1
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Strauss MJ, Liu KX, Greaves ME, Dahl JC, Kim ST, Wu YJ, Schmidt MA, Scola PM, Buchwald SL. Cu-Catalyzed Amination of Base-Sensitive Aryl Bromides and the Chemoselective N- and O-Arylation of Amino Alcohols. J Am Chem Soc 2024; 146:18616-18625. [PMID: 38924516 DOI: 10.1021/jacs.4c05246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
We report a general and functional-group-tolerant method for the Cu-catalyzed amination of base-sensitive aryl bromides including substrates possessing acidic functional groups and small five-membered heteroarenes. The results presented herein substantially expand the scope of Cu-catalyzed C-N coupling reactions. The combination of L8, an anionic N1,N2-diarylbenzene-1,2-diamine ligand, along with the mild base NaOTMS leads to the formation of a stable yet reactive catalyst that resists deactivation from coordination to heterocycles or charged intermediates. This system enables the use of low catalyst and ligand loadings. Exploiting the differences in nucleophile deprotonation in C-O and C-N coupling reactions catalyzed by Cu·L8 we developed a method to chemoselectively N- and O-arylate a variety of amino alcohol substrates. Employing NaOt-Bu as the base resulted exclusively in C-O coupling when the amino alcohols featured primary alcohols and more hindered amines or aniline groups. Utilizing NaOTMS enabled the ability to override the steric-based selectivity of these reactions completely and exclusively promoted C-N coupling regardless of the structure of the amino alcohol. The ability to invert the observed chemoselectivity is distinct from previously described methods that require protecting group manipulations or rely entirely on steric effects to control reactivity. These results substantially improve the scope of Cu-catalyzed C-N coupling reactions using N1,N2-diarylbenzene-1,2-diamine ligands and introduce a new chemoselective method to arylate amino alcohols.
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Affiliation(s)
- Michael J Strauss
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States
| | - Kaylee X Liu
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States
- Department of Chemistry, Wellesley College, 106 Central St., Wellesley, Massachusetts 02481, United States
| | - Megan E Greaves
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States
| | - Jakob C Dahl
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States
| | - Seoung-Tae Kim
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States
| | - Yong-Jin Wu
- Department of Discovery Chemistry, Bristol Myers Squibb, 250 Water St., Cambridge, Massachusetts 02141, United States
| | - Michael A Schmidt
- Chemical Process Development, Bristol Myers Squibb, 1 Squibb Dr. New Brunswick, New Jersey 08901, United States
| | - Paul M Scola
- Department of Discovery Chemistry, Bristol Myers Squibb, 250 Water St., Cambridge, Massachusetts 02141, United States
| | - Stephen L Buchwald
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States
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2
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Fleuti M, Sanchez-Quirante T, Poštová Slavětínská L, Tloušt'ová E, Tichý M, Gurská S, Džubák P, Hajdúch M, Hocek M. Synthesis and Biological Profiling of Quinolino-Fused 7-Deazapurine Nucleosides. ACS OMEGA 2024; 9:20557-20570. [PMID: 38737052 PMCID: PMC11080019 DOI: 10.1021/acsomega.4c02031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/15/2024] [Accepted: 04/19/2024] [Indexed: 05/14/2024]
Abstract
A series of quinolino-fused 7-deazapurine (pyrimido[5',4':4,5]pyrrolo[3,2-f]quinoline) ribonucleosides were designed and synthesized. The synthesis of the key 11-chloro-pyrimido[5',4':4,5]pyrrolo[3,2-f]quinoline was based on the Negishi cross-coupling of iodoquinoline with zincated 4,6-dichloropyrimidine followed by azidation and thermal or photochemical cyclization. Vorbrüggen glycosylation of the tetracyclic heterocycle followed by cross-coupling or substitution reactions at position 11 gave the desired set of final nucleosides that showed moderate to weak cytostatic activity and fluorescent properties. The corresponding fused adenosine derivative was converted to the triphosphate and successfully incorporated to RNA using in vitro transcription with T7 RNA polymerase.
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Affiliation(s)
- Marianne Fleuti
- Department
of Organic Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, Prague 2 CZ-12843, Czech Republic
- Institute
of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, Prague 6 CZ-16610, Czech Republic
| | - Tania Sanchez-Quirante
- Department
of Organic Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, Prague 2 CZ-12843, Czech Republic
- Institute
of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, Prague 6 CZ-16610, Czech Republic
| | - Lenka Poštová Slavětínská
- Institute
of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, Prague 6 CZ-16610, Czech Republic
| | - Eva Tloušt'ová
- Institute
of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, Prague 6 CZ-16610, Czech Republic
| | - Michal Tichý
- Institute
of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, Prague 6 CZ-16610, Czech Republic
| | - Soňa Gurská
- Institute
of Molecular and Translational Medicine, Palacky University and University
Hospital in Olomouc, Faculty of Medicine and Dentistry, Hněvotínská
5, Olomouc CZ-77515, Czech Republic
| | - Petr Džubák
- Institute
of Molecular and Translational Medicine, Palacky University and University
Hospital in Olomouc, Faculty of Medicine and Dentistry, Hněvotínská
5, Olomouc CZ-77515, Czech Republic
| | - Marián Hajdúch
- Institute
of Molecular and Translational Medicine, Palacky University and University
Hospital in Olomouc, Faculty of Medicine and Dentistry, Hněvotínská
5, Olomouc CZ-77515, Czech Republic
| | - Michal Hocek
- Department
of Organic Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, Prague 2 CZ-12843, Czech Republic
- Institute
of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, Prague 6 CZ-16610, Czech Republic
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3
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Hamze C, Brossier J, Karaghiosoff K, Godineau E, Knochel P. Selective and Stepwise Functionalization of the Pyridazine Scaffold by Using Thio-Substituted Pyridazine Building Blocks. Chemistry 2023; 29:e202302156. [PMID: 37534401 DOI: 10.1002/chem.202302156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 07/31/2023] [Accepted: 08/03/2023] [Indexed: 08/04/2023]
Abstract
We described a regioselective tri- and tetra-functionalization of the pyridazine scaffold using two readily available building blocks: 3-alkylthio-6-chloropyridazine and 3,4-bis(methylthio)-6-chloropyridazine by performing selective metalations with TMPMgCl ⋅ LiCl and catalyst-tuned cross-coupling reactions with arylzinc halides. Several of the resulting pyridazines were converted into more elaborated N-heterocycles such as thieno[2,3-c]pyridazines and 1H-pyrazolo[3,4-c]pyridazines.
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Affiliation(s)
- Clémence Hamze
- Department of Chemistry, Ludwig-Maximilians University, Butenandtstraße 5-13, Haus F, 81377, Munich, Germany
| | - Julie Brossier
- Department of Chemistry, Ludwig-Maximilians University, Butenandtstraße 5-13, Haus F, 81377, Munich, Germany
| | - Konstantin Karaghiosoff
- Department of Chemistry, Ludwig-Maximilians University, Butenandtstraße 5-13, Haus F, 81377, Munich, Germany
| | - Edouard Godineau
- Research & Development, Syngenta Crop Protection AG, Schaffhauserstrasse 101, 4332, Stein, Switzerland
| | - Paul Knochel
- Department of Chemistry, Ludwig-Maximilians University, Butenandtstraße 5-13, Haus F, 81377, Munich, Germany
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4
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Meirelles MA, de Toledo I, Thurow S, Barreiro G, Couñago RM, Pilli RA. Functionalization of 2,4-Dichloropyrimidines by 2,2,6,6-Tetramethylpiperidyl Zinc Base Enables Modular Synthesis of Antimalarial Diaminopyrimidine P218 and Analogues. J Org Chem 2023; 88:9475-9487. [PMID: 37290116 DOI: 10.1021/acs.joc.3c00500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Two routes to the antimalarial diaminopyrimidine P218 were developed based on the C-6 metalation of suitable 2,4-dichloro-5-alkoxy pyrimidines using (TMP)2Zn·2MgCl2·2LiCl base. One approach involves a late-stage modification of the C-6 position, while the other allows for tail fragment modification of P218. Both routes have proven reliable in synthesizing P218, as well as eight analogues. These innovative strategies have the potential to contribute to the search for new antimalarial drugs.
