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Teymori A, Sedaghat A, Kobarfard F. Ca-mediated Nenitzescu synthesis of 5-hydroxyindoles. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02463-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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2
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Orr SA, Andrews PC, Blair VL. Main Group Metal-Mediated Transformations of Imines. Chemistry 2021; 27:2569-2588. [PMID: 32761667 DOI: 10.1002/chem.202003108] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/02/2020] [Indexed: 12/20/2022]
Abstract
Main-group-metal-mediated transformations of imines have earned a valued place in the synthetic chemist's toolbox. Their versatility allows the simple preparation of various nitrogen containing compounds. This review will outline the early discoveries including metallation, addition/cyclisation and metathesis pathways, followed by the modern-day use of imines in synthetic methodology. Recent advances in imine C-F activation protocols are discussed, alongside revisiting "classic" imine reactivity from a sustainable perspective. Developments in catalytic methods for hydroelementation of imines have been reviewed, highlighting the importance of s-block metals in the catalytic arena. Whilst stoichiometric transformations in alternative reaction media such as deep eutectic solvents or water have been summarised. The incorporation of imines into flow chemistry has received recent attention and is summarised within.
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Affiliation(s)
- Samantha A Orr
- School of Chemistry, Monash University, Wellington Road, Clayton, Melbourne, VIC, 3800, Australia
| | - Philip C Andrews
- School of Chemistry, Monash University, Wellington Road, Clayton, Melbourne, VIC, 3800, Australia
| | - Victoria L Blair
- School of Chemistry, Monash University, Wellington Road, Clayton, Melbourne, VIC, 3800, Australia
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3
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Brand S, Causero A, Elsen H, Pahl J, Langer J, Harder S. Ligand Effects in Calcium Catalyzed Ketone Hydroboration. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000264] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Steffen Brand
- Inorganic and Organometallic Chemistry University Erlangen‐Nürnberg Egerlandstrasse 1 91058 Erlangen Germany
| | - Andrea Causero
- Inorganic and Organometallic Chemistry University Erlangen‐Nürnberg Egerlandstrasse 1 91058 Erlangen Germany
| | - Holger Elsen
- Inorganic and Organometallic Chemistry University Erlangen‐Nürnberg Egerlandstrasse 1 91058 Erlangen Germany
| | - Jürgen Pahl
- Inorganic and Organometallic Chemistry University Erlangen‐Nürnberg Egerlandstrasse 1 91058 Erlangen Germany
| | - Jens Langer
- Inorganic and Organometallic Chemistry University Erlangen‐Nürnberg Egerlandstrasse 1 91058 Erlangen Germany
| | - Sjoerd Harder
- Inorganic and Organometallic Chemistry University Erlangen‐Nürnberg Egerlandstrasse 1 91058 Erlangen Germany
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4
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Wang H, Tian D, Meng Z, Chen Z, Xue F, Liu XY, Song H, Qin Y. Synthetic progress toward the marine natural product zamamiphidin A. RSC Adv 2020; 10:11903-11906. [PMID: 35496609 PMCID: PMC9050630 DOI: 10.1039/d0ra01580f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 03/18/2020] [Indexed: 11/21/2022] Open
Abstract
An asymmetric synthetic approach to the octahydrofuro[3,4-b]pyridine framework of marine natural product zamamiphidin A has been described. The key steps include an asymmetric Michael addition of (R)-N-tert-butanesulfinyl imidate with enamidomalonate to install the C10 stereocenter, an intramolecular alkoxide exchange/Michael addition/hydrogenation sequence to construct the bicyclic ring system. An asymmetric synthetic approach to the octahydrofuro[3,4-b]pyridine framework of marine natural product zamamiphidin A has been described.![]()
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Affiliation(s)
- Hao Wang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University Chongqing 401331 P. R. China
| | - Di Tian
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug, Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University Chengdu 610041 P. R. China
| | - Zhaoxiang Meng
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug, Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University Chengdu 610041 P. R. China
| | - Zhihao Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug, Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University Chengdu 610041 P. R. China
| | - Fei Xue
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug, Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University Chengdu 610041 P. R. China
