1
|
Han XD, Peng GL, Wang HB, Wu L, Fu JP, Tang ZS, Hu JW, Xiong W. Novel synthesis of fused spiro piperidone-cyclopropanes from cyclopropyl amides and electron-deficient alkenes. Org Biomol Chem 2021; 19:3191-3198. [PMID: 33885573 DOI: 10.1039/d1ob00214g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report here that a series of bridged O,O-ketal fused spiro piperidone-cyclopropane derivatives 3 can be constructed with excellent yields and good diastereoselectivity by the one-pot reaction of 1-acylcyclopropanecarboxamides 1 with electron-deficient alkene 2a (EWG = CHO) via the domino process involving [4 + 2] annulation/intermolecular electrophilic addition/intramolecular cyclization. Furthermore, reactions of 1 with 2b/2c (EWG = CN, COOMe), leading to spiro piperidone-cyclopropane derivatives 4 or 5 by base catalyst selection, were also presented.
Collapse
Affiliation(s)
- Xiao-Dan Han
- Department of Applied Chemistry, Jiang Xi Academic of Sciences, Nanchang, 330096, China.
| | | | | | | | | | | | | | | |
Collapse
|
2
|
Mizota I, Maeda M, Imoto K, Shimizu M. Synthesis of Tetramic Acid Derivatives via a Tandem Umpolung Alkylation/Reduction/Cyclization Reaction of γ-Hydrazono β-Ketoester. Org Lett 2020; 22:3079-3083. [PMID: 32227901 DOI: 10.1021/acs.orglett.0c00824] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient method for the one-pot synthesis of tetramic acid derivatives was developed utilizing tandem umpolung N-alkylation/reduction/cyclization of γ-hydrazono β-ketoester. By using this reaction as a key step, the total synthesis of the 3-spiro 7-hydroxamic acid tetralin which possesses an HDAC inhibitory activity was also achieved.
Collapse
Affiliation(s)
- Isao Mizota
- Department of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Mie 514-8507, Japan
| | - Miki Maeda
- Department of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Mie 514-8507, Japan
| | - Kiho Imoto
- Department of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Mie 514-8507, Japan
| | - Makoto Shimizu
- Department of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Mie 514-8507, Japan.,School of Energy Science and Engineering College, Nanjing Tech University, Nanjing 211816, Jiangsu Province, China
| |
Collapse
|
3
|
Ghosh S, Ghosh A, Riyajuddin S, Sarkar S, Chowdhury AH, Ghosh K, Islam SM. Silver Nanoparticles Architectured HMP as a Recyclable Catalyst for Tetramic Acid and Propiolic Acid Synthesis through CO
2
Capture at Atmospheric Pressure. ChemCatChem 2020. [DOI: 10.1002/cctc.201901461] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Swarbhanu Ghosh
- Department of ChemistryUniversity of Kalyani Kalyani Nadia 741235, W.B. India
| | - Aniruddha Ghosh
- Department of ChemistryUniversity of Kalyani Kalyani Nadia 741235, W.B. India
| | - Sk Riyajuddin
- Institute of Nano Science and Technology Mohali Punjab 160062 India
| | - Somnath Sarkar
- Department of ChemistryUniversity of Kalyani Kalyani Nadia 741235, W.B. India
| | | | - Kaushik Ghosh
- Institute of Nano Science and Technology Mohali Punjab 160062 India
| | - Sk. Manirul Islam
- Department of ChemistryUniversity of Kalyani Kalyani Nadia 741235, W.B. India
| |
Collapse
|
4
|
Tikhov RM, Kuznetsov NY. Construction of piperidine-2,4-dione-type azaheterocycles and their application in modern drug development and natural product synthesis. Org Biomol Chem 2020; 18:2793-2812. [DOI: 10.1039/d0ob00287a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The review surveys the existing routes to piperidine-2,4-dione-type heterocycles including derivatives with the most vital types of biological activity. This heterocyclic platform is ideal for the construction of modern drugs and natural products.