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Affiliation(s)
- Matheus A Meirelles
- Department of Organic Chemistry, Institute of Chemistry, University of Campinas, UNICAMP, 13083-970-Campinas, SP, Brazil
| | - Ian de Toledo
- Department of Organic Chemistry, Institute of Chemistry, University of Campinas, UNICAMP, 13083-970-Campinas, SP, Brazil
| | - Samuel Thurow
- Department of Organic Chemistry, Institute of Chemistry, University of Campinas, UNICAMP, 13083-970-Campinas, SP, Brazil
- Eurofarma Laboratórios S/A, 06696-000-Itapevi, SP, Brazil
| | | | - Rafael M Couñago
- Center of Medicinal Chemistry (CQMED), University of Campinas, UNICAMP, 13083-886-Campinas, SP, Brazil
| | - Ronaldo A Pilli
- Department of Organic Chemistry, Institute of Chemistry, University of Campinas, UNICAMP, 13083-970-Campinas, SP, Brazil
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5
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Kremsmair A, Sunagatullina AS, Bole LJ, Mastropierro P, Graßl S, Wilke HR, Godineau E, Hevia E, Knochel P. Exploiting Coordination Effects for the Regioselective Zincation of Diazines Using TMPZnX⋅LiX (X=Cl, Br). Angew Chem Int Ed Engl 2022; 61:e202210491. [PMID: 35943036 PMCID: PMC9826189 DOI: 10.1002/anie.202210491] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Indexed: 01/11/2023]
Abstract
A new method for regioselective zincations of challenging N-heterocyclic substrates such as pyrimidines and pyridazine was reported using bimetallic bases TMPZnX⋅LiX (TMP=2,2,6,6-tetramethylpiperidyl; X=Cl, Br). Reactions occurred under mild conditions (25-70 °C, using 1.75 equivalents of base without additives), furnishing 2-zincated pyrimidines and 3-zincated pyridazine, which were then trapped with a variety of electrophiles. Contrasting with other s-block metalating systems, which lack selectivity in their reactions even when operating at low temperatures, these mixed Li/Zn bases enabled unprecedented regioselectivities that cannot be replicated by either LiTMP nor Zn(TMP)2 on their own. Spectroscopic and structural interrogations of organometallic intermediates involved in these reactions have shed light on the complex constitution of reaction mixtures and the origins of their special reactivities.
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Affiliation(s)
- Alexander Kremsmair
- Department Chemie & BiochemieLudwig Maximilians-Universität MünchenButenandtstrasse 5–13, Haus F81377MünchenGermany
| | - Alisa S. Sunagatullina
- Department Chemie & BiochemieLudwig Maximilians-Universität MünchenButenandtstrasse 5–13, Haus F81377MünchenGermany
| | - Leonie J. Bole
- Department für Chemie und BiochemieUniversität BernFreiestrasse 33012BernSwitzerland
| | - Pasquale Mastropierro
- Department für Chemie und BiochemieUniversität BernFreiestrasse 33012BernSwitzerland
| | - Simon Graßl
- Department Chemie & BiochemieLudwig Maximilians-Universität MünchenButenandtstrasse 5–13, Haus F81377MünchenGermany
| | - Henrik R. Wilke
- Department Chemie & BiochemieLudwig Maximilians-Universität MünchenButenandtstrasse 5–13, Haus F81377MünchenGermany
| | - Edouard Godineau
- Forschung & Entwicklung SteinSyngenta Crop Protection AGSchaffhauserstrasse 1014332SteinSwitzerland
| | - Eva Hevia
- Department für Chemie und BiochemieUniversität BernFreiestrasse 33012BernSwitzerland
| | - Paul Knochel
- Department Chemie & BiochemieLudwig Maximilians-Universität MünchenButenandtstrasse 5–13, Haus F81377MünchenGermany
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6
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Kremsmair A, Sunagatullina AS, Bole LJ, Mastropierro P, Graßl S, Wilke HR, Godineau E, Hevia E, Knochel P. Exploiting Coordination Effects for the Regioselective Zincation of Diazines Using TMPZnX·LiX (X = Cl, Br). Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | | | - Leonie J. Bole
- Universität Bern: Universitat Bern Department für Chemie und Biochemie SWITZERLAND
| | | | - Simon Graßl
- Ludwig-Maximilians-Universitat Munchen Department of Chemistry GERMANY
| | - Henrik R. Wilke
- Ludwig-Maximilians-Universitat Munchen Department of Chemistry GERMANY
| | - Edouard Godineau
- Syngenta Crop Protection AG Forschung & Entwicklung Stein SWITZERLAND
| | - Eva Hevia
- Universität Bern: Universitat Bern Chemie und Biochemie SWITZERLAND
| | - Paul Knochel
- Ludwig-Maximilians-Universitat Munchen Department of Chemistry Butenandtstr. 5-13 81377 München GERMANY
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7
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Hess A, Alandini N, Guelen HC, Prohaska JP, Knochel P. Regioselective magnesiations of functionalized arenes and heteroarenes using TMP 2Mg in hydrocarbons. Chem Commun (Camb) 2022; 58:8774-8777. [PMID: 35848786 DOI: 10.1039/d2cc03856k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the preparation of a new hydrocarbon-soluble magnesium amide TMP2Mg (TMP = 2,2,6,6-tetramethylpiperidyl). This base showed excellent properties for the regioselective magnesiation of various arenes and heteroarenes bearing ethyl esters and carbamates under very mild reaction conditions. Subsequent trapping with aryl iodides (Negishi cross-coupling) gave access to a range of highly functionalized valuable building blocks.
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Affiliation(s)
- Andreas Hess
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany.
| | - Nurtalya Alandini
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany.
| | - Hasret C Guelen
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany.
| | - Jan P Prohaska
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany.
| | - Paul Knochel
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany.
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8
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Fatahala SS, Mohamed MS, Sabry JY, Mansour YEED. Synthesis Strategies and Medicinal Value of Pyrrole and its Fused Heterocyclic Compounds. Med Chem 2022; 18:1013-1043. [PMID: 35339189 DOI: 10.2174/1573406418666220325141952] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/17/2021] [Accepted: 01/06/2022] [Indexed: 11/22/2022]
Abstract
For several decades, interest in pyrrole and pyrrolopyrimidine derivatives increases owing to their biological importance, such as anti-tumor, anti-microbial, anti-inflammatory, anti-diabetic, anti-histaminic, anti-malarial, anti-Parkinson, antioxidant and anti-viral, specially recently against COVID-19. These tremendous biological features motivated scientists to discover more pyrrole and fused pyrrole derivatives, owing to the great importance of the pyrrole nucleus as a pharmacophore in many drugs, and motivated us to present this article, highlighting on the different synthetic pathways of pyrrole and its fused compounds specially pyrrolopyrimidine, as well as their medicinal value from 2017 till 2021.