| | - Xiao-Yu Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug, Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University Chengdu 610041 P. R. China
| | - Hao Song
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug, Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University Chengdu 610041 P. R. China
| | - Yong Qin
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug, Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University Chengdu 610041 P. R. China
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5
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Xie P, Fu W, Wu Y, Cai X, Sun Z, Li S, Gao C, Yang X, Loh TP. Allylic Phosphorus Ylides Directly Generated from Alcohols with Water as the Only Byproduct. Org Lett 2019; 21:4168-4172. [DOI: 10.1021/acs.orglett.9b01349] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Peizhong Xie
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Weishan Fu
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Ying Wu
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Xinying Cai
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Zuolian Sun
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Shuangshuang Li
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Cuiqing Gao
- Co-Innovation Center for the Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China
| | - Xiaobo Yang
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Teck-Peng Loh
- School of Chemistry and Molecular Engineering, Institute of Advanced Synthesis, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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6
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Maejima S, Yamaguchi E, Itoh A. trans-Diastereoselective Syntheses of γ-Lactones by Visible Light-Iodine-Mediated Carboesterification of Alkenes. ACS OMEGA 2019; 4:4856-4870. [PMID: 31459670 PMCID: PMC6648839 DOI: 10.1021/acsomega.9b00333] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 02/21/2019] [Indexed: 05/08/2023]
Abstract
This study aims to develop an intermolecular lactonization reaction of alkenes with carbonyls mediated by visible light and molecular iodine. The one-step reaction involved the carboesterification of alkenes to produce the corresponding lactones in moderate to good yield. It was also revealed that it is possible to control the diastereoselectivity of the reaction by altering the base used and the reaction conditions. When water was added as a solvent, the reaction resulted in the formation of lactones with trans-selectivity. A mechanistic investigation was undertaken and it was found that the reaction requires the generation of an iodine radical from molecular iodine, driven by visible light irradiation, and proceeds via the formation of an iodine radical alkene adduct. The proposed reaction is an example of a rare-metal free intermolecular addition cyclization reaction, which is an environment-friendly chemical process that only uses molecular iodine. In addition, since diastereoselectivity was observed without the use of any specific reagents, the developed methodology is an example of a novel stereoselective transformation using only cost-effective reagents.
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7
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Rohit KR, Ujwaldev SM, Saranya S, Anilkumar G. Recent Advances in the Creation of Asymmetric Carbon Centre(s) by Generation of Carbon‐Heteroatom Bond(s) Using Metal‐Pybox Complexes. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800488] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- K. R. Rohit
- School of Chemical SciencesMahatma Gandhi University Priyadarsini Hills P O Kottayam 686 560 INDIA
| | | | - Salim Saranya
- School of Chemical SciencesMahatma Gandhi University Priyadarsini Hills P O Kottayam 686 560 INDIA
| | - Gopinathan Anilkumar
- School of Chemical SciencesMahatma Gandhi University Priyadarsini Hills P O Kottayam 686 560 INDIA
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8
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Yamashita Y, Macor JA, Fushimi S, Tsubogo T, Kobayashi S. Chiral Calcium-Catalyzed Asymmetric Epoxidation Reactions Using Hydrogen Peroxide as the Terminal Oxidant. Chem Pharm Bull (Tokyo) 2018; 66:847-850. [PMID: 30175740 DOI: 10.1248/cpb.c18-00485] [Citation(s) in RCA: 2] [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
Asymmetric epoxidation reactions of chalcone derivatives catalyzed by chiral calcium complexes using hydrogen peroxide were developed. The epoxidation reactions proceeded smoothly to afford the desired products in good yields with good enantioselectivities. This is the first example of chiral calcium-catalyzed asymmetric epoxidation reactions using hydrogen peroxide as the terminal oxidant.
