1
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Kobayashi T, Hayano F, Kamiya A, Kawamoto Y, Ito H. Asymmetric Total Synthesis of (+)-Lemnardosinane A. Org Lett 2024; 26:5105-5109. [PMID: 38848442 DOI: 10.1021/acs.orglett.4c01384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2024]
Abstract
The asymmetric total synthesis of (+)-lemnardosinane A, a rare rearranged sesquiterpenoid, has been accomplished from (S)-carvone. Key features of the synthesis are the formation of a bicyclo[3.3.1]nonane skeleton using the intramolecular aldol reaction, the stereoselective introduction of an alkyne group, and the stereoselective formation of a tricyclic skeleton via intramolecular pinacol coupling.
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Affiliation(s)
- Toyoharu Kobayashi
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Futaba Hayano
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Akinobu Kamiya
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Yuichiro Kawamoto
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Hisanaka Ito
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
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2
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O'Reilly A, Evans MJ, McMullin CL, Fulton JR, Coles MP. Pinacol Cross-Coupling Promoted by an Aluminyl Anion. Chemistry 2024; 30:e202302999. [PMID: 37786922 DOI: 10.1002/chem.202302999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/04/2023]
Abstract
A simple sequential addition protocol for the reductive coupling of ketones and aldehydes by a potassium aluminyl grants access to unsymmetrical pinacolate derivatives. Isolation of an aluminium ketyl complex presents evidence for the accessibility of radical species. Product release from the aluminium centre was achieved using an iodosilane, forming the disilylated 1,2-diol and a neutral aluminium iodide, thereby demonstrating the steps required to generate a closed synthetic cycle for pinacol (cross) coupling at an aluminyl anion.
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Affiliation(s)
- Andrea O'Reilly
- School of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, 6012, New Zealand
| | - Matthew J Evans
- School of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, 6012, New Zealand
| | | | - J Robin Fulton
- School of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, 6012, New Zealand
| | - Martyn P Coles
- School of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, 6012, New Zealand
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3
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Sun D, Chen R, Tang D, Xia Q, Zhao Y, Liu CH, Ding H. Total Synthesis of (-)-Retigeranic Acid A: A Reductive Skeletal Rearrangement Strategy. J Am Chem Soc 2023. [PMID: 37224289 DOI: 10.1021/jacs.3c03178] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The asymmetric total synthesis of (-)-retigeranic acid A was described, which relies on a crucial reductive skeletal rearrangement cascade for the controllable assembly of diverse angular triquinane subunits. Taken together with an intramolecular Michael/aldol cyclization, an ODI-[5 + 2] cycloaddition/pinacol rearrangement cascade, a Wolff ring contraction and a stereoselective HAT reduction, our synthetic approach has enabled the access to (-)-retigeranic acid A in a concise and practical manner.
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Affiliation(s)
- Dongyu Sun
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Ruyi Chen
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Dongmin Tang
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Qidong Xia
- College of Chemistry, Jilin University, Changchun 130012, China
| | - Yifan Zhao
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Chun-Hui Liu
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Hanfeng Ding
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
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4
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Yamamoto K, Arita K, Shiota M, Kuriyama M, Onomura O. Electrochemical formal homocoupling of sec-alcohols. Beilstein J Org Chem 2022; 18:1062-1069. [PMID: 36105731 PMCID: PMC9443307 DOI: 10.3762/bjoc.18.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 08/09/2022] [Indexed: 11/23/2022] Open
Abstract
Electrochemical pinacol coupling of carbonyl compounds in an undivided cell with a sacrificial anode would be a promising approach toward synthetically valuable vic-1,2-diol scaffolds without using low-valent metal reductants. However, sacrificial anodes produce an equimolar amount of metal waste, which may be a major issue in terms of sustainable chemistry. Herein, we report a sacrificial anode-free electrochemical protocol for the synthesis of pinacol-type vic-1,2-diols from sec-alcohols, namely benzyl alcohol derivatives and ethyl lactate. The corresponding vic-1,2-diols are obtained in moderate to good yields, and good to high levels of stereoselectivity are observed for sec-benzyl alcohol derivatives. The present transformations smoothly proceed in a simple undivided cell under constant current conditions without the use of external chemical oxidants/reductants, and transition-metal catalysts.
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Affiliation(s)
- Kosuke Yamamoto
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Kazuhisa Arita
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Masashi Shiota
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Masami Kuriyama
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Osamu Onomura
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
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5
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Komine K, Ninomiya R, Fukuda H, Ishihara J. A Stereoselective Synthesis of Fused Carbocycles with a cis-1,2-Diol Moiety by Desymmetrization: SmI 2-mediated Pinacol Coupling of meso-Cyclic 1,3-Diones. Chem Pharm Bull (Tokyo) 2021; 70:89-93. [PMID: 34732589 DOI: 10.1248/cpb.c21-00837] [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
SmI2-mediated desymmetrization of a meso-cyclic 1,3-dione pinacol coupling is described. The reaction proceeds with high stereoselectivity to provide fused carbocyclic compounds with three contiguous stereogenic centers featuring an all-carbon quaternary center and a cis-1,2-diol moiety.