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Affiliation(s)
- Samar Said Fatahala
- Pharmaceutical Organic Chemistry department, Faculty of Pharmacy, Helwan University, Ain-Helwan, Cairo, Egypt
| | - Mosaad Sayed Mohamed
- Pharmaceutical Organic Chemistry department, Faculty of Pharmacy, Helwan University, Ain-Helwan, Cairo, Egypt
| | - Jaqueline Youssef Sabry
- Pharmaceutical Organic Chemistry department, Faculty of Pharmacy, Helwan University, Ain-Helwan, Cairo, Egypt
| | - Yara Esam El-Deen Mansour
- Pharmaceutical Organic Chemistry department, Faculty of Pharmacy, Helwan University, Ain-Helwan, Cairo, Egypt
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9
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Ullah A, Liu J, Khan AU, Khan QU, Guo F, Nazir S, Quan Z, Wang X, Alosaimi AM, Hussein MA. Diversification and Design of Novel Aniline‐Pyrimidines via Sonogashira/Suzuki Cross Coupling Reactions Catalyzed by Novel CLPN‐Pd. ChemistrySelect 2021. [DOI: 10.1002/slct.202102934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Arif Ullah
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou Gansu 730070 People's Republic of China
| | - Jingjiang Liu
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou Gansu 730070 People's Republic of China
| | - Afaq Ullah Khan
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 People's Republic of China
| | - Qudrat Ullah Khan
- Greater Bay Area Institute of Precision Medicine (Guangzhou) Fudan University, Nansha District Guangzhou Guangdong 511458 People's Republic of China
| | - Fuhu Guo
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou Gansu 730070 People's Republic of China
| | - Sadia Nazir
- Institute of Chemical Sciences Gomal University D. I. Khan, KP Pakistan
| | - Zhengjun Quan
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou Gansu 730070 People's Republic of China
| | - Xicun Wang
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou Gansu 730070 People's Republic of China
| | - Abeer M. Alosaimi
- Department of Chemistry Faculty of Science Taif University P.O. Box 11099 Taif 21944 Saudi Arabia
| | - Mahmoud A. Hussein
- Chemistry Department Faculty of Science King Abdulaziz University P.O. Box 80203 Jeddah 21589 Saudi Arabia
- Chemistry Department Faculty of Science Assiut University Assiut 71516 Egypt
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10
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Rearrangements of polyaza(oxa-,thia-)heterocyclic carbanions in organic synthesis. Russ Chem Bull 2021. [DOI: 10.1007/s11172-021-3133-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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11
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Pawluczyk JM, Kempson J, Mathur A, Oderinde MS. Route evaluation and development of a practical synthesis of methyl (S)-2-chloro-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine-7-carboxylate. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Hamama WS, Sofan MA, EL-Hawary II, Zoorob HH. Narrative in the chemistry of (aryl/hetaryl)thiopyran-4-one. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1846200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Wafaa S. Hamama
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Mamdouh A. Sofan
- Department of Chemistry, Faculty of Science, Damietta University, Damietta, Egypt
| | - Ibrahim I. EL-Hawary
- Department of Chemistry, Faculty of Science, Damietta University, Damietta, Egypt
| | - Hanafi H. Zoorob
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
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13
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Porous polymeric ligand promoted copper-catalyzed C-N coupling of (hetero)aryl chlorides under visible-light irradiation. Sci China Chem 2020. [DOI: 10.1007/s11426-020-9859-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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14
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Balkenhohl M, Jangra H, Makarov IS, Yang S, Zipse H, Knochel P. A Predictive Model Towards Site-Selective Metalations of Functionalized Heterocycles, Arenes, Olefins, and Alkanes using TMPZnCl⋅LiCl. Angew Chem Int Ed Engl 2020; 59:14992-14999. [PMID: 32400069 PMCID: PMC7497272 DOI: 10.1002/anie.202005372] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Indexed: 01/02/2023]
Abstract
The development of a predictive model towards site-selective deprotometalation reactions using TMPZnCl⋅LiCl is reported (TMP=2,2,6,6-tetramethylpiperidinyl). The pKa values of functionalized N-, S-, and O-heterocycles, arenes, alkenes, or alkanes were calculated and compared to the experimental deprotonation sites. Large overlap (>80 %) between the calculated and empirical deprotonation sites was observed, showing that thermodynamic factors strongly govern the metalation regioselectivity. In the case of olefins, calculated frozen state energies of the deprotonated substrates allowed a more accurate prediction. Additionally, various new N-heterocycles were analyzed and the metalation regioselectivities rationalized using the predictive model.
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Affiliation(s)
- Moritz Balkenhohl
- Department of ChemistryLudwig-Maximilians-Universität MünchenButenandtstr. 5–1381377MunichGermany
| | - Harish Jangra
- Department of ChemistryLudwig-Maximilians-Universität MünchenButenandtstr. 5–1381377MunichGermany
| | - Ilya S. Makarov
- Department of ChemistryLudwig-Maximilians-Universität MünchenButenandtstr. 5–1381377MunichGermany
| | - Shu‐Mei Yang
- Department of ChemistryNational (Taiwan) Normal University88, Sec. 4, Tingchow RoadTaipei11677Taiwan, Republic of China
| | - Hendrik Zipse
- Department of ChemistryLudwig-Maximilians-Universität MünchenButenandtstr. 5–1381377MunichGermany
| | - Paul Knochel
- Department of ChemistryLudwig-Maximilians-Universität MünchenButenandtstr. 5–1381377MunichGermany
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15
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Balkenhohl M, Jangra H, Makarov IS, Yang S, Zipse H, Knochel P. A Predictive Model Towards Site‐Selective Metalations of Functionalized Heterocycles, Arenes, Olefins, and Alkanes using TMPZnCl⋅LiCl. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005372] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Moritz Balkenhohl
- Department of Chemistry Ludwig-Maximilians-Universität München Butenandtstr. 5–13 81377 Munich Germany
| | - Harish Jangra
- Department of Chemistry Ludwig-Maximilians-Universität München Butenandtstr. 5–13 81377 Munich Germany
| | - Ilya S. Makarov
- Department of Chemistry Ludwig-Maximilians-Universität München Butenandtstr. 5–13 81377 Munich Germany
| | - Shu‐Mei Yang
- Department of Chemistry National (Taiwan) Normal University 88, Sec. 4, Tingchow Road Taipei 11677 Taiwan, Republic of China
| | - Hendrik Zipse
- Department of Chemistry Ludwig-Maximilians-Universität München Butenandtstr. 5–13 81377 Munich Germany
| | - Paul Knochel
- Department of Chemistry Ludwig-Maximilians-Universität München Butenandtstr. 5–13 81377 Munich Germany
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16
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Fleuti M, Bártová K, Slavětínská LP, Tloušt'ová E, Tichý M, Gurská S, Pavliš P, Džubák P, Hajdúch M, Hocek M. Synthesis and Biological Profiling of Pyrazolo-Fused 7-Deazapurine Nucleosides. J Org Chem 2020; 85:10539-10551. [PMID: 32692916 DOI: 10.1021/acs.joc.0c00928] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of 8-substituted 1-methyl-1,4-dihydropyrazolo[3',4':4,5]pyrrolo[2,3-d]pyrimidine (methylpyrazolo-fused 7-deazapurine) ribonucleosides have been designed and synthesized. Two synthetic approaches to the key heterocyclic aglycon 7, (i) a six-step classical heterocyclization starting from 5-chloro-1-methyl-4-nitropyrazole and (ii) a three-step cross-coupling and cyclization approach starting from the zincated 4,6-dichloropyrimidine, gave comparable total yields of 18% vs 13%. The glycosylation of 7 was attempted by three different methods but only the Vorbrüggen silyl-base protocol was efficient and stereoselective to give desired β-anomeric nucleoside intermediate 17A. Its nucleophilic substitutions or cross-coupling reactions at position 8 and deprotection of the sugar moiety gave eight derivatives of pyrazolo-fused deazapurine ribonucleosides, some of which were weakly fluorescent. Methyl, amino, and methylsulfanyl derivatives exerted submicromolar cytotoxic effects in vitro against a panel of cancer and leukemia cell lines as well as antiviral effects against hepatitis C virus in the replicon assay.
