1
|
Morales-Colón MT, See YY, Lee SJ, Scott PJH, Bland DC, Sanford MS. Tetramethylammonium Fluoride Alcohol Adducts for S NAr Fluorination. Org Lett 2021; 23:4493-4498. [PMID: 34029110 DOI: 10.1021/acs.orglett.1c01490] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Nucleophilic aromatic fluorination (SNAr) is among the most common methods for the formation of C(sp2)-F bonds. Despite many recent advances, a long-standing limitation of these transformations is the requirement for rigorously dry, aprotic conditions to maintain the nucleophilicity of fluoride and suppress the generation of side products. This report addresses this challenge by leveraging tetramethylammonium fluoride alcohol adducts (Me4NF·ROH) as fluoride sources for SNAr fluorination. Through systematic tuning of the alcohol substituent (R), tetramethylammonium fluoride tert-amyl alcohol (Me4NF·t-AmylOH) was identified as an inexpensive, practical, and bench-stable reagent for SNAr fluorination under mild and convenient conditions (80 °C in DMSO, without the requirement for drying of reagents or solvent). A substrate scope of more than 50 (hetero) aryl halides and nitroarene electrophiles is demonstrated.
Collapse
Affiliation(s)
- María T Morales-Colón
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Yi Yang See
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - So Jeong Lee
- Department of Radiology, University of Michigan, 1301 Catherine, Ann Arbor, Michigan 48109, United States
| | - Peter J H Scott
- Department of Radiology, University of Michigan, 1301 Catherine, Ann Arbor, Michigan 48109, United States
| | - Douglas C Bland
- Process Sciences & Technology, Corteva Agriscience, 9330 Zionsville Road, Indianapolis, Indiana 46268, United States
| | - Melanie S Sanford
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| |
Collapse
|
2
|
Valvi A, Tiwari S. Solvent‐Controlled Regioselectivity in Nucleophilic Substitution Reactions of 1‐X‐2,4‐Difluorobenzenes with Morpholine Using Deep Eutectic Solvents. ChemistrySelect 2021. [DOI: 10.1002/slct.202002806] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Arun Valvi
- Department of Chemistry Karmaveer Bhaurao Patil College Vashi, Navi Mumbai 400703 India
| | - Shraeddha Tiwari
- Department of Chemistry Institute of Chemical Technology Mumbai 400019 India
| |
Collapse
|
3
|
Song J, Lee JW, Jang S, Jung D, Lee T, Min KH. Novel Effect of Thiourea/Urea Additives on the Nucleophilic Aromatic Substitution of 2,4‐Dimethoxynitrobenzene. B KOREAN CHEM SOC 2019. [DOI: 10.1002/bkcs.11847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jiho Song
- College of PharmacyChung‐Ang University Seoul 06974 Republic of Korea
| | - Jung Wuk Lee
- College of PharmacyChung‐Ang University Seoul 06974 Republic of Korea
| | - Soyeon Jang
- College of PharmacyChung‐Ang University Seoul 06974 Republic of Korea
| | - Danbee Jung
- College of PharmacyChung‐Ang University Seoul 06974 Republic of Korea
| | - Taeho Lee
- College of PharmacyKyungpook National University Deagu 41566 Republic of Korea
| | - Kyung Hoon Min
- College of PharmacyChung‐Ang University Seoul 06974 Republic of Korea
| |
Collapse
|
4
|
Aretz CD, Morwitzer MJ, Sanford AG, Hogan AM, Portillo MV, Kharade SV, Kramer M, McCarthey JB, Trigueros RR, Piermarini PM, Denton JS, Hopkins CR. Discovery and Characterization of 2-Nitro-5-(4-(phenylsulfonyl)piperazin-1-yl)- N-(pyridin-4-ylmethyl)anilines as Novel Inhibitors of the Aedes aegypti Kir1 ( AeKir1) Channel. ACS Infect Dis 2019; 5:917-931. [PMID: 30832472 DOI: 10.1021/acsinfecdis.8b00368] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Mosquito-borne arboviral diseases such as Zika, dengue fever, and chikungunya are transmitted to humans by infected adult female Aedes aegypti mosquitoes and affect a large portion of the world's population. The Kir1 channel in Ae. aegypti ( AeKir1) is an important ion channel in the functioning of mosquito Malpighian (renal) tubules and one that can be manipulated in order to disrupt excretory functions in mosquitoes. We have previously reported the discovery of various scaffolds that are active against the AeKir1 channel. Herein we report the synthesis and biological characterization of a new 2-nitro-5-(4-(phenylsulfonyl) piperazin-1-yl)- N-(pyridin-4-ylmethyl)anilines scaffold as inhibitors of AeKir1. This new scaffold is more potent in vitro compared to the previously reported scaffolds, and the molecules kill mosquito larvae.
