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Jing B, Zhu C, Song H, Li J, Cui C. Ytterbium(II) Complex-Catalyzed Selective Single and Double Hydrophosphination of 1,3-Enynes. Chemistry 2024; 30:e202401234. [PMID: 38712548 DOI: 10.1002/chem.202401234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/06/2024] [Accepted: 05/06/2024] [Indexed: 05/08/2024]
Abstract
1,3-Enynes with conjugated alkene and alkyne moieties are attractive building blocks in synthetic chemistry. However, neither 4,1-hydrophosphination nor dihydrophosphination of 1,3-enynes has been reported. In this paper, the divalent ytterbium and calcium amide complexes supported by silaimine-functionalized cyclopentadienyl ligands (C5Me4-Si(L)=NR) were developed, which successfully catalyzed the efficient single and double hydrophosphination of 1,3-enynes with diarylphosphines. The hydrophosphination reactions selectively produced homoallenyl phosphines and (E)-propenylene diphosphines, respectively. This work demonstrated the potential of hemilabile silaimine-Cp ligands in the supporting the efficient and selective rare- and alkaline-earth catalysts.
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Affiliation(s)
- Bing Jing
- State Key Laboratory of Elemento-Organic Chemistry and Frontiers Science Center of Organic Matters, Nankai University, Tianjin, 300071, China
| | - Cheng Zhu
- State Key Laboratory of Elemento-Organic Chemistry and Frontiers Science Center of Organic Matters, Nankai University, Tianjin, 300071, China
| | - Haibin Song
- State Key Laboratory of Elemento-Organic Chemistry and Frontiers Science Center of Organic Matters, Nankai University, Tianjin, 300071, China
| | - Jianfeng Li
- State Key Laboratory of Elemento-Organic Chemistry and Frontiers Science Center of Organic Matters, Nankai University, Tianjin, 300071, China
| | - Chunming Cui
- State Key Laboratory of Elemento-Organic Chemistry and Frontiers Science Center of Organic Matters, Nankai University, Tianjin, 300071, China
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Salmeia KA, Afaneh AT, Habash RR, Neels A. Trivinylphosphine Oxide: Synthesis, Characterization, and Polymerization Reactivity Investigated Using Single-Crystal Analysis and Density Functional Theory. Molecules 2023; 28:6097. [PMID: 37630349 PMCID: PMC10459575 DOI: 10.3390/molecules28166097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/10/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023] Open
Abstract
Organophosphorus chemicals are versatile and important in industry. Trivinylphosphine oxide (TVPO), for example, exhibited a promising precursor as a flame-retardant additive for industrial applications. Density functional theory (DFT) simulations were used to explore the kinetic and thermodynamic chemical processes underlying the nucleophilic addition reactions of TVPO in order to better understand their polymerization mechanisms. An experimental X-ray single-crystal study of TVPO supported this work's theory based on its computed findings. TVPO was prepared using POCl3 and VMB in a temperature-dependent reaction. TVPO, the thermodynamically favourable product, is preferentially produced at low temperatures. The endothermic anionic addition polymerization reaction between TVPO and VMB begins when the reaction temperature rises. An implicit solvation model simulated TVPO and piperazine reactions in water, whereas a hybrid model modelled VMB interactions in tetrahydrofuran. The simulations showed a pseudo-Michael addition reaction mechanism with a four-membered ring transition state. The Michael addition reaction is analogous to this process.
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Affiliation(s)
- Khalifah A. Salmeia
- Department of Chemistry, Faculty of Science, Al-Balqa Applied University, Al-Salt 19117, Jordan;
- Laboratory for Advanced Fibers, Swiss Federal Laboratories for Materials Science and Technology (Empa), 9014 St. Gallen, Switzerland
| | - Akef T. Afaneh
- Department of Chemistry, Faculty of Science, Al-Balqa Applied University, Al-Salt 19117, Jordan;
| | - Reem R. Habash
- Department of Chemistry, Faculty of Science, Al-Balqa Applied University, Al-Salt 19117, Jordan;
| | - Antonia Neels
- Center for X-ray Analytics, Swiss Federal Laboratories for Materials Science and Technology (Empa), 8600 Dübendorf, Switzerland
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Kula K, Łapczuk A, Sadowski M, Kras J, Zawadzińska K, Demchuk OM, Gaurav GK, Wróblewska A, Jasiński R. On the Question of the Formation of Nitro-Functionalized 2,4-Pyrazole Analogs on the Basis of Nitrylimine Molecular Systems and 3,3,3-Trichloro-1-Nitroprop-1-Ene. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238409. [PMID: 36500503 PMCID: PMC9739753 DOI: 10.3390/molecules27238409] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 12/03/2022]
Abstract
Experimental and theoretical studies on the reaction between (E)-3,3,3-trichloro-1-nitroprop-1-ene and N-(4-bromophenyl)-C-arylnitrylimine were performed. It was found that the title process unexpectedly led to 1-(4-bromophenyl)-3-phenyl-5-nitropyrazole instead of the expected Δ2-pyrazoline molecular system. This was the result of a unique CHCl3 elimination process. The observed mechanism of transformation was explained in the framework of the molecular electron density theory (MEDT). The theoretical results showed that both of the possible channels of [3 + 2] cycloaddition were favorable from a kinetic point of view, due to which the creation of 1-(4-bromophenyl)-3-aryl-4-tricholomethyl-5-nitro-Δ2-pyrazoline was more probable. On the other hand, according to the experimental data, the presented reactions occurred with full regioselectivity.
