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Harabuchi Y, Hayashi H, Takano H, Mita T, Maeda S. Oxidation and Reduction Pathways in the Knowles Hydroamination via a Photoredox-Catalyzed Radical Reaction. Angew Chem Int Ed Engl 2023; 62:e202211936. [PMID: 36336664 DOI: 10.1002/anie.202211936] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Indexed: 11/09/2022]
Abstract
Systematic reaction path exploration revealed the entire mechanism of Knowles's light-promoted catalytic intramolecular hydroamination. Bond formation/cleavage competes with single electron transfer (SET) between the catalyst and substrate. These processes are described by adiabatic processes through transition states in an electronic state and non-radiative transitions through the seam of crossings (SX) between different electronic states. This study determined the energetically favorable SET path by introducing a practical computational model representing SET as non-adiabatic transitions via SXs between substrate's potential energy surfaces for different charge states adjusted based on the catalyst's redox potential. Calculations showed that the reduction and proton shuttle process proceeded concertedly. Also, the relative importance of SET paths (giving the product and leading back to the reactant) varies depending on the catalyst's redox potential, affecting the yield.
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Affiliation(s)
- Yu Harabuchi
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21, Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan.,JST, ERATO Maeda Artificial Intelligence in Chemical Reaction Design and Discovery Project, Kita 10, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan.,Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Hiroki Hayashi
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21, Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan.,JST, ERATO Maeda Artificial Intelligence in Chemical Reaction Design and Discovery Project, Kita 10, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Hideaki Takano
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21, Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan.,JST, ERATO Maeda Artificial Intelligence in Chemical Reaction Design and Discovery Project, Kita 10, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Tsuyoshi Mita
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21, Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan.,JST, ERATO Maeda Artificial Intelligence in Chemical Reaction Design and Discovery Project, Kita 10, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Satoshi Maeda
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21, Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan.,JST, ERATO Maeda Artificial Intelligence in Chemical Reaction Design and Discovery Project, Kita 10, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan.,Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan.,Research and Services Division of Materials Data and Integrated System (MaDIS), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0044, Japan
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Zhao B, Hammond GB, Xu B. Aromatic Ketone-Catalyzed Photochemical Synthesis of Imidazo-isoquinolinone Derivatives. J Org Chem 2021; 86:12851-12861. [PMID: 34436893 DOI: 10.1021/acs.joc.1c01486] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We have developed an efficient photocatalytic decarboxylative radical addition/cyclization strategy to synthesize imidazo-isoquinolinone derivatives using inexpensive aromatic ketone photocatalysts. This method not only tolerates a wide range of functional groups but also works well for both alkyl and aryl radicals.
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Affiliation(s)
- Bin Zhao
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Gerald B Hammond
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Bo Xu
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
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Lovett GH, Chen S, Xue XS, Houk KN, MacMillan DWC. Open-Shell Fluorination of Alkyl Bromides: Unexpected Selectivity in a Silyl Radical-Mediated Chain Process. J Am Chem Soc 2019; 141:20031-20036. [DOI: 10.1021/jacs.9b11434] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Gabrielle H. Lovett
- Merck Center for Catalysis, Princeton University, Princeton, New Jersey 08544, United States
| | - Shuming Chen
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Xiao-Song Xue
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - David W. C. MacMillan
- Merck Center for Catalysis, Princeton University, Princeton, New Jersey 08544, United States
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Xia Q, Tian H, Dong J, Qu Y, Li L, Song H, Liu Y, Wang Q. N
-Arylamines Coupled with Aldehydes, Ketones, and Imines by Means of Photocatalytic Proton-Coupled Electron Transfer. Chemistry 2018; 24:9269-9273. [DOI: 10.1002/chem.201801886] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 05/14/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Qing Xia
- State Key Laboratory of Elemento-Organic Chemistry; Research Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 P. R. China
| | - Hao Tian
- State Key Laboratory of Elemento-Organic Chemistry; Research Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 P. R. China
| | - Jianyang Dong
- State Key Laboratory of Elemento-Organic Chemistry; Research Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 P. R. China
| | - Yi Qu
- State Key Laboratory of Elemento-Organic Chemistry; Research Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 P. R. China
| | - Lili Li
- State Key Laboratory of Elemento-Organic Chemistry; Research Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 P. R. China
| | - Hongjian Song
- State Key Laboratory of Elemento-Organic Chemistry; Research Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 P. R. China
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry; Research Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 P. R. China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry; Research Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin 300071 P. R. China
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