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Affiliation(s)
- Keita Komine
- Graduate School of Biomedical Sciences, Nagasaki University
| | - Riki Ninomiya
- Graduate School of Biomedical Sciences, Nagasaki University
| | - Hayato Fukuda
- Graduate School of Biomedical Sciences, Nagasaki University
| | - Jun Ishihara
- Graduate School of Biomedical Sciences, Nagasaki University
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6
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Yedase GS, John M, Yatham VR. Organophotoredox‐Catalyzed Switchable Selective Transformation of Aromatic Aldehydes into Pinacols and Benzyl alcohols. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100516] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Girish Suresh Yedase
- School of Chemistry Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) 695551 Thiruvananthapuram India
| | - Maria John
- School of biology Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) 695551 Thiruvananthapuram India
| | - Veera Reddy Yatham
- School of Chemistry Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) 695551 Thiruvananthapuram India
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7
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Liu C, Li R, Zhou W, Liang Y, Shi Y, Li RL, Ling Y, Yu Y, Li J, Zhang B. Selectivity Origin of Organic Electrosynthesis Controlled by Electrode Materials: A Case Study on Pinacols. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01382] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Cuibo Liu
- Institute of Molecular Plus, School of Science, Tianjin University, Tianjin 300072, China
| | - Rui Li
- Institute of Molecular Plus, School of Science, Tianjin University, Tianjin 300072, China
| | - Wei Zhou
- Institute of Molecular Plus, School of Science, Tianjin University, Tianjin 300072, China
| | - Yu Liang
- Institute of Molecular Plus, School of Science, Tianjin University, Tianjin 300072, China
| | - Yanmei Shi
- Institute of Molecular Plus, School of Science, Tianjin University, Tianjin 300072, China
| | - Run-Lai Li
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Yangfang Ling
- Institute of Molecular Plus, School of Science, Tianjin University, Tianjin 300072, China
| | - Yifu Yu
- Institute of Molecular Plus, School of Science, Tianjin University, Tianjin 300072, China
| | - Jianxin Li
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Bin Zhang
- Institute of Molecular Plus, School of Science, Tianjin University, Tianjin 300072, China
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
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8
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Li X, Kato T, Nakamura Y, Yamago S. The Effect of Viscosity on the Coupling and Hydrogen-Abstraction Reaction between Transient and Persistent Radicals. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Xiaopei Li
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Tatsuhisa Kato
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yasuyuki Nakamura
- Data-Driven Polymer Design Group, Research and Services Division of Materials Data and Integrated System (MaDIS), National Institute for Materials Science, Tsukuba, Ibaraki 305-0047, Japan
| | - Shigeru Yamago
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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9
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Teixeira CM, Adão P, Carvalho MFN, Gomes CS, Costa Pessoa J. -Phenylalanine derived tripodal vanadium complexes as catalysts for the asymmetric reductive coupling of benzaldehyde. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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10
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Schneider F, Samarin K, Zanella S, Gaich T. Total synthesis of the complex taxane diterpene canataxpropellane. Science 2020; 367:676-681. [DOI: 10.1126/science.aay9173] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 01/14/2020] [Indexed: 11/02/2022]
Abstract
Canataxpropellane belongs to the medicinally important taxane diterpene family. The most prominent congener, Taxol, is one of the most commonly used anticancer agent in clinics today. Canataxpropellane exhibits a taxane skeleton with three additional transannular C–C bonds, resulting in a total of six contiguous quaternary carbons, of which four are located on a cyclobutane ring. Unfortunately, isolation of canataxpropellane from natural sources is inefficient. Here, we report a total synthesis of (–)-canataxpropellane in 26 steps and 0.5% overall yield from a known intermediate corresponding to 29 steps from commercial material. The core structure of the (–)-canataxpropellane (2) was assembled in two steps using a Diels–Alder/ortho-alkene-arene photocycloaddition sequence. Enantioselectivity was introduced by designing chiral siloxanes to serve as auxiliaries in the Diels–Alder reaction.