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Affiliation(s)
- Karolina Kula
- Department of Organic Chemistry and Technology, Cracow University of Technology, Warszawska 24, 31-155 Krakow, Poland
- Correspondence: (K.K.); (A.Ł.); (R.J.)
| | - Agnieszka Łapczuk
- Department of Organic Chemistry and Technology, Cracow University of Technology, Warszawska 24, 31-155 Krakow, Poland
- Correspondence: (K.K.); (A.Ł.); (R.J.)
| | - Mikołaj Sadowski
- Department of Organic Chemistry and Technology, Cracow University of Technology, Warszawska 24, 31-155 Krakow, Poland
| | - Jowita Kras
- Department of Organic Chemistry and Technology, Cracow University of Technology, Warszawska 24, 31-155 Krakow, Poland
| | - Karolina Zawadzińska
- Department of Organic Chemistry and Technology, Cracow University of Technology, Warszawska 24, 31-155 Krakow, Poland
| | - Oleg M. Demchuk
- Faculty of Medicine, The John Paul II Catholic University of Lublin, Konstantynow 1J, 20-708 Lublin, Poland
| | - Gajendra Kumar Gaurav
- Sustainable Process Integration Laboratory—SPIL, NETME Centre, Faculty of Mechanical Engineering, Brno University of Technology—VUT Brno, Technická 2896/2, 616-69 Brno, Czech Republic
| | - Aneta Wróblewska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Radomir Jasiński
- Department of Organic Chemistry and Technology, Cracow University of Technology, Warszawska 24, 31-155 Krakow, Poland
- Correspondence: (K.K.); (A.Ł.); (R.J.)
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Zhang JQ, Ye JJ, Han LB. Selective P-C bond cleavage of tertiary phosphine boranes by sodium. PHOSPHORUS SULFUR 2021. [DOI: 10.1080/10426507.2021.1948851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Jian-Qiu Zhang
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Jing-Jing Ye
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Li-Biao Han
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
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On the Question of Stepwise [4+2] Cycloaddition Reactions and Their Stereochemical Aspects. Symmetry (Basel) 2021. [DOI: 10.3390/sym13101911] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Even at the end of the twentieth century, the view of the one-step [4+2] cycloaddition (Diels-Alder) reaction mechanism was widely accepted as the only possible one, regardless of the nature of the reaction components. Much has changed in the way these reactions are perceived since then. In particular, multi-step mechanisms with zwitterionic or diradical intermediates have been proposed for a number of processes. This review provided a critical analysis of such cases.
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Chrzanowski J, Krasowska D, Urbaniak M, Sieroń L, Pokora-Sobczak P, Demchuk OM, Drabowicz J. Synthesis of Enantioenriched Aryl-tert-Butylphenylphosphine Oxides via Cross-Coupling Reactions oftert-Butylphenylphosphine Oxide with Aryl Halides. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800698] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jacek Chrzanowski
- Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112 90-363 Lodz Poland
| | - Dorota Krasowska
- Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112 90-363 Lodz Poland
| | - Małgorzata Urbaniak
- Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112 90-363 Lodz Poland
| | - Lesław Sieroń
- Institute of General and Ecological Chemistry; Lodz University of Technology; Zeromskiego 116 90-924 Lodz Poland
| | - Patrycja Pokora-Sobczak
- Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112 90-363 Lodz Poland
| | - Oleg M. Demchuk
- Department of Organic Chemistry; Maria Curie-Sklodowska University; 33 Gliniana St. 20-614 Lublin Poland
| | - Józef Drabowicz
- Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112 90-363 Lodz Poland
- Department of Chemistry; Environmental Protection and Biotechnology; Jan Dlugosz University in Czestochowa; Armii Krajowej Ave. 13/15 42-200 Czestochowa Poland
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