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1
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Tu JL, Huang B. Titanium in photocatalytic organic transformations: current applications and future developments. Org Biomol Chem 2024; 22:6650-6664. [PMID: 39118484 DOI: 10.1039/d4ob01152j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
Titanium, as an important transition metal, has garnered extensive attention in both industry and academia due to its excellent mechanical properties, corrosion resistance, and unique reactivity in organic synthesis. In the field of organic photocatalysis, titanium-based compounds such as titanium dioxide (TiO2), titanocenes (Cp2TiCl2, CpTiCl3), titanium tetrachloride (TiCl4), tetrakis(isopropoxy)titanium (Ti(OiPr)4), and chiral titanium complexes have demonstrated distinct reactivity and selectivity. This review focuses on the roles of these titanium compounds in photocatalytic organic reactions, and highlights the reaction pathways such as photo-induced single-electron transfer (SET) and ligand-to-metal charge transfer (LMCT). By systematically surveying the latest advancements in titanium-involved organic photocatalysis, this review aims to provide references for further research and technological innovation within this fast-developing field.
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Affiliation(s)
- Jia-Lin Tu
- Faculty of Arts and Sciences, Beijing Normal University, Zhuhai 519085, China.
- School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
| | - Binbin Huang
- Faculty of Arts and Sciences, Beijing Normal University, Zhuhai 519085, China.
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2
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Liu Y, Lin S, Zhang D, Song B, Jin Y, Hao E, Shi L. Photochemical Nozaki-Hiyama-Kishi Coupling Enabled by Excited Hantzsch Ester. Org Lett 2022; 24:3331-3336. [PMID: 35412841 DOI: 10.1021/acs.orglett.2c00877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
This work reports the first photochemical Nozaki-Hiyama-Kishi coupling enabled by bioinspired Hantzsch ester. The salient feature of this process is that commercially available and low-cost organic photoactive Hantzsch ester can serve as both an electron and a proton donor to reduce Cr/Ni to low-valent species and hydrolyze the CrIII-alkoxy bond, thus bypassing the use of stoichiometric metallic reductants and additives such as TMSCl and Cp2ZrCl2. The mild conditions and operationally easy method showed broad compatibility with various alkenyl triflates and aldehydes, including electron-poor pentafluorobenzaldehyde which failed under previous conditions.
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Affiliation(s)
- Yonghong Liu
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, 116024, Dalian, China
| | - Shuangjie Lin
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, 116024, Dalian, China
| | - Dandan Zhang
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, 116024, Dalian, China
| | - Bingkun Song
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, 116024, Dalian, China
| | - Yunhe Jin
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, 116024, Dalian, China
| | - Erjun Hao
- School of Chemistry and Chemical Engineering, Henan Normal University, 453007, Xinxiang, China
| | - Lei Shi
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, 116024, Dalian, China.,School of Chemistry and Chemical Engineering, Henan Normal University, 453007, Xinxiang, China
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3
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Lin S, Chen Y, Yan H, Liu Y, Sun Y, Hao E, Shi C, Zhang D, Zhu N, Shi L. Activation of Chromium Catalysts by Photoexcited Hantzsch Ester for Decarboxylative Allylation of Aldehydes with Butadiene. Org Lett 2021; 23:8077-8081. [PMID: 34606288 DOI: 10.1021/acs.orglett.1c03098] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Metallaphotocatalysis often needs light-absorbing metal-polypyridyl complexes, semiconductors, or organic dyes, which can modify the oxidation state of metal catalysts. Here, we first report that photoexcitation of Hantzsch ester can directly activate chromium reagents through a single-electron transfer process. The synthetic application was demonstrated through a photoredox decarboxylative allylation of aldehydes with feedstock butadiene without exogenous photocatalysts, metallic reductants, or additives.