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Affiliation(s)
| | | | - Seiya Fushimi
- Department of Chemistry, School of Science, The University of Tokyo
| | - Tetsu Tsubogo
- Green & Sustainable Chemistry Cooperation Laboratory, Graduate School of Science, The University of Tokyo
| | - Shū Kobayashi
- Department of Chemistry, School of Science, The University of Tokyo.,Green & Sustainable Chemistry Cooperation Laboratory, Graduate School of Science, The University of Tokyo
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9
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Yu L, Qian R, Deng X, Wang F, Xu Q. Calcium-catalyzed reactions of element-H bonds. Sci Bull (Beijing) 2018; 63:1010-1016. [PMID: 36658887 DOI: 10.1016/j.scib.2018.06.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 05/27/2018] [Accepted: 05/28/2018] [Indexed: 01/21/2023]
Abstract
Investigation on organocalcium catalysis is just unfolding during the past decade. Beside conventional Ca salts with strong electron-withdrawing counter anions that may serve as Lewis acid catalysts, many Ca complexes have also been designed recently and found to be good catalysts in activation of element-H (EH) bonds like transition metal catalysts. These findings are interesting and may attract the interest of the chemists. Due to the great abundance, non-toxicity, and biocompatible features of Ca element, Ca-catalyzed reactions can be of great significance from the viewpoint of industry. This short review summarizes the recent advances on Ca-catalyzed reactions of EH bonds. We hope that it may provide a useful guide for interested readers from both the academy and industry.
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Affiliation(s)
- Lei Yu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
| | | | - Xin Deng
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Fang Wang
- Yangzhou Polytechnology Institute, Yangzhou 225127, China
| | - Qing Xu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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10
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Ošeka M, Kimm M, Järving I, Lippur K, Kanger T. Two Catalytic Methods of an Asymmetric Wittig [2,3]-Rearrangement. J Org Chem 2017; 82:2889-2897. [PMID: 28225271 DOI: 10.1021/acs.joc.6b02786] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Two different approaches for asymmetric catalytic Wittig [2,3]-rearrangement were developed. Allyloxymalonate derivatives were converted into homoallyl alcohols via organocatalytic or Ca2+-catalyzed pathways in moderate to high enantioselectivities.
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Affiliation(s)
- Maksim Ošeka
- Department of Chemistry, Tallinn University of Technology , Akadeemia tee 15, 12618 Tallinn, Estonia
| | - Mariliis Kimm
- Department of Chemistry, Tallinn University of Technology , Akadeemia tee 15, 12618 Tallinn, Estonia
| | - Ivar Järving
- Department of Chemistry, Tallinn University of Technology , Akadeemia tee 15, 12618 Tallinn, Estonia
| | - Kristin Lippur
- Department of Chemistry, Tallinn University of Technology , Akadeemia tee 15, 12618 Tallinn, Estonia
| | - Tõnis Kanger
- Department of Chemistry, Tallinn University of Technology , Akadeemia tee 15, 12618 Tallinn, Estonia
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11
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Yang Y, Wang H, Ma H. Unprecedented Reaction Pathway of Sterically Crowded Calcium Complexes: Sequential C−N Bond Cleavage Reactions Induced by C−H Bond Activations. Chem Asian J 2016; 12:239-247. [DOI: 10.1002/asia.201601497] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 11/28/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Yang Yang
- Shanghai Key Laboratory of Functional Materials Chemistry and Laboratory of Organometallic Chemistry; School of Chemistry & Molecular Engineering; East China University of Science and Technology; P.O. Box 310, 130 Meilong Road 200237 Shanghai P.R. China
| | - Haobing Wang
- Shanghai Key Laboratory of Functional Materials Chemistry and Laboratory of Organometallic Chemistry; School of Chemistry & Molecular Engineering; East China University of Science and Technology; P.O. Box 310, 130 Meilong Road 200237 Shanghai P.R. China
| | - Haiyan Ma
- Shanghai Key Laboratory of Functional Materials Chemistry and Laboratory of Organometallic Chemistry; School of Chemistry & Molecular Engineering; East China University of Science and Technology; P.O. Box 310, 130 Meilong Road 200237 Shanghai P.R. China
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12
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Wilkins LC, Melen RL. Enantioselective Main Group Catalysis: Modern Catalysts for Organic Transformations. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.07.011] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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Kobayashi S. Flow "Fine" Synthesis: High Yielding and Selective Organic Synthesis by Flow Methods. Chem Asian J 2016; 11:425-36. [PMID: 26337828 PMCID: PMC4770433 DOI: 10.1002/asia.201500916] [Citation(s) in RCA: 167] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Indexed: 01/15/2023]
Abstract
The concept of flow "fine" synthesis, that is, high yielding and selective organic synthesis by flow methods, is described. Some examples of flow "fine" synthesis of natural products and APIs are discussed. Flow methods have several advantages over batch methods in terms of environmental compatibility, efficiency, and safety. However, synthesis by flow methods is more difficult than synthesis by batch methods. Indeed, it has been considered that synthesis by flow methods can be applicable for the production of simple gasses but that it is difficult to apply to the synthesis of complex molecules such as natural products and APIs. Therefore, organic synthesis of such complex molecules has been conducted by batch methods. On the other hand, syntheses and reactions that attain high yields and high selectivities by flow methods are increasingly reported. Flow methods are leading candidates for the next generation of manufacturing methods that can mitigate environmental concerns toward sustainable society.