Collapse
Affiliation(s)
- Rabdan M. Tikhov
- A.N. Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow
- Russian Federation
| | - Nikolai Yu. Kuznetsov
- A.N. Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow
- Russian Federation
| |
Collapse
|
5
|
Zhan S, Yan C. Efficient Synthesis of Functionalized 6‐(2‐Oxoindolin‐3‐yl)‐5‐azaspiro[2.4]heptanes. ChemistrySelect 2019. [DOI: 10.1002/slct.201902785] [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)
- Shao‐Cong Zhan
- School of Chemistry & Chemical EngineeringYangzhou University Yangzhou 225002 China
| | - Chao‐Guo Yan
- School of Chemistry & Chemical EngineeringYangzhou University Yangzhou 225002 China
| |
Collapse
|
6
|
Yuan J, Deng B, Liang Y, Rao CB, Zhang R, Zhao Y, Dong D. PIFA/TEMPO‐Mediated Oxidative Cascade Cyclization of
α
‐[(
β
‐Amino)propenoyl]‐Alkylamides: Access to Polysubstituted 3,7‐Dihydrooxazolo[4,5‐
c
]pyridine‐2,4,6(5
H
)‐triones. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900741] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Jingwen Yuan
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Bicheng Deng
- Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of EducationJilin Normal University Changchun 130103 People's Republic of China
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Yongjiu Liang
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Chitturi Bhujanga Rao
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Rui Zhang
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Yanning Zhao
- Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of EducationJilin Normal University Changchun 130103 People's Republic of China
| | - Dewen Dong
- Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of EducationJilin Normal University Changchun 130103 People's Republic of China
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| |
Collapse
|
7
|
Ghosh S, Molla RA, Kayal U, Bhaumik A, Islam SM. Ag NPs decorated on a COF in the presence of DBU as an efficient catalytic system for the synthesis of tetramic acids via CO2 fixation into propargylic amines at atmospheric pressure. Dalton Trans 2019; 48:4657-4666. [DOI: 10.1039/c9dt00017h] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Ag NPs are decorated at the surface of a COF material TpPa-1 and the resulting Ag@TpPa-1 catalyzes efficiently for the synthesis of tetramic acids from a variety of propargylic amines using CO2 as reagent.
Collapse
Affiliation(s)
| | | | - Utpal Kayal
- School of Materials Science
- Indian Association for the Cultivation of Science
- India
| | - Asim Bhaumik
- School of Materials Science
- Indian Association for the Cultivation of Science
- India
| | | |
Collapse
|
8
|
Yuan J, Rao CB, Liang Y, Zhang R, Zhang Q, Hou L, Dong D. Copper‐Catalyzed Regioselective Oxidative Cycloamidation of
α
‐[(
β
‐Dimethylamino)propenoyl]‐Alkylamides: Synthetic Route to Substituted Pyrrolidine‐2,4‐diones. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801237] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Jingwen Yuan
- Key Laboratory of High Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
- University of the Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Chitturi Bhujanga Rao
- Key Laboratory of High Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Yongjiu Liang
- Key Laboratory of High Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Rui Zhang
- Key Laboratory of High Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Qian Zhang
- Key Laboratory of High Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Liman Hou
- Key Laboratory of High Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Dewen Dong
- Key Laboratory of High Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
- University of the Chinese Academy of Sciences Beijing 100049 People's Republic of China
| |
Collapse
|
9
|
Pan L, Dong J, Xie D, Li Y, Liu Q. Synthesis of 2-(Trifluoromethyl)-dibenzopyranones with Rhodium(III)-catalyzed Formal anti-Michael Addition as Key Step. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701511] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Ling Pan
- Department of Chemistry; Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Northeast Normal University; Changchun 130024 People's Republic of China
| | - Jinhuan Dong
- Department of Chemistry; Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Northeast Normal University; Changchun 130024 People's Republic of China
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong; Key Laboratory of Molecular and Nano Probes; Ministry of Education; Shandong Normal University; Jinan 250014 People's Republic of China
| | - Di Xie
- Department of Chemistry; Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Northeast Normal University; Changchun 130024 People's Republic of China
| | - Yifei Li
- Department of Chemistry; Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Northeast Normal University; Changchun 130024 People's Republic of China
| | - Qun Liu
- Department of Chemistry; Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Northeast Normal University; Changchun 130024 People's Republic of China
| |
Collapse
|
10
|
Mondal SK, Mandal A, Manna SK, Ali SA, Hossain M, Venugopal V, Jana A, Samanta S. Intramolecular macrolactonization, photophysical and biological studies of new class of polycyclic pyrrole derivatives. Org Biomol Chem 2017; 15:2411-2421. [DOI: 10.1039/c7ob00160f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Herein, we report an efficient synthesis of N-substituted pyrrole derivatives and their application to construct macrocyclic oxazocinone.
