1
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Thangalipalli S, Neella CK. [DMAPBr] +Br -; A New Specific Electrophilic Bromine Transfer Reagent for Highly Ring Activated Aromatic Compounds in Water. ORG PREP PROCED INT 2022. [DOI: 10.1080/00304948.2022.2124820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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2
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Liu T, Han L, Zhang J, Lu G. Multiple Reaction Pathways of Eight-Membered Rhodacycles in Rh-Catalyzed Annulations of 2-Alkenyl Phenols/Anilides with Alkynes. J Org Chem 2021; 86:10484-10491. [PMID: 34313437 DOI: 10.1021/acs.joc.1c01143] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Density functional theory calculations were performed to study the competing pathways of rhodacycle intermediates generated in Rh(III)-catalyzed annulations of 2-alkenyl phenols and 2-alkenyl anilides with alkynes. The results show that the multiple pathways of eight-membered rhodacycles can be subtly tuned to give specific cyclic products. The seven-membered oxacyclic and spirocyclic products from 2-alkenyl phenols are formed by favoring the pathway of dissociating the Rh-O bond of O-contained rhodacycles, which are followed by antarafacial nucleophilic attack. The indoline product from 2-alkenyl anilides is generated through the pathway of intramolecular olefin migratory insertion of the N-contained rhodacycle.
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Affiliation(s)
- Tao Liu
- School of Chemistry, Chemical Engineering and Materials, Jining University, Qufu, Shandong 273155, China
| | - Lingli Han
- School of Chemistry, Chemical Engineering and Materials, Jining University, Qufu, Shandong 273155, China
| | - Jing Zhang
- School of Chemistry, Chemical Engineering and Materials, Jining University, Qufu, Shandong 273155, China
| | - Gang Lu
- School of Chemistry and Chemical Engineering, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, Shandong 250100, China
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3
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Synergistic Dinuclear Rhodium Induced Rhodium-Walking Enabling Alkene Terminal Arylation: A Theoretical Study. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05554] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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4
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Liu S, Zhu L, Zhang T, Zhong K, Li SJ, Bai R, Lan Y. How Solvents Control the Chemoselectivity in Rh-Catalyzed Defluorinated [4 + 1] Annulation. Org Lett 2021; 23:1489-1494. [PMID: 33565315 DOI: 10.1021/acs.orglett.1c00223] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Density functional theory calculations have been performed to reveal the chemoselectivity of Rh-catalyzed chiral C-F cleavage and γ-site functionalization. We found that the chemoselectivity is controlled by β-F elimination in methanol solvent, leading to formation of the alkynylic product. In isobutyronitrile solvent, the chemoselectivity is controlled by the allene insertion step, where the fluoroalkenylic product can be observed. The difference can be explained by analysis of the explicit solvent models.
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Affiliation(s)
- Shihan Liu
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, China
| | - Lei Zhu
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, China
| | - Tao Zhang
- Green Catalysis Center and College of Chemistry Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Kangbao Zhong
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, China
| | - Shi-Jun Li
- Green Catalysis Center and College of Chemistry Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Ruopeng Bai
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, China
| | - Yu Lan
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, China.,Green Catalysis Center and College of Chemistry Zhengzhou University, Zhengzhou, Henan 450001, China
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5
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Xu M, Xia Y. Mechanistic Understanding of Rh(III)-Catalyzed Redox-Neutral C—H Activation/Annulation Reactions of N-Phenoxyacetamides and Methyleneoxetanones. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202103054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Guzmán Santiago AJ, Brown CA, Sommer RD, Ison EA. Identification of key functionalization species in the Cp*Ir(III)-catalyzed- ortho halogenation of benzamides. Dalton Trans 2020; 49:16166-16174. [PMID: 32300762 DOI: 10.1039/d0dt00565g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cp*Ir(iii) complexes have been shown to be effective for the halogenation of N,N-diisopropylbenzamides with N-halosuccinimide as a suitable halogen source. The optimized conditions for the iodination reaction consist of 0.5 mol% [Cp*IrCl2]2 in 1,2-dichloroethane at 60 °C for 1 h to form a variety of iodinated benzamides in high yields. Increasing the catalyst loading to 6 mol% and the time to 4 h enabled the bromination reaction of the same substrates. Reactivity was not observed for the chlorination of these substrates. A variety of functional groups on the para-position of the benzamide were well tolerated. Kinetic studies showed the reaction dependence is first order in iridium, positive order in benzamide, and zero order in N-iodosuccinimide. A KIE of 2.5 was obtained from an independent H/D kinetic isotope effect study. Computational studies (DFT-BP3PW91) indicate that a CMD mechanism is more likely than an oxidative addition pathway for the C-H bond activation step. The calculated functionalization step involves an Ir(v) species that is the result of oxidative addition of acetate hypoiodite that is generated in situ from N-iodosuccinimide and acetic acid.
