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Sennari G, Gardner KE, Wiesler S, Haider M, Eggert A, Sarpong R. Unified Total Syntheses of Benzenoid Cephalotane-Type Norditerpenoids: Cephanolides and Ceforalides. J Am Chem Soc 2022; 144:19173-19185. [PMID: 36198090 DOI: 10.1021/jacs.2c08803] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Detailed herein are our synthetic studies toward the preparation of the C18- and C19-benzenoid cephalotane-type norditerpenoids. Guided by chemical network analysis, the core structure of this natural product family was constructed in a concise manner using an iterative cross-coupling, followed by a formal inverse-electron-demand [4 + 2] cycloaddition. Initial efforts to functionalize an alkene group in the [4 + 2] cycloadduct using a Mukaiyama hydration and a subsequent olefination led to the complete C18-carbon framework. While effective, this approach proved lengthy and prompted the development of a direct alkene difunctionalization that relies on borocupration to advance the cycloadduct to the natural products. Late-stage peripheral C-H functionalization facilitated access to all of the known cephanolides in 6-10 steps as well as five recently isolated ceforalides in 8-13 steps.
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Affiliation(s)
- Goh Sennari
- Department of Chemistry, University of California─Berkeley, Berkeley, California 94720, United States
| | - Kristen E Gardner
- Department of Chemistry, University of California─Berkeley, Berkeley, California 94720, United States
| | - Stefan Wiesler
- Department of Chemistry, University of California─Berkeley, Berkeley, California 94720, United States
| | - Maximilian Haider
- Department of Chemistry, University of California─Berkeley, Berkeley, California 94720, United States
| | - Alina Eggert
- Department of Chemistry, University of California─Berkeley, Berkeley, California 94720, United States
| | - Richmond Sarpong
- Department of Chemistry, University of California─Berkeley, Berkeley, California 94720, United States
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2
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Kurogi T, Uchida K, Wakamatsu K, Takai K. A Transmetallation Pathway to a Dinuclear Chromium μ-Methylene Complex. CHEM LETT 2022. [DOI: 10.1246/cl.220075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Takashi Kurogi
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawaoiwake-cho, Sakyo-ku, Kyoto 606-8502
| | - Kenta Uchida
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530
| | - Kazusa Wakamatsu
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530
| | - Kazuhiko Takai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530
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3
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Murai M, Taniguchi R, Takai K. Regiodivergent Carbene/Alkyne Metathesis in Chromium-Mediated Coupling and Cyclization with 1,6-Enynes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Masahito Murai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya, Aichi 464-8602, Japan
| | - Ryuji Taniguchi
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Kazuhiko Takai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
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4
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Wei N, Yang D, Zhao J, Mei T, Zhang Y, Wang B, Qu J. Structure and Methylene Transfer Reactivity of Thiolate-Bridged Dichromium Methylene Complexes Derived from Dihalomethane via Cleavage of Two Carbon–Halogen Bonds. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Nianmin Wei
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Dawei Yang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Jinfeng Zhao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Tao Mei
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Yixin Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Baomin Wang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Jingping Qu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, People’s Republic of China
- State Key Laboratory of Bioreactor Engineering, Collaborative Innovation Centre for Biomanufacturing, Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
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5
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Haider M, Sennari G, Eggert A, Sarpong R. Total Synthesis of the Cephalotaxus Norditerpenoids (±)-Cephanolides A-D. J Am Chem Soc 2021; 143:2710-2715. [PMID: 33577317 DOI: 10.1021/jacs.1c00293] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Concise syntheses of the Cephalotaxus norditerpenoids cephanolides A-D (8-14 steps from commercial material) using a common late-stage synthetic intermediate are described. The success of our approach rested on an early decision to apply chemical network analysis to identify the strategic bonds that needed to be forged, as well as the efficient construction of the carbon framework through iterative Csp2-Csp3 cross-coupling, followed by an intramolecular inverse-demand Diels-Alder cycloaddition. Strategic late-stage oxidations facilitated access to all congeners of the benzenoid cephanolides isolated to date.
