1
|
Saha N, Wanjari PJ, Dubey G, Mahawar N, Bharatam PV. Metal-free synthesis of imidazoles and 2-aminoimidazoles. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
2
|
Sunagawa S, Morisaki F, Baba T, Tsubouchi A, Yoshimura A, Miyamoto K, Uchiyama M, Saito A. In Situ Generation of N-Triflylimino-λ 3-iodanes: Application to Imidation of Phosphines and Catalytic α-Amidation of 1,3-Dicarbonyl Compounds. Org Lett 2022; 24:5230-5234. [PMID: 35822905 DOI: 10.1021/acs.orglett.2c02264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We describe the imidation of phosphines and α-amidation of 1,3-dicarbonyl compounds using N-triflylimino-λ3-iodane, which is generated in situ from iodosylarene and triflylamide without any other additives. Furthermore, the imino-λ3-iodane catalytically generated from an iodoarene precatalyst with oxone and triflylamide promotes α-amidation of 1,3-dicarbonyl compounds, representing the first method catalyzed by imino-λ3-iodane.
Collapse
Affiliation(s)
- Shun Sunagawa
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Fumiya Morisaki
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Takafumi Baba
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Akira Tsubouchi
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Akira Yoshimura
- Faculty of Pharmaceutical Sciences, Aomori University, 2-3-1 Kobata, Aomori 030-0943, Japan
| | - Kazunori Miyamoto
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.,Research Initiative for Supra-Materials (RISM), Shinshu University, Ueda 386-8567, Japan
| | - Akio Saito
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| |
Collapse
|
3
|
Kimura T, Hamada S, Furuta T, Takemoto Y, Kobayashi Y. N-Acylimino-λ 3-iodanes from the Metathesis of Iodosoarenes and Nitriles for the Photoinduced C-H Perfluoroacylamination of (Hetero)Arenes. Org Lett 2022; 24:4835-4839. [PMID: 35758853 DOI: 10.1021/acs.orglett.2c02054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient and scalable synthesis of N-perfluoroacylimino-λ3-iodanes was achieved via an unprecedented metathesis between iodosoarenes and perfluoroalkanenitriles. The perfluoroacylamino groups of the iodanes could be introduced to aromatic and heteroaromatic rings using photoirradiation.
Collapse
Affiliation(s)
- Tomohiro Kimura
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo, Kyoto 607-8304, Japan
| | - Shohei Hamada
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, 1 Misasagishichono-cho, Yamashina, Kyoto 607-8412, Japan
| | - Takumi Furuta
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, 1 Misasagishichono-cho, Yamashina, Kyoto 607-8412, Japan
| | - Yoshiji Takemoto
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo, Kyoto 607-8304, Japan
| | - Yusuke Kobayashi
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, 1 Misasagishichono-cho, Yamashina, Kyoto 607-8412, Japan
| |
Collapse
|
4
|
Kobayashi Y, Masakado S, Murai T, Hamada S, Furuta T, Takemoto Y. A bench-stable N-trifluoroacetyl nitrene equivalent for a simple synthesis of 2-trifluoromethyl oxazoles. Org Biomol Chem 2021; 19:6628-6632. [PMID: 34282812 DOI: 10.1039/d1ob00947h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
ortho-Nitro-substituted N-trifluoroacetyl imino-λ3-iodane is a bench-stable trifluoroacetyl nitrene precursor, in which intra- and intermolecular halogen bonding (XB) plays an important role. Potential synthetic applications of this novel precursor were explored.
Collapse
Affiliation(s)
- Yusuke Kobayashi
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto 607-8414, Japan.