Collapse
Affiliation(s)
| | | | | | | | | | - Sujay V. Kharade
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, United States
| | - Meghan Kramer
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, United States
| | - James B. McCarthey
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, United States
| | | | - Peter M. Piermarini
- Department of Entomology, Ohio State University, Wooster, Ohio 44691, United States
| | - Jerod S. Denton
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, United States
| | | |
Collapse
|
5
|
Albert L, Peñalver A, Djokovic N, Werel L, Hoffarth M, Ruzic D, Xu J, Essen L, Nikolic K, Dou Y, Vázquez O. Modulating Protein–Protein Interactions with Visible‐Light‐Responsive Peptide Backbone Photoswitches. Chembiochem 2019; 20:1417-1429. [DOI: 10.1002/cbic.201800737] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Lea Albert
- Fachbereich ChemiePhilipps-Universität Marburg Hans-Meerwein-Strasse 4 35043 Marburg Germany
| | - Alberto Peñalver
- Fachbereich ChemiePhilipps-Universität Marburg Hans-Meerwein-Strasse 4 35043 Marburg Germany
| | - Nemanja Djokovic
- Department of Pharmaceutical ChemistryFaculty of PharmacyUniversity of Belgrade 450 Vojvode Stepe 11000 Belgrade Serbia
| | - Laura Werel
- Fachbereich ChemiePhilipps-Universität Marburg Hans-Meerwein-Strasse 4 35043 Marburg Germany
| | - Malte Hoffarth
- Fachbereich ChemiePhilipps-Universität Marburg Hans-Meerwein-Strasse 4 35043 Marburg Germany
| | - Dusan Ruzic
- Department of Pharmaceutical ChemistryFaculty of PharmacyUniversity of Belgrade 450 Vojvode Stepe 11000 Belgrade Serbia
| | - Jing Xu
- Department of PathologyUniversity of Michigan Ann Arbor MI 48109 USA
| | - Lars‐Oliver Essen
- Fachbereich ChemiePhilipps-Universität Marburg Hans-Meerwein-Strasse 4 35043 Marburg Germany
| | - Katarina Nikolic
- Department of Pharmaceutical ChemistryFaculty of PharmacyUniversity of Belgrade 450 Vojvode Stepe 11000 Belgrade Serbia
| | - Yali Dou
- Department of PathologyUniversity of Michigan Ann Arbor MI 48109 USA
| | - Olalla Vázquez
- Fachbereich ChemiePhilipps-Universität Marburg Hans-Meerwein-Strasse 4 35043 Marburg Germany
| |
Collapse
|
6
|
Kinens A, Balkaitis S, Suna E. Preparative-Scale Synthesis of Vedejs Chiral DMAP Catalysts. J Org Chem 2018; 83:12449-12459. [PMID: 30256638 DOI: 10.1021/acs.joc.8b01687] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A scalable synthesis of chiral Vedejs-type DMAP catalysts is reported. The key step of the synthesis is amination of the enantiomerically pure 4-chloropyridine derivative using well-defined ZnCl2(amine)2 complexes. A series of Zn(II)-amine complexes have been synthesized to explore the scope of the ZnCl2-mediated amination of 4-halopyridines. Mechanistic studies support a Zn(II)-facilitated nucleophilic aromatic substitution as a plausible mechanism for the chlorine-to-amine exchange.
