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Suzuki–Miyaura Reactions of (4-bromophenyl)-4,6-dichloropyrimidine through Commercially Available Palladium Catalyst: Synthesis, Optimization and Their Structural Aspects Identification through Computational Studies. Processes (Basel) 2020. [DOI: 10.3390/pr8111342] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
5-(4-bromophenyl)-4,6-dichloropyrimidine was arylated with several aryl/heteroaryl boronic acids via the Suzuki cross-coupling reaction by using Pd(0) catalyst to yield novel pyrimidine analogs (3a-h). It was optimized so that good yields were obtained when 5 mol % Pd(PPh3)4 was used along with K3PO4 and 1,4-Dioxane. Electron-rich boronic acids were succeeded to produce good yields of products. Density functional theory (DFT) calculations were also applied on these new compounds to analyze their reactivity descriptors and electronic and structural relationship. According to DFT studies, compound 3f is the most reactive one, while 3g is the most stable one. As per DFT studies, the hyperpolarizability (β) values of these compounds do not show them as very good non-linear optical (NLO) materials. Compound 3f has the highest β value among all the compounds under study but still it is not high enough to render it a potent NLO material.
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Tomanová M, Jedinák L, Košař J, Kvapil L, Hradil P, Cankař P. Synthesis of 4-substituted pyrazole-3,5-diamines via Suzuki-Miyaura coupling and iron-catalyzed reduction. Org Biomol Chem 2017; 15:10200-10211. [PMID: 29177274 DOI: 10.1039/c7ob02373a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A general and efficient synthesis of 4-substituted-1H-pyrazole-3,5-diamines was developed to access derivatives with an aryl, heteroaryl, or styryl group, which are otherwise relatively difficult to prepare. The first step is based on the Suzuki-Miyaura cross-coupling reaction utilizing the XPhos Pd G2 precatalyst. The coupling reactions of 4-bromo-3,5-dinitro-1H-pyrazole with the electron-rich/deficient or sterically demanding boronic acids enabled the production of the corresponding dinitropyrazoles. The subsequent iron-catalyzed reduction of both nitro groups with hydrazine hydrate accomplished the synthesis. The additional demethylation of the 4-methoxystyryl derivative allowed the production of the carboanalog of CAN508 reported as a selective CDK9 inhibitor.
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Affiliation(s)
- Monika Tomanová
- Institute of Molecular and Translation Medicine, Faculty of Medicine, Palacký University, Hněvotínská 5, 77900 Olomouc, Czech Republic
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Li Z, Gelbaum C, Campbell ZS, Gould PC, Fisk JS, Holden B, Jaganathan A, Whiteker GT, Pollet P, Liotta CL. Pd-Catalyzed Suzuki coupling reactions of aryl halides containing basic nitrogen centers with arylboronic acids in water in the absence of added base. NEW J CHEM 2017. [DOI: 10.1039/c7nj03567e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Successful Suzuki reactions of basic nitrogen containing aryl chlorides/bromides with arylboronic acids in water without added base, partially or entirely under acidic conditions.
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Affiliation(s)
- Zhao Li
- School of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta
- USA
| | - Carol Gelbaum
- School of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta
- USA
| | - Zachary S. Campbell
- School of Chemical and Biomolecular Engineering
- Georgia Institute of Technology
- Atlanta
- USA
| | - Paul C. Gould
- School of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta
- USA
| | | | | | | | | | - Pamela Pollet
- School of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta
- USA
| | - Charles L. Liotta
- School of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta
- USA
- School of Chemical and Biomolecular Engineering
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Li Z, Gelbaum C, Fisk JS, Holden B, Jaganathan A, Whiteker GT, Pollet P, Liotta CL. Aqueous Suzuki Coupling Reactions of Basic Nitrogen-Containing Substrates in the Absence of Added Base and Ligand: Observation of High Yields under Acidic Conditions. J Org Chem 2016; 81:8520-9. [PMID: 27559749 DOI: 10.1021/acs.joc.6b01683] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of aqueous heterogeneous Suzuki coupling reactions of substrates containing basic nitrogen centers with phenylboronic acid in the absence of added base and ligand is presented. High yields of products were obtained by employing aryl bromides containing aliphatic 1°, 2°, and 3° amine substituents, and good to high yields were obtained by employing a variety of substituted bromopyridines. In the former series, the pH of the aqueous phase changed from basic to acidic during the course of the reaction, while in the latter series the aqueous phase was on the acidic side of the pH scale throughout the entire course of reaction. A mechanistic interpretation for these observations, which generally preserves the oxo palladium catalytic cycle widely accepted in the literature, is presented.