| | | | | | | | | | | |
Collapse
|
5
|
Saito A. Metal-Free Synthesis of Heterocycles via Activation of Alkynes by Hypervalent Iodine. J SYN ORG CHEM JPN 2021. [DOI: 10.5059/yukigoseikyokaishi.79.766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Akio Saito
- Department of Applied Chemistry, Tokyo University of Agriculture and Technology
| |
Collapse
|
6
|
Zhan Z, Zhang M, Jiang P, He J, Luo N, Wang H, Wang M, Huang G. Selective Synthesis of Trisubstituted Imidazoles by Iodine‐Catalyzed [3+2] Cycloadditions. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zhenzhen Zhan
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Mingming Zhang
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Pengbo Jiang
- Department Zhejiang Pharmaceutical Co., Ltd. Changhai Biological Branch Zhe Jiang Shaoxing P. R. China
| | - Jianping He
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Nan Luo
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Hesong Wang
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Meng Wang
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Guosheng Huang
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| |
Collapse
|
7
|
Makitalo CL, Yoshimura A, Rohde GT, Mironova IA, Yusubova RY, Yusubov MS, Zhdankin VV, Saito A. Imino‐λ
3
‐iodane and Catalytic Amount of I
2
‐Mediated Synthesis of
N
‐Allylsulfenamides via [2,3]‐Sigmatropic Rearrangement. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000961] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Cody L. Makitalo
- Department of Chemistry and Biochemistry University of Minnesota Duluth 55812 Minnesota USA
| | - Akira Yoshimura
- Department of Chemistry and Biochemistry University of Minnesota Duluth 55812 Minnesota USA
- Research School of Chemistry and Applied Biomedical Sciences The Tomsk Polytechnic University 634050 Tomsk Russia
| | | | - Irina A. Mironova
- Research School of Chemistry and Applied Biomedical Sciences The Tomsk Polytechnic University 634050 Tomsk Russia
| | - Rosa Y. Yusubova
- Research School of Chemistry and Applied Biomedical Sciences The Tomsk Polytechnic University 634050 Tomsk Russia
| | - Mekhman S. Yusubov
- Research School of Chemistry and Applied Biomedical Sciences The Tomsk Polytechnic University 634050 Tomsk Russia
| | - Viktor V. Zhdankin
- Department of Chemistry and Biochemistry University of Minnesota Duluth 55812 Minnesota USA
| | - Akio Saito
- Division of Applied Chemistry Institute of Engineering Tokyo University of Agriculture and Technology 2‐23‐16 Naka‐cho 184‐8588 Koganei Tokyo Japan
| |
Collapse
|
8
|
Takahashi S, Umakoshi Y, Nakayama K, Okada Y, Zhdankin VV, Yoshimura A, Saito A. Fluorocyclization of
N
‐Propargyl Carboxamides by λ
3
‐Iodane Catalysts with Coordinating Substituents. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000381] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shunsuke Takahashi
- Division of Applied Chemistry, Institute of EngineeringTokyo University of Agriculture and Technology, Koganei Tokyo 184-8588 Japan
| | - Yuki Umakoshi
- Division of Applied Chemistry, Institute of EngineeringTokyo University of Agriculture and Technology, Koganei Tokyo 184-8588 Japan
| | - Kaii Nakayama
- Division of Applied Chemistry, Institute of EngineeringTokyo University of Agriculture and Technology, Koganei Tokyo 184-8588 Japan
| | - Yohei Okada
- Division of Applied Chemistry, Institute of EngineeringTokyo University of Agriculture and Technology, Koganei Tokyo 184-8588 Japan
| | - Viktor V. Zhdankin
- Department of Chemistry and BiochemistryUniversity of Minnesota Duluth MN 55812 USA
| | - Akira Yoshimura
- Department of Chemistry and BiochemistryUniversity of Minnesota Duluth MN 55812 USA
| | - Akio Saito
- Division of Applied Chemistry, Institute of EngineeringTokyo University of Agriculture and Technology, Koganei Tokyo 184-8588 Japan
| |
Collapse
|
9
|
An Inexpensive, Efficient Alternative to NADPH to Support Catalysis by Thermostable Cytochrome P450 Enzymes. ChemCatChem 2020. [DOI: 10.1002/cctc.201902235] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
10
|
Zhang G, Wang Y, Xu J, Sun J, Sun F, Zhang Y, Zhang C, Du Y. A new hypervalent iodine(iii/v) oxidant and its application to the synthesis of 2 H-azirines. Chem Sci 2019; 11:947-953. [PMID: 34084348 PMCID: PMC8145639 DOI: 10.1039/c9sc05536c] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 12/05/2019] [Indexed: 12/25/2022] Open
Abstract
The reaction of o-nitroiodobenzene and mCPBA in acetic acid was found to afford a novel hypervalent iodine compound, in the structure of which both iodine(iii) and iodine(v) moieties coexist. The nitro groups at the ortho phenyl positions were found to be crucial in stabilizing this uncommon structure. This novel hypervalent iodine(iii/v) oxidant is proved to be effective in realizing the synthesis of 2-unsubstitued 2H-azirines via intramolecular oxidative azirination, which could not be efficiently achieved by the existing known hypervalent iodine reagents.