Collapse
Affiliation(s)
- Artis Kinens
- Latvian Institute of Organic Synthesis , Aizkraukles 21 , LV-1006 Riga , Latvia.,Department of Chemistry , University of Latvia , Jelgavas 1 , LV-1004 Riga , Latvia
| | - Simonas Balkaitis
- Latvian Institute of Organic Synthesis , Aizkraukles 21 , LV-1006 Riga , Latvia.,Department of Chemistry , University of Latvia , Jelgavas 1 , LV-1004 Riga , Latvia
| | - Edgars Suna
- Latvian Institute of Organic Synthesis , Aizkraukles 21 , LV-1006 Riga , Latvia.,Department of Chemistry , University of Latvia , Jelgavas 1 , LV-1004 Riga , Latvia
| |
Collapse
|
7
|
Sánchez B, Calderón C, Garrido C, Contreras R, Campodónico PR. Solvent effect on a model SNAr reaction in ionic liquid/water mixtures at different compositions. NEW J CHEM 2018. [DOI: 10.1039/c7nj04820c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A biphasic behavior observed on the reaction rate of a model SNAr reaction in ionic liquid/water mixtures was explained by preferential solvation effects in water rich mixtures, and an anion effect in mixtures with high ionic liquid content.
Collapse
Affiliation(s)
- Bruno Sánchez
- Departamento de Química
- Facultad de Ciencias
- Universidad de Chile
- Santiago
- Chile
| | - Cristian Calderón
- Centro de Química Médica
- Facultad de Medicina
- Clínica Alemana Universidad del Desarrollo
- Santiago 7710162
- Chile
| | - Constanza Garrido
- Departamento de Química
- Facultad de Ciencias
- Universidad de Chile
- Santiago
- Chile
| | - Renato Contreras
- Departamento de Química
- Facultad de Ciencias
- Universidad de Chile
- Santiago
- Chile
| | - Paola R. Campodónico
- Centro de Química Médica
- Facultad de Medicina
- Clínica Alemana Universidad del Desarrollo
- Santiago 7710162
- Chile
| |
Collapse
|
8
|
Qian W, Wang H, Bartberger MD. Accelerating effect of triazolyl and related heteroaryl substituents on SNAr reactions: evidence of hydrogen-bond stabilized transition states. J Am Chem Soc 2015; 137:12261-8. [PMID: 26321078 DOI: 10.1021/jacs.5b06189] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The remarkable accelerating effect of 1,2,3-triazolyl substituents on SNAr reactions has been investigated through systematic experiments and density functional theory calculations. The lone pair electrons of an ortho-triazolo substituent play a key role in lowering the activation energy for nucleophilic addition via formation of a preferential hydrogen bond with the amine nucleophile at the transition state for addition. In an extension of this finding, a series of related heteroaryl groups with similar electron pair donor properties have also been found to facilitate SNAr reactions. The experimentally determined solvent effect provides further support for this rationale, which was utilized to achieve an ortho-selective substitution on a difluoroarene substrate.
