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Fang F, Xia J, Quan S, Chen S, Deng GJ. Metal- and Solvent-Free Synthesis of Substituted Pyrimidines via an NH 4I-Promoted Three-Component Tandem Reaction. J Org Chem 2023; 88:14697-14707. [PMID: 37773063 DOI: 10.1021/acs.joc.3c01700] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
A facile and practical approach for the preparation of substituted pyrimidines from ketones, NH4OAc, and N,N-dimethylformamide dimethyl acetal has been described. This NH4I-promoted three-component tandem reaction affords a broad range of substituted pyrimidines in acceptable yields under metal- and solvent-free conditions. The present methodology features the advantages of simple and easily available starting materials, metal- and solvent-free conditions, a broad substrate scope with good functional group tolerance, and gram-scale synthesis.
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Affiliation(s)
- Fang Fang
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education Hunan Province, Key Laboratory of Green Organic Synthesis and Application, College of Chemistry, Xiangtan University, Xiangtan 411105, P. R. China
- College of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, P. R. China
| | - Jie Xia
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education Hunan Province, Key Laboratory of Green Organic Synthesis and Application, College of Chemistry, Xiangtan University, Xiangtan 411105, P. R. China
| | - Siying Quan
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education Hunan Province, Key Laboratory of Green Organic Synthesis and Application, College of Chemistry, Xiangtan University, Xiangtan 411105, P. R. China
| | - Shanping Chen
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education Hunan Province, Key Laboratory of Green Organic Synthesis and Application, College of Chemistry, Xiangtan University, Xiangtan 411105, P. R. China
| | - Guo-Jun Deng
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education Hunan Province, Key Laboratory of Green Organic Synthesis and Application, College of Chemistry, Xiangtan University, Xiangtan 411105, P. R. China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, P. R. China
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Chan CK, Chung YH, Wang CC. Acid-controlled multicomponent selective synthesis of 2,4,6-triaryl pyridines and pyrimidines by using hexamethyldisilazane as a nitrogen source under microwave irradiation. RSC Adv 2022; 12:27281-27291. [PMID: 36276015 PMCID: PMC9513438 DOI: 10.1039/d2ra04739j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 09/20/2022] [Indexed: 12/02/2022] Open
Abstract
An efficient and general protocol for the synthesis of functionalized 2,4,6-triaryl pyridines and pyrimidines was developed from commercially available aromatic ketones, aldehydes and hexamethyldisilazane (HMDS) as a nitrogen source under microwave irradiation. In this multicomponent synthetic route, Lewis acids play an important role in selectively synthesizing six-membered heterocycles, including pyridines (1N) and pyrimidines (2N), by involving [2 + 1 + 2 + 1] or [2 + 1 + 1 + 1 + 1] annulated processes.
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Affiliation(s)
- Chieh-Kai Chan
- Institute of Chemistry, Academia Sinica Taipei 115 Taiwan
| | - Yi-Hsiu Chung
- Institute of Chemistry, Academia Sinica Taipei 115 Taiwan
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3
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Zhao P, Zhou Y, Yu XX, Huang C, Wu YD, Yin G, Wu AX. Iodine-Promoted Multicomponent Synthesis of 2,4-Diamino-1,3,5-triazines. Org Lett 2020; 22:8528-8532. [PMID: 33047965 DOI: 10.1021/acs.orglett.0c03130] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A novel and efficient multicomponent cyclization of methyl ketones, cyanamides, and arylamines for the synthesizing 2,4-diamino-1,3,5-triazines via consecutive formation of four C-N bonds is reported. This multicomponent reaction is characterized by the employment of two molecules of cyanamide for double C(sp3)-H amination of methyl ketones, avoiding complicated prepreparation of substrates and expanding the substrate scope. Furthermore, this multicomponent cyclization strategy provides a new approach for generating diverse 2,4-diamino-1,3,5-triazines with a broad substrate scope under mild conditions.