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Affiliation(s)
- Marianne Fleuti
- Department of Organic Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, CZ-12843 Prague 2, Czech Republic.,Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, CZ-16610 Prague 6, Czech Republic
| | - Kateřina Bártová
- Department of Organic Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, CZ-12843 Prague 2, Czech Republic.,Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, CZ-16610 Prague 6, Czech Republic
| | - Lenka Poštová Slavětínská
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, CZ-16610 Prague 6, Czech Republic
| | - Eva Tloušt'ová
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, CZ-16610 Prague 6, Czech Republic
| | - Michal Tichý
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, CZ-16610 Prague 6, Czech Republic
| | - Soňa Gurská
- Institute of Molecular and Translational Medicine, Palacky University and University Hospital in Olomouc, Faculty of Medicine and Dentistry, Hněvotínská 5, CZ-77515 Olomouc, Czech Republic
| | - Petr Pavliš
- Institute of Molecular and Translational Medicine, Palacky University and University Hospital in Olomouc, Faculty of Medicine and Dentistry, Hněvotínská 5, CZ-77515 Olomouc, Czech Republic
| | - Petr Džubák
- Institute of Molecular and Translational Medicine, Palacky University and University Hospital in Olomouc, Faculty of Medicine and Dentistry, Hněvotínská 5, CZ-77515 Olomouc, Czech Republic
| | - Marián Hajdúch
- Institute of Molecular and Translational Medicine, Palacky University and University Hospital in Olomouc, Faculty of Medicine and Dentistry, Hněvotínská 5, CZ-77515 Olomouc, Czech Republic
| | - Michal Hocek
- Department of Organic Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, CZ-12843 Prague 2, Czech Republic.,Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, CZ-16610 Prague 6, Czech Republic
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17
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Yang C, Pohl R, Tichý M, Gurská S, Pavliš P, Džubák P, Hajdúch M, Hocek M. Synthesis, Photophysical Properties, and Biological Profiling of Benzothieno-Fused 7-Deazapurine Ribonucleosides. J Org Chem 2020; 85:8085-8101. [PMID: 32432875 DOI: 10.1021/acs.joc.0c00927] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Two isomeric series of benzothieno-fused 7-deazapurine (benzo[4',5']thieno[3',2':4,5]- and benzo[4',5']thieno[2',3':4,5]pyrrolo[2,3-d]pyrimidine) ribonucleosides were designed and synthesized. Key steps of the synthesis included the Negishi coupling of zincated dichloropyrimidine with 2- or 3-iodobenzothiophene followed by azidation, thermal or photochemical cyclization, glycosylation, and final functionalization at position 6 through cross-couplings or nucleophilic substitutions. Deprotection gave the final nucleosides, some of which showed moderate cytotoxic and antiviral activity. Most of the free nucleosides showed moderate to strong fluorescence with emission maxima of 362-554 nm. 2'-Deoxyribonucleoside and its 5'-O-triphosphate were also prepared from benzothieno-fused 7-deazaadenine derivative, and the triphosphate was a good substrate for KOD XL DNA polymerase in primer extension synthesis of modified DNA which exerted a weak fluorescence which was slightly enhanced in double-stranded DNA as compared to single-stranded oligonucleotides.
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Affiliation(s)
- Chao Yang
- Department of Organic Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, CZ-12843 Prague 2, Czech Republic.,Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, CZ-16610 Prague 6, Czech Republic
| | - Radek Pohl
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, CZ-16610 Prague 6, Czech Republic
| | - Michal Tichý
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, CZ-16610 Prague 6, Czech Republic
| | - Soňa Gurská
- Institute of Molecular and Translational Medicine, Palacky University and University Hospital in Olomouc, Faculty of Medicine and Dentistry, Hněvotínská 5, CZ-77515 Olomouc, Czech Republic
| | - Petr Pavliš
- Institute of Molecular and Translational Medicine, Palacky University and University Hospital in Olomouc, Faculty of Medicine and Dentistry, Hněvotínská 5, CZ-77515 Olomouc, Czech Republic
| | - Petr Džubák
- Institute of Molecular and Translational Medicine, Palacky University and University Hospital in Olomouc, Faculty of Medicine and Dentistry, Hněvotínská 5, CZ-77515 Olomouc, Czech Republic
| | - Marián Hajdúch
- Institute of Molecular and Translational Medicine, Palacky University and University Hospital in Olomouc, Faculty of Medicine and Dentistry, Hněvotínská 5, CZ-77515 Olomouc, Czech Republic
| | - Michal Hocek
- Department of Organic Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, CZ-12843 Prague 2, Czech Republic.,Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, CZ-16610 Prague 6, Czech Republic
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18
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Göbel D, Clamor N, Lork E, Nachtsheim BJ. Aerobic C(sp2)–H Hydroxylations of 2-Aryloxazolines: Fast Access to Excited-State Intramolecular Proton Transfer (ESIPT)-Based Luminophores. Org Lett 2019; 21:5373-5377. [DOI: 10.1021/acs.orglett.9b01350] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Dominik Göbel
- Institute for Organic and Analytical Chemistry, University of Bremen, 28359 Bremen, Germany
| | - Nils Clamor
- Institute for Organic and Analytical Chemistry, University of Bremen, 28359 Bremen, Germany
| | - Enno Lork
- Institute for Inorganic and Crystallographic Chemistry, University of Bremen, 28359 Bremen, Germany
| | - Boris J. Nachtsheim
- Institute for Organic and Analytical Chemistry, University of Bremen, 28359 Bremen, Germany
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19
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Lutter FH, Graßl S, Grokenberger L, Hofmayer MS, Chen Y, Knochel P. Cobalt‐Catalyzed Cross‐Couplings and Electrophilic Aminations using Organozinc Pivalates. ChemCatChem 2019. [DOI: 10.1002/cctc.201900070] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Ferdinand H. Lutter
- Ludwig-Maximilians-UniversitätDepartment Chemie und Biochemie Butenandtstr. 5–13 81377 München
| | - Simon Graßl
- Ludwig-Maximilians-UniversitätDepartment Chemie und Biochemie Butenandtstr. 5–13 81377 München
| | - Lucie Grokenberger
- Ludwig-Maximilians-UniversitätDepartment Chemie und Biochemie Butenandtstr. 5–13 81377 München
| | - Maximilian S. Hofmayer
- Ludwig-Maximilians-UniversitätDepartment Chemie und Biochemie Butenandtstr. 5–13 81377 München
| | - Yi‐Hung Chen
- The Institute for Advanced StudiesWuhan University Wuhan 430072 P. R. of China
| | - Paul Knochel
- Ludwig-Maximilians-UniversitätDepartment Chemie und Biochemie Butenandtstr. 5–13 81377 München
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20
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Recent applications of magnesium- and Zinc-TMP amides in the synthesis of bioactive targets. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.12.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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21
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Gandeepan P, Müller T, Zell D, Cera G, Warratz S, Ackermann L. 3d Transition Metals for C-H Activation. Chem Rev 2018; 119:2192-2452. [PMID: 30480438 DOI: 10.1021/acs.chemrev.8b00507] [Citation(s) in RCA: 1424] [Impact Index Per Article: 237.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
C-H activation has surfaced as an increasingly powerful tool for molecular sciences, with notable applications to material sciences, crop protection, drug discovery, and pharmaceutical industries, among others. Despite major advances, the vast majority of these C-H functionalizations required precious 4d or 5d transition metal catalysts. Given the cost-effective and sustainable nature of earth-abundant first row transition metals, the development of less toxic, inexpensive 3d metal catalysts for C-H activation has gained considerable recent momentum as a significantly more environmentally-benign and economically-attractive alternative. Herein, we provide a comprehensive overview on first row transition metal catalysts for C-H activation until summer 2018.
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Affiliation(s)
- Parthasarathy Gandeepan
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Thomas Müller
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Daniel Zell
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Gianpiero Cera
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Svenja Warratz
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
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22
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Tokarenko A, Lišková B, Smoleń S, Táborská N, Tichý M, Gurská S, Perlíková P, Frydrych I, Tloušt'ová E, Znojek P, Mertlíková-Kaiserová H, Poštová Slavětínská L, Pohl R, Klepetářová B, Khalid NUA, Wenren Y, Laposa RR, Džubák P, Hajdúch M, Hocek M. Synthesis and Cytotoxic and Antiviral Profiling of Pyrrolo- and Furo-Fused 7-Deazapurine Ribonucleosides. J Med Chem 2018; 61:9347-9359. [PMID: 30281308 DOI: 10.1021/acs.jmedchem.8b01258] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Three series of isomeric pyrrolo- and furo-fused 7-deazapurine ribonucleosides were synthesized and screened for cytostatic and antiviral activity. The synthesis was based on heterocyclizations of hetaryl-azidopyrimidines to form the tricyclic heterocyclic bases, followed by glycosylation and final derivatizations through cross-coupling reactions or nucleophilic substitutions. The pyrrolo[2',3':4,5]pyrrolo[2,3- d]pyrimidine and furo[2',3':4,5]pyrrolo[2,3- d]pyrimidine ribonucleosides were found to be potent cytostatics, whereas the isomeric pyrrolo[3',2',4,5]pyrrolo[2,3- d]pyrimidine nucleosides were inactive. The most active were the methyl, methoxy, and methylsulfanyl derivatives exerting submicromolar cytostatic effects and good selectivity toward cancer cells. We have shown that the nucleosides are activated by intracellular phosphorylation and the nucleotides get incorporated to both RNA and DNA, where they cause DNA damage. They represent a new type of promising candidates for preclinical development toward antitumor agents.