Collapse
Affiliation(s)
- Wenyuan Qian
- Department of Medicinal Chemistry and ‡Department of Molecular Structure, Therapeutic Discovery, Amgen Inc. , One Amgen Center Drive, Thousand Oaks, California 91320-1799, United States
| | - Hao Wang
- Department of Medicinal Chemistry and ‡Department of Molecular Structure, Therapeutic Discovery, Amgen Inc. , One Amgen Center Drive, Thousand Oaks, California 91320-1799, United States
| | - Michael D Bartberger
- Department of Medicinal Chemistry and ‡Department of Molecular Structure, Therapeutic Discovery, Amgen Inc. , One Amgen Center Drive, Thousand Oaks, California 91320-1799, United States
| |
Collapse
|
9
|
Dudutienė V, Zubrienė A, Smirnov A, Timm DD, Smirnovienė J, Kazokaitė J, Michailovienė V, Zakšauskas A, Manakova E, Gražulis S, Matulis D. Functionalization of fluorinated benzenesulfonamides and their inhibitory properties toward carbonic anhydrases. ChemMedChem 2015; 10:662-87. [PMID: 25758852 DOI: 10.1002/cmdc.201402490] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 02/03/2015] [Indexed: 01/23/2023]
Abstract
Substituted tri- and tetrafluorobenzenesulfonamides were designed, synthesized, and evaluated as high-affinity and isoform-selective carbonic anhydrase (CA) inhibitors. Their binding affinities for recombinant human CA I, II, VA, VI, VII, XII, and XIII catalytic domains were determined by fluorescent thermal shift assay, isothermal titration calorimetry, and a stopped-flow CO2 hydration assay. Variation of the substituents at the 2-, 3-, and 4-positions yielded compounds with a broad range of binding affinities and isoform selectivities. Several 2,4-substituted-3,5,6-trifluorobenzenesulfonamides were effective CA XIII inhibitors with high selectivity over off-target CA I and CA II. 3,4-Disubstituted-2,5,6-trifluorobenzenesulfonamides bound CAs with higher affinity than 2,4-disubstituted-3,5,6-trifluorobenzenesulfonamides. Many such fluorinated benzenesulfonamides were found to be nanomolar inhibitors of CA II, CA VII, tumor-associated CA IX and CA XII, and CA XIII. X-ray crystal structures of inhibitors bound in the active sites of several CA isoforms provide structure-activity relationship information for inhibitor binding affinities and selectivity.
Collapse
Affiliation(s)
- Virginija Dudutienė
- Department of Biothermodynamics and Drug Design, Institute of Biotechnology, Vilnius University, Graičiūno 8, Vilnius 02241 (Lithuania)
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Basarab GS, Galullo V, DeGrace N, Hauck S, Joubran C, Wesolowski SS. Synthesis of a Tetrahydronaphthyridine Spiropyrimidinetrione DNA Gyrase Inhibiting Antibacterial Agent - Differential Substitution at all Five Carbon Atoms of Pyridine. Org Lett 2014; 16:6456-9. [DOI: 10.1021/ol503256h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Gregory S. Basarab
- Infection Innovative Medicines, AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States
| | - Vincent Galullo
- Infection Innovative Medicines, AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States
| | - Nancy DeGrace
- Infection Innovative Medicines, AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States
| | - Sheila Hauck
- Infection Innovative Medicines, AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States
| | - Camil Joubran
- Infection Innovative Medicines, AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States
| | - Steven S. Wesolowski
- Infection Innovative Medicines, AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States
| |
Collapse
|
11
|
McDonnell ME, Bian H, Wrobel J, Smith GR, Liang S, Ma H, Reitz AB. Anilino-monoindolylmaleimides as potent and selective JAK3 inhibitors. Bioorg Med Chem Lett 2014; 24:1116-21. [DOI: 10.1016/j.bmcl.2014.01.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 12/30/2013] [Accepted: 01/02/2014] [Indexed: 11/16/2022]
|
12
|
Gallardo-Fuentes S, Tapia RA, Contreras R, Campodónico PR. Site activation effects promoted by intramolecular hydrogen bond interactions in SNAr reactions. RSC Adv 2014. [DOI: 10.1039/c4ra04725g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The nucleophilic aromatic substitution reaction of benzohydrazide derivatives towards 2-chloro-5-nitropyrimidine is used as model system to experimentally and theoretically show that intramolecular hydrogen-bond formation operates as a perturbation that elicits a dual response at the reaction center of the transition state (TS) structure.