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Affiliation(s)
- Maximilian Haider
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | - Goh Sennari
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | - Alina Eggert
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | - Richmond Sarpong
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
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6
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Kurogi T, Kuroki K, Moritani S, Takai K. Structural elucidation of a methylenation reagent of esters: synthesis and reactivity of a dinuclear titanium(iii) methylene complex. Chem Sci 2021; 12:3509-3515. [PMID: 34163624 PMCID: PMC8179466 DOI: 10.1039/d0sc06366e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Transmetallation of a zinc methylene complex [ZnI(tmeda)]2(μ-CH2) with a titanium(iii) chloride [TiCl3(tmeda)(thf)] produced a titanium methylene complex. The X-ray diffraction study displayed a dinuclear methylene structure [TiCl(tmeda)]2(μ-CH2)(μ-Cl)2. Treatment of an ester with the titanium methylene complex resulted in methylenation of the ester carbonyl to form a vinyl ether. The titanium methylene complex also reacted with a terminal olefin, resulting in olefin-metathesis and olefin-homologation. Cyclopropanation by methylene transfer from the titanium methylene proceeded by use of a 1,3-diene. The mechanistic study of the cyclopropanation reaction by the density functional theory calculations was also reported. Transmetallation of a zinc methylene complex [ZnI(tmeda)]2(μ-CH2) with a titanium(iii) chloride [TiCl3(tmeda)(thf)] produced a titanium methylene complex.![]()
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Affiliation(s)
- Takashi Kurogi
- Division of Applied Chemistry, Graduate School of National Science and Technology, Okayama University 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan
| | - Kaito Kuroki
- Division of Applied Chemistry, Graduate School of National Science and Technology, Okayama University 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan
| | - Shunsuke Moritani
- Division of Applied Chemistry, Graduate School of National Science and Technology, Okayama University 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan
| | - Kazuhiko Takai
- Division of Applied Chemistry, Graduate School of National Science and Technology, Okayama University 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan
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Murai M, Taniguchi R, Takai K. Cyclization of 1,n-Enynes Initiated by the Addition Reaction of gem-Dichromiomethane Reagents to Alkynes. Org Lett 2020; 22:3985-3988. [DOI: 10.1021/acs.orglett.0c01304] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Masahito Murai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan
| | - Ryuji Taniguchi
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Kazuhiko Takai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
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8
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Murai M, Yamamoto M, Takai K. Mechanistic Insights into Rhenium-Catalyzed Regioselective C-Alkenylation of Phenols with Internal Alkynes. Chemistry 2019; 25:15189-15197. [PMID: 31532028 DOI: 10.1002/chem.201903910] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 09/17/2019] [Indexed: 11/12/2022]
Abstract
A (μ-aryloxo)rhenium complex was isolated and confirmed as a key precatalyst for rhenium-catalyzed ortho-alkenylation (C-alkenylation) of unprotected phenols with alkynes. The reaction exclusively provided ortho-alkenylphenols; the formation of para or multiply alkenylated phenols and hydrophenoxylation (O-alkenylation) products was not observed. Several mechanistic experiments excluded a classical Friedel-Crafts-type mechanism, leading to the proposed phenolic hydroxyl group assisted electrophilic alkenylation as the most plausible reaction mechanism. For this purpose, the use of rhenium, a metal between the early and late transition metals in the periodic table, was key for the activation of both the soft carbon-carbon triple bond of the alkyne and the hard oxygen atom of the phenol, at the same time. ortho-Selective alkenylation with allenes also provided the corresponding adducts with a substitution pattern different from that obtained by the addition reaction with alkynes.
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Affiliation(s)
- Masahito Murai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan.,Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
| | - Masaki Yamamoto
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan
| | - Kazuhiko Takai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan
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Murai M, Taniguchi R, Mizuta C, Takai K. Chromium-Mediated Stannylcyclopropanation of Alkenes with (Diiodomethyl)stannanes. Org Lett 2019; 21:2668-2672. [PMID: 30946593 DOI: 10.1021/acs.orglett.9b00658] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A stannyl-group-substituted gem-dichromiomethane species, generated in situ from CrCl2, TMEDA, and tributyl(diiodomethyl)stannane, worked as an efficient stannylcarbene equivalent to promote cyclopropanation of alkenes. The reaction provided synthetically useful stannylcyclopropanes directly from commercially available unactivated alkenes without using potentially flammable alkylzinc and diazo compounds. Structural characterization of stannyl- and germyl-group-substituted gem-dichromiomethane complexes and the effect of group 14 elements containing substituents for cyclopropanation are also described.