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Affiliation(s)
- Alexis J Guzmán Santiago
- Department of Chemistry, North Carolina State University, 2620 Yarborough Drive, Raleigh, North Carolina 27695-8204, USA.
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7
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Luo Y, Shan C, Liu S, Zhang T, Zhu L, Zhong K, Bai R, Lan Y. Oxidative Addition Promoted C–C Bond Cleavage in Rh-Mediated Cyclopropenone Activation: A DFT Study. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03361] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Yixin Luo
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, China
| | - Chunhui Shan
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, China
| | - Song Liu
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, China
| | - Tao Zhang
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, China
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Lei Zhu
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, China
| | - Kangbao Zhong
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, China
| | - Ruopeng Bai
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, China
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, China
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
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8
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Shao H, Wang X, Wang Y, Yue Y, Wang K, Tang Q, Zhuo K, Liu J. BF
3
⋅Et
2
O‐Promoted Aerobic Bromination of Heteroarenes with LiBr as the Bromination Sources. ChemistrySelect 2019. [DOI: 10.1002/slct.201902492] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Huibin Shao
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and ReactionsMinistry of Education, School of Chemistry and Chemical EngineeringHenan Normal University, Xinxiang Henan 453007 P. R. China
| | - Xiaopei Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and ReactionsMinistry of Education, School of Chemistry and Chemical EngineeringHenan Normal University, Xinxiang Henan 453007 P. R. China
| | - Yanyan Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and ReactionsMinistry of Education, School of Chemistry and Chemical EngineeringHenan Normal University, Xinxiang Henan 453007 P. R. China
| | - Yuanyuan Yue
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and ReactionsMinistry of Education, School of Chemistry and Chemical EngineeringHenan Normal University, Xinxiang Henan 453007 P. R. China
| | - Ke Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and ReactionsMinistry of Education, School of Chemistry and Chemical EngineeringHenan Normal University, Xinxiang Henan 453007 P. R. China
| | - Qinghu Tang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and ReactionsMinistry of Education, School of Chemistry and Chemical EngineeringHenan Normal University, Xinxiang Henan 453007 P. R. China
| | - Kelei Zhuo
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and ReactionsMinistry of Education, School of Chemistry and Chemical EngineeringHenan Normal University, Xinxiang Henan 453007 P. R. China
| | - Jianming Liu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and ReactionsMinistry of Education, School of Chemistry and Chemical EngineeringHenan Normal University, Xinxiang Henan 453007 P. R. China
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9
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Li Y, Chen H, Qu LB, Houk KN, Lan Y. Origin of Regiochemical Control in Rh(III)/Rh(V)-Catalyzed Reactions of Unsaturated Oximes and Alkenes to Form Pyrdines. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02085] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yingzi Li
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
- Department of Chemistry and Biochemistry, University of California—Los Angeles, Los Angeles, California 90095-1569, United States
| | - Haohua Chen
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, P. R. China
| | - Ling-Bo Qu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California—Los Angeles, Los Angeles, California 90095-1569, United States
| | - Yu Lan
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 400030, P. R. China
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10
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Zhang T, Liu S, Zhu L, Liu F, Zhong K, Zhang Y, Bai R, Lan Y. Theoretical study of FMO adjusted C-H cleavage and oxidative addition in nickel catalysed C-H arylation. Commun Chem 2019. [DOI: 10.1038/s42004-019-0132-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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11
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Zhang J, Shan C, Zhang T, Song J, Liu T, Lan Y. Computational advances aiding mechanistic understanding of silver-catalyzed carbene/nitrene/silylene transfer reactions. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2018.12.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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12
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Hu B, Jiang YY, Liu P, Zhang RX, Zhang Q, Liu TT, Bi S. The mechanism and structure–activity relationship of amide bond formation by silane derivatives: a computational study. Org Biomol Chem 2019; 17:9232-9242. [DOI: 10.1039/c9ob01605h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The detailed reaction mechanism and structure–activity relationship of substrates in silane reagent-mediated amide bond formation reactions are clarified.