Collapse
Affiliation(s)
| | - Ricardo A. Tapia
- Facultad de Química
- Pontificia Universidad Católica de Chile
- Santiago 6094411, Chile
| | - Renato Contreras
- Departamento de Química
- Facultad de Ciencias
- Universidad de Chile
- Santiago, Chile
| | - Paola R. Campodónico
- Centro de Química Médica
- Facultad de Medicina
- Clínica Alemana Universidad del Desarrollo
- Santiago, Chile
| |
Collapse
|
13
|
Shinozuka T, Saito K, Naito S. An Efficient Method for the Preparation of 4-Alkoxy-substituted Thieno[2,3-b]pyridines. HETEROCYCLES 2014. [DOI: 10.3987/com-14-12986] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
14
|
Dunkel P, Tran C, Gallavardin T, Dhimane H, Ogden D, Dalko PI. Quinoline-derived two-photon sensitive quadrupolar probes. Org Biomol Chem 2014; 12:9899-908. [DOI: 10.1039/c4ob01551g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Quadrupolar 8-dimethylaminoquinoline-derived photosensitive probes underwent photolysis under UV (365 nm) and NIR (730 nm two-photon (TP)) irradiation conditions.
Collapse
Affiliation(s)
- Petra Dunkel
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques
- CNRS UMR 8601
- Université Paris Descartes
- 75270 Paris, France
| | - Christine Tran
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques
- CNRS UMR 8601
- Université Paris Descartes
- 75270 Paris, France
| | - Thibault Gallavardin
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques
- CNRS UMR 8601
- Université Paris Descartes
- 75270 Paris, France
| | - Hamid Dhimane
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques
- CNRS UMR 8601
- Université Paris Descartes
- 75270 Paris, France
| | - David Ogden
- Laboratoire de Physiologie Cérébrale
- CNRS UMR 8118
- Université Paris Descartes
- 75270 Paris Cedex 06, France
| | - Peter I. Dalko
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques
- CNRS UMR 8601
- Université Paris Descartes
- 75270 Paris, France
| |
Collapse
|
15
|
An alternative synthesis of pyrimido[4,5-b]quinoline-4-ones via metal-free amination in water and Vilsmeier–Haack cyclization. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.10.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
16
|
Chéron N, El Kaïm L, Grimaud L, Fleurat-Lessard P. Evidences for the Key Role of Hydrogen Bonds in Nucleophilic Aromatic Substitution Reactions. Chemistry 2011; 17:14929-34. [DOI: 10.1002/chem.201102463] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Indexed: 11/05/2022]
|
17
|
Morgentin R, Barlaam B, Foote K, Hassall L, Hawkins J, Jones CD, Le Griffon A, Peru A, Plé P. Two-Directional Approach for the Rapid Synthesis of 2,4-Bis-Aminoaryl Pyridine Derivatives. SYNTHETIC COMMUN 2011. [DOI: 10.1080/00397911.2010.520403] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
| | | | - Kevin Foote
- b AstraZeneca Pharmaceuticals , Macclesfield , Cheshire , United Kingdom
| | - Lorraine Hassall
- b AstraZeneca Pharmaceuticals , Macclesfield , Cheshire , United Kingdom
| | - Janet Hawkins
- b AstraZeneca Pharmaceuticals , Macclesfield , Cheshire , United Kingdom
| | - Clifford D. Jones
- b AstraZeneca Pharmaceuticals , Macclesfield , Cheshire , United Kingdom
| | | | - Aurelien Peru
- a AstraZeneca, Centre de Recherches , Reims , France
| | - Patrick Plé
- a AstraZeneca, Centre de Recherches , Reims , France
| |
Collapse
|
18
|
Khoje AD, Gundersen LL. Reactivity and regioselectivity in Stille couplings of 3-substituted 2,4-dichloropyridines. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2010.11.108] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
19
|
Wendt MD, Kunzer AR. Ortho-selectivity in SNAr substitutions of 2,4-dihaloaromatic compounds. Reactions with anionic nucleophiles. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.03.124] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|