1
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Yuan H, Xiao P, Zheng Y, Zhang J. DFT studies on the mechanism of Ag2
CO3
-catalyzed hydroazidation of unactivated terminal alkynes with TMS-N3
: An insight into the silver(I) activation mode. J Comput Chem 2017; 38:2289-2297. [DOI: 10.1002/jcc.24879] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 06/21/2017] [Indexed: 12/23/2022]
Affiliation(s)
- Haiyan Yuan
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry; Northeast Normal University; Renmin Street 5268# Changchun 130024 China
| | - Pin Xiao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry; Northeast Normal University; Renmin Street 5268# Changchun 130024 China
| | - Yiying Zheng
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry; Northeast Normal University; Renmin Street 5268# Changchun 130024 China
| | - Jingping Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry; Northeast Normal University; Renmin Street 5268# Changchun 130024 China
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2
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Yuan H, Zhang J. Mechanistic insights on DBU catalyzedβ-amination of nbs to chalcone driving by water: Multiple roles of water. J Comput Chem 2017; 38:438-445. [DOI: 10.1002/jcc.24700] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 12/01/2016] [Accepted: 12/01/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Haiyan Yuan
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Advanced Energy Materials Research Center, Faculty of Chemistry; Northeast Normal University; Renmin Street 5268# Changchun 130024 China
| | - Jingping Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Advanced Energy Materials Research Center, Faculty of Chemistry; Northeast Normal University; Renmin Street 5268# Changchun 130024 China
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3
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Liu J, Zheng Y, Liu Y, Yuan H, Zhang J. Mechanistic insight on (E)-methyl 3-(2-aminophenyl)acrylate cyclization reaction by multicatalysis of solvent and substrate. J Comput Chem 2016; 37:2386-94. [PMID: 27487815 DOI: 10.1002/jcc.24463] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 07/11/2016] [Accepted: 07/11/2016] [Indexed: 12/17/2022]
Abstract
The reaction mechanism of (E)-methyl 3-(2-aminophenyl)acrylate (A) with phenylisothiocyanate (B) as well as the vital roles of substrate A and solvent water were investigated under unassisted, water-assisted, substrate A-assisted, and water-A-assisted conditions. The reaction proceeds with four processes via nucleophilic addition, deprotonation and protonation, intramolecular cyclization with hydrogen transfer, and keto-enol tautomerization. According to the different H-shift mode, two possible types of H-shift P1 and P2 are carefully investigated to identify the most preferred pathway, differing in the NH2 group deprotonation and CH group of A protonation processes. It is found that substrate A and water not only act as reactant and solvent, but also as catalyst, proton shuttle, and stabilizer in effectively lowering the energy barrier. Therefore, the results demonstrate that the strong donating and accepting ability of NH2 group on A and the presence of bulk water are the keys to the title reaction proceed. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Jiahui Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Renmin Street 5268#, Changchun, 130024, China
| | - Yiying Zheng
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Renmin Street 5268#, Changchun, 130024, China
| | - Ying Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Renmin Street 5268#, Changchun, 130024, China
| | - Haiyan Yuan
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Renmin Street 5268#, Changchun, 130024, China.
| | - Jingping Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Renmin Street 5268#, Changchun, 130024, China.
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4
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Saddique FA, Zahoor AF, Faiz S, Naqvi SAR, Usman M, Ahmad M. Recent trends in ring opening of epoxides by amines as nucleophiles. SYNTHETIC COMMUN 2016. [DOI: 10.1080/00397911.2016.1170148] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | - Ameer Fawad Zahoor
- Institute of Chemistry, Government College University, Faisalabad, Pakistan
| | - Sadia Faiz
- Institute of Chemistry, Government College University, Faisalabad, Pakistan
| | | | - Muhammad Usman
- Institute of Chemistry, Government College University, Faisalabad, Pakistan
| | - Matloob Ahmad
- Institute of Chemistry, Government College University, Faisalabad, Pakistan
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5
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Xiao P, Yuan H, Liu J, Zheng Y, Bi X, Zhang J. Radical Mechanism of Isocyanide-Alkyne Cycloaddition by Multicatalysis of Ag2CO3, Solvent, and Substrate. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01703] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pin Xiao
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Haiyan Yuan
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Jianquan Liu
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Yiying Zheng
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xihe Bi
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Jingping Zhang
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
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6
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Yuan H, Zheng Y, Li B, Li W, Zhang J. The multieffects of DMF and DBU on the [5 + 1] benzannulation of nitroethane and α-alkenoyl ketene-(S,S)-acetals: Hydrogen bonding and electrostatic interactions. J Comput Chem 2015; 36:731-8. [DOI: 10.1002/jcc.23846] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 01/08/2015] [Accepted: 01/11/2015] [Indexed: 12/19/2022]
Affiliation(s)
- Haiyan Yuan
- Department of Chemistry; Northeast Normal University; Renmin Street 5268# Changchun 130024 China Fax: (+86) 431-85099521
| | - Yiying Zheng
- Department of Chemistry; Northeast Normal University; Renmin Street 5268# Changchun 130024 China Fax: (+86) 431-85099521
| | - Bo Li
- Department of Chemistry; Northeast Normal University; Renmin Street 5268# Changchun 130024 China Fax: (+86) 431-85099521
| | - Wenliang Li
- Department of Chemistry; Northeast Normal University; Renmin Street 5268# Changchun 130024 China Fax: (+86) 431-85099521
| | - Jingping Zhang
- Department of Chemistry; Northeast Normal University; Renmin Street 5268# Changchun 130024 China Fax: (+86) 431-85099521
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7
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Zuo YJ, Qu J. How does aqueous solubility of organic reactant affect a water-promoted reaction? J Org Chem 2014; 79:6832-9. [PMID: 25000435 DOI: 10.1021/jo500733v] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
It was widely reported that under the "on water" condition, various water-promoted organic reactions can proceed with very high speed. Thus, it is considered that the aqueous solubility of reactant is not an important issue in these reactions. Three types of water-promoted organic reactions were investigated in the current study to distinguish whether the reaction rate of an aqueous reaction was affected by the aqueous solubilities of the reactants. The results showed that, for a Diels-Alder reaction which was fast under the neat conditions, the aqueous solubilities of reactants had little influence on the reaction. However, for the reactions which proceeded slowly under the neat conditions, such as [2σ+2σ+2π] cycloaddition reactions and epoxide aminolysis reactions, the reactants with good aqueous solubilities proceeded fast in water. Poorly aqueous soluble reactants reacted slowly or did not react under the "on water" condition, and an appropriate amount of organic cosolvent was needed to make the reaction become efficient. This evidence suggested that for these two types of reactions, the dissolution of the reactants in water was required.
