadamantylidene with Me3Al–CH2I2 reagent. MENDELEEV COMMUNICATIONS 2016. [DOI: 10.1016/j.mencom.2016.09.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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43
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Maeda H, Matsuda S, Mizuno K. Intramolecular Photocycloaddition Reactions of Arylcyclopropane Tethered 1-Cyanonaphthalenes. J Org Chem 2016; 81:8544-51. [DOI: 10.1021/acs.joc.6b01721] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hajime Maeda
- Department
of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Shoji Matsuda
- Department
of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Kazuhiko Mizuno
- Department
of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
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44
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Sousa JLC, Talhi O, Mendes RF, Almeida Paz FA, Bachari K, Silva AMS. Catalytic One-Pot Diastereoselective Michael-Initiated Ring-Closure of Methyl Ketones with 3-Bromochromones: Synthesis of Cyclopropa[b]chromanones. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600413] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Joana L. C. Sousa
- QOPNA; Department of Chemistry; University of Aveiro; 3810-193 Aveiro Portugal
| | - Oualid Talhi
- QOPNA; Department of Chemistry; University of Aveiro; 3810-193 Aveiro Portugal
- Centre de Recherche Scientifique et Technique en Analyses Physico-Chimiques CRAPC; BP384 42004 Bou-Ismail Tipaza Algeria
| | - Ricardo F. Mendes
- CICECO - Aveiro Institute of Materials; Department of Chemistry; University of Aveiro; 3810-193 Aveiro Portugal
| | - Filipe A. Almeida Paz
- CICECO - Aveiro Institute of Materials; Department of Chemistry; University of Aveiro; 3810-193 Aveiro Portugal
| | - Khaldoun Bachari
- Centre de Recherche Scientifique et Technique en Analyses Physico-Chimiques CRAPC; BP384 42004 Bou-Ismail Tipaza Algeria
| | - Artur M. S. Silva
- QOPNA; Department of Chemistry; University of Aveiro; 3810-193 Aveiro Portugal
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45
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Pitts CR, Ling B, Snyder JA, Bragg AE, Lectka T. Aminofluorination of Cyclopropanes: A Multifold Approach through a Common, Catalytically Generated Intermediate. J Am Chem Soc 2016; 138:6598-609. [DOI: 10.1021/jacs.6b02838] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Cody Ross Pitts
- Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Bill Ling
- Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Joshua A. Snyder
- Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Arthur E. Bragg
- Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Thomas Lectka
- Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
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46
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Volgraf M, Sellers BD, Jiang Y, Wu G, Ly CQ, Villemure E, Pastor RM, Yuen PW, Lu A, Luo X, Liu M, Zhang S, Sun L, Fu Y, Lupardus PJ, Wallweber HJA, Liederer BM, Deshmukh G, Plise E, Tay S, Reynen P, Herrington J, Gustafson A, Liu Y, Dirksen A, Dietz MGA, Liu Y, Wang TM, Hanson JE, Hackos D, Scearce-Levie K, Schwarz JB. Discovery of GluN2A-Selective NMDA Receptor Positive Allosteric Modulators (PAMs): Tuning Deactivation Kinetics via Structure-Based Design. J Med Chem 2016; 59:2760-79. [PMID: 26919761 DOI: 10.1021/acs.jmedchem.5b02010] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The N-methyl-D-aspartate receptor (NMDAR) is a Na(+) and Ca(2+) permeable ionotropic glutamate receptor that is activated by the coagonists glycine and glutamate. NMDARs are critical to synaptic signaling and plasticity, and their dysfunction has been implicated in a number of neurological disorders, including schizophrenia, depression, and Alzheimer's disease. Herein we describe the discovery of potent GluN2A-selective NMDAR positive allosteric modulators (PAMs) starting from a high-throughput screening hit. Using structure-based design, we sought to increase potency at the GluN2A subtype, while improving selectivity against related α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors (AMPARs). The structure-activity relationship of channel deactivation kinetics was studied using a combination of electrophysiology and protein crystallography. Effective incorporation of these strategies resulted in the discovery of GNE-0723 (46), a highly potent and brain penetrant GluN2A-selective NMDAR PAM suitable for in vivo characterization.