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Affiliation(s)
- Ben Hu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Yuan-Ye Jiang
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Peng Liu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Rui-Xue Zhang
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Qi Zhang
- Institute of Industry & Equipment Technology
- Hefei University of Technology
- Hefei 230009
- People's Republic of China
| | - Tian-Tian Liu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Siwei Bi
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
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13
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Shan C, Zhu L, Qu LB, Bai R, Lan Y. Mechanistic view of Ru-catalyzed C-H bond activation and functionalization: computational advances. Chem Soc Rev 2018; 47:7552-7576. [PMID: 30182110 DOI: 10.1039/c8cs00036k] [Citation(s) in RCA: 168] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Ru-Catalyzed aromatic C-H bond activation and functionalization have emerged as important topics because they have resulted in remarkable progress in organic synthesis. Both experimental and theoretical studies of their mechanisms are important for the design of new synthetic methodologies. In this review, a mechanistic view of the Ru-mediated C-H bond cleavage step is first given to reveal the C-H bond activation modes, including oxidative addition, metathesis and base-assisted deprotonation. In this process, directing groups play an important role in determining the reactivity of the C-H bond. The C-H bond activation generally leads to the formation of a Ru-C bond, which is further functionalized in the subsequent steps. The mechanisms of Ru-catalyzed arylation, alkylation, and alkenylation of arenes are summarized, and these transformations can be categorized into cross-coupling with electrophiles or oxidative coupling with nucleophiles. In addition, the mechanism of ortho-ruthenation-enabled remote C-H bond functionalization is also discussed.
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Affiliation(s)
- Chunhui Shan
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
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14
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Hu L, Chen H. Comparative computational study on C-C/C-N/C-Br bond formations in Rh(III)-catalyzed C-H functionalizations: Stepwise versus concerted mechanisms. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.02.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Counterion effect and directing group effect in Rh-mediated C H bond activation processes: A theoretical study. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.03.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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16
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Yin Y, Yue X, Zhong Q, Jiang H, Bai R, Lan Y, Zhang H. Ni-Catalyzed C−F Bond Functionalization of Unactivated Aryl Fluorides and Corresponding Coupling with Oxazoles. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701506] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Youzhi Yin
- College of Chemistry; Nanchang University; 999 Xuefu Avenue Nanchang 330031 People's Republic of China
| | - Xiaoyu Yue
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing 400030 People's Republic of China
| | - Qi Zhong
- College of Chemistry; Nanchang University; 999 Xuefu Avenue Nanchang 330031 People's Republic of China
| | - Hanmin Jiang
- College of Chemistry; Nanchang University; 999 Xuefu Avenue Nanchang 330031 People's Republic of China
| | - Ruopeng Bai
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing 400030 People's Republic of China
| | - Yu Lan
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing 400030 People's Republic of China
| | - Hua Zhang
- College of Chemistry; Nanchang University; 999 Xuefu Avenue Nanchang 330031 People's Republic of China
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17
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Xie P, Jia M, Xu XH, Chen F, Xia Y. Mechanistic DFT Study on Rhodium(III)-Catalyzed Double C−H Activation for Oxidative Annulations of 2-Substituted Imidazoles and Alkynes. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201700625] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Peipei Xie
- College of Chemistry and Materials Engineering; Wenzhou University; Wenzhou 325035 China
| | - Mengmeng Jia
- College of Chemistry and Materials Engineering; Wenzhou University; Wenzhou 325035 China
