1
|
Fu MX, Lin JH, Xiao JC. Desulfurization of Thiols for Nucleophilic Substitution. Org Lett 2024; 26:6065-6069. [PMID: 38984702 DOI: 10.1021/acs.orglett.4c02256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Although the desulfurization of thiols is a topic of great importance and has received significant attention, most efforts have focused on the hydrodesulfurization of thiols. In this work, we describe the desulfurization of thiols for nucleophilic substitution. This process occurs rapidly, promoted by the Ph3P/ICH2CH2I system, and can be extended to a wide range of nucleophiles. Notably, free amines can be employed as nucleophiles to synthesize various secondary and tertiary amines. This method tolerates a wide array of functional groups, including hydroxyl groups in amination reactions. Benzyl thiols are particularly reactive and can be completely converted at room temperature within 15 min. Although alkyl thiols show lower reactivity, they can also be converted smoothly at a reaction temperature of 70 °C overnight.
Collapse
Affiliation(s)
- Mu-Xian Fu
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, 200444 Shanghai, China
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, 200032 Shanghai, China
| | - Jin-Hong Lin
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, 200444 Shanghai, China
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, 200032 Shanghai, China
| | - Ji-Chang Xiao
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, 200032 Shanghai, China
| |
Collapse
|
2
|
Odoh AS, Keeler C, Kim B. SuFEx-Enabled Direct Deoxy-Diversification of Alcohols. Org Lett 2024; 26:4013-4017. [PMID: 38691850 DOI: 10.1021/acs.orglett.4c01016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
We introduce a new use of sulfonyl fluoride as a bifunctional reagent that facilitates the one-step deoxy-diversification of complex alcohol libraries. Our reaction design features a Sulfur(VI) Fluoride Exchange (SuFEx) mediated activation of alcohols and fluoride-induced activation of silicon-bound nucleophiles. This method enables the direct conversion of alcoholic C-O bonds in complex molecules into diverse analogues via C-C, C-N, C-Cl, and C-Br bond formation while suppressing any elimination side-products.
Collapse
Affiliation(s)
- Amaechi Shedrack Odoh
- Department of Chemistry, Clemson University, Clemson, South Carolina 29634, United States
| | - Courtney Keeler
- Department of Chemistry, Clemson University, Clemson, South Carolina 29634, United States
| | - Byoungmoo Kim
- Department of Chemistry, Clemson University, Clemson, South Carolina 29634, United States
| |
Collapse
|
3
|
Sun G, Zhan SP, Zhao YF, Du X, Shi MY, Li J, Yuan H, Wen X, Sun H, Xu QL. Organophosphorus-Catalyzed Direct Dehydroxylative Thioetherification of Alcohols with Hypervalent Organosulfur Compounds. J Org Chem 2024. [PMID: 38173188 DOI: 10.1021/acs.joc.3c02175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
A metal-free and thiol-free organophosphorus-catalyzed method for forming thioethers was disclosed, driven by PIII/PV═O redox cycling. In this work, one-step dehydroxylative thioetherification of alcohols was fulfilled with various hypervalent organosulfur compounds. This established strategy features an excellent functional group tolerance and broad substrate scope, especially inactivated alcohols. The scale-up reaction and further transformation of the product were also successful. Additionally, this method offers a protecting-group-free and step-efficient approach for synthesizing peroxisome proliferator-activated receptor agonists which exhibited promising potential for treating osteoporosis in mammals.
Collapse
Affiliation(s)
- Gang Sun
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Shi-Ping Zhan
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Yi-Feng Zhao
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Xingyi Du
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Mao-Ying Shi
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Jing Li
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Haoliang Yuan
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Xiaoan Wen
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Hongbin Sun
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Qing-Long Xu
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| |
Collapse
|
4
|
Tang WY, Zheng X, Yao X, Lin JH, Zheng QT, Xiao JC. Ph 3P/ICH 2CH 2I-promoted reductive deoxygenation of alcohols. Org Biomol Chem 2023; 21:8989-8992. [PMID: 37937947 DOI: 10.1039/d3ob01698f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
Owing to the ubiquity of the hydroxyl group, reductive deoxygenation of alcohols has become an active research area. The classic Barton-McCombie reaction suffers from a tedious two-step procedure. New efficient methods have been developed, but they have some limitations, such as a narrow substrate scope and the use of moisture-sensitive Lewis acids. In this work, we describe the Ph3P/ICH2CH2I-promoted reductive deoxygenation of alcohols with NaBH4. The process is applicable to benzyl, allyl and propargyl alcohols, and also to primary and secondary alcohols, demonstrating a wide substrate scope and a good level of functional group tolerance. This protocol features convenient operation and low cost of all reagents.