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Affiliation(s)
- Fabian Schneider
- Department of Chemistry, University of Konstanz, 78467 Konstanz, Germany
| | - Konstantin Samarin
- Department of Chemistry, University of Konstanz, 78467 Konstanz, Germany
| | - Simone Zanella
- Department of Chemistry, University of Konstanz, 78467 Konstanz, Germany
| | - Tanja Gaich
- Department of Chemistry, University of Konstanz, 78467 Konstanz, Germany
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11
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Caron A, Morin É, Collins SK. Bifunctional Copper-Based Photocatalyst for Reductive Pinacol-Type Couplings. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01718] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Antoine Caron
- Département de Chimie, Centre for Green Chemistry and Catalysis, Université de Montréal, 6128 Station Downtown, Montréal, Québec H3C 3J7, Canada
| | - Émilie Morin
- Département de Chimie, Centre for Green Chemistry and Catalysis, Université de Montréal, 6128 Station Downtown, Montréal, Québec H3C 3J7, Canada
| | - Shawn K. Collins
- Département de Chimie, Centre for Green Chemistry and Catalysis, Université de Montréal, 6128 Station Downtown, Montréal, Québec H3C 3J7, Canada
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12
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Imamura Y, Yoshioka S, Nagatomo M, Inoue M. Total Synthesis of 1-Hydroxytaxinine. Angew Chem Int Ed Engl 2019; 58:12159-12163. [PMID: 31211483 DOI: 10.1002/anie.201906872] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Indexed: 12/18/2022]
Abstract
1-Hydroxytaxinine (1) is a cytotoxic taxane diterpenoid. Its central eight-membered B-ring possesses four oxygen-functionalized centers (C1, C2, C9, and C10) and two quaternary carbon centers (C8 and C15), and is fused with six-membered A- and C-rings. The densely functionalized and intricately fused structure of 1 makes it a highly challenging synthetic target. Reported here is an efficient radical-based strategy for assembling 1 from A- and C-ring fragments. The A-ring bearing an α-alkoxyacyl telluride moiety underwent intermolecular coupling with the C-ring fragment by a Et3 B/O2 -promoted decarbonylative radical formation. After construction of the C8-quaternary stereocenter, a pinacol coupling reaction using a low-valent titanium reagent formed the B-ring with stereoselective installation of the C1,C2-diol. Subsequent manipulations at the A- and C-rings furnished 1 in 26 total steps.
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Affiliation(s)
- Yusuke Imamura
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Shun Yoshioka
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Masanori Nagatomo
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Masayuki Inoue
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
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13
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Imamura Y, Yoshioka S, Nagatomo M, Inoue M. Total Synthesis of 1‐Hydroxytaxinine. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906872] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Yusuke Imamura
- Graduate School of Pharmaceutical SciencesThe University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Shun Yoshioka
- Graduate School of Pharmaceutical SciencesThe University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Masanori Nagatomo
- Graduate School of Pharmaceutical SciencesThe University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Masayuki Inoue
- Graduate School of Pharmaceutical SciencesThe University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
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14
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Kise N, Kinameri S, Sakurai T. Reductive coupling of aliphatic cyclic imides and ω-amidoesters with benzophenones by low-valent titanium: Synthesis of 5-diarylmethylene-1,5-dihydropyrrol-2-ones, 6-diarylmethyl-2-pyridones, and ω-(diarylmethylene)lactams. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.05.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Takeda M, Mitsui A, Nagao K, Ohmiya H. Reductive Coupling between Aromatic Aldehydes and Ketones or Imines by Copper Catalysis. J Am Chem Soc 2019; 141:3664-3669. [DOI: 10.1021/jacs.8b13309] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mitsutaka Takeda
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Atsuhisa Mitsui
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Kazunori Nagao
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Hirohisa Ohmiya
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
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16
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Liu PY, Cui LN, Yang L, Shu XP, Zhu QY, Dai J. Bio-compatible fluorescent nano TiO materials prepared from titanium-oxo-cluster precursors. Chem Commun (Camb) 2019; 55:12360-12363. [DOI: 10.1039/c9cc06235a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Using a fluorescent dye pre-coordinated titanium-oxo-cluster (TOC) as a molecular precursor, a biocompatible and fluorescent nano TiO material was prepared, which opens the door for most non-water-soluble TOCs for the applications in biosystems.
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Affiliation(s)
- Pei-Yi Liu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- People's Republic of China
| | - Li-Na Cui
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- People's Republic of China
| | - Lei Yang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- People's Republic of China
| | - Xian-Ping Shu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- People's Republic of China
| | - Qin-Yu Zhu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- People's Republic of China
| | - Jie Dai
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- People's Republic of China
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17
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McDonald BR, Scheidt KA. Intermolecular Reductive Couplings of Arylidene Malonates via Lewis Acid/Photoredox Cooperative Catalysis. Org Lett 2018; 20:6877-6881. [PMID: 30346177 DOI: 10.1021/acs.orglett.8b02893] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A cooperative Lewis acid/photocatalytic reduction of arylidene malonates yields a versatile radical anion species. This intermediate preferentially undergoes intermolecular radical-radical coupling reactions, and not the conjugate addition-dimerization reactivity typically observed in the single-electron reduction of conjugate acceptors. Reported here is the development of this open-shell species in intermolecular radical-radical cross couplings, radical dimerizations, and transfer hydrogenations. This reactivity underscores the enabling modularity of cooperative catalysis and demonstrates the utility of stabilized enoate-derived radical anions in intermolecular bond forming reactions.