Collapse
Affiliation(s)
- Suresh Kumar Mondal
- Department of Chemistry
- Bidhannagar College
- Kolkata 700064
- India
- Department of Chemistry and Chemical Technology
| | - Arabinda Mandal
- Department of Chemistry
- Bidhannagar College
- Kolkata 700064
- India
| | - Susanta Kumar Manna
- Department of Chemistry
- Bidhannagar College
- Kolkata 700064
- India
- Department of Chemistry and Chemical Technology
| | - Sk Asraf Ali
- Department of Chemistry
- Bidhannagar College
- Kolkata 700064
- India
| | - Maidul Hossain
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721102
- India
| | - Vangala Venugopal
- Centre for Chemical Biology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
| | - Avijit Jana
- Centre for Chemical Biology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Division of Natural Product Chemistry
| | | |
Collapse
|
11
|
|
12
|
Qun Liu. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/anie.201510767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
13
|
Affiliation(s)
- Lin Zhang
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Jinhuan Dong
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xianxiu Xu
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Qun Liu
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| |
Collapse
|
14
|
Luo H, Pan L, Xu X, Liu Q. Friedel–Crafts Coupling of Electron-Deficient Benzoylacetones Tuned by Remote Electronic Effects. J Org Chem 2015; 80:8282-9. [DOI: 10.1021/acs.joc.5b01371] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hongmei Luo
- Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People’s Republic of China
| | - Ling Pan
- Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People’s Republic of China
| | - Xianxiu Xu
- Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People’s Republic of China
| | - Qun Liu
- Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People’s Republic of China
| |
Collapse
|
15
|
Lu H, Lin JB, Liu JY, Xu PF. One-Pot Asymmetric Synthesis of Quaternary Pyrroloindolones through a Multicatalytic N-Allylation/Hydroacylation Sequence. Chemistry 2014; 20:11659-63. [DOI: 10.1002/chem.201402947] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Indexed: 12/17/2022]
|
16
|
Deng JC, Kuo CW, Chuang SC. Nucleophilic conjugate 1,3-addition of phosphines to oligoynoates. Chem Commun (Camb) 2014; 50:10580-3. [DOI: 10.1039/c4cc02870h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
17
|
Ishida T, Kobayashi R, Yamada T. Novel method of tetramic acid synthesis: silver-catalyzed carbon dioxide incorporation into propargylic amine and intramolecular rearrangement. Org Lett 2014; 16:2430-3. [PMID: 24738940 DOI: 10.1021/ol500806u] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Tetramic acid derivatives have been studied as biologically active heterocycle structures for pharmaceutical or agricultural chemicals. Conventional preparative approaches often require highly functionalized starting materials and harsh heating conditions in basic media. The present report provides a conceptually new synthetic strategy for the synthesis of tetramic acid derivatives from easily available propargylic amines and carbon dioxide with a silver salt and DBU under mild reaction conditions.