Collapse
Affiliation(s)
- Wei-Ying Tang
- Institute of Pharmacy and Pharmacology, Hengyang Medicinal School, University of South China, Hengyang, Hunan, 421001, China
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200032, China.
| | - Xing Zheng
- Institute of Pharmacy and Pharmacology, Hengyang Medicinal School, University of South China, Hengyang, Hunan, 421001, China
- Department of Pharmacy, Hunan Vocational College of Science and Technology, Third Zhongyi Shan Road, Changsha, Hunan, 410004, China
| | - Xu Yao
- Institute of Pharmacy and Pharmacology, Hengyang Medicinal School, University of South China, Hengyang, Hunan, 421001, China
| | - Jin-Hong Lin
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, 200444 Shanghai, China.
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200032, China.
| | - Qu-Tong Zheng
- Hunan University of Chinese Medicine, School of Pharmacy, Changsha, Hunan 410208, China.
| | - Ji-Chang Xiao
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200032, China.
| |
Collapse
|
5
|
Xiang YJ, Liu S, Zhou J, Lin JH, Yao X, Xiao JC. Dehydroxylative Sulfonylation of Alcohols. J Org Chem 2023; 88:4818-4828. [PMID: 36913713 DOI: 10.1021/acs.joc.2c03085] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
Described here is the R3P/ICH2CH2I-promoted dehydroxylative sulfonylation of alcohols with a variety of sulfinates. In contrast to previous dehydroxylative sulfonylation methods, which are usually limited to active alcohols, such as benzyl, allyl, and propargyl alcohols, our protocol can be extended to both active and inactive alcohols (alkyl alcohols). Various sulfonyl groups can be incorporated, such as CF3SO2 and HCF2SO2, which are fluorinated groups of interest in pharmaceutical chemistry and the installation of which has received increasing attention. Notably, all reagents are cheap and widely available, and moderate to high yields were obtained within 15 min of reaction time.
Collapse
Affiliation(s)
- Yi-Jun Xiang
- Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, University of South China, 421001 Hengyang, PR China.,Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, 200032 Shanghai, PR China
| | - Shun Liu
- Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, University of South China, 421001 Hengyang, PR China
| | - Jing Zhou
- Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, University of South China, 421001 Hengyang, PR China
| | - Jin-Hong Lin
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, 200032 Shanghai, PR China.,Department of Chemistry, Innovative Drug Research Center, Shanghai University, 200444 Shanghai, PR China
| | - Xu Yao
- Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, University of South China, 421001 Hengyang, PR China
| | - Ji-Chang Xiao
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, 200032 Shanghai, PR China
| |
Collapse
|
6
|
Study of Cyclohexane and Methylcyclohexane Functionalization Promoted by Manganese(III) Compounds. INORGANICS 2023. [DOI: 10.3390/inorganics11030105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
Abstract
Alkane functionalization using safe and low-energy processes is of great interest to industry and academia. Aiming to contribute to the process of saturated hydrocarbon functionalization, we have studied a set of three manganese(III) complexes as catalysts for promoting the oxidation of saturated hydrocarbons (cyclohexane and methylcyclohexane) in the presence of hydrogen peroxide or trichloroisocyanuric acid (TCCA). The mononuclear manganese(III) compounds were prepared using the ligands H2LMet4 (6,6’-((1,4-diazepane-1,4-diyl)bis(methylene))bis(2,4-dimethylphenol), H2salen (2,2’-((1E,1’E)-(ethane-1,2-diylbis(azaneylylidene))bis(methaneylylidene))diphenol) and H2salan (2,2’-((ethane-1,2-diylbis(azanediyl))bis(methylene))diphenol). The catalytic processes were carried out in acetonitrile at 25 and 50 °C for 24 h. The increase in the temperature was important to get a better conversion. The compounds did not promote cyclohexane oxidation in the presence of H2O2. However, they were active in the presence of TCCA, employing a ratio of 1000:333:1 equivalents of the substrate:TCCA:catalyst. The best catalytic activity was shown by the compound [Mn(salen)Cl], reaching conversions of 14.5 ± 0.3% (25 °C) and 26.3 ± 1.1% (50 °C) (yield for chlorocyclohexane) and up to 12.1 ± 0.5% (25 °C) and 29.8 ± 2.2% (50 °C) (total yield for the mixture of the products 1-chloro-4-methylcyclohexane, 3-methylcyclohexene and 1-methylcyclohexene). The interaction of the catalysts with TCCA was studied using electron paramagnetic resonance (EPR), suggesting that the catalysts [Mn(LMet4)Cl] and [Mn(salan)Cl] act via a different mechanism from that observed for [Mn(salen)Cl].
