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1
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Lu B, Wu X, Li C, Ding G, Li W, Xie X, Zhang Z. Highly Diastereo- and Enantioselective Access to syn-α-Amido β-Hydroxy Esters via Ruthenium-Catalyzed Dynamic Kinetic Resolution-Asymmetric Hydrogenation. J Org Chem 2019; 84:3201-3213. [PMID: 30776889 DOI: 10.1021/acs.joc.8b03106] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Dynamic kinetic resolution (DKR) of racemic aryl α-amino β-ketoesters via Ru-diphosphine-catalyzed asymmetric hydrogenation was realized at 70 °C under 50 atm of hydrogen, affording syn α-amido β-hydroxy esters in high yields (up to 96%) with high reactivity (TON up to 940) and diastereo- and enantioselectivities (up to 99:1 dr, 98% ee). These hydrogenation products provide valuable chiral synthons in many natural products and pharmaceuticals. Gram-scale DKR asymmetric hydrogenation (DKR-AH) was also performed with retained reactivity and stereoselectivity, revealing the synthetic utility of this method.
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Affiliation(s)
- Bin Lu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Xiaoyu Wu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Chengyang Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Guangni Ding
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Wanfang Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Xiaomin Xie
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Zhaoguo Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China.,Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
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2
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Zou LH, Li YC, Li PG, Zhou J, Wu Z. Solvent-Controlled α-Monobromination, α,α-Dibromination or Imidation of 1,3-Diketones with N
-Bromosuccinimide. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800994] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Liang-Hua Zou
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology; Ministry of Education; School of Biotechnology; School of Pharmaceutical Sciences; Jiangnan University; Lihu Avenue 1800 214122 Wuxi P.R. China
| | - Yan-Chun Li
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology; Ministry of Education; School of Biotechnology; School of Pharmaceutical Sciences; Jiangnan University; Lihu Avenue 1800 214122 Wuxi P.R. China
| | - Ping-Gui Li
- State Key Laboratory of Coordination Chemistry; Collaborative Innovation Center of Chemistry for Life Sciences; chool of Chemistry and Chemical Engineering; Nanjing University; Xianlin Avenue 163 210093 Nanjing P. R. China
| | - Jing Zhou
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology; Ministry of Education; School of Biotechnology; School of Pharmaceutical Sciences; Jiangnan University; Lihu Avenue 1800 214122 Wuxi P.R. China
| | - Zhimeng Wu
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology; Ministry of Education; School of Biotechnology; School of Pharmaceutical Sciences; Jiangnan University; Lihu Avenue 1800 214122 Wuxi P.R. China
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3
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Liu X, Zhao X, Liang F, Ren B. t-BuONa-mediated direct C-H halogenation of electron-deficient (hetero)arenes. Org Biomol Chem 2018; 16:886-890. [PMID: 29340407 DOI: 10.1039/c7ob03081a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An efficient halogenation of electron-deficient (hetero)arenes is described. The reaction utilizes common t-BuONa as a catalyst (for iodination) or a promoter (for bromination and chlorination), and perfluorobutyl iodide, CBr4 or CCl4 as the readily-available halogenating agents, respectively. The protocol features broad scope, high efficiency, mild conditions and gram scalability. An ionic pathway involving halogen bond formation and halophilic attack is proposed. The utility of the resulting iodinated heteroarenes is demonstrated in visible light-mediated Caryl-Caryl cross-coupling reaction.
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Affiliation(s)
- Xia Liu
- College of Chemistry, Liaoning University, Shenyang 110036, China.