| | - Xiao-Hua Xu
- College of Mathematics, Physics and Electronic Information Engineering; Wenzhou University; Wenzhou 325035 China
| | - Fan Chen
- College of Chemistry and Materials Engineering; Wenzhou University; Wenzhou 325035 China
| | - Yuanzhi Xia
- College of Chemistry and Materials Engineering; Wenzhou University; Wenzhou 325035 China
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18
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Ni SF, Zhang P, Chu CQ, Qin P, Dang L. Computational Studies on the Mechanism of Rh-Catalyzed Decarbonylative [5+2-1] Reaction between Isatins and Alkynes: High Selectivity by Directing Group. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701475] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shao-Fei Ni
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province; Shantou University; 515063 Guangdong P. R. China
| | - Pan Zhang
- Department of Chemistry in; Southern University of Science and Technology; 518055 Shenzhen P. R. China
| | - Chang-qing Chu
- Department of Chemistry in; Southern University of Science and Technology; 518055 Shenzhen P. R. China
| | - Peng Qin
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province; Shantou University; 515063 Guangdong P. R. China
| | - Li Dang
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province; Shantou University; 515063 Guangdong P. R. China
- Department of Chemistry in; Southern University of Science and Technology; 518055 Shenzhen P. R. China
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19
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Shan C, Zhong K, Qi X, Xu D, Qu LB, Bai R, Lan Y. Long distance unconjugated agostic-assisted 1,5-H shift in a Ru-mediated Alder-ene type reaction: mechanism and stereoselectivity. Org Chem Front 2018. [DOI: 10.1039/c8qo00699g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A long distance unconjugated novel 1,5-H shift mechanism for a Ru-catalyzed Alder-ene type alkene–alkyne coupling reaction was examined by DFT.
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Affiliation(s)
- Chunhui Shan
- Postdoctoral Station of Biomedical Engineering
- Chongqing University
- Chongqing 400030
- China
| | - Kangbao Zhong
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- China
| | - Xiaotian Qi
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- China
| | - Dongdong Xu
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- China
| | - Ling-Bo Qu
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Ruopeng Bai
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- China
| | - Yu Lan
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- China
- College of Chemistry and Molecular Engineering
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20
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Liu S, Qi X, Qu LB, Bai R, Lan Y. C–H bond cleavage occurring on a Rh(v) intermediate: a theoretical study of Rh-catalyzed arene azidation. Catal Sci Technol 2018. [DOI: 10.1039/c7cy02367g] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Our theoretical calculations indicated that the oxidation of Rh(iii) to Rh(v) by PhI(OAc)OTs is a facile process. Subsequent electrophilic deprotonation was shown to occur from a Rh(v) intermediate rather than a Rh(iii) intermediate.
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Affiliation(s)
- Song Liu
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- China
| | - Xiaotian Qi
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- China
| | - Ling-Bo Qu
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Ruopeng Bai
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- China
| | - Yu Lan
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- China
- College of Chemistry and Molecular Engineering
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21
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Satkar Y, Ramadoss V, Nahide PD, García-Medina E, Juárez-Ornelas KA, Alonso-Castro AJ, Chávez-Rivera R, Jiménez-Halla JOC, Solorio-Alvarado CR. Practical, mild and efficient electrophilic bromination of phenols by a new I(iii)-based reagent: the PIDA–AlBr3system. RSC Adv 2018; 8:17806-17812. [PMID: 35542081 PMCID: PMC9080473 DOI: 10.1039/c8ra02982b] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 05/03/2018] [Indexed: 11/21/2022] Open
Abstract
A practical electrophilic bromination procedure for the phenolic core was developed under efficient and very mild reaction conditions. The new I(iii)-based brominating reagentPhIOAcBroperationally easy to prepare by mixing PIDA and AlBr3was used.