Collapse
Affiliation(s)
- Tomonobu Ishida
- Department of Chemistry, Keio University , 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-5822, Japan
| | | | | |
Collapse
|
18
|
Liu X, Zhang L, Xu X, Wang S, Pan L, Zhang Q, Liu Q. Aerobic copper-catalyzed oxidative [6C+1C] annulation: an efficient route to seven-membered carbocycles. Chem Commun (Camb) 2014; 50:8764-7. [DOI: 10.1039/c4cc03095h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A copper-catalyzed aerobic tandem Michael addition–intramolecular radical cyclization–benzyl C(sp3)–H bond oxidation reaction of dicinnamoyl ketene dithioacetals and ethyl cyanoacetate was developed for the diastereoselective synthesis of seven-membered carbocycles.
Collapse
Affiliation(s)
- Xiao Liu
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
| | - Lingjuan Zhang
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
| | - Xianxiu Xu
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
| | - Shan Wang
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
| | - Ling Pan
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
| | - Qian Zhang
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
| | - Qun Liu
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
| |
Collapse
|
19
|
Li M, Lin S, Dong Z, Zhang X, Liang F, Zhang J. Organocatalyzed Anion Relay Leading to Functionalized 2,3-Dihydrofurans. Org Lett 2013; 15:3978-81. [DOI: 10.1021/ol401881n] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Mengru Li
- Department of Chemistry, and Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Shaoxia Lin
- Department of Chemistry, and Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Zhiyong Dong
- Department of Chemistry, and Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Xintong Zhang
- Department of Chemistry, and Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Fushun Liang
- Department of Chemistry, and Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Jingping Zhang
- Department of Chemistry, and Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China
| |
Collapse
|
20
|
Abstract
Ketene dithioacetals are versatile intermediates in organic synthesis. Extensive research, since the last decade, has given rise to new prospects in their chemistry. The objective of this review is twofold: first, to highlight the new prospects in the chemistry of functionalized ketene dithioacetals, and second, to provide an intrinsic link between ketene dithioacetal groups and a variety of other functional groups, which has brought out many new facts that will assist in future designs.
Collapse
Affiliation(s)
- Ling Pan
- Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, 130024, China
| | | | | |
Collapse
|
21
|
α(δ')-Michael addition of alkyl amines to dimethyl (E)-hex-2-en-4-ynedioate: synthesis of α,β-dehydroamino acid derivatives. Molecules 2013; 18:2611-22. [PMID: 23446918 PMCID: PMC6270175 DOI: 10.3390/molecules18032611] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Revised: 02/07/2013] [Accepted: 02/20/2013] [Indexed: 11/17/2022] Open
Abstract
The direct nucleophilic addition of alkyl amines to the α(δ')-carbon atom of dimethyl (E)-hex-2-en-4-ynedioate to generate α,β-dehydroamino acid derivatives is reported. Herein, we have studied the reactivity of various primary and secondary alkyl amines in the α-selective nucleophilic conjugate addition to conjugated dimethyl (E)-hex-2-en-4-ynedioate. The reaction with primary alkyl amines gives only the (2E,4E)-stereoisomer, while that with secondary alkyl amines gives the (2E,4E) and (2Z,4E)-stereoisomers of dimethyl (2-alkylamino)-muconic ester.
