1
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Wang WK, Bao FY, Shang ZW, Zheng J, Zhao SY. Three-Component Assembly of Dihydropyrrolo[3,4- e][1,3]thiazines from Elemental Sulfur, Maleimides, and 1,3,5-Triazinanes. Org Lett 2024; 26:4297-4301. [PMID: 38739778 DOI: 10.1021/acs.orglett.4c01164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
A three-component reaction for the synthesis of dihydropyrrolo[3,4-e][1,3]thiazines has been developed. Elemental sulfur, maleimides, and 1,3,5-triazinanes are assembled together through sulfuration/nucleophilic attack in N-methylpyrrolidin-2-one (NMP) under mild conditions. A small amount of NaHCO3 is important for the activation of the reaction. In this method, sulfur plays a dual role in thiazine ring formation, while triazinanes are utilized as three-atom synthons in the annulation reaction.
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Affiliation(s)
- Wen-Kang Wang
- College of Chemistry and Chemical Engineering, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, P. R. China
| | - Fei-Yun Bao
- College of Chemistry and Chemical Engineering, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, P. R. China
| | - Zhi-Wei Shang
- College of Chemistry and Chemical Engineering, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, P. R. China
| | - Jian Zheng
- College of Chemistry and Chemical Engineering, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, P. R. China
| | - Sheng-Yin Zhao
- College of Chemistry and Chemical Engineering, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, P. R. China
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2
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Taheri E, Jafarpour F. Developing a straightforward route toward the synthesis of arylaminomaleimides by palladium-catalyzed arylation of one-pot synthesized aminomaleimides. Org Biomol Chem 2023; 22:169-174. [PMID: 38051284 DOI: 10.1039/d3ob01765f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
3-Aryl-4-aminomaleimides have well-demonstrated applications, such as being used as fluorophores and inhibitors. However, their previous synthesis methods have involved tedious multi-step procedures or methods that need pre-functionalized maleimides and toxic or unstable reagents. Here, a feasible method is developed to synthesize these useful compounds. This includes the one-pot preparation of 3-aminomaleimides, followed by their direct arylation through a palladium-catalyzed Heck reaction with various aryl iodides regioselectively at the β-position of their amine substituents. The results show that this method efficiently exhibits a broad scope.
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Affiliation(s)
- Elmira Taheri
- School of Chemistry, College of Science, University of Tehran, 14155-6455 Tehran, Iran.
| | - Farnaz Jafarpour
- School of Chemistry, College of Science, University of Tehran, 14155-6455 Tehran, Iran.
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3
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Wang J, Zhao L, Zhang Y, Zheng P, Zou P, Wu G. Alkyltin fluorides as alkylating reagent in aminoalkylation of maleimides. Org Biomol Chem 2023. [PMID: 37377436 DOI: 10.1039/d3ob00889d] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
Alkyltin fluoride is a frequently used electrophilic stannylation reagent via the cleavage of the Sn-F bond in traditional organic synthetic chemistry. Herein, we report the unprecedented copper-catalyzed aminoalkylation of maleimides using alkyltin fluoride as alkylating reagent through cleavage of the C-Sn bond via a radical pathway. Excellent functional group tolerance, use of O2 as green oxidant and late-stage modification of some drug intermediates are the standout features of the current toolbox. Mechanistic studies reveal that alkyltin fluorides are capable of producing alkyl radicals in a Cu/O2 catalytic system.
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Affiliation(s)
- Jingjing Wang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, People's Republic of China.
| | - Lin Zhao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, People's Republic of China.
| | - Yafei Zhang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, People's Republic of China.
| | - Peisen Zheng
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, People's Republic of China.
| | - Peng Zou
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, People's Republic of China.
| | - Ge Wu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, People's Republic of China.
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
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4
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Wang WK, Bao FY, Wang ST, Zhao SY. Access to 3-Aminomethylated Maleimides via a Phosphine-Catalyzed Aza-Morita-Baylis-Hillman Type Coupling. J Org Chem 2023. [PMID: 37114576 DOI: 10.1021/acs.joc.3c00284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
A designed method for the preparation of 3-aminomethylated maleimides via Morita-Baylis-Hillman (MBH) reaction was developed. This phosphine-catalyzed coupling adopted maleimides and 1,3,5-triazinanes as the substrate, giving a series of 3-aminomethylated maleimide derivatives with a double bond retained on the maleimide ring in 41-90% yield. Acylation, isomerization, and Michael addition of the obtained products demonstrated the synthetic application of the present protocol. The results of control experiments indicated that phosphorus ylide formation and elimination take place during the reaction pathway.
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Affiliation(s)
- Wen-Kang Wang
- College of Chemistry and Chemical Engineering, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, PR China
| | - Fei-Yun Bao
- College of Chemistry and Chemical Engineering, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, PR China
| | - Si-Tian Wang
- College of Chemistry and Chemical Engineering, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, PR China
| | - Sheng-Yin Zhao
- College of Chemistry and Chemical Engineering, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, PR China
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5
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Organocatalytic Enantioselective Michael Reaction of Aminomaleimides with Nitroolefins Catalyzed by Takemoto's Catalyst. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227787. [PMID: 36431888 PMCID: PMC9696348 DOI: 10.3390/molecules27227787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/06/2022] [Accepted: 11/07/2022] [Indexed: 11/16/2022]
Abstract
Known as electrophiles, maleimides are often used as acceptors in Michael additions to produce succinimides. However, reactions with maleimides as nucleophiles for enantioselective functionalization are only rarely performed. In this paper, a series of bifunctional Takemoto's catalysts were used to organocatalyze the enantioselective Michael reaction of aminomaleimides with nitroolefins. The resulting products were obtained in good yields (76-86%) with up to 94% enantiomer excess (ee). The catalyst type and the substrate scope were broadened using this methodology.