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Affiliation(s)
- Yuvraj Satkar
- Universidad de Guanajuato
- Departamento de Química
- División de Ciencias Naturales y Exactas
- Guanajuato
- México
| | - Velayudham Ramadoss
- Universidad de Guanajuato
- Departamento de Química
- División de Ciencias Naturales y Exactas
- Guanajuato
- México
| | - Pradip D. Nahide
- Universidad de Guanajuato
- Departamento de Química
- División de Ciencias Naturales y Exactas
- Guanajuato
- México
| | - Ernesto García-Medina
- Universidad de Guanajuato
- Departamento de Química
- División de Ciencias Naturales y Exactas
- Guanajuato
- México
| | - Kevin A. Juárez-Ornelas
- Universidad de Guanajuato
- Departamento de Química
- División de Ciencias Naturales y Exactas
- Guanajuato
- México
| | - Angel J. Alonso-Castro
- Universidad de Guanajuato
- Departamento de Farmacia
- División de Ciencias Naturales y Exactas
- Guanajuato
- México
| | - Ruben Chávez-Rivera
- Universidad Michoacana de San Nicolás de Hidalgo
- Facultad de Químico Farmacobiología
- Morelia
- México
| | - J. Oscar C. Jiménez-Halla
- Universidad de Guanajuato
- Departamento de Química
- División de Ciencias Naturales y Exactas
- Guanajuato
- México
| | - César R. Solorio-Alvarado
- Universidad de Guanajuato
- Departamento de Química
- División de Ciencias Naturales y Exactas
- Guanajuato
- México
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22
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Yue X, Shan C, Qi X, Luo X, Zhu L, Zhang T, Li Y, Li Y, Bai R, Lan Y. Insights into disilylation and distannation: sequence influence and ligand/steric effects on Pd-catalyzed difunctionalization of carbenes. Dalton Trans 2018; 47:1819-1826. [DOI: 10.1039/c7dt04084a] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Density functional theory (DFT) calculation has been used to reveal the mechanism of Pd-catalyzed disilylation of carbene, which is a pathway to construct disilylmethane derivatives.
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Affiliation(s)
- Xiaoyu Yue
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- P. R. China
| | - Chunhui Shan
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- P. R. China
| | - Xiaotian Qi
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- P. R. China
| | - Xiaoling Luo
- College of Chemistry
- Chongqing Normal University
- Chongqing 400030
- P. R. China
| | - Lei Zhu
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- P. R. China
| | - Tao Zhang
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- P. R. China
| | - Yuanyuan Li
- School of Biological and Chemical Engineering
- Chongqing University of Education
- Chongqing 400067
- P. R. China
| | - Yingzi Li
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- P. R. China
| | - Ruopeng Bai
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- P. R. China
| | - Yu Lan
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- P. R. China
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23
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Vásquez-Céspedes S, Wang X, Glorius F. Plausible Rh(V) Intermediates in Catalytic C–H Activation Reactions. ACS Catal 2017. [DOI: 10.1021/acscatal.7b03048] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Suhelen Vásquez-Céspedes
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Xiaoming Wang
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
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24
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Qi X, Li Y, Bai R, Lan Y. Mechanism of Rhodium-Catalyzed C-H Functionalization: Advances in Theoretical Investigation. Acc Chem Res 2017; 50:2799-2808. [PMID: 29112396 DOI: 10.1021/acs.accounts.7b00400] [Citation(s) in RCA: 174] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Transition-metal-catalyzed cross-coupling has emerged as an effective strategy for chemical synthesis. Within this area, direct C-H bond transformation is one of the most efficient and environmentally friendly processes for the construction of new C-C or C-heteroatom bonds. Over the past decades, rhodium-catalyzed C-H functionalization has attracted considerable attention because