Collapse
|
22
|
Wang L, He W, Yu Z. Transition-metal mediated carbon–sulfur bond activation and transformations. Chem Soc Rev 2013; 42:599-621. [DOI: 10.1039/c2cs35323g] [Citation(s) in RCA: 445] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
23
|
Mao L, Li Y, Xiong T, Sun K, Zhang Q. Synthesis of Tetramic Acid Derivatives via Intramolecular sp3 C–H Amination Mediated by Hypervalent Iodine(III) Reagents/Brønsted Acids. J Org Chem 2012; 78:733-7. [DOI: 10.1021/jo302144w] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Lujia Mao
- Department
of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
| | - Yan Li
- Department
of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
| | - Tao Xiong
- Department
of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
| | - Kai Sun
- Department
of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
| | - Qian Zhang
- Department
of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
| |
Collapse
|
24
|
Yuan H, Zheng Y, Zhang J. Mechanism study of the intramolecular anti-Michael addition of N-alkylfurylacrylacetamides. J Org Chem 2012; 77:8744-9. [PMID: 22967167 DOI: 10.1021/jo3018796] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The mechanism of the intramolecular nucleophilic addition of N-alkylfurylacrylacetamides is investigated by density functional theory calculations. Three possible reaction pathways have been considered based on possible conformations of the same reactant, which undergoes three stages, including hydrogen elimination by the base NaH, followed by the nucleophilic addition of N(-) on C(α) (C(β)) via an anti-Michael (Michael) mechanism, and then proton transfer affords the final product Pr-5 (Pr-6). The pathway corresponding to the reactant with the most stable conformation is found to be the most favorable one. The rate-determining step of the intramolecular nucleophilic addition is the nucleophilic addition of N(-) on C(α) (C(β)) featuring a cyclic ring transition state. Solvent effects are considered at the B3LYP/6-31G(d,p) level in solvent DMSO, and the results suggest that the relative reaction trends are consistent with the gas-phase reaction. Furthermore, the difference of the energy barriers explains the origin of the regioselectivity of the experiment. Finally, the effects of the substituent on N1 and C(β) to the regioselectivity have been discussed.
Collapse
Affiliation(s)
- Haiyan Yuan
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | | | | |
Collapse
|
25
|
Li Y, Xu X, Xia C, Pan L, Liu Q. Dithiolane-Directed Tandem Oxidation/1,2-Benzyl Migration of Tetramic Acids under Ambient Conditions. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200096] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
26
|
Li Y, Xu X, Xia C, Zhang L, Pan L, Liu Q. Double nucleophilic attack on isocyanide carbon: a synthetic strategy for 7-aza-tetrahydroindoles. Chem Commun (Camb) 2012; 48:12228-30. [DOI: 10.1039/c2cc35896d] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
27
|
Lin S, Wei Y, Liang F, Zhao B, Liu Y, Liu P. Multi-component anion relay cascade of 1-acetylcyclopropanecarboxamides, aldehydes and acrylonitrile: access to biscyanoethylated furo[3,2-c]pyridinones. Org Biomol Chem 2012; 10:4571-6. [DOI: 10.1039/c2ob25550b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
28
|
Deng JC, Chuang SC. Three-Component and Nonclassical Reaction of Phosphines with Enynes and Aldehydes: Formation of γ-Lactones Featuring α-Phosphorus Ylides. Org Lett 2011; 13:2248-51. [DOI: 10.1021/ol200527t] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jie-Cheng Deng
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan, ROC 30010
| | - Shih-Ching Chuang
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan, ROC 30010
| |
Collapse
|
29
|
Li Y, Xu X, Tan J, Xia C, Zhang D, Liu Q. Double Isocyanide Cyclization: A Synthetic Strategy for Two-Carbon-Tethered Pyrrole/Oxazole Pairs. J Am Chem Soc 2011; 133:1775-7. [DOI: 10.1021/ja110864t] [Citation(s) in RCA: 142] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yifei Li
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xianxiu Xu
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Jing Tan
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Chunyu Xia
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Dawei Zhang
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Qun Liu
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| |
Collapse
|
30
|
Liu J, Lin S, Ding H, Wei Y, Liang F. Domino reaction of arylaldehydes and 1-acetylcyclopropanecarboxamides: one-pot access to highly functionalized spiropiperidine-2,4-diones. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.09.133] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
31
|
Yuan H, Wang M, Liu Y, Wang L, Liu J, Liu Q. Unexpected Hydrobromic Acid-Catalyzed CC Bond-Forming Reactions and Facile Synthesis of Coumarins and Benzofurans Based on Ketene Dithioacetals. Chemistry 2010; 16:13450-7. [DOI: 10.1002/chem.201002107] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|