1
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Hashimoto Y, Harada S, Kato R, Ikeda K, Nonnhoff J, Gröger H, Nemoto T. Merging Chemo- and Biocatalysis to Facilitate the Syntheses of Complex Natural Products: Enantioselective Construction of an N-Bridged [3.3.1] Ring System in Indole Terpenoids. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yoshinori Hashimoto
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Shingo Harada
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Ryosuke Kato
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Kotaro Ikeda
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Jannis Nonnhoff
- Chair of Industrial Organic Chemistry and Biotechnology, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Harald Gröger
- Chair of Industrial Organic Chemistry and Biotechnology, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
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2
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Brambilla E, Abbiati G, Caselli A, Pirovano V, Rossi E. Coinage metal carbenes in heterocyclic synthesis via formation of new carbon-heteroatom bonds. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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3
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Tsujihara T, Sasaki R, Fukkoshi M, Hatakeyama S, Takehara T, Suzuki T, Kawano T. Synthesis of 6,7-benzene-fused tropane derivatives from isoindoline-aminal hybrid compound. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Harada S. Development of Novel Methodology Using Diazo Compounds and Metal Catalysts. Chem Pharm Bull (Tokyo) 2021; 69:1170-1178. [PMID: 34853283 DOI: 10.1248/cpb.c21-00757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The ability to control the reactions of highly active chemical species to enable straightforward synthesis of valuable compounds such as bioactive natural products and pharmaceuticals is a continuing challenge in synthetic organic chemistry. This review describes the development of a methodology using reactive metal-carbene species and its synthetic application in our laboratory. First, regioselective synthesis of γ-amino acid equivalents to take advantage of their metal-dependent reactivities and the mechanistic rationale are presented. Chemoselective and enantioselective dearomatization reactions of several arenes with silver-carbene are also discussed. In the second half of the review, we discuss a carbene-insertion reaction into an amide and urea C-N bond for the assembly of nitrogen-bridged cyclic molecules.
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Affiliation(s)
- Shingo Harada
- Graduate School of Pharmaceutical Sciences, Chiba University
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5
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Yanagawa M, Harada S, Hirose S, Nemoto T. Rapid Synthesis of Functionalized Hydrocarbazolones
via
Indole C2−H Activation Using Enone Functionality as a Directing Group/Electrophilic Species. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100098] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Mai Yanagawa
- Graduate School of Pharmaceutical Sciences Chiba University 1-8-1, Inohana, Chuo-ku Chiba 260-8675 Japan
| | - Shingo Harada
- Graduate School of Pharmaceutical Sciences Chiba University 1-8-1, Inohana, Chuo-ku Chiba 260-8675 Japan
| | - Shumpei Hirose
- Graduate School of Pharmaceutical Sciences Chiba University 1-8-1, Inohana, Chuo-ku Chiba 260-8675 Japan
| | - Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences Chiba University 1-8-1, Inohana, Chuo-ku Chiba 260-8675 Japan
- Molecular Chirality Research Center Chiba University 1-33, Yayoi-cho, Inage-ku Chiba 263-8522 Japan
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6
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Hong K, Zhou S, Hu W, Xu X. Rh-Catalyzed nitrene alkyne metathesis/formal C–N bond insertion cascade: synthesis of 3-iminoindolines. Org Chem Front 2020. [DOI: 10.1039/d0qo00294a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A Rh-catalyzed nitrene/alkyne metathesis (NAM) cascade reaction terminated by a formal C–N bond insertion has been developed, which provides facile access to the tricyclic 3-iminoindolines in good yields with broad substrate scope.
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Affiliation(s)
- Kemiao Hong
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
| | - Su Zhou
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
| | - Wenhao Hu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
| | - Xinfang Xu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
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7
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Tan TD, Zhu XQ, Bu HZ, Deng G, Chen YB, Liu RS, Ye LW. Copper-Catalyzed Cascade Cyclization of Indolyl Homopropargyl Amides: Stereospecific Construction of Bridged Aza-[n.2.1] Skeletons. Angew Chem Int Ed Engl 2019; 58:9632-9639. [PMID: 31095848 DOI: 10.1002/anie.201904698] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Indexed: 11/09/2022]
Abstract
Catalytic cycloisomerization-initiated cascade cyclizations of terminal alkynes have received tremendous interest, and been widely used in the facile synthesis of a diverse array of valuable complex heterocycles. However, these tandem reactions have been mostly limited to noble-metal catalysis, and are initiated by an exo-cyclization pathway. Reported herein is an unprecedented copper-catalyzed endo-cyclization-initiated tandem reaction of indolyl homopropargyl amides, where copper catalyzes both the hydroamination and Friedel-Crafts alkylation process. This method allows the practical and atom-economical synthesis of valuable bridged aza-[n.2.1] skeletons (n=3-6) with wide substrate scope, and excellent diastereoselectivity and enantioselectivity by a chirality-transfer strategy. Moreover, the mechanistic rationale for this novel cascade cyclization is also strongly supported by control experiments, and is distinctively different from the related gold catalysis.