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Affiliation(s)
- Shuangjie Lin
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, China
| | - Yuqing Chen
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, China
| | - Huaipu Yan
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, China
| | - Yonghong Liu
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, China
| | - Yuchen Sun
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, China
| | - Erjun Hao
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Caizhe Shi
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, China
| | - Dandan Zhang
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, China
| | - Nan Zhu
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, China
| | - Lei Shi
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
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Sumiyama K, Toriumi N, Iwasawa N. Use of Isopropyl Alcohol as a Reductant for Catalytic Dehydoxylative Dimerization of Benzylic Alcohols Utilizing Ti−O Bond Photohomolysis. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100286] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Keiichi Sumiyama
- Department of Chemistry Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8551 Japan
| | - Naoyuki Toriumi
- Department of Chemistry Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8551 Japan
| | - Nobuharu Iwasawa
- Department of Chemistry Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8551 Japan
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5
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Shi C, Li F, Chen Y, Lin S, Hao E, Guo Z, Wosqa UT, Zhang D, Shi L. Photocatalytic Umpolung Synthesis of Nucleophilic π-Allylcobalt Complexes for Allylation of Aldehydes. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05330] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Caizhe Shi
- Zhang Dayu School of Chemistry, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Fusheng Li
- Zhang Dayu School of Chemistry, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Yuqing Chen
- Zhang Dayu School of Chemistry, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Shuangjie Lin
- Zhang Dayu School of Chemistry, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Erjun Hao
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Zhuowen Guo
- Zhang Dayu School of Chemistry, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Urwa Tul Wosqa
- Zhang Dayu School of Chemistry, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Dandan Zhang
- Zhang Dayu School of Chemistry, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Lei Shi
- Zhang Dayu School of Chemistry, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning 116024, China
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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6
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Li F, Lin S, Chen Y, Shi C, Yan H, Li C, Wu C, Lin L, Duan C, Shi L. Photocatalytic Generation of π‐Allyltitanium Complexes via Radical Intermediates. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010780] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Fusheng Li
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Shuangjie Lin
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Yuqing Chen
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Caizhe Shi
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Huaipu Yan
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Chenchen Li
- Frontier Institute of Science and Technology Xi'an Jiaotong University 710054 Xi'an China
| | - Chao Wu
- Frontier Institute of Science and Technology Xi'an Jiaotong University 710054 Xi'an China
| | - Luqing Lin
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Chunying Duan
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Lei Shi
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
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7
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Li F, Lin S, Chen Y, Shi C, Yan H, Li C, Wu C, Lin L, Duan C, Shi L. Photocatalytic Generation of π‐Allyltitanium Complexes via Radical Intermediates. Angew Chem Int Ed Engl 2020; 60:1561-1566. [DOI: 10.1002/anie.202010780] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Indexed: 01/05/2023]
Affiliation(s)
- Fusheng Li
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Shuangjie Lin
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Yuqing Chen
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Caizhe Shi
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Huaipu Yan
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Chenchen Li
- Frontier Institute of Science and Technology Xi'an Jiaotong University 710054 Xi'an China
| | - Chao Wu
- Frontier Institute of Science and Technology Xi'an Jiaotong University 710054 Xi'an China
| | - Luqing Lin
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Chunying Duan
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Lei Shi
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
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8
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Li F, Lin S, Chen Y, Shi C, Yan H, Li C, Wu C, Lin L, Duan C, Shi L. Photocatalytic Generation of π‐Allyltitanium Complexes via Radical Intermediates. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/anie.202010780 and 10.1002/ange.202010780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Fusheng Li
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Shuangjie Lin
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Yuqing Chen
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Caizhe Shi
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Huaipu Yan
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Chenchen Li
- Frontier Institute of Science and Technology Xi'an Jiaotong University 710054 Xi'an China
| | - Chao Wu
- Frontier Institute of Science and Technology Xi'an Jiaotong University 710054 Xi'an China
| | - Luqing Lin
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Chunying Duan
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
| | - Lei Shi
- Dalian University of Technology Zhang Dayu School of Chemistry State Key Laboratory of Fine Chemicals 116024 Dalian China
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