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Affiliation(s)
- Anna Tokarenko
- Institute of Organic Chemistry and Biochemistry , Czech Academy of Sciences , Flemingovo nam. 2 , CZ-16610 Prague 6 , Czech Republic.,Department of Organic Chemistry, Faculty of Science , Charles University in Prague , Hlavova 8 , CZ-12843 Prague 2 , Czech Republic
| | - Barbora Lišková
- Faculty of Medicine and Dentistry, Institute of Molecular and Translational Medicine , Palacky University and University Hospital in Olomouc , Hněvotínská 5 , CZ-775 15 Olomouc , Czech Republic
| | - Sabina Smoleń
- Institute of Organic Chemistry and Biochemistry , Czech Academy of Sciences , Flemingovo nam. 2 , CZ-16610 Prague 6 , Czech Republic
| | - Natálie Táborská
- Faculty of Medicine and Dentistry, Institute of Molecular and Translational Medicine , Palacky University and University Hospital in Olomouc , Hněvotínská 5 , CZ-775 15 Olomouc , Czech Republic
| | - Michal Tichý
- Institute of Organic Chemistry and Biochemistry , Czech Academy of Sciences , Flemingovo nam. 2 , CZ-16610 Prague 6 , Czech Republic
| | - Soňa Gurská
- Faculty of Medicine and Dentistry, Institute of Molecular and Translational Medicine , Palacky University and University Hospital in Olomouc , Hněvotínská 5 , CZ-775 15 Olomouc , Czech Republic
| | - Pavla Perlíková
- Institute of Organic Chemistry and Biochemistry , Czech Academy of Sciences , Flemingovo nam. 2 , CZ-16610 Prague 6 , Czech Republic
| | - Ivo Frydrych
- Faculty of Medicine and Dentistry, Institute of Molecular and Translational Medicine , Palacky University and University Hospital in Olomouc , Hněvotínská 5 , CZ-775 15 Olomouc , Czech Republic
| | - Eva Tloušt'ová
- Institute of Organic Chemistry and Biochemistry , Czech Academy of Sciences , Flemingovo nam. 2 , CZ-16610 Prague 6 , Czech Republic
| | - Pawel Znojek
- Faculty of Medicine and Dentistry, Institute of Molecular and Translational Medicine , Palacky University and University Hospital in Olomouc , Hněvotínská 5 , CZ-775 15 Olomouc , Czech Republic
| | - Helena Mertlíková-Kaiserová
- Institute of Organic Chemistry and Biochemistry , Czech Academy of Sciences , Flemingovo nam. 2 , CZ-16610 Prague 6 , Czech Republic
| | - Lenka Poštová Slavětínská
- Institute of Organic Chemistry and Biochemistry , Czech Academy of Sciences , Flemingovo nam. 2 , CZ-16610 Prague 6 , Czech Republic
| | - Radek Pohl
- Institute of Organic Chemistry and Biochemistry , Czech Academy of Sciences , Flemingovo nam. 2 , CZ-16610 Prague 6 , Czech Republic
| | - Blanka Klepetářová
- Institute of Organic Chemistry and Biochemistry , Czech Academy of Sciences , Flemingovo nam. 2 , CZ-16610 Prague 6 , Czech Republic
| | - Noor-Ul-Ain Khalid
- Department of Pharmacology and Toxicology , University of Toronto , 1 King's College Circle, Room 4213 , Toronto , Ontario M5S 1A8 , Canada
| | - Yiqian Wenren
- Department of Pharmacology and Toxicology , University of Toronto , 1 King's College Circle, Room 4213 , Toronto , Ontario M5S 1A8 , Canada
| | - Rebecca R Laposa
- Department of Pharmacology and Toxicology , University of Toronto , 1 King's College Circle, Room 4213 , Toronto , Ontario M5S 1A8 , Canada
| | - Petr Džubák
- Faculty of Medicine and Dentistry, Institute of Molecular and Translational Medicine , Palacky University and University Hospital in Olomouc , Hněvotínská 5 , CZ-775 15 Olomouc , Czech Republic.,Cancer Research Czech Republic , Hněvotínská 5 , CZ-775 15 Olomouc , Czech Republic
| | - Marián Hajdúch
- Faculty of Medicine and Dentistry, Institute of Molecular and Translational Medicine , Palacky University and University Hospital in Olomouc , Hněvotínská 5 , CZ-775 15 Olomouc , Czech Republic.,Cancer Research Czech Republic , Hněvotínská 5 , CZ-775 15 Olomouc , Czech Republic
| | - Michal Hocek
- Institute of Organic Chemistry and Biochemistry , Czech Academy of Sciences , Flemingovo nam. 2 , CZ-16610 Prague 6 , Czech Republic.,Department of Organic Chemistry, Faculty of Science , Charles University in Prague , Hlavova 8 , CZ-12843 Prague 2 , Czech Republic
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23
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Devendar P, Qu RY, Kang WM, He B, Yang GF. Palladium-Catalyzed Cross-Coupling Reactions: A Powerful Tool for the Synthesis of Agrochemicals. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:8914-8934. [PMID: 30060657 DOI: 10.1021/acs.jafc.8b03792] [Citation(s) in RCA: 190] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Pd-catalyzed cross-coupling reactions have become essential tools for the construction of carbon-carbon and carbon-heteroatom bonds. Over the last three decades, great efforts have been made with cross-coupling chemistry in the discovery, development, and commercialization of innovative new pharmaceuticals and agrochemicals (mainly herbicides, fungicides, and insecticides). In view of the growing interest in both modern crop protection and cross-coupling chemistry, this review gives a comprehensive overview of the successful applications of various Pd-catalyzed cross-coupling methodologies, which have been implemented as key steps in the synthesis of agrochemicals (on R&D and pilot-plant scales) such as the Heck, Suzuki, Sonogashira, Stille, and Negishi reactions, as well as decarboxylative, carbonylative, α-arylative, and carbon-nitrogen bond bond-forming cross-coupling reactions. Some perspectives and challenges for these catalytic coupling processes in the discovery of agrochemicals are briefly discussed in the final section. The examples chosen demonstrate that cross-coupling chemistry approaches open-up new, low-cost, and more efficient industrial routes to existing agrochemicals, and such methods also have the capability to lead the new generation of pesticides with novel modes of action for sustainable crop protection.