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Affiliation(s)
- Tong-De Tan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Xin-Qi Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Hao-Zhen Bu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Guocheng Deng
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Yang-Bo Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Rai-Shung Liu
- Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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8
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Tan T, Zhu X, Bu H, Deng G, Chen Y, Liu R, Ye L. Copper‐Catalyzed Cascade Cyclization of Indolyl Homopropargyl Amides: Stereospecific Construction of Bridged Aza‐[
n
.2.1] Skeletons. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904698] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Tong‐De Tan
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Xin‐Qi Zhu
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Hao‐Zhen Bu
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Guocheng Deng
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Yang‐Bo Chen
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Rai‐Shung Liu
- Department of ChemistryNational Tsing-Hua University Hsinchu Taiwan
| | - Long‐Wu Ye
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
- State Key Laboratory of Elemento-Organic ChemistryNankai University Tianjin 300071 China
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9
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Harada S, Sakai C, Tanikawa K, Nemoto T. Gold-catalyzed chemoselective formal (3+2)-Annulation reaction between β-naphthols and methyl aryldiazoacetate. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.05.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Kono M, Harada S, Nemoto T. Chemoselective Intramolecular Formal Insertion Reaction of Rh-Nitrenes into an Amide Bond Over C-H Insertion. Chemistry 2019; 25:3119-3124. [PMID: 30561054 DOI: 10.1002/chem.201805878] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Indexed: 11/09/2022]
Abstract
The past few decades have witnessed extensive efforts to disclose the unique reactivity of metal-nitrenes, because they could be a powerful synthetic tool for introducing the amine functionality into unactivated chemical bonds. The reactivity of metal-nitrenes, however, is currently mainly confined to aziridination (an insertion into a C=C bond) and C-H amination (an insertion into a C-H bond). Nitrene insertion into an amide C-N bond, however, has not been reported so far. In this work we have developed a rhodium-catalyzed one-nitrogen insertion into amide C-N and sulfonamide S-N bonds. Experimental and theoretical analyses based on density functional theory indicate that the formal amide insertion proceeds via a rhodium-coordinated ammonium ylide formed between the nitrene and the amide nitrogen, followed by acyl group transfer concomitant with C-N bond cleavage. Mechanistic studies have allowed rationalization of the origin of the chemoselectivity observed between the C-H and amide insertion reactions. The methodology presented herein is the first example of an insertion of nitrene into amide bonds and provides facile access to unique diazacyclic systems with an N-N bond linkage.
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Affiliation(s)
- Masato Kono
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Shingo Harada
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8675, Japan.,Molecular Chirality Research Center, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
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11
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Kono M, Harada S, Nemoto T. Exploring New Reactivity of Metal Carbenoids and its Application to Organic Synthesis. J SYN ORG CHEM JPN 2019. [DOI: 10.5059/yukigoseikyokaishi.77.49] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
| | - Shingo Harada
- Graduate School of Pharmaceutical Sciences, Chiba University
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12
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Ueda J, Harada S, Nakayama H, Nemoto T. Silver-catalyzed regioselective hydroamination of alkenyl diazoacetates to synthesize γ-amino acid equivalents. Org Biomol Chem 2018; 16:4675-4682. [PMID: 29888358 DOI: 10.1039/c8ob00894a] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A simple protocol to directly access γ-amino acid derivatives by intermolecular regioselective hydroamination of trichloroethyl alkenyldiazoacetates with carbamate using a silver tetrafluoroborate catalyst is described. Density functional theory (DFT) calculations to analyze the reaction mechanism revealed that multiple attractive interactions occur in a transition state to promote the vinylogous addition of nitrogen nucleophiles.
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Affiliation(s)
- Jun Ueda
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan.
| | - Shingo Harada
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan.
| | - Hiroki Nakayama
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan.
| | - Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan. and Molecular Chirality Research Center, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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13
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Synthesis of functionalized iodoalkenes using a multicomponent reaction triggered by electrophilic iodination of alkenyldiazoacetates. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.063] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Nakayama H, Harada S, Kanda A, Kwok IMY, Nemoto T. Binary additive effect of benzoic acid in ipso -Friedel-Crafts-type dearomatization of phenols using a chiral silver phosphate. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.03.060] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2016. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.09.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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16
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Harada S, Kwok IMY, Nakayama H, Kanda A, Nemoto T. Merging Brønsted Acid and Hydrogen-Bonding Catalysis: Metal-Free Dearomatization of Phenolsvia ipso-Friedel-Crafts Alkylation to Produce Functionalized Spirolactams. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701287] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shingo Harada
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1, Inohana, Chuo-ku Chiba 260-8675 Japan
| | - Irene Mei-Yi Kwok
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1, Inohana, Chuo-ku Chiba 260-8675 Japan
| | - Hiroki Nakayama
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1, Inohana, Chuo-ku Chiba 260-8675 Japan
| | - Ayaka Kanda
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1, Inohana, Chuo-ku Chiba 260-8675 Japan
| | - Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1, Inohana, Chuo-ku Chiba 260-8675 Japan
- Molecular Chirality Research Center; Chiba University; 1-33, Yayoi-cho Inage-ku, Chiba 263-8522 Japan
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17
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Kono M, Harada S, Nemoto T. Rhodium-Catalyzed Stereospecific C−H Amination for the Construction of Spiroaminal Cores: Reactivity Difference between Nitrenoid and Carbenoid Species against Amide Functionality. Chemistry 2017; 23:7428-7432. [DOI: 10.1002/chem.201701464] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Indexed: 12/18/2022]
Affiliation(s)
- Masato Kono
- Graduate School of Pharmaceutical Sciences; Chiba University, 1-8-1, Inohana, Chuo-ku; Chiba 260-8675 Japan
| | - Shingo Harada
- Graduate School of Pharmaceutical Sciences; Chiba University, 1-8-1, Inohana, Chuo-ku; Chiba 260-8675 Japan
| | - Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences; Chiba University, 1-8-1, Inohana, Chuo-ku; Chiba 260-8675 Japan
- Chirality Research Center; Chiba University, 1-33, Yayoi-cho, Inage-ku; Chiba 263-8522 Japan
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