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Affiliation(s)
- Benjamin R McDonald
- Department of Chemistry, Center for Molecular Innovation and Drug Discovery , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
| | - Karl A Scheidt
- Department of Chemistry, Center for Molecular Innovation and Drug Discovery , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
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18
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Reductive coupling of hydantoins with benzophenones by low-valent titanium: Synthesis of 4-substituted 1H-imidazol-2(3H)-ones and unusual two-to-two coupled products. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.01.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Xu X, Min QQ, Li N, Liu F. Visible light-promoted umpolung coupling of aryl tri-/difluoroethanones with 2-alkenylpyridines. Chem Commun (Camb) 2018; 54:11017-11020. [DOI: 10.1039/c8cc06748a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A metal-free, mild, and simple protocol is developed for the synthesis of tertiary alcohols bearing tri-/difluoromethyl groups upon visible-light irradiation.
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Affiliation(s)
- Xiao Xu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Qing-Qiang Min
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Na Li
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Feng Liu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
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20
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Zhang HH, Yu S. Radical Alkylation of Imines with 4-Alkyl-1,4-dihydropyridines Enabled by Photoredox/Brønsted Acid Cocatalysis. J Org Chem 2017; 82:9995-10006. [DOI: 10.1021/acs.joc.7b01425] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Hong-Hao Zhang
- State Key Laboratory of Analytical
Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic
Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Shouyun Yu
- State Key Laboratory of Analytical
Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic
Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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21
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Darabi HR, Khatamifar E, Sharifi A, Aghapoor K, Jadidi K. A divergent McMurry coupling of the bis-salisaldehyde with methylene linker: The characterization of a key by-product with the possible pathway formation. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2016.1265984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Hossein Reza Darabi
- Nano and Organic Synthesis Laboratory, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran
| | - Ehsan Khatamifar
- Nano and Organic Synthesis Laboratory, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran
| | - Ali Sharifi
- Nano and Organic Synthesis Laboratory, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran
| | - Kioumars Aghapoor
- Nano and Organic Synthesis Laboratory, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran
| | - Khosrow Jadidi
- Department of Chemistry, Shahid Beheshti University, Tehran, Iran
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22
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23
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Sotto N, Cazorla C, Villette C, Billamboz M, Len C. Selective Pinacol-Coupling Reaction using a Continuous Flow System. J Org Chem 2016; 81:11065-11071. [PMID: 27779883 DOI: 10.1021/acs.joc.6b02069] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The first continuous flow pinacol coupling reaction of carbonyl compounds was successfully achieved within only 2 min during a single pass through a cartridge filled with zinc(0). The optimized method allowed the efficient production of gram-scale value-added compounds with high productivity. The developed methodology is efficient for aromatic or α,β-unsaturated aldehydes but gives moderate results for more stable acetophenone derivatives. Moreover, the flow method displayed better results in terms of yield and selectivity in comparison to the corresponding batch methodology.
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Affiliation(s)
- Nicolas Sotto
- Sorbonne Universités, Université de Technologie de Compiègne , Centre de Recherche Royallieu, CS 60 319, F-60203 Compiègne cedex, France
| | - Clément Cazorla
- Sorbonne Universités, Université de Technologie de Compiègne , Centre de Recherche Royallieu, CS 60 319, F-60203 Compiègne cedex, France
| | - Carole Villette
- Ecole Supérieure de Chimie Organique et Minérale , 1 rue du Réseau Jean-Marie Buckmaster, F-60200 Compiègne, France
| | - Muriel Billamboz
- Ecole Supérieure de Chimie Organique et Minérale , 1 rue du Réseau Jean-Marie Buckmaster, F-60200 Compiègne, France
| | - Christophe Len
- Sorbonne Universités, Université de Technologie de Compiègne , Centre de Recherche Royallieu, CS 60 319, F-60203 Compiègne cedex, France
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24
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Qi L, Chen Y. Polarity-Reversed Allylations of Aldehydes, Ketones, and Imines Enabled by Hantzsch Ester in Photoredox Catalysis. Angew Chem Int Ed Engl 2016; 55:13312-13315. [DOI: 10.1002/anie.201607813] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Indexed: 12/16/2022]
Affiliation(s)
- Li Qi
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Yiyun Chen
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
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25
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Qi L, Chen Y. Polarity-Reversed Allylations of Aldehydes, Ketones, and Imines Enabled by Hantzsch Ester in Photoredox Catalysis. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607813] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Li Qi
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Yiyun Chen
- State Key Laboratory of Bioorganic and Natural Products Chemistry; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
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26
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Tang X, Studer A. Sodium-Ketyl Radical Anions by Reverse Pinacol Reaction and Their Coupling with Iodoarenes. Org Lett 2016; 18:4448-50. [PMID: 27518325 DOI: 10.1021/acs.orglett.6b02184] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Transition-metal-free C-C bond formation between aryl iodides and pinacols is presented. Pinacols are readily transformed by deprotonation with NaH to their Na-pinacolates. C-C-bond homolysis at room temperature generates in situ the corresponding Na-ketyl radical anions which react with various aryl iodides in a homolytic aromatic substitution reaction to form tertiary Na-alcoholates. Protonation eventually provides tertiary alcohols in an unprecedented route.