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Affiliation(s)
- Shū Kobayashi
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
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14
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Lippur K, Kaabel S, Järving I, Rissanen K, Kanger T. CaCl2, Bisoxazoline, and Malonate: A Protocol for an Asymmetric Michael Reaction. J Org Chem 2015; 80:6336-41. [PMID: 26035234 DOI: 10.1021/acs.joc.5b00769] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A mild protocol for the asymmetric Michael addition of dimethyl malonate to various α,β-unsaturated carbonyl compounds was developed. The salient feature of this methodology is that a cheap and environmentally friendly Lewis acid, CaCl2, was used as a catalyst. An aminoindanol- and pyridine-derived ligand provided in the presence of CaCl2 Michael adducts in moderate to high enantioselectivities. The scope of the reaction was demonstrated.
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Affiliation(s)
- Kristin Lippur
- †Department of Chemistry, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia
| | - Sandra Kaabel
- †Department of Chemistry, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia.,‡Department of Chemistry, Nanoscience Center, University of Jyvaskyla, P.O. Box 35, FI-40014 Jyvaskyla, Finland
| | - Ivar Järving
- †Department of Chemistry, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia
| | - Kari Rissanen
- ‡Department of Chemistry, Nanoscience Center, University of Jyvaskyla, P.O. Box 35, FI-40014 Jyvaskyla, Finland
| | - Tõnis Kanger
- †Department of Chemistry, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia
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15
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Shimizu S, Tsubogo T, Xu P, Kobayashi S. Calcium-Catalyzed Asymmetric Synthesis of 3-Tetrasubstituted Oxindoles: Efficient Construction of Adjacent Quaternary and Tertiary Chiral Centers. Org Lett 2015; 17:2006-9. [DOI: 10.1021/acs.orglett.5b00749] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Shota Shimizu
- Department of Chemistry,
School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tetsu Tsubogo
- Department of Chemistry,
School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Pengyu Xu
- Department of Chemistry,
School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shu̅ Kobayashi
- Department of Chemistry,
School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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16
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Chiral Alkaline Earth Metal Complexes in Asymmetric Catalysis. TOP ORGANOMETAL CHEM 2015. [DOI: 10.1007/3418_2015_144] [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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17
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Tsubogo T, Yamashita Y, Kobayashi S. Calcium Chloride (CaCl2) as Catalyst for Asymmetric Organic Reactions. Top Catal 2014. [DOI: 10.1007/s11244-014-0254-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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18
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Takechi S, Kumagai N, Shibasaki M. Direct catalytic asymmetric Mannich-type reaction of α-sulfanyl lactones. Org Lett 2013; 15:2632-5. [PMID: 23668476 DOI: 10.1021/ol4008734] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Catalytic asymmetric Mannich-type reactions of α-sulfanyl lactones to aldimines were promoted by a chiral Ag complex/DBU binary catalyst. The reaction proceeded in a syn-selective manner in high enantioselectivity. Alkylative activation of the sulfide of the Mannich adduct allowed for the formation of trisubstituted aziridines.
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Affiliation(s)
- Sho Takechi
- Institute of Microbial Chemistry (BIKAKEN), Tokyo, 3-14-23 Kamiosaki, Tokyo 141-0021, Japan
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