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Affiliation(s)
- Ponnam Devendar
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry , Central China Normal University (CCNU) , Wuhan 430079 , P. R. China
- International Joint Research Center for Intelligent Biosensor Technology and Health , Central China Normal University (CCNU) , Wuhan 430079 , P. R. China
| | - Ren-Yu Qu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry , Central China Normal University (CCNU) , Wuhan 430079 , P. R. China
- International Joint Research Center for Intelligent Biosensor Technology and Health , Central China Normal University (CCNU) , Wuhan 430079 , P. R. China
| | - Wei-Ming Kang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry , Central China Normal University (CCNU) , Wuhan 430079 , P. R. China
- International Joint Research Center for Intelligent Biosensor Technology and Health , Central China Normal University (CCNU) , Wuhan 430079 , P. R. China
| | - Bo He
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry , Central China Normal University (CCNU) , Wuhan 430079 , P. R. China
- International Joint Research Center for Intelligent Biosensor Technology and Health , Central China Normal University (CCNU) , Wuhan 430079 , P. R. China
| | - Guang-Fu Yang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry , Central China Normal University (CCNU) , Wuhan 430079 , P. R. China
- International Joint Research Center for Intelligent Biosensor Technology and Health , Central China Normal University (CCNU) , Wuhan 430079 , P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300071 , P. R. China
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24
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Tichý M, Smoleń S, Deingruber T, Džubák P, Pohl R, Slavětínská LP, Hajdúch M, Hocek M. Thienopyrrolo[2, 3- d
]pyrimidines, New Tricyclic Nucleobase Analogues: Synthesis and Biological Activities. ChemistrySelect 2018. [DOI: 10.1002/slct.201802190] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Michal Tichý
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences, Flemingovo nam. 2; CZ-16610 Prague 6 Czech Republic
| | - Sabina Smoleń
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences, Flemingovo nam. 2; CZ-16610 Prague 6 Czech Republic
| | - Tomáš Deingruber
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences, Flemingovo nam. 2; CZ-16610 Prague 6 Czech Republic
| | - Petr Džubák
- Institute of Molecular and Translational Medicine; Faculty of Medicine and Dentistry; Palacky University and University Hospital in Olomouc, Hněvotínská 5; CZ-775 15 Olomouc Czech Republic
| | - Radek Pohl
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences, Flemingovo nam. 2; CZ-16610 Prague 6 Czech Republic
| | - Lenka Poštová Slavětínská
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences, Flemingovo nam. 2; CZ-16610 Prague 6 Czech Republic
| | - Marián Hajdúch
- Institute of Molecular and Translational Medicine; Faculty of Medicine and Dentistry; Palacky University and University Hospital in Olomouc, Hněvotínská 5; CZ-775 15 Olomouc Czech Republic
| | - Michal Hocek
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences, Flemingovo nam. 2; CZ-16610 Prague 6 Czech Republic
- Department of Organic Chemistry; Faculty of Science; Charles University in Prague, Hlavova 8; CZ-12843 Prague 2 Czech Republic
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25
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Ziegler DS, Greiner R, Lumpe H, Kqiku L, Karaghiosoff K, Knochel P. Directed Zincation or Magnesiation of the 2-Pyridone and 2,7-Naphthyridone Scaffold Using TMP Bases. Org Lett 2018; 19:5760-5763. [PMID: 29039957 DOI: 10.1021/acs.orglett.7b02690] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A regioselective zincation of the 2-pyridone and 2,7-naphthyridone scaffolds has been developed. Zincations of the methoxyethoxymethyl (MEM)-protected compounds using TMP2Zn·2MgCl2·2LiCl (TMP = 2,2,6,6-tetramethylpiperidyl) followed by trapping with electrophiles provided functionalized 2-pyridones and 2,7-naphthyridones. I/Mg exchange of iodinated 2-pyridone and 2,7-naphthyridone using i-PrMgCl·LiCl afforded magnesiated intermediates that reacted with electrophiles. A second magnesiation of the 2-pyridone scaffold was achieved by using TMPMgCl·LiCl. Additionally, we report CoCl2-catalyzed cross-couplings of the 1-chloro-2,7-naphthyridines with arylzinc halides.
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Affiliation(s)
- Dorothée S Ziegler
- Department of Chemistry, Ludwig-Maximilians-University Munich , Butenandtstr. 5-13, 81377 Munich, Germany
| | - Robert Greiner
- Department of Chemistry, Ludwig-Maximilians-University Munich , Butenandtstr. 5-13, 81377 Munich, Germany
| | - Henning Lumpe
- Department of Chemistry, Ludwig-Maximilians-University Munich , Butenandtstr. 5-13, 81377 Munich, Germany
| | - Laura Kqiku
- Department of Chemistry, Ludwig-Maximilians-University Munich , Butenandtstr. 5-13, 81377 Munich, Germany
| | - Konstantin Karaghiosoff
- Department of Chemistry, Ludwig-Maximilians-University Munich , Butenandtstr. 5-13, 81377 Munich, Germany
| | - Paul Knochel
- Department of Chemistry, Ludwig-Maximilians-University Munich , Butenandtstr. 5-13, 81377 Munich, Germany
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26
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Ghosh K, Perlíková P, Havlíček V, Yang C, Pohl R, Tloušťová E, Hodek J, Gurská S, Džubák P, Hajdúch M, Hocek M. Isomeric Naphtho-Fused 7-Deazapurine Nucleosides and Nucleotides: Synthesis, Biological Activity, Photophysical Properties and Enzymatic Incorporation to Nucleic Acids. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800165] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Ketaki Ghosh
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nam. 2 CZ-16610 Prague 6 Czech Republic
| | - Pavla Perlíková
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nam. 2 CZ-16610 Prague 6 Czech Republic
| | - Vojtěch Havlíček
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nam. 2 CZ-16610 Prague 6 Czech Republic
- Department of Organic Chemistry; Faculty of Science; Charles University in Prague; Hlavova 8 CZ-12843 Prague 2 Czech Republic
| | - Chao Yang
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nam. 2 CZ-16610 Prague 6 Czech Republic
- Department of Organic Chemistry; Faculty of Science; Charles University in Prague; Hlavova 8 CZ-12843 Prague 2 Czech Republic
| | - Radek Pohl
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nam. 2 CZ-16610 Prague 6 Czech Republic
| | - Eva Tloušťová
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nam. 2 CZ-16610 Prague 6 Czech Republic
| | - Jan Hodek
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nam. 2 CZ-16610 Prague 6 Czech Republic
| | - Soňa Gurská
- Institute of Molecular and Translational Medicine; Palacky University and University Hospital in Olomouc; Faculty of Medicine and Dentistry; Hněvotínská 5 CZ-775 15 Olomouc Czech Republic
| | - Petr Džubák
- Institute of Molecular and Translational Medicine; Palacky University and University Hospital in Olomouc; Faculty of Medicine and Dentistry; Hněvotínská 5 CZ-775 15 Olomouc Czech Republic
| | - Marián Hajdúch
- Institute of Molecular and Translational Medicine; Palacky University and University Hospital in Olomouc; Faculty of Medicine and Dentistry; Hněvotínská 5 CZ-775 15 Olomouc Czech Republic
| | - Michal Hocek
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nam. 2 CZ-16610 Prague 6 Czech Republic
- Department of Organic Chemistry; Faculty of Science; Charles University in Prague; Hlavova 8 CZ-12843 Prague 2 Czech Republic
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27
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Göbel D, Clamor N, Nachtsheim BJ. Regioselective ortho-functionalization of bromofluorenecarbaldehydes using TMPMgCl·LiCl. Org Biomol Chem 2018; 16:4071-4075. [PMID: 29785418 DOI: 10.1039/c8ob01072b] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A highly regioselective functionalization of 7-bromofluorene-2-carbaldehydes, potent organic chromophores, in position C3 using a mild ortho-metallation strategy (DoM) with TMPMgCl·LiCl has been developed.
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Affiliation(s)
- Dominik Göbel
- University of Bremen
- Department of Organic and Analytical Chemistry
- 28359 Bremen
- Germany
| | - Nils Clamor
- University of Bremen
- Department of Organic and Analytical Chemistry
- 28359 Bremen
- Germany
| | - Boris J. Nachtsheim
- University of Bremen
- Department of Organic and Analytical Chemistry
- 28359 Bremen
- Germany
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28
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Tichý M, Smoleń S, Tloušt'ová E, Pohl R, Oždian T, Hejtmánková K, Lišková B, Gurská S, Džubák P, Hajdúch M, Hocek M. Synthesis and Cytostatic and Antiviral Profiling of Thieno-Fused 7-Deazapurine Ribonucleosides. J Med Chem 2017; 60:2411-2424. [PMID: 28221790 DOI: 10.1021/acs.jmedchem.6b01766] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Two isomeric series of new thieno-fused 7-deazapurine ribonucleosides (derived from 4-substituted thieno[2',3':4,5]pyrrolo[2,3-d]pyrimidines and thieno[3',2':4,5]pyrrolo[2,3-d]pyrimidines) were synthesized by a sequence involving Negishi coupling of 4,6-dichloropyrimidine with iodothiophenes, nucleophilic azidation, and cyclization of tetrazolopyrimidines, followed by glycosylation and cross-couplings or nucleophilic substitutions at position 4. Most nucleosides (from both isomeric series) exerted low micromolar or submicromolar in vitro cytostatic activities against a broad panel of cancer and leukemia cell lines and some antiviral activity against HCV. The most active were the 6-methoxy, 6-methylsulfanyl, and 6-methyl derivatives, which were highly active to cancer cells and less toxic or nontoxic to fibroblasts.