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Affiliation(s)
- Xinjun Tang
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität , Corrensstraße 40, 48149 Münster, Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität , Corrensstraße 40, 48149 Münster, Germany
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27
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Affiliation(s)
- Yingxiao Cai
- Laboratoire de Chimie Moléculaire, CNRS, Ecole polytechnique; Université Paris-Saclay; 91128 Palaiseau Cedex France
| | - Xin Qian
- Laboratoire de Chimie Moléculaire, CNRS, Ecole polytechnique; Université Paris-Saclay; 91128 Palaiseau Cedex France
| | - Corinne Gosmini
- Laboratoire de Chimie Moléculaire, CNRS, Ecole polytechnique; Université Paris-Saclay; 91128 Palaiseau Cedex France
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28
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Horwitz MA, Zavesky BP, Martinez-Alvarado JI, Johnson JS. Asymmetric Organocatalytic Reductive Coupling Reactions between Benzylidene Pyruvates and Aldehydes. Org Lett 2015; 18:36-9. [PMID: 26667068 DOI: 10.1021/acs.orglett.5b03127] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An organocatalytic three-component reductive coupling reaction between dimethyl phosphite, benzylidene pyruvates, and aldehydes is reported. A chiral triaryliminophosphorane catalyst promotes Pudovik addition, which is followed by phospha-Brook rearrangement to transiently generate enolates that are trapped stereoselectively by aldehydes. This reductive coupling provides vicinal polyfunctionalized stereocenters from readily available prochiral starting materials with excellent diastereoselectivity, enantioselectivity, and yield.
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Affiliation(s)
- Matthew A Horwitz
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Blane P Zavesky
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Jesus I Martinez-Alvarado
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Jeffrey S Johnson
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
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29
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Jahn E, Smrček J, Pohl R, Císařová I, Jones PG, Jahn U. Facile and Highly Diastereoselective Synthesis ofsyn- andcis-1,2-Diol Derivatives from Protected α-Hydroxy Ketones. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501174] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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30
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Horwitz MA, Tanaka N, Yokosaka T, Uraguchi D, Johnson JS, Ooi T. Enantioselective reductive multicomponent coupling reactions between isatins and aldehydes. Chem Sci 2015; 6:6086-6090. [PMID: 26508995 PMCID: PMC4618493 DOI: 10.1039/c5sc02170g] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 07/23/2015] [Indexed: 12/24/2022] Open
Abstract
A metal-free stereoselective reductive coupling reaction between isatins and aldehydes is reported. The reaction relies on commercial diethyl phosphite (∼€70 kg-1) as the stoichiometric reductant. Base-catalyzed Pudovik addition and phosphonate/phosphate rearrangement achieved polarity inversion on the isatin, and the derived carbanions were trapped by aldehydes with subsequent dialkoxyphosphinyl migration. Chiral iminophosphoranes were used as basic catalysts to achieve high diastereo- and enantioselectivities with excellent yields.
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Affiliation(s)
- Matthew A. Horwitz
- Department of Chemistry
, The University of North Carolina at Chapel Hill
,
Chapel Hill
, NC 27599
, USA
.
| | - Naoya Tanaka
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Applied Chemistry
, Graduate School of Engineering
, Nagoya University
,
Furo-cho D2-1, Chikusa
, Nagoya 464-8602
, Japan
.
| | - Takuya Yokosaka
- Department of Chemistry
, The University of North Carolina at Chapel Hill
,
Chapel Hill
, NC 27599
, USA
.
| | - Daisuke Uraguchi
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Applied Chemistry
, Graduate School of Engineering
, Nagoya University
,
Furo-cho D2-1, Chikusa
, Nagoya 464-8602
, Japan
.
| | - Jeffrey S. Johnson
- Department of Chemistry
, The University of North Carolina at Chapel Hill
,
Chapel Hill
, NC 27599
, USA
.
| | - Takashi Ooi
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Applied Chemistry
, Graduate School of Engineering
, Nagoya University
,
Furo-cho D2-1, Chikusa
, Nagoya 464-8602
, Japan
.