Collapse
|
7
|
Wang YY, Zhang XY, Zhong XL, Huang YJ, Lin J, Chen WM. Design and Synthesis of 3-Hydroxy-pyridin-4(1 H)-ones-Ciprofloxacin Conjugates as Dual Antibacterial and Antibiofilm Agents against Pseudomonas aeruginosa. J Med Chem 2023; 66:2169-2193. [PMID: 36692083 DOI: 10.1021/acs.jmedchem.2c02044] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Pseudomonas aeruginosa infections are often complicated by the fact that it can easily form a biofilm that increases its resistance to antibiotics. Consequently, the development of novel antibacterial agents against biofilm-associated drug-resistant P. aeruginosa is urgently needed. Herein, we report a series of 3-hydroxy-pyridin-4(1H)-ones-ciprofloxacin conjugates that were designed and synthesized as dual antibacterial and antibiofilm agents against P. aeruginosa. A potential 2-substituted 3-hydroxy-1,6-dimethylpyridin-4(1H)-one-ciprofloxacin conjugate (5e) was identified and had the best minimum inhibitory concentrations of 0.86 and 0.43 μM against P. aeruginosa 27853 and PAO1 and reduced 78.3% of biofilm formation. In addition, 5e eradicates mature biofilms and kills living bacterial cells that are incorporated into the biofilm. Studies on the antibiofilm mechanism of conjugates showed that 5e interferes with iron uptake by bacteria, inhibits their motility, and reduces the production of virulence. These results demonstrate that 3-hydroxy-pyridin-4(1H)-ones-ciprofloxacin conjugates are potent in the treatment of biofilm-associated drug-resistant P. aeruginosa infections.
Collapse
Affiliation(s)
- Yuan-Yuan Wang
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, #855 Xingye Avenue, Guangzhou 511400, China
| | - Xiao-Yi Zhang
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, #855 Xingye Avenue, Guangzhou 511400, China
| | - Xiao-Lin Zhong
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, #855 Xingye Avenue, Guangzhou 511400, China
| | - Yong-Jun Huang
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, #855 Xingye Avenue, Guangzhou 511400, China
| | - Jing Lin
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, #855 Xingye Avenue, Guangzhou 511400, China
| | - Wei-Min Chen
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, #855 Xingye Avenue, Guangzhou 511400, China
| |
Collapse
|
8
|
Power-to-chemicals: sustainable liquefaction of food waste with plasma-electrolysis. Front Chem Sci Eng 2023. [DOI: 10.1007/s11705-022-2255-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
9
|
SulfoxFluor as a deoxyfluorination reagent, and beyond. J Fluor Chem 2022. [DOI: 10.1016/j.jfluchem.2022.110029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
10
|
Cadwallader D, Tiburcio TR, Cieszynski GA, Le CM. Synthesis of Carbamoyl Fluorides Using a Difluorophosgene Surrogate Derived from Difluorocarbene and Pyridine N-Oxides. J Org Chem 2022; 87:11457-11468. [PMID: 35972076 DOI: 10.1021/acs.joc.2c01017] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report a method for the synthesis of carbamoyl fluorides from secondary amines using bench-stable, inexpensive, and readily accessible starting materials that, when combined, yield a surrogate for toxic difluorophosgene (COF2) gas. In contrast to state-of-the-art methods for the synthesis of carbamoyl fluorides, our protocol does not require the use of pre-functionalized substrates, the preparation of light-, temperature-, and/or moisture-sensitive chemicals, or the application of explosive fluorinating reagents.