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Affiliation(s)
- Michal Tichý
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Gilead Sciences & IOCB Research Center , Flemingovo nam. 2, CZ-16610 Prague 6, Czech Republic
| | - Sabina Smoleń
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Gilead Sciences & IOCB Research Center , Flemingovo nam. 2, CZ-16610 Prague 6, Czech Republic
| | - Eva Tloušt'ová
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Gilead Sciences & IOCB Research Center , Flemingovo nam. 2, CZ-16610 Prague 6, Czech Republic
| | - Radek Pohl
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Gilead Sciences & IOCB Research Center , Flemingovo nam. 2, CZ-16610 Prague 6, Czech Republic
| | - Tomáš Oždian
- Institute of Molecular and Translational Medicine, Palacky University and University Hospital in Olomouc, Faculty of Medicine and Dentistry , Hněvotínská 5, CZ-775 15 Olomouc, Czech Republic
| | - Klára Hejtmánková
- Institute of Molecular and Translational Medicine, Palacky University and University Hospital in Olomouc, Faculty of Medicine and Dentistry , Hněvotínská 5, CZ-775 15 Olomouc, Czech Republic
| | - Barbora Lišková
- Institute of Molecular and Translational Medicine, Palacky University and University Hospital in Olomouc, Faculty of Medicine and Dentistry , Hněvotínská 5, CZ-775 15 Olomouc, Czech Republic
| | - Soňa Gurská
- Institute of Molecular and Translational Medicine, Palacky University and University Hospital in Olomouc, Faculty of Medicine and Dentistry , Hněvotínská 5, CZ-775 15 Olomouc, Czech Republic
| | - Petr Džubák
- Institute of Molecular and Translational Medicine, Palacky University and University Hospital in Olomouc, Faculty of Medicine and Dentistry , Hněvotínská 5, CZ-775 15 Olomouc, Czech Republic
| | - Marián Hajdúch
- Institute of Molecular and Translational Medicine, Palacky University and University Hospital in Olomouc, Faculty of Medicine and Dentistry , Hněvotínská 5, CZ-775 15 Olomouc, Czech Republic
| | - Michal Hocek
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Gilead Sciences & IOCB Research Center , Flemingovo nam. 2, CZ-16610 Prague 6, Czech Republic.,Department of Organic Chemistry, Faculty of Science, Charles University in Prague , Hlavova 8, CZ-12843 Prague 2, Czech Republic
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29
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Kamijo S, Kamijo K, Murafuji T. Synthesis of Alkylated Pyrimidines via Photoinduced Coupling Using Benzophenone as a Mediator. J Org Chem 2017; 82:2664-2671. [PMID: 28194979 DOI: 10.1021/acs.joc.6b03058] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis of alkylated pyrimidines was achieved via benzophenone-mediated photoinduced coupling between saturated heterocycles and sulfonylpyrimidines. The pyrimidine ring was selectively introduced at the nonacidic C(sp3)-H bond proximal to heteroatoms including oxygen, nitrogen, and sulfur. This is a coupling reaction mediated solely by photoexcited benzophenone, an organic molecule, without the aid of any metallic catalysts or reagents.
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Affiliation(s)
- Shin Kamijo
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University , Yamaguchi 753-8512, Japan
| | - Kaori Kamijo
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University , Yamaguchi 753-8512, Japan
| | - Toshihiro Murafuji
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University , Yamaguchi 753-8512, Japan
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30
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Kobayashi K, Nogi T, Tsunomori Y, Hiyoshi H, Umezu K. Synthesis of 8,9-Dihydropyrimido[4,5-e][1,4]oxazepin-7(5H)-ones by the Reaction of 1-(4-Chloropyrimidin-5-yl)alkan-1-ols with N-Alkylglycines. HETEROCYCLES 2017. [DOI: 10.3987/com-17-13795] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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31
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Haas D, Sustac-Roman D, Schwarz S, Knochel P. Directed Zincation with TMPZnCl·LiCl and Further Functionalization of the Tropolone Scaffold. Org Lett 2016; 18:6380-6383. [DOI: 10.1021/acs.orglett.6b03270] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Diana Haas
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstr. 5-13, 81377 Munich, Germany
| | - Daniela Sustac-Roman
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstr. 5-13, 81377 Munich, Germany
| | - Sophia Schwarz
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstr. 5-13, 81377 Munich, Germany
| | - Paul Knochel
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstr. 5-13, 81377 Munich, Germany
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32
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Klier L, Aranzamendi E, Ziegler D, Nickel J, Karaghiosoff K, Carell T, Knochel P. Lewis Acid Triggered Regioselective Magnesiation and Zincation of Uracils, Uridines, and Cytidines. Org Lett 2016; 18:1068-71. [DOI: 10.1021/acs.orglett.6b00190] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Lydia Klier
- Department
Chemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
| | - Eider Aranzamendi
- Department
Chemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
| | - Dorothée Ziegler
- Department
Chemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
| | - Johannes Nickel
- Department
Chemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
| | - Konstantin Karaghiosoff
- Department
Chemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
| | - Thomas Carell
- Department
Chemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
| | - Paul Knochel
- Department
Chemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
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33
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Ganiek MA, Becker MR, Ketels M, Knochel P. Continuous Flow Magnesiation or Zincation of Acrylonitriles, Acrylates, and Nitroolefins. Application to the Synthesis of Butenolides. Org Lett 2016; 18:828-31. [DOI: 10.1021/acs.orglett.6b00086] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Maximilian A. Ganiek
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstr. 5-13, 81377 Munich, Germany
| | - Matthias R. Becker
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstr. 5-13, 81377 Munich, Germany
| | - Marthe Ketels
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstr. 5-13, 81377 Munich, Germany
| | - Paul Knochel
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstr. 5-13, 81377 Munich, Germany
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34
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Nafe J, Auras F, Karaghiosoff K, Bein T, Knochel P. Selective Functionalization of Tetrathiafulvalene Using Mg- and Zn-TMP-Bases: Preparation of Mono-, Di-, Tri-, and Tetrasubstituted Derivatives. Org Lett 2015; 17:5356-9. [PMID: 26469280 PMCID: PMC4797621 DOI: 10.1021/acs.orglett.5b02715] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Indexed: 11/30/2022]
Abstract
The tetrathiafulvalene-scaffold (TTF) reacts selectively in allylation, acylation, arylation, halogenation, and thiolation reactions via magnesium or zinc derivatives that are obtained by a direct metalation with Mg- and Zn-TMP-bases (TMP = 2,2,6,6-tetramethylpiperidyl). This stepwise functionalization provides access to a range of new mono-, di-, tri-, and tetra-functionalized TTF-derivatives and allows for fine-tuning of their energy levels.
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Affiliation(s)
- Julia Nafe
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
| | - Florian Auras
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
| | - Konstantin Karaghiosoff
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
| | - Thomas Bein
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
| | - Paul Knochel
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
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35
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Liu KM, Liao LY, Duan XF. Iron catalyzed oxidative assembly of N-heteroaryl and aryl metal reagents using oxygen as an oxidant. Chem Commun (Camb) 2015; 51:1124-7. [PMID: 25466876 DOI: 10.1039/c4cc08494b] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
An equivalent amount of N-heteroaryl and aryl Grignard or lithium reagents, after mediation by an equivalent of titanate, was facilely coupled to furnish N-heteroaryl-aryl compounds under the catalysis of FeCl3/TMEDA at ambient temperature using oxygen as an oxidant. Most of the common N-heteroaryls were all good candidates, and thus provided a general, green and pratical protocol for the flexible construction of various N-heteroaryl-aryl structures.
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Affiliation(s)
- Kun Ming Liu
- College of Chemistry, Beijing Normal University, Beijing, 100875, China.