- CREST
, Japan Science and Technology Agency (JST)
, Nagoya University
,
Nagoya 464-8603
, Japan
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31
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Yoshimura A, Saeki T, Nomoto A, Ogawa A. Pinacol couplings of a series of aldehydes and ketones with SmI2/Sm/Me3SiCl in DME. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.06.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Sotto N, Billamboz M, Chevrin-Villette C, Len C. Selective Pinacol Coupling on Regeneratable Supported Acids in Sole Water. J Org Chem 2015; 80:6375-80. [PMID: 26007679 DOI: 10.1021/acs.joc.5b00837] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Nicolas Sotto
- Sorbonne
Universités, Université de Technologie de Compiègne,
Ecole Supérieure de Chimie Organique et Minérale, EA
4297 Transformations Intégrées de la Matière
Renouvelable, Centre de Recherche Royallieu, CS 60 319, F-60203 Compiègnecedex, France
| | - Muriel Billamboz
- Sorbonne
Universités, Université de Technologie de Compiègne,
Ecole Supérieure de Chimie Organique et Minérale, EA
4297 Transformations Intégrées de la Matière
Renouvelable, Centre de Recherche Royallieu, CS 60 319, F-60203 Compiègnecedex, France
| | - Carole Chevrin-Villette
- Sorbonne
Universités, Université de Technologie de Compiègne,
Ecole Supérieure de Chimie Organique et Minérale, EA
4297 Transformations Intégrées de la Matière
Renouvelable, Centre de Recherche Royallieu, CS 60 319, F-60203 Compiègnecedex, France
| | - Christophe Len
- Sorbonne
Universités, Université de Technologie de Compiègne,
Ecole Supérieure de Chimie Organique et Minérale, EA
4297 Transformations Intégrées de la Matière
Renouvelable, Centre de Recherche Royallieu, CS 60 319, F-60203 Compiègnecedex, France
- Departement
of Chemistry, University of Hull, Hull 6 HU6 7RX, England
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33
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Christmann M, Hu J, Kitamura M, Stoltz B. Tetrahedron reports on organic chemistry. Tetrahedron 2015. [DOI: 10.1016/s0040-4020(15)00744-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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34
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Billamboz M, Len C. First pinacol coupling in emulsified water: key role of surfactant and impact of alternative activation technologies. CHEMSUSCHEM 2015; 8:1664-1675. [PMID: 25776253 DOI: 10.1002/cssc.201500108] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Indexed: 06/04/2023]
Abstract
For the first time, the influence of surfactants on the radical pinacol coupling reaction is investigated. The rate and selectivity of this reductive C-C coupling are compared under three different activation technologies: thermal activation, microwave irradiation, and sonication. The use of IgepalCO520, a neutral surfactant, led to the successful conversion of aromatic or α,β-unsaturated aliphatic carbonyl compounds in moderate to excellent yield (55-90 %). An insight on the potential mechanism involved in the reaction is also proposed, based on microscopic observations and particle size measurement.
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Affiliation(s)
- Muriel Billamboz
- Sorbonne Universités, Université de Technologie de Compiègne, Ecole Supérieure de Chimie Organique et Minérale, EA 4297 Transformations Intégrées de la Matière Renouvelable, Centre de Recherche Royallieu, CS 60 319, F-60203 Compiègne cedex (France)
| | - Christophe Len
- Sorbonne Universités, Université de Technologie de Compiègne, Ecole Supérieure de Chimie Organique et Minérale, EA 4297 Transformations Intégrées de la Matière Renouvelable, Centre de Recherche Royallieu, CS 60 319, F-60203 Compiègne cedex (France).
- Department of Chemistry, University of Hull, Hull HU6 7RX (England).
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35
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Frey G, Hausmann JN, Streuff J. Titanium-catalyzed reductive umpolung reactions with a metal-free terminal reducing agent. Chemistry 2015; 21:5693-6. [PMID: 25712472 DOI: 10.1002/chem.201500102] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Indexed: 11/07/2022]
Abstract
A new method for titanium-catalyzed reductive umpolung reactions is reported that overcomes the traditional requirement for a stoichiometric metallic reductant. With N,N'-disilylated tetramethyldihydropyrazine as a potent organic reducing agent, reductive carbonyl-nitrile, enone-acrylonitrile and pinacol coupling reactions can be achieved in good yields and stereoselectivities. [Cp2TiI2] is a superior catalyst to [Cp2TiCl2], which is rationalized by a faster generation of the active catalyst [Cp2TiI]. A mechanism is proposed that is in agreement with the experimental results.
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Affiliation(s)
- Georg Frey
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, 79104 Freiburg (Germany), Fax: (+49) 761-203-8715
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36
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Billamboz M, Sotto N, Chevrin-Villette C, Len C. Simple and expeditious pinacol coupling of non usual α,β-unsaturated carbonyl compounds in water. RSC Adv 2015. [DOI: 10.1039/c5ra03870g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Using zinc (0) in a 5% v AcOH aqueous solution allowed the efficient pinacol coupling of aliphatic or aromatic unusual, α,β-unsaturated carbonyl compounds such as citral A in good to excellent yields (56–99%).