Collapse
Affiliation(s)
- Dusty Cadwallader
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
| | - Tristan R Tiburcio
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
| | - George A Cieszynski
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
| | - Christine M Le
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
| |
Collapse
|
11
|
Guo J, Wang X, Ni C, Wan X, Hu J. SulfoxFluor-enabled deoxyazidation of alcohols with NaN 3. Nat Commun 2022; 13:2752. [PMID: 35585073 PMCID: PMC9117260 DOI: 10.1038/s41467-022-30132-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 04/14/2022] [Indexed: 11/09/2022] Open
Abstract
Direct deoxyazidation of alcohols with NaN3 is a straightforward method for the synthesis of widely used alkyl azides in organic chemistry. However, known methods have some limitations such as high reaction temperatures and narrow substrate scope. Herein, a general and practical method for the preparation of alkyl azides from alcohols using NaN3 has been developed. N-tosyl-4-chlorobenzenesulfonimidoyl fluoride (SulfoxFluor) plays an important role in this deoxyazidation process, which converts a broad range of alcohols into alkyl azides at room temperature. The power of this deoxyazidation protocol has been demonstrated by successful late-stage deoxyazidation of natural products and pharmaceutically relevant molecules.
Collapse
Affiliation(s)
- Junkai Guo
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai, 200032, China
| | - Xiu Wang
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai, 200032, China
| | - Chuanfa Ni
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai, 200032, China
| | - Xiaolong Wan
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai, 200032, China
| | - Jinbo Hu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai, 200032, China.
| |
Collapse
|
12
|
Late‐Stage Dehydroxyazidation of Alcohols Promoted by Trifunctional Hypervalent Azido‐Iodine(III) Reagents. Chemistry 2022; 28:e202200272. [DOI: 10.1002/chem.202200272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Indexed: 11/10/2022]
|
13
|
Irving CD, Floreancig JT, Gasonoo M, Kelley AS, Laulhé S. Synthesis of Imide and Amine Derivatives via Deoxyamination of Alcohols Using
N
‐Haloimides and Triphenylphosphine. ChemistrySelect 2021; 6:8874-8878. [DOI: 10.1002/slct.202102296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Charles D. Irving
- Department of Chemistry and Chemical Biology Indiana University-Purdue University Indianapolis Indianapolis IN 46202 United States
| | - Jack T. Floreancig
- Department of Chemistry and Chemical Biology Indiana University-Purdue University Indianapolis Indianapolis IN 46202 United States
| | - Makafui Gasonoo
- Department of Chemistry and Chemical Biology Indiana University-Purdue University Indianapolis Indianapolis IN 46202 United States
| | - Alexandra S. Kelley
- Department of Chemistry and Chemical Biology Indiana University-Purdue University Indianapolis Indianapolis IN 46202 United States
| | - Sébastien Laulhé
- Department of Chemistry and Chemical Biology Indiana University-Purdue University Indianapolis Indianapolis IN 46202 United States
| |
Collapse
|
14
|
He G, Xiao X, Jin HZ, Lin JH, Zhong T, Zheng X, Xiao JC. Ph2S/selectfluor-promoted deoxydifluorination of aldehydes. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.131963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
15
|
Chen Y, He R, Song H, Yu G, Li C, Liu Y, Wang Q. Two‐Step Protocol for Iodotrimethylsilane‐Mediated Deoxy‐Functionalization of Alcohols. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yuming Chen
- State Key Laboratory of Elemento-Organic Chemistry Research Institute of Elemento-Organic Chemistry College of Chemistry Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Nankai University 300071 Tianjin People's Republic of China
| | - Ru He
- State Key Laboratory of Elemento-Organic Chemistry Research Institute of Elemento-Organic Chemistry College of Chemistry Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Nankai University 300071 Tianjin People's Republic of China
| | - Hongjian Song
- State Key Laboratory of Elemento-Organic Chemistry Research Institute of Elemento-Organic Chemistry College of Chemistry Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Nankai University 300071 Tianjin People's Republic of China
| | - Guoqing Yu
- State Key Laboratory of Elemento-Organic Chemistry Research Institute of Elemento-Organic Chemistry College of Chemistry Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Nankai University 300071 Tianjin People's Republic of China
- Shandong Boyuan Pharmaceutical & Chemical Co., Ltd 262725 Shouguang People's Republic of China
| | - Chenglin Li