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36
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Palladium-Catalyzed Zinc-Amide-Mediated CH Arylation of Fluoroarenes and Heteroarenes with Aryl Sulfides. Chemistry 2015; 21:14703-7. [DOI: 10.1002/chem.201502101] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Indexed: 12/23/2022]
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37
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He LY, Schulz-Senft M, Thiedemann B, Linshoeft J, Gates PJ, Staubitz A. Nucleophile-Selective Cross-Coupling Reactions with Vinyl and Alkynyl Bromides on a Dinucleophilic Aromatic Substrate. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500138] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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38
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Böck K, Feil JE, Karaghiosoff K, Koszinowski K. Catalyst Activation, Deactivation, and Degradation in Palladium-Mediated Negishi Cross-Coupling Reactions. Chemistry 2015; 21:5548-60. [DOI: 10.1002/chem.201406408] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Indexed: 11/11/2022]
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39
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Hammann JM, Haas D, Knochel P. Cobalt-katalysierte Negishi-Kreuzkupplungen von (Hetero)Arylzinkreagentien mit primären und sekundären Alkylbromiden und -iodiden. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411960] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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40
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Hammann JM, Haas D, Knochel P. Cobalt-Catalyzed Negishi Cross-Coupling Reactions of (Hetero)Arylzinc Reagents with Primary and Secondary Alkyl Bromides and Iodides. Angew Chem Int Ed Engl 2015; 54:4478-81. [DOI: 10.1002/anie.201411960] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Indexed: 11/11/2022]
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41
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Frischmuth A, Fernández M, Barl NM, Achrainer F, Zipse H, Berionni G, Mayr H, Karaghiosoff K, Knochel P. In-situ-Abfangmethode zur Metallierung funktionalisierter Arene und Heteroarene mit TMPLi in Gegenwart von ZnCl2und anderen Metallsalzen. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403688] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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42
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Frischmuth A, Fernández M, Barl NM, Achrainer F, Zipse H, Berionni G, Mayr H, Karaghiosoff K, Knochel P. New In Situ Trapping Metalations of Functionalized Arenes and Heteroarenes with TMPLi in the Presence of ZnCl2and Other Metal Salts. Angew Chem Int Ed Engl 2014; 53:7928-32. [DOI: 10.1002/anie.201403688] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Indexed: 12/31/2022]
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43
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Klatt T, Markiewicz JT, Sämann C, Knochel P. Strategies To Prepare and Use Functionalized Organometallic Reagents. J Org Chem 2014; 79:4253-69. [DOI: 10.1021/jo500297r] [Citation(s) in RCA: 124] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Thomas Klatt
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse
5-13, Haus F, 81377 München, Germany
| | - John T. Markiewicz
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse
5-13, Haus F, 81377 München, Germany
| | - Christoph Sämann
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse
5-13, Haus F, 81377 München, Germany
| | - Paul Knochel
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse
5-13, Haus F, 81377 München, Germany
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44
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Tsuchido Y, Suzaki Y, Ide T, Osakada K. Dynamic properties of molecular tweezers with a bis(2-hydroxyphenyl)pyrimidine backbone. Chemistry 2014; 20:4762-71. [PMID: 24604771 DOI: 10.1002/chem.201304380] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2013] [Indexed: 11/11/2022]
Abstract
4,6-Bis(2-hydroxyphenyl)-2-alkylpyrimidines with two anthryl or 9-ethylnylanthryl substituents at the positions para to the OH groups prefer a U-shaped conformation supported by two intramolecular OH⋅⋅⋅N hydrogen bonds in the solid state and in CDCl3 solution. The compound with a hexyl substituent on the pyrimidine group and two 9-ethynylanthryl arms at the hydroxyphenyl groups forms a 1:1 complex with 2,4,7-trinitrofluorenone. Its association constant K(a) was estimated to be 2100 M(-1) at 298 K, which is larger than those of other molecular tweezers (K(a) < 1000 M(-1)). DFT calculations suggested that the complex adopts a stable conformation supported by intramolecular hydrogen bonds among the OH groups and the pyrimidine ring as well as by intermolecular π-π interaction between the anthryl groups and 2,4,7-trinitrofluorenone. Addition of nBu4NF to a solution of the molecular tweezers or their complexes causes the cleavage of one or two OH⋅⋅⋅N hydrogen bonds, formation of new O⋅⋅⋅HF hydrogen bonds, and changes in the molecular conformation. The resulting structure of the molecular tweezers contains nonparallel anthryl groups, which do not bind the guest molecule. Photochemical measurements on 4,6-bis(2-hydroxyphenyl)-2-methylpyrimidine with two anthryl substituents showed negligible luminescence (quantum yield ϕ<0.01), owing to photoinduced electron transfer of the molecule with a U-shaped structure. However, the O-hexylated compound exhibits emission from the anthryl groups with ϕ=0.39.
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Affiliation(s)
- Yoshitaka Tsuchido
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 R2-3, Nagastuta, Midori-ku, Yokohama 226-8503 (Japan), Fax: (+81) 45-924-5224
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45
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Qiu D, Wang S, Tang S, Meng H, Jin L, Mo F, Zhang Y, Wang J. Synthesis of Trimethylstannyl Arylboronate Compounds by Sandmeyer-Type Transformations and Their Applications in Chemoselective Cross-Coupling Reactions. J Org Chem 2014; 79:1979-88. [DOI: 10.1021/jo402618r] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Di Qiu
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Shuai Wang
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Shengbo Tang
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - He Meng
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Liang Jin
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Fanyang Mo
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Yan Zhang
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
| | - Jianbo Wang
- Beijing
National Laboratory of Molecular Sciences (BNLMS), Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry, Peking University, Beijing 100871, China
- State
Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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46
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Klatt T, Roman DS, León T, Knochel P. TMP-magnesium and TMP-zinc bases for the regioselective metalation of the cinnoline scaffold. Org Lett 2014; 16:1232-5. [PMID: 24512618 DOI: 10.1021/ol5001999] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A regioselective functionalization of cinnolines in positions 3 and 8 using metalations has been developed. This involves either the use of a frustrated Lewis pair consisting of BF3·Et2O and TMP2Mg·2LiCl or the in situ generated base TMP2Zn·2MgCl2·2LiCl. Successive metalations allow the preparation of 3,8-disubstituted cinnolines. Various functionalizations by acylation, allylation, and cross-coupling reactions with aryl halides or alkenyl iodides were carried out successfully.
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Affiliation(s)
- Thomas Klatt
- Department of Chemistry, Ludwig-Maximilians-University , Munich, Germany
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47
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Xu L, Ding S, Li P. Site-Differentiated Polyboron Arenes Prepared by Direct CH Borylation and Their Highly Selective Suzuki-Miyaura Cross-Coupling Reactions. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201309546] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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48
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Xu L, Ding S, Li P. Site-Differentiated Polyboron Arenes Prepared by Direct CH Borylation and Their Highly Selective Suzuki-Miyaura Cross-Coupling Reactions. Angew Chem Int Ed Engl 2014; 53:1822-6. [DOI: 10.1002/anie.201309546] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2013] [Indexed: 12/22/2022]
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49
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Martínez-Martínez AJ, Armstrong DR, Conway B, Fleming BJ, Klett J, Kennedy AR, Mulvey RE, Robertson SD, O'Hara CT. Pre-inverse-crowns: synthetic, structural and reactivity studies of alkali metal magnesiates primed for inverse crown formation. Chem Sci 2014. [DOI: 10.1039/c3sc52816b] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The synthesis, structure and reactivity of donor-free sodium and potassium magnesiates are assessed culminating in the unique 1,4-dimetallation of naphthalene.
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Affiliation(s)
| | - D. R. Armstrong
- WestCHEM
- Department of Pure and Applied Chemistry
- University of Strathclyde
- Glasgow, UK
| | - B. Conway
- WestCHEM
- Department of Pure and Applied Chemistry
- University of Strathclyde
- Glasgow, UK
| | - B. J. Fleming
- WestCHEM
- Department of Pure and Applied Chemistry
- University of Strathclyde
- Glasgow, UK
| | - J. Klett
- WestCHEM
- Department of Pure and Applied Chemistry
- University of Strathclyde
- Glasgow, UK
| | - A. R. Kennedy
- WestCHEM
- Department of Pure and Applied Chemistry
- University of Strathclyde
- Glasgow, UK
| | - R. E. Mulvey
- WestCHEM
- Department of Pure and Applied Chemistry
- University of Strathclyde
- Glasgow, UK
| | - S. D. Robertson
- WestCHEM
- Department of Pure and Applied Chemistry
- University of Strathclyde
- Glasgow, UK
| | - C. T. O'Hara
- WestCHEM
- Department of Pure and Applied Chemistry
- University of Strathclyde
- Glasgow, UK
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Metal Catalyzed Cross-Coupling Reactions in the Decoration of Pyrimidine, Pyridazine, and Pyrazine. TOPICS IN HETEROCYCLIC CHEMISTRY 2014. [DOI: 10.1007/7081_2014_138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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