Collapse
Affiliation(s)
- Guangtao Zhang
- School of Pharmaceutical Science and Technology, Tianjin University Tianjin 300072 China
| | - Yuanxun Wang
- School of Pharmaceutical Science and Technology, Tianjin University Tianjin 300072 China
| | - Jun Xu
- School of Pharmaceutical Science and Technology, Tianjin University Tianjin 300072 China
| | - Jiyun Sun
- School of Pharmaceutical Science and Technology, Tianjin University Tianjin 300072 China
| | - Fengxia Sun
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology Shijiazhuang 050018 China
| | - Yilin Zhang
- C. Eugene Bennett Department of Chemistry, West Virginia University Morgantown West Virginia 26506-6045 USA
| | - Chenglin Zhang
- School of Pharmaceutical Science and Technology, Tianjin University Tianjin 300072 China
| | - Yunfei Du
- School of Pharmaceutical Science and Technology, Tianjin University Tianjin 300072 China
| |
Collapse
|
11
|
Tian Y, Qin M, Yang X, Zhang X, Liu Y, Guo X, Chen B. Acid-catalyzed synthesis of imidazole derivatives via N-phenylbenzimidamides and sulfoxonium ylides cyclization. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.04.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
12
|
Tateishi K, Noguchi K, Saito A. 2-Picoline catalyst-triggered [2 + 2 + 2] cycloaddition-type reaction of acetylenedicarboxylates, aldehydes and alkenes. Org Biomol Chem 2018; 16:5965-5968. [PMID: 30095831 DOI: 10.1039/c8ob01774c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
2-Picoline efficiently catalyzes the formation of α,β-enones from acetylenedicarboxylates and aldehydes in the presence of alkenes, thereby leading to pyrans in moderate to good yields with complete regioselectivities. This synthetic method of pyrans is represented as a first example of catalytic and direct [2 + 2 + 2] cycloaddition of three different components under the metal-free conditions.
Collapse
Affiliation(s)
- Keiichiro Tateishi
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan.
| | | | | |
Collapse
|
13
|
Masakado S, Kobayashi Y, Takemoto Y. Photo-Induced Aziridination of Alkenes with N-Sulfonyliminoiodinanes. Chem Pharm Bull (Tokyo) 2018; 66:688-690. [PMID: 29863071 DOI: 10.1248/cpb.c18-00198] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Activation of N-sulfonyliminiodinanes was achieved by photo-irradiation at 375 nm, which enabled the reaction with several alkenes to afford the corresponding aziridines. Mechanistic studies suggested that the reaction would proceed through a stepwise mechanism via radical intermediates rather than through a concerted process.
Collapse
Affiliation(s)
- Sota Masakado
- Graduate School of Pharmaceutical Sciences, Kyoto University
| | | | | |
Collapse
|
14
|
Shimizu H, Yoshimura A, Noguchi K, Nemykin VN, Zhdankin VV, Saito A. Oxidative cycloaddition of hydroxamic acids with dienes or guaiacols mediated by iodine(III) reagents. Beilstein J Org Chem 2018; 14:531-536. [PMID: 29623114 PMCID: PMC5852453 DOI: 10.3762/bjoc.14.39] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Accepted: 02/16/2018] [Indexed: 11/23/2022] Open
Abstract
[Bis(trifluoroacetoxy)iodo]benzene (BTI) and (diacetoxyiodo)benzene (DIB) efficiently promote the formation of acylnitroso species from hydroxamic acids in the presence of various dienes to give the corresponding hetero-Diels–Alder (HDA) adducts in moderate to high yields. The present method could be applied to the HDA reactions of acylnitroso species with o-benzoquinones generated by the oxidative dearomatization of guaiacols.
Collapse
Affiliation(s)
- Hisato Shimizu
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Akira Yoshimura
- Department of Chemistry and Biochemistry, University of Minnesota, Duluth, MN 55812, USA.,The Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Keiichi Noguchi
- Instrumentation Analysis Center, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Victor N Nemykin
- Department of Chemistry, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Viktor V Zhdankin
- Department of Chemistry and Biochemistry, University of Minnesota, Duluth, MN 55812, USA
| | - Akio Saito
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| |
Collapse
|