- State Key Laboratory of Elemento-Organic Chemistry Research Institute of Elemento-Organic Chemistry College of Chemistry Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Nankai University 300071 Tianjin People's Republic of China
- Shandong Boyuan Pharmaceutical & Chemical Co., Ltd 262725 Shouguang People's Republic of China
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry Research Institute of Elemento-Organic Chemistry College of Chemistry Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Nankai University 300071 Tianjin People's Republic of China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry Research Institute of Elemento-Organic Chemistry College of Chemistry Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Nankai University 300071 Tianjin People's Republic of China
| |
Collapse
|
16
|
Xiao X, Yao X, Yu J, Tang T, Xiao C, Gu J, Lin JH, Zheng X, Xiao JC. A one-step synthesis of gem-difluoroolefins from alcohols. J Fluor Chem 2020. [DOI: 10.1016/j.jfluchem.2020.109649] [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]
|
17
|
Abstract
A large number of fluorination methods have been developed, but the construction of a tertiary C-F bond remains challenging. Herein, we describe an efficient dehydroxylative fluorination of tertiary alcohols with Selectfluor via the activation of a hydroxyl group by a Ph2PCH2CH2PPh2/ICH2CH2I system. Although the reagents appear to be not compatible (Selectfluor with the phosphine and I- generated in situ), the reactions occur rapidly to give the desired products in moderate to high yields. This work may present a new discovery in fluorination of alcohols since the reported methods are mainly limited to primary and secondary alcohols.
Collapse
Affiliation(s)
- Wei Zhang
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Yu-Cheng Gu
- Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire RG426EY, U.K
| | - Jin-Hong Lin
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Ji-Chang Xiao
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| |
Collapse
|
18
|
Lin JH, Xiao JC. Fluorinated Ylides/Carbenes and Related Intermediates from Phosphonium/Sulfonium Salts. Acc Chem Res 2020; 53:1498-1510. [PMID: 32786338 DOI: 10.1021/acs.accounts.0c00244] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Owing to the special effects of the fluorine element, including high electronegativity and small atomic radius, the incorporation of a fluorinated group into organic molecules may modify their physical, chemical, and biological properties. Fluorine-containing compounds have found widespread application in a variety of areas, and thus, the development of efficient reagents and methods for the incorporation of fluorinated groups has become a subject of significant interest.Described in this Account are our recent discoveries in the chemistry of fluorinated ylides/carbenes and related intermediates generated from phosphonium/sulfonium salts. Initially, we obtained the (triphenylphosphonio) difluoroacetate, Ph3P+CF2CO2- (PDFA), which was proposed as a reactive intermediate but had never been successfully synthesized. PDFA, shelf-stable and easy to prepare, is not only a mild ylide (Ph3P+CF2-) reagent, but also an efficient difluorocarbene source. It can directly generate difluorocarbene, via the first generation of ylide Ph3P+CF2-, simply under warming conditions without the need for any additive. Interestingly, difluorocarbene chemistry was then discovered by using PDFA as a reagent. Difluorocarbene can be oxidized to CF2═O, can react with elemental sulfur to afford CF2═S, and can be trapped by NaNH2 or NH3 to give CN-. The development of these processes into synthetic tools allowed us to achieve various reactions, including the challenging 18F-trifluoromethylthiolation and cyanodifluoromethylation. It was found that a substituent on the cation of a phosphonium salt can be directly transferred as a nucleophile despite the cation's high electrophilicity. This transfer process is like an "umpolung" of the cation, which may provide more opportunities for the synthetic utilities of phosphonium salts. The investigation of this transfer process led us to find that iodophosphonium salts, active intermediates which can be easily generated, may efficiently promote deoxygenative functionalizations of aldehydes and alcohols. Dehydroxylative substitution of alcohols by this protocol permits the use of unprotected amines with higher pKa values as nucleophiles, which is an attractive feature compared with the Mitsunobu reaction. On the basis of the ylide-to-carbene process (Ph3P+CF2- → :CF2), we further developed sulfonium salts as precursors of fluorinated ylides and fluorinated methyl carbenes. In particular, the studies on difluoromethylcarbene, remaining largely unexplored, may deserve more attention. The discoveries may find utility in the synthesis of biologically active fluorine-containing molecules.