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Affiliation(s)
- Yi-Jie Zuo
- State Key Laboratory of Elemento-organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University , Tianjin 300071, China
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8
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Kommi DN, Kumar D, Seth K, Chakraborti AK. Protecting group-Free Concise Synthesis of (RS)/(S)-Lubeluzole. Org Lett 2013; 15:1158-61. [DOI: 10.1021/ol302601b] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Damodara N. Kommi
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S. A. S. Nagar, Punjab 160 062, India
| | - Dinesh Kumar
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S. A. S. Nagar, Punjab 160 062, India
| | - Kapileswar Seth
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S. A. S. Nagar, Punjab 160 062, India
| | - Asit K. Chakraborti
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S. A. S. Nagar, Punjab 160 062, India
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9
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Seth K, Roy SR, Pipaliya BV, Chakraborti AK. Synergistic dual activation catalysis by palladium nanoparticles for epoxide ring opening with phenols. Chem Commun (Camb) 2013; 49:5886-8. [DOI: 10.1039/c3cc42507j] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Zheng Y, Xiong T, Lv Y, Zhang J, Zhang Q. Investigation on the mechanism of water-assisted palladium-catalyzed benzylic C–H amination by N-fluorobenzenesulfonimide. Org Biomol Chem 2013; 11:7923-30. [DOI: 10.1039/c3ob41299g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Kumar D, Seth K, Kommi DN, Bhagat S, Chakraborti AK. Surfactant micelles as microreactors for the synthesis of quinoxalines in water: scope and limitations of surfactant catalysis. RSC Adv 2013. [DOI: 10.1039/c3ra41038b] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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12
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Xu ZB, Qu J. Hot Water-Promoted SN1 Solvolysis Reactions of Allylic and Benzylic Alcohols. Chemistry 2012; 19:314-23. [DOI: 10.1002/chem.201202886] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2012] [Indexed: 11/06/2022]
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13
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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.
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Affiliation(s)
- Haiyan Yuan
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
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14
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The magneto-structural correlation of two novel 1D antiferromagnetic chains with different magnetic behaviors. Polyhedron 2011. [DOI: 10.1016/j.poly.2011.02.045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Li B, Zhang J, Yong X, Li W, Zheng Y. The low spin Co(II) fragment with homoleptic 1,10-phenanthroline ligands: synthesis, structures, DFT investigations, and magnetic properties. Dalton Trans 2011; 40:4459-64. [PMID: 21416105 DOI: 10.1039/c0dt01640c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two complexes {[Co(II)(phen)(3)][Co(III)(phen)(CN)(4)](2)}·phen·11H(2)O (1) and [Co(II)(μ-CN)(2)(Co(III))(2)(phen)(4)(CN)(6)]·C(2)H(5)OH·2H(2)O (2) were synthesized with identical starting materials but with a different order of addition. Their crystal structures, spectroscopic analysis, DFT calculations, and investigations of their magnetic properties are reported herein. The X-ray diffraction studies reveal that complex 1 mainly consists of discrete [Co(II)(phen)(3)](2+) cations and [Co(III)(phen)(CN)(4)](-) anions, while complex 2 is dominantly comprised of discrete neutral V-shaped trinuclear units [Co(II)(μ-CN)(2)(Co(III))(2)(phen)(4)(CN)(6)]. The first low-spin Co(II) fragment with homoleptic 1,10-phenanthroline ligands in 1 is observed at room temperature, owing to charge transfer from the neighboring anion via adventitious contacts and anion-π interactions. This is verified by structures, detailed theoretical analyses concerning frontier molecular orbital energy differences and Mulliken charge variations of the N atoms within the Co(II)N(6) sphere, and magnetism. Meanwhile, these kinds of supramolecular interactions are not found in complex 2, so it shows the ordinary magnetic behavior of the high-spin Co(II) ion. Our investigations highlight that for quantitative comprehension of spin-state energetic ordering in transition metal complexes, the supramolecular interactions must be taken into account in addition to classical ligand field theory. Moreover, we find that the [Co(II)(phen)(3)](2+) dication is sensitive to its surroundings in the solid state, which is beneficial for magnetic adjustment for the further synthesis of tunable molecular magnets and spin crossover systems.
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Affiliation(s)
- Bo Li
- Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China
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