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4
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5
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Yu JM, Cai C. Ambient-Light-Promoted Perfluoroalkylative Cyclization of β,γ-Unsaturated Hydrazones: Synthesis of Perfluoroalkylated Pyrazolines. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701201] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jing-miao Yu
- Chemical Engineering College; Nanjing University of Science and Technology; 200 Xiao Ling Wei Street Nanjing Jiangsu People's Republic of China
| | - Chun Cai
- Chemical Engineering College; Nanjing University of Science and Technology; 200 Xiao Ling Wei Street Nanjing Jiangsu People's Republic of China
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 20032 Shanghai Shanghai
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6
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Wang R, Guan W, Han ZB, Liang F, Suga T, Bi X, Nishide H. Ambient-Light-Promoted Three-Component Annulation: Synthesis of Perfluoroalkylated Pyrimidines. Org Lett 2017; 19:2358-2361. [DOI: 10.1021/acs.orglett.7b00894] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rui Wang
- College
of Chemistry, Liaoning University, Shenyang 110036, China
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Wei Guan
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Zheng-Bo Han
- College
of Chemistry, Liaoning University, Shenyang 110036, China
| | - Fushun Liang
- College
of Chemistry, Liaoning University, Shenyang 110036, China
| | - Takeo Suga
- Department
of Applied Chemistry, Waseda University, Tokyo 169-8555, Japan
| | - Xihe Bi
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Hiroyuki Nishide
- Department
of Applied Chemistry, Waseda University, Tokyo 169-8555, Japan
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7
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Krishna Moodapelly S, Sharma GVM, Ramana Doddi V. Controlled Reactivity of 1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU) in the Selective Synthesis of 1-(Bromoethynyl)arenes. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601279] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Shiva Krishna Moodapelly
- Organic and Biomolecular Chemistry Division; CSIR-Indian Institute of Chemical Technology (CSIR-IICT); Hyderabad - 500007 India
| | - Gangavaram V. M. Sharma
- Organic and Biomolecular Chemistry Division; CSIR-Indian Institute of Chemical Technology (CSIR-IICT); Hyderabad - 500007 India
| | - Venkata Ramana Doddi
- Organic and Biomolecular Chemistry Division; CSIR-Indian Institute of Chemical Technology (CSIR-IICT); Hyderabad - 500007 India
- Department of Chemistry and Chemical Sciences; Central University of Jammu; Jammu India
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8
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Yuan H, Zhang J. Mechanistic insights on DBU catalyzedβ-amination of nbs to chalcone driving by water: Multiple roles of water. J Comput Chem 2017; 38:438-445. [DOI: 10.1002/jcc.24700] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 12/01/2016] [Accepted: 12/01/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Haiyan Yuan
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Advanced Energy Materials Research Center, Faculty of Chemistry; Northeast Normal University; Renmin Street 5268# Changchun 130024 China
| | - Jingping Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Advanced Energy Materials Research Center, Faculty of Chemistry; Northeast Normal University; Renmin Street 5268# Changchun 130024 China
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9
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10
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Li Y, Liang F. With DBU-activated N-bromophthalimide as potential N-sources to achieve P–N cross-coupling of P(O)–H compounds. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.05.076] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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11
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Li M, Zhang L, Zhao B, Liang F. One-pot, two-step conversion of alkynes to α-amino (α,α-diamino) ketones with a DMF-activated N-bromoimide strategy. RSC Adv 2016. [DOI: 10.1039/c6ra12770c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simple, one-pot, two-step cascade reaction for the synthesis of α-amino ketones has been developed.
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Affiliation(s)
- Mengru Li
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Luyan Zhang
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Baozhong Zhao
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Fushun Liang
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
- College of Chemistry
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12
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Zhang L, Li Y, Jin LY, Liang F. Metal-free C–N cross-coupling of electrophilic compounds and N-haloimides. RSC Adv 2015. [DOI: 10.1039/c5ra13708j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
When DBU is added, the cross-coupling reaction between alkyl halides (halogen = Cl, Br and I) and N-haloimides (halogen = Cl, Br) occurs, resulting in the formation of aminated products.
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Affiliation(s)
- Luyan Zhang
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Yanru Li
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | | | - Fushun Liang
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
- Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education
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