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Affiliation(s)
- Zhao Li
- School of Chemistry and Biochemistry, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
| | - Carol Gelbaum
- School of Chemistry and Biochemistry, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
| | - Jason S Fisk
- The Dow Chemical Company, Midland, Michigan 48674, United States
| | - Bruce Holden
- The Dow Chemical Company, Midland, Michigan 48674, United States
| | | | | | - Pamela Pollet
- School of Chemistry and Biochemistry, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
| | - Charles L Liotta
- School of Chemistry and Biochemistry, Georgia Institute of Technology , Atlanta, Georgia 30332, United States.,School of Chemical and Biomolecular Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
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Li Z, Gelbaum C, Heaner WL, Fisk J, Jaganathan A, Holden B, Pollet P, Liotta CL. Palladium-Catalyzed Suzuki Reactions in Water with No Added Ligand: Effects of Reaction Scale, Temperature, pH of Aqueous Phase, and Substrate Structure. Org Process Res Dev 2016. [DOI: 10.1021/acs.oprd.6b00180] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Zhao Li
- School
of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Carol Gelbaum
- School
of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - William L. Heaner
- School
of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Jason Fisk
- The Dow Chemical Company, Midland, Michigan 48674, United States
| | | | - Bruce Holden
- The Dow Chemical Company, Midland, Michigan 48674, United States
| | - Pamela Pollet
- School
of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Charles L. Liotta
- School
of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- School
of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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Guo FC, Zhou R, Jiang ZJ, Wang W, Fu HY, Zheng XL, Chen H, Li RX. N,N,N′,N′-tetra(diphenylphosphinomethyl)pyridine-2,6-diamine/palladium catalyzed Suzuki–Miyaura coupling of aryl and heteroaryl halides. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2015.03.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Ibrahim MB, Ali BE, Fettouhi M, Ouahab L. A highly active palladium(II)-bis(oxazoline) catalyst for Suzuki-Miyaura, Mizoroki-Heck and sonogashira coupling reactions in aqueous dimethylformamide. Appl Organomet Chem 2015. [DOI: 10.1002/aoc.3305] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mansur B. Ibrahim
- Chemistry Department; King Fahd University of Petroleum & Minerals; Dhahran 31261 Saudi Arabia
| | - Bassam El Ali
- Chemistry Department; King Fahd University of Petroleum & Minerals; Dhahran 31261 Saudi Arabia
| | - Mohammed Fettouhi
- Chemistry Department; King Fahd University of Petroleum & Minerals; Dhahran 31261 Saudi Arabia
| | - Lahcène Ouahab
- Institut Sciences Chimiques de Rennes; UMR 6226, CNRS, Université de Rennes 1; France
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Senter C, Rumple A, Medina-Ramos W, Houle D, Cheng Z, Gelbaum C, Fisk J, Holden B, Pollet P, Eckert CA, Liotta CL. The effects of CO2 pressure and pH on the Suzuki coupling of basic nitrogen containing substrates. Org Biomol Chem 2014; 12:7598-602. [DOI: 10.1039/c4ob01630k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Suzuki coupling reaction of basic nitrogen containing substrates (2-bromo- and 2-chloro-4-aminopyridine, and 2-bromo and 2-chloropyridine) with phenylboronic acid using Pd(TPP)2Cl2/K3PO4 in acetonitrile–water biphasic solvent systems under a CO2 or a N2 atmosphere is discussed.
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Affiliation(s)
- C. Senter
- School of Chemical and Biomolecular Engineering
- Georgia Institute of Technology
- Atlanta, USA
| | - A. Rumple
- School of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta, USA
| | - W. Medina-Ramos
- School of Chemical and Biomolecular Engineering
- Georgia Institute of Technology
- Atlanta, USA
| | - D. Houle
- School of Chemical and Biomolecular Engineering
- Georgia Institute of Technology
- Atlanta, USA
| | - Z. Cheng
- School of Chemical and Biomolecular Engineering
- Georgia Institute of Technology
- Atlanta, USA
| | - C. Gelbaum
- School of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta, USA
| | - J. Fisk
- Dow Chemical Company
- Midland, USA
| | | | - P. Pollet
- School of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta, USA
| | - C. A. Eckert
- School of Chemical and Biomolecular Engineering
- Georgia Institute of Technology
- Atlanta, USA
- School of Chemistry and Biochemistry
- Georgia Institute of Technology
| | - Charles L. Liotta
- School of Chemical and Biomolecular Engineering
- Georgia Institute of Technology
- Atlanta, USA
- School of Chemistry and Biochemistry
- Georgia Institute of Technology
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Zhou R, Wang W, Jiang ZJ, Fu HY, Zheng XL, Zhang CC, Chen H, Li RX. Pd/tetraphosphine catalytic system for Cu-free Sonogashira reaction “on water”. Catal Sci Technol 2014. [DOI: 10.1039/c3cy00831b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Wang K, Wang W, Luo H, Zheng X, Fu H, Chen H, Li R. An Easily Prepared Tetraphosphine and Its Use in the Palladium-Catalyzed Suzuki–Miyaura Coupling of Aryl Chlorides. Catal Letters 2013. [DOI: 10.1007/s10562-013-1028-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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