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Affiliation(s)
- Masahito Murai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology , Okayama University , 3-1-1 Tsushimanaka , Kita-ku , Okayama 700-8530 , Japan
| | - Ryuji Taniguchi
- Division of Applied Chemistry, Graduate School of Natural Science and Technology , Okayama University , 3-1-1 Tsushimanaka , Kita-ku , Okayama 700-8530 , Japan
| | - Chisato Mizuta
- Division of Applied Chemistry, Graduate School of Natural Science and Technology , Okayama University , 3-1-1 Tsushimanaka , Kita-ku , Okayama 700-8530 , Japan
| | - Kazuhiko Takai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology , Okayama University , 3-1-1 Tsushimanaka , Kita-ku , Okayama 700-8530 , Japan
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10
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Takai K. Capturing the Crystal Structure of the Key Species! J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.640] [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)
- Kazuhiko Takai
- Graduate School of Natural Science and Technology, Okayama University
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11
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Guang J, Duwald R, Maddaluno J, Oulyadi H, Lakhdar S, Gaumont AC, Harrison-Marchand A. Synthesis and Identification of Aryl and Alkyl Gem-Dilithium Phosphido-Boranes: A Boost to the Chemistry of Phosphandiides. Chemistry 2018. [PMID: 29533492 DOI: 10.1002/chem.201800742] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jie Guang
- Normandie Université, UNIROUEN, INSA de Rouen, CNRS; Laboratoire COBRA (UMR 6014 & FR 3038); 76000 Rouen France
| | - Romain Duwald
- Normandie Université, UNIROUEN, INSA de Rouen, CNRS; Laboratoire COBRA (UMR 6014 & FR 3038); 76000 Rouen France
| | - Jacques Maddaluno
- Normandie Université, UNIROUEN, INSA de Rouen, CNRS; Laboratoire COBRA (UMR 6014 & FR 3038); 76000 Rouen France
| | - Hassan Oulyadi
- Normandie Université, UNIROUEN, INSA de Rouen, CNRS; Laboratoire COBRA (UMR 6014 & FR 3038); 76000 Rouen France
| | - Sami Lakhdar
- Normandie Université, ENSICAEN, UNICAEN, CNRS; Laboratoire LCMT (UMR 6507 & FR 3038); 14000 Caen France
| | - Annie-Claude Gaumont
- Normandie Université, ENSICAEN, UNICAEN, CNRS; Laboratoire LCMT (UMR 6507 & FR 3038); 14000 Caen France
| | - Anne Harrison-Marchand
- Normandie Université, UNIROUEN, INSA de Rouen, CNRS; Laboratoire COBRA (UMR 6014 & FR 3038); 76000 Rouen France
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12
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Matsubara S. Molecular Transformations Using Bis(iodozincio)methane–The Role of Chelation in Main Group Organometallic Chemistry. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20170281] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Seijiro Matsubara
- Kyoto University, Department of Material Chemistry, Graduate School of Engineering, Kyotodaigaku-Katsura, Nishikyo, Kyoto 615-8516
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13
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Murai M, Taniguchi R, Hosokawa N, Nishida Y, Mimachi H, Oshiki T, Takai K. Structural Characterization and Unique Catalytic Performance of Silyl-Group-Substituted Geminal Dichromiomethane Complexes Stabilized with a Diamine Ligand. J Am Chem Soc 2017; 139:13184-13192. [PMID: 28814078 DOI: 10.1021/jacs.7b07487] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Stabilization by a silyl group on the methylene carbon and a diamine ligand led to the isolation of gem-dichromiomethane species. X-ray crystallography confirmed the identity of the structure of this rare example of reactive gem-dimetalloalkane species. The isolated gem-dichromiomethane complex acted as a storable silylmethylidene carbene equivalent, with reactivity that could be changed dramatically upon addition of a Lewis acid (ZnCl2) and a base (TMEDA) to promote both silylalkylidenation of polar aldehydes and silylcyclopropanation of nonpolar alkenes. Identification of a key reactive species also identified the catalytic version of these transformations and provided insights into the reaction mechanism. In contrast to Simmons-Smith cyclopropanation, the real reactive species for the current cyclopropanation was a chromiocarbene species, not a chromium carbenoid species.