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Affiliation(s)
- Muriel Billamboz
- Sorbonne Universités
- Université de Technologie de Compiègne
- Ecole Supérieure de Chimie Organique et Minérale
- EA 4297 Transformations Intégrées de la Matière Renouvelable
- Centre de Recherches de Royallieu
| | - Nicolas Sotto
- Sorbonne Universités
- Université de Technologie de Compiègne
- Ecole Supérieure de Chimie Organique et Minérale
- EA 4297 Transformations Intégrées de la Matière Renouvelable
- Centre de Recherches de Royallieu
| | - Carole Chevrin-Villette
- Sorbonne Universités
- Université de Technologie de Compiègne
- Ecole Supérieure de Chimie Organique et Minérale
- EA 4297 Transformations Intégrées de la Matière Renouvelable
- Centre de Recherches de Royallieu
| | - Christophe Len
- Sorbonne Universités
- Université de Technologie de Compiègne
- Ecole Supérieure de Chimie Organique et Minérale
- EA 4297 Transformations Intégrées de la Matière Renouvelable
- Centre de Recherches de Royallieu
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37
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Everson D, Weix DJ. Cross-electrophile coupling: principles of reactivity and selectivity. J Org Chem 2014; 79:4793-8. [PMID: 24820397 PMCID: PMC4049235 DOI: 10.1021/jo500507s] [Citation(s) in RCA: 411] [Impact Index Per Article: 41.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Indexed: 12/12/2022]
Abstract
A critical overview of the catalytic joining of two different electrophiles, cross-electrophile coupling (XEC), is presented with an emphasis on the central challenge of cross-selectivity. Recent synthetic advances and mechanistic studies have shed light on four possible methods for overcoming this challenge: (1) employing an excess of one reagent; (2) electronic differentiation of starting materials; (3) catalyst-substrate steric matching; and (4) radical chain processes. Each method is described using examples from the recent literature.
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Affiliation(s)
- Daniel
A. Everson
- Department
of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Daniel J. Weix
- Department
of Chemistry, University of Rochester, Rochester, New York 14627-0216, United States
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38
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Zhang N, Samanta SR, Rosen BM, Percec V. Single Electron Transfer in Radical Ion and Radical-Mediated Organic, Materials and Polymer Synthesis. Chem Rev 2014; 114:5848-958. [DOI: 10.1021/cr400689s] [Citation(s) in RCA: 320] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Na Zhang
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Shampa R. Samanta
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Brad M. Rosen
- DuPont Titanium Technologies, Chestnut Run Plaza, Wilmington, Delaware 19805, United States
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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39
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Miyasaka A, Amaya T, Hirao T. Synthesis of Heterodinuclear Hemisalen Complexes on a Hexaarylbenzene Scaffold and their Application for the Cross-Pinacol Coupling Reaction. Chemistry 2014; 20:1615-21. [DOI: 10.1002/chem.201303946] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Indexed: 11/11/2022]
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40
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Kim YJ, Kim SM, Hosono H, Yang JW, Kim SW. The scalable pinacol coupling reaction utilizing the inorganic electride [Ca2N]+·e− as an electron donor. Chem Commun (Camb) 2014; 50:4791-4. [DOI: 10.1039/c4cc00802b] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An inorganic electride [Ca2N]+·e− is used as an efficient electron donor for the scalable pinacol coupling reaction with a high yield.
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Affiliation(s)
- Ye Ji Kim
- Department of Energy Science
- Sungkyunkwan University
- Suwon 440-746, Republic of Korea
- IBS Center for Integrated Nanostructure Physics
- Institute for Basic Science
| | - Sun Min Kim
- Department of Energy Science
- Sungkyunkwan University
- Suwon 440-746, Republic of Korea
| | - Hideo Hosono
- Materials and Structures Laboratory
- Tokyo Institute of Technology
- Yokohama 226-8503, Japan
| | - Jung Woon Yang
- Department of Energy Science
- Sungkyunkwan University
- Suwon 440-746, Republic of Korea
| | - Sung Wng Kim
- Department of Energy Science
- Sungkyunkwan University
- Suwon 440-746, Republic of Korea
- IBS Center for Integrated Nanostructure Physics
- Institute for Basic Science
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41
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Lu H, Zhao B, Zhang D, Lv Y, Shi B, Shi X, Wen J, Yao J, Zhu Z. Room temperature aqueous solution synthesis of pinacol (C6) by photocatalytic CC coupling of isopropanol. J Photochem Photobiol A Chem 2013. [DOI: 10.1016/j.jphotochem.2013.08.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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42
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Stoltz B, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2013. [DOI: 10.1016/s0040-4020(13)01252-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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43
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Novel tetradentate bisoxazoline ligands from l-serine and β-DDB for asymmetric pinacol coupling reactions of aromatic aldehydes. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.05.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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44
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Zhou W, Marquard SL, Bezpalko MW, Foxman BM, Thomas CM. Catalytic Hydrosilylation of Ketones Using a Co/Zr Heterobimetallic Complex: Evidence for an Unusual Mechanism Involving Ketyl Radicals. Organometallics 2013. [DOI: 10.1021/om301194g] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Wen Zhou
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts,
02454, United States
| | - Seth L. Marquard
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts,
02454, United States
| | - Mark W. Bezpalko
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts,
02454, United States
| | - Bruce M. Foxman
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts,
02454, United States
| | - Christine M. Thomas
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts,
02454, United States
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45
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Rossi B, Prosperini S, Pastori N, Clerici A, Punta C. New advances in titanium-mediated free radical reactions. Molecules 2012; 17:14700-32. [PMID: 23519248 PMCID: PMC6268425 DOI: 10.3390/molecules171214700] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 11/28/2012] [Accepted: 12/06/2012] [Indexed: 01/11/2023] Open
Abstract
Titanium complexes have been widely used as catalysts for C‑C bond-forming processes via free-radical routes. Herein we provide an overview of some of the most significant contributions in the field, that covers the last decade, emphasizing the key role played by titanium salts in the promotion of selective reactions aimed at the synthesis of multifunctional organic compounds, including nucleophilic radical additions to imines, pinacol and coupling reactions, ring opening of epoxides and living polymerization.