Collapse
Affiliation(s)
- Jin-Hong Lin
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Ji-Chang Xiao
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| |
Collapse
|
19
|
Wu S, Jiang TH, Zhang CP. CaCl2-Promoted Dehydroxytrifluoromethylselenolation of Alcohols with [Me4N][SeCF3]. Org Lett 2020; 22:6016-6020. [DOI: 10.1021/acs.orglett.0c02109] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Shuai Wu
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan 430070, China
| | - Tian-Hao Jiang
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan 430070, China
| | - Cheng-Pan Zhang
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan 430070, China
| |
Collapse
|
20
|
Liu TL, Li ZF, Tao J, Li QH, Li WF, Li Q, Ren LQ, Peng YG. Cyano-borrowing: titanium-catalyzed direct amination of cyanohydrins with amines and enantioselective examples. Chem Commun (Camb) 2020; 56:651-654. [PMID: 31840151 DOI: 10.1039/c9cc08576a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The direct amination of cyanohydrins with amines via a catalytic cyano-borrowing reaction was developed. The transformation features broad substrate scope, excellent functional group compatibility, and very mild and simple operations. Moreover, a titanium catalyst supported by quinine and (S)-BINOL ligands enabled an asymmetric cyano-borrowing reaction with moderate to high enantioselectivity.
Collapse
Affiliation(s)
- Tang-Lin Liu
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Zhao-Feng Li
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Jing Tao
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Qing-Hua Li
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Wan-Fang Li
- College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Qian Li
- College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Li-Qing Ren
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Yun-Gui Peng
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| |
Collapse
|
21
|
Zhang W, Lin J, Wu W, Cao Y, Xiao J. Dehydroxylative Trifluoromethylthiolation, Trifluoromethylation, and Difluoromethylation of Alcohols. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900364] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Wei Zhang
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Jin‐Hong Lin
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Wenfeng Wu
- College of Chemistry and Materials Engineering, Guiyang University 103 Jianlongdong Road, Nanming District Guiyang Guizhou 550005 China
| | - Yu‐Cai Cao
- State Key Laboratory of Polyolefins and Catalysis, Shanghai Key Laboratory of Catalysis Technology for Polyolefins, Shanghai Research Institute of Chemical Industry Co., Ltd. Shanghai 200062 China
| | - Ji‐Chang Xiao
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| |
Collapse
|
22
|
Huy PH. Lewis Base Catalysis Promoted Nucleophilic Substitutions – Recent Advances and Future Directions. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901495] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Peter H. Huy
- Institute for Organic Chemistry Saarland University P. O. Box 151150 66041 Saarbruecken Germany
| |
Collapse
|
23
|
Böldl M, Fleischer I. Dehydrative Coupling of Benzylic Alcohols Catalyzed by Brønsted Acid/Lewis Base. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900965] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Marlene Böldl
- Institute of Organic Chemistry. Eberhard Karls Universität Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Ivana Fleischer
- Institute of Organic Chemistry. Eberhard Karls Universität Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
| |
Collapse
|
24
|
Motsch S, Schütz C, Huy PH. Systematic Evaluation of Sulfoxides as Catalysts in Nucleophilic Substitutions of Alcohols. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800907] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sebastian Motsch
- Institute of Organic Chemistry; Saarland University; P. O. Box 151150 66041 Saarbrücken Germany
| | - Christian Schütz
- Institute of Organic Chemistry; Saarland University; P. O. Box 151150 66041 Saarbrücken Germany
| | - Peter H. Huy
- Institute of Organic Chemistry; Saarland University; P. O. Box 151150 66041 Saarbrücken Germany
| |
Collapse
|