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6
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Vargas DF, Kaufman TS, Larghi EL. Total Synthesis of Aqabamycin G, a Nitrophenyl Indolylmaleimide Marine Alkaloid from Vibrio sp. WMBA. J Org Chem 2022; 87:13494-13500. [PMID: 35324169 DOI: 10.1021/acs.joc.2c00063] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The first total synthesis of the marine alkaloid aqabamycin G is disclosed. The synthetic sequence involved the stepwise addition to maleimide of an indole motif and a substituted diazo-benzenoid unit derived from acetaminophen. An alternative strategy using a protected phenol is also reported.
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Affiliation(s)
- Didier F Vargas
- Instituto de Química Rosario (IQUIR, CONICET-UNR) and Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, S2002LRK Rosario, Argentina
| | - Teodoro S Kaufman
- Instituto de Química Rosario (IQUIR, CONICET-UNR) and Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, S2002LRK Rosario, Argentina
| | - Enrique L Larghi
- Instituto de Química Rosario (IQUIR, CONICET-UNR) and Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, S2002LRK Rosario, Argentina
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Guo Y, Yao L, Luo L, Wang HX, Yang Z, Wang Z, Ai SL, Zhang Y, Zou QC, Zhang HL. Alkylaminomaleimide fluorophores: synthesis via air oxidation and emission modulation by twisted intramolecular charge transfer. Org Chem Front 2021. [DOI: 10.1039/d0qo01285h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A novel strategy to synthesize 3-alkylaminomaleimide fluorophores via air oxidation is developed, and the structural features for the designed TICT fluorophores with bright emission are established.
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8
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Jia Y, Chen L, Zhang H, Zheng Y, Jiang ZX, Yang Z. Electrophilic chloro(ω-alkoxy)lation of alkenes employing 1-chloro-1,2-benziodoxol-3-one: facile synthesis of β-chloroethers. Org Biomol Chem 2019; 16:7203-7213. [PMID: 30255191 DOI: 10.1039/c8ob01634h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A four-component reaction for electrophilic chloro(ω-alkoxy)lation of alkenes has been described. The stable chloro-iodine(iii) reagent and SOCl2 were used as electrophilic and nucleophilic chlorine sources, respectively. This approach provides a straightforward way to synthesize various useful β-chloro ω-chloroalkyl ethers from a wide range of alkenes, including electron-deficient, aromatic and unactivated alkenes. The synthetic applications of this approach were also explored in some useful transformations.
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Affiliation(s)
- Yimin Jia
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, P. R. China.
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Liang YX, Meng XH, Yang M, Mehfooz H, Zhao YL. Zn(OAc)2-catalyzed tandem cyclization of isocyanides, α-diazoketones, and anhydrides: a general route to polysubstituted maleimides. Chem Commun (Camb) 2019; 55:12519-12522. [DOI: 10.1039/c9cc05802h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A zinc-catalyzed three-component reaction of isocyanides, α-diazoketones, and anhydrides has been realized as a novel and efficient method for the synthesis of polysubstituted maleimides.
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Affiliation(s)
- Yong-Xin Liang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University
- Changchun 130024
- China
| | - Xiang-He Meng
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University
- Changchun 130024
- China
| | - Ming Yang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University
- Changchun 130024
- China
| | - Haroon Mehfooz
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University
- Changchun 130024
- China
| | - Yu-Long Zhao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University
- Changchun 130024
- China
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10
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Fan CL, Hu K, Wang JL, Hao XQ, Wei JJ, Song MP, Zheng C. Synthesis of quaternary succinimides promoted by Ferric Nitrate. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.11.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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11
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Kong DH, An YL, Shao ZY, Zhao SY. Copper-Catalysed Bromoamination of Maleimides using NBS as the Bromine Source. JOURNAL OF CHEMICAL RESEARCH 2018. [DOI: 10.3184/174751918x15359929315492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
CuBr2-catalysed bromoamination of maleimides has been achieved in THF with alkylamines and N-bromosuccinimide as nitrogen and bromine sources respectively. The reaction conditions were optimised. A series of bromoamination products such as 3-amino-4-bromomaleimides was synthesised with satisfactory yields. Furthermore, a plausible mechanism of the bromoamination of maleimides was discussed.
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Affiliation(s)
- De-Huan Kong
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P.R. China
| | - Yu-Long An
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P.R. China
| | - Zhi-Yu Shao
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P.R. China
| | - Sheng-Yin Zhao
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P.R. China
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12
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Dana S, Mandal A, Sahoo H, Baidya M. Ru(II)-Catalyzed C–H Functionalization on Maleimides with Electrophiles: A Demonstration of Umpolung Strategy. Org Lett 2017; 19:1902-1905. [DOI: 10.1021/acs.orglett.7b00674] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Suman Dana
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Anup Mandal
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Harekrishna Sahoo
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
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13
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Zhu Q, Ye Z, Yang W, Cai X, Tang BZ. One-Pot Synthesis and Structure–Property Relationship of Aminomaleimides: Fluorescence Efficiencies in Monomers and Aggregates Easily Tuned by Switch of Aryl and Alkyl. J Org Chem 2017; 82:1096-1104. [PMID: 28001426 DOI: 10.1021/acs.joc.6b02706] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Qiuhua Zhu
- School
of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, China
| | - Ziwei Ye
- School
of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, China
| | - Weijie Yang
- School
of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, China
| | - Xiaotie Cai
- School
of Pharmaceutical Sciences, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou 510515, China
| | - Ben Zhong Tang
- Department
of Chemistry, State Key Laboratory of Molecular Neuroscience, Institute
of Molecular Functional Materials, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon Hong Kong
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