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Affiliation(s)
- Bianca Rossi
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico di Milano, P.zza Leonardo da Vinci 32, 20133 Milano, Italy; E-Mails: (B.R.); (S.P.); (N.P.); (A.C.)
| | - Simona Prosperini
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico di Milano, P.zza Leonardo da Vinci 32, 20133 Milano, Italy; E-Mails: (B.R.); (S.P.); (N.P.); (A.C.)
- INSTM (National Consortium for Materials Science and Technology) Local Unit, Politecnico di Milano, 20133 Milan, Italy
| | - Nadia Pastori
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico di Milano, P.zza Leonardo da Vinci 32, 20133 Milano, Italy; E-Mails: (B.R.); (S.P.); (N.P.); (A.C.)
| | - Angelo Clerici
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico di Milano, P.zza Leonardo da Vinci 32, 20133 Milano, Italy; E-Mails: (B.R.); (S.P.); (N.P.); (A.C.)
| | - Carlo Punta
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico di Milano, P.zza Leonardo da Vinci 32, 20133 Milano, Italy; E-Mails: (B.R.); (S.P.); (N.P.); (A.C.)
- INSTM (National Consortium for Materials Science and Technology) Local Unit, Politecnico di Milano, 20133 Milan, Italy
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46
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Scheffler U, Stößer R, Mahrwald R. Retropinacol/Cross-Pinacol Coupling Reactions - A Catalytic Access to 1,2-Unsymmetrical Diols. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200358] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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47
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Lei H, Royer AM, Rauchfuss TB, Gray D. C2-Symmetric Iron(II) Diphosphine–Dialkoxide Dicarbonyl and Related Complexes. Organometallics 2012. [DOI: 10.1021/om300631a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hao Lei
- School of Chemical Sciences, University of Illinois, Urbana, Illinois 61801, United States
| | - Aaron M. Royer
- School of Chemical Sciences, University of Illinois, Urbana, Illinois 61801, United States
| | - Thomas B. Rauchfuss
- School of Chemical Sciences, University of Illinois, Urbana, Illinois 61801, United States
| | - Danielle Gray
- School of Chemical Sciences, University of Illinois, Urbana, Illinois 61801, United States
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48
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Liquid phase aerobic oxidation of benzyl alcohol over Pd and Rh catalysts on N-doped mesoporous carbon: Effect of the surface acido-basicity. CATAL COMMUN 2012. [DOI: 10.1016/j.catcom.2012.04.005] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Abad A, López-Pérez JL, del Olmo E, García-Fernández LF, Francesch A, Trigili C, Barasoain I, Andreu JM, Díaz JF, San Feliciano A. Synthesis and Antimitotic and Tubulin Interaction Profiles of Novel Pinacol Derivatives of Podophyllotoxins. J Med Chem 2012; 55:6724-37. [DOI: 10.1021/jm2017573] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Andrés Abad
- Departamento de Química
Farmacéutica, Facultad de Farmacia-CIETUS, Campus Unamuno, Universidad de Salamanca, 37007 Salamanca, Spain
- Departamento de Química,
Facultad de Ciencias, Universidad de Los Andes, Mérida, Venezuela
| | - José L. López-Pérez
- Departamento de Química
Farmacéutica, Facultad de Farmacia-CIETUS, Campus Unamuno, Universidad de Salamanca, 37007 Salamanca, Spain
| | - Esther del Olmo
- Departamento de Química
Farmacéutica, Facultad de Farmacia-CIETUS, Campus Unamuno, Universidad de Salamanca, 37007 Salamanca, Spain
| | | | - Andrés Francesch
- PharmaMar SA, P. I. La Mina, 28770 Colmenar
Viejo, Madrid, Spain
| | - Chiara Trigili
- Centro de Investigaciones Biológicas, CSIC,
28006 Madrid, Spain
| | | | - José M. Andreu
- Centro de Investigaciones Biológicas, CSIC,
28006 Madrid, Spain
| | | | - Arturo San Feliciano
- Departamento de Química
Farmacéutica, Facultad de Farmacia-CIETUS, Campus Unamuno, Universidad de Salamanca, 37007 Salamanca, Spain
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Postigo A, Nudelman NS. Synthetically useful metal-mediated radical transformations in water and aqueous media. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2011.07.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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