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Affiliation(s)
| | | | - Yu Jiang
- Pharmaron-Beijing Co. Ltd. , 6 Taihe Road, BDA, Beijing 100176, PR China
| | - Guosheng Wu
- Pharmaron-Beijing Co. Ltd. , 6 Taihe Road, BDA, Beijing 100176, PR China
| | | | | | | | - Po-wai Yuen
- Pharmaron-Beijing Co. Ltd. , 6 Taihe Road, BDA, Beijing 100176, PR China
| | - Aijun Lu
- Pharmaron-Beijing Co. Ltd. , 6 Taihe Road, BDA, Beijing 100176, PR China
| | - Xifeng Luo
- Pharmaron-Beijing Co. Ltd. , 6 Taihe Road, BDA, Beijing 100176, PR China
| | - Mingcui Liu
- Pharmaron-Beijing Co. Ltd. , 6 Taihe Road, BDA, Beijing 100176, PR China
| | - Shun Zhang
- Pharmaron-Beijing Co. Ltd. , 6 Taihe Road, BDA, Beijing 100176, PR China
| | - Liang Sun
- Pharmaron-Beijing Co. Ltd. , 6 Taihe Road, BDA, Beijing 100176, PR China
| | - Yuhong Fu
- Pharmaron-Beijing Co. Ltd. , 6 Taihe Road, BDA, Beijing 100176, PR China
| | | | | | | | | | | | | | | | | | | | | | - Akim Dirksen
- Ion Channels Group, Evotec AG ; Manfred Eigen Campus, Essener Bogen 7, 22419 Hamburg, Germany
| | - Matthias G A Dietz
- Ion Channels Group, Evotec AG ; Manfred Eigen Campus, Essener Bogen 7, 22419 Hamburg, Germany
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47
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Ebner C, Carreira EM. Pentafulvene for the Synthesis of Complex Natural Products: Total Syntheses of (±)-Pallambins A and B. Angew Chem Int Ed Engl 2015; 54:11227-30. [DOI: 10.1002/anie.201505126] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Indexed: 11/07/2022]
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48
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Ebner C, Carreira EM. Pentafulvene for the Synthesis of Complex Natural Products: Total Syntheses of (±)-Pallambins A and B. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505126] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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49
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Vabre R, Island B, Diehl CJ, Schreiner PR, Marek I. Forming Stereogenic Centers in Acyclic Systems from Alkynes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504756] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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50
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Vabre R, Island B, Diehl CJ, Schreiner PR, Marek I. Forming Stereogenic Centers in Acyclic Systems from Alkynes. Angew Chem Int Ed Engl 2015; 54:9996-9. [DOI: 10.1002/anie.201504756] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Indexed: 12/15/2022]
Affiliation(s)
- Roxane Vabre
- The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry and Lise Meitner‐Minerva Center for Computational Quantum Chemistry, Technion‐Israel Institute of Technology, Technion City, Haifa 32000 (Israel)
| | - Biana Island
- The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry and Lise Meitner‐Minerva Center for Computational Quantum Chemistry, Technion‐Israel Institute of Technology, Technion City, Haifa 32000 (Israel)
| | - Claudia J. Diehl
- Institute of Organic Chemistry, Justus‐Liebig University, Heinrich‐Buff‐Ring 58, 35392 Giessen (Germany)
| | - Peter R. Schreiner
- Institute of Organic Chemistry, Justus‐Liebig University, Heinrich‐Buff‐Ring 58, 35392 Giessen (Germany)
| | - Ilan Marek
- The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry and Lise Meitner‐Minerva Center for Computational Quantum Chemistry, Technion‐Israel Institute of Technology, Technion City, Haifa 32000 (Israel)
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