of the versatility and wide use of rhodium catalysts in chemistry. A series of C-X (X = C, N, or O) bond formation reactions could be realized from corresponding C-H bonds using rhodium catalysts. Various experimental studies on rhodium-catalyzed C-H functionalization reactions have been reported, and in tandem, mechanistic and computational studies have also progressed significantly. Since 2012, our group has performed theoretical studies to reveal the mechanism of rhodium-catalyzed C-H functionalization reactions. We have studied the changes in the oxidation state of rhodium and compared the Rh(I)/Rh(III) catalytic cycle to the Rh(III)/Rh(V) catalytic cycle using density functional theory calculation. The development of advanced computational methods and improvements in computing power make theoretical calculation a powerful tool for the mechanistic study of rhodium chemistry. Computational study is able to not only provide mechanistic insights but also explain the origin of regioselectivity, enantioselectivity, and stereoselectivity in rhodium-catalyzed C-H functionalization reactions. This Account summarizes our computational work on rhodium-catalyzed C-H functionalization reactions. The mechanistic study under discussion is divided into three main parts: C-H bond cleavage step, transformation of the C-Rh bond, and regeneration of the active catalyst. In the C-H bond cleavage step, computational results of four possible mechanisms, including concerted metalation-deprotonation (CMD), oxidative addition (OA), Friedel-Crafts-type electrophilic aromatic substitution (SEAr), and σ-complex assisted metathesis (σ-CAM) are discussed. Subsequent transformation of the C-Rh bond, for example, via insertion of CO, olefin, alkyne, carbene, or nitrene, constructs new C-C or C-heteroatom bonds. For the regeneration of the active catalyst, reductive elimination of a high-valent rhodium complex and protonation of the C-Rh bond are emphasized as potential mechanism candidates. In addition to detailing the reaction pathway, the regioselectivity and diastereoselectivity of rhodium-catalyzed C-H functionalization reactions are also commented upon in this Account. The origin of the selectivity is clarified through theoretical analysis. Furthermore, we summarize and compare the changes in the oxidation state of rhodium along the complete reaction pathway. The work described in this Account demonstrates that rhodium catalysis might proceed via Rh(I)/Rh(III), Rh(II)/Rh(IV), Rh(III)/Rh(V), or non-redox-Rh(III) catalytic cycles.
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Affiliation(s)
- Xiaotian Qi
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
| | - Yingzi Li
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
| | - Ruopeng Bai
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
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25
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Wu W, Ren D, Xu B, Ma X, Huang C, Zhang J, Liu T. Mechanistic Investigation into RhIII
-Catalyzed Intramolecular Redox-Neutral Annulation of Aryl Hydrazines with a Tethered Alkyne. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700469] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Weirong Wu
- Department of Chemistry and Chemical Engineering; Jining University; Qufu 273155 Shandong China
| | - Dongcheng Ren
- Department of Chemistry and Chemical Engineering; Jining University; Qufu 273155 Shandong China
| | - Benzhen Xu
- Department of Chemistry and Chemical Engineering; Jining University; Qufu 273155 Shandong China
| | - Xiaoying Ma
- Department of Chemistry and Chemical Engineering; Jining University; Qufu 273155 Shandong China
| | - Caiyun Huang
- Department of Chemistry and Chemical Engineering; Jining University; Qufu 273155 Shandong China
| | - Jing Zhang
- Department of Chemistry and Chemical Engineering; Jining University; Qufu 273155 Shandong China
| | - Tao Liu
- Department of Chemistry and Chemical Engineering; Jining University; Qufu 273155 Shandong China
- School of Chemistry and Chemical Engineering; Qufu Normal University; Qufu 273165 Shandong China
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