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Affiliation(s)
- Peng Zhao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - You Zhou
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Xiao-Xiao Yu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Chun Huang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Guodong Yin
- College of Chemistry and Chemical Engineering, Hubei Key Laboratory of Pollutant Analysis and Reuse Technology, Hubei Normal University, Huangshi 435002, P.R. China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
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Su L, Sun K, Pan N, Liu L, Sun M, Dong J, Zhou Y, Yin SF. Cyclization of Ketones with Nitriles under Base: A General and Economical Synthesis of Pyrimidines. Org Lett 2018; 20:3399-3402. [DOI: 10.1021/acs.orglett.8b01324] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Lebin Su
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Kang Sun
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Neng Pan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Long Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Mengli Sun
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Jianyu Dong
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Yongbo Zhou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Shuang-Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
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Eurotiumins A⁻E, Five New Alkaloids from the Marine-Derived Fungus Eurotium sp. SCSIO F452. Mar Drugs 2018; 16:md16040136. [PMID: 29690501 PMCID: PMC5923423 DOI: 10.3390/md16040136] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 04/14/2018] [Accepted: 04/18/2018] [Indexed: 12/13/2022] Open
Abstract
Three new prenylated indole 2,5-diketopiperazine alkaloids (1–3) with nine known ones (5–13), one new indole alkaloid (4), and one new bis-benzyl pyrimidine derivative (14) were isolated and characterized from the marine-derived fungus Eurotium sp. SCSIO F452. 1 and 2, occurring as a pair of diastereomers, both presented a hexahydropyrrolo[2,3-b]indole skeleton. Their chemical structures, including absolute configurations, were elucidated by 1D and 2D NMR, HRESIMS, quantum chemical calculations of electronic circular dichroism, and single crystal X-ray diffraction experiments. Most isolated compounds were screened for antioxidative potency. Compounds 3, 5, 6, 7, 9, 10, and 12 showed significant radical scavenging activities against DPPH with IC50 values of 13, 19, 4, 3, 24, 13, and 18 µM, respectively. Five new compounds were evaluated for cytotoxic activities.
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Fernández I, Fernández-Valle ME, Martínez-Álvarez R, Molero-Vílchez D, Pardo ZD, Sáez-Barajas E, Sánchez Á, Herrera A. Discovering Mechanistic Insights by Application of Tandem Ultrafast Multidimensional NMR Techniques. J Org Chem 2014; 79:8086-93. [DOI: 10.1021/jo5012834] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Israel Fernández
- Departamento
de Química Orgánica I and ‡CAI de RMN y RSE, Facultad de Químicas, Universidad Complutense, 28040 Madrid, Spain
| | | | - Roberto Martínez-Álvarez
- Departamento
de Química Orgánica I and ‡CAI de RMN y RSE, Facultad de Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Dolores Molero-Vílchez
- Departamento
de Química Orgánica I and ‡CAI de RMN y RSE, Facultad de Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Zulay D. Pardo
- Departamento
de Química Orgánica I and ‡CAI de RMN y RSE, Facultad de Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Elena Sáez-Barajas
- Departamento
de Química Orgánica I and ‡CAI de RMN y RSE, Facultad de Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Ángel Sánchez
- Departamento
de Química Orgánica I and ‡CAI de RMN y RSE, Facultad de Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Antonio Herrera
- Departamento
de Química Orgánica I and ‡CAI de RMN y RSE, Facultad de Químicas, Universidad Complutense, 28040 Madrid, Spain
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Herrera A, Martínez-Alvarez R, Ramiro P, Almy J. An Easy Synthesis of Pyranopyrimidines. MONATSHEFTE FUR CHEMIE 2006. [DOI: 10.1007/s00706-006-0528-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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The reaction of thioesters with nitriles. A new synthetic approach to the preparation of substituted 4-alkylthio- and 4-arylthiopyrimidine derivatives. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)01133-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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On the regioselectivity in the reaction of aliphatic ketones and aromatic nitriles. Regiospecific synthesis of alkylarylpyrimidines. Tetrahedron 2002. [DOI: 10.1016/s0040-4020(02)01300-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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