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Affiliation(s)
- Masahito Murai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, and ‡Research Institute for Interdisciplinary Science, Okayama University , 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Ryuji Taniguchi
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, and ‡Research Institute for Interdisciplinary Science, Okayama University , 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Naoki Hosokawa
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, and ‡Research Institute for Interdisciplinary Science, Okayama University , 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Yusuke Nishida
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, and ‡Research Institute for Interdisciplinary Science, Okayama University , 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Hiroko Mimachi
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, and ‡Research Institute for Interdisciplinary Science, Okayama University , 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Toshiyuki Oshiki
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, and ‡Research Institute for Interdisciplinary Science, Okayama University , 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Kazuhiko Takai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, and ‡Research Institute for Interdisciplinary Science, Okayama University , 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
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14
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Haraguchi R, Tanazawa SG, Tokunaga N, Fukuzawa SI. Palladium-Catalyzed Formylation of Arylzinc Reagents with S-Phenyl Thioformate. Org Lett 2017; 19:1646-1649. [PMID: 28276691 DOI: 10.1021/acs.orglett.7b00447] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The first example of palladium-catalyzed direct formylation of arylzinc reagents using S-phenyl thioformate is reported. The reaction proceeded under mild conditions, allowing high functional group tolerance. In addition, the developed formylation method was used to prepare deuterated and 13C-labeled aryl aldehydes from isotope-labeled S-phenyl thioformates. Moreover, this procedure was applied to an alkenylzinc halide, affording the corresponding enal.
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Affiliation(s)
- Ryosuke Haraguchi
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University , 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Sho-Go Tanazawa
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University , 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Naoya Tokunaga
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University , 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Shin-Ichi Fukuzawa
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University , 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
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15
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Swiatkowski M, Kruszynski R. Revealing the structural chemistry of the group 12 halide coordination compounds with 2,2′-bipyridine and 1,10-phenanthroline. J COORD CHEM 2017. [DOI: 10.1080/00958972.2016.1271982] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Marcin Swiatkowski
- Institute of General and Ecological Chemistry, Lodz University of Technology, Lodz, Poland
| | - Rafal Kruszynski
- Institute of General and Ecological Chemistry, Lodz University of Technology, Lodz, Poland
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16
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Ilies L, Isomura M, Yamauchi SI, Nakamura T, Nakamura E. Indole Synthesis via Cyclative Formation of 2,3-Dizincioindoles and Regioselective Electrophilic Trapping. J Am Chem Soc 2016; 139:23-26. [DOI: 10.1021/jacs.6b10061] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Laurean Ilies
- Department of Chemistry and
Molecular Technology Innovation Chair, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Mayuko Isomura
- Department of Chemistry and
Molecular Technology Innovation Chair, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shin-ichi Yamauchi
- Department of Chemistry and
Molecular Technology Innovation Chair, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tomoya Nakamura
- Department of Chemistry and
Molecular Technology Innovation Chair, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Eiichi Nakamura
- Department of Chemistry and
Molecular Technology Innovation Chair, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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17
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Takai K. Trace Amounts of Second Metal Elements Can Play a Key Role in the Generation of Organometallic Compounds. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2015. [DOI: 10.1246/bcsj.20150170] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kazuhiko Takai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University
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18
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Haraguchi R, Ikeda Z, Ooguri A, Matsubara S. Chemo- and regioselective preparation of zinc enolate from thiol esters by palladium catalyzed cross-coupling reaction. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.08.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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