1
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Snyder MJ, Alawaed AA, Li C, Pacentine S, Hamann HJ, Ramachandran PV. TiF 4-mediated, one-pot, reductive amination of carboxylic acids with borane-ammonia. RSC Adv 2024; 14:31205-31209. [PMID: 39351415 PMCID: PMC11441464 DOI: 10.1039/d4ra05888g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2024] [Accepted: 09/23/2024] [Indexed: 10/04/2024] Open
Abstract
A facile one-pot, two-step, reductive alkylation of amines with carboxylic acids has been achieved with BH3-NH3 as an air- and moisture-stable reductant in the presence of TiF4. The catalyst is effective for both amidation and reduction steps, and the product amines are isolated in high yields as either the free amines, for those products containing an arylamine, or the borane-complexes. The free amine can be separated from these complexes using BF3-Et2O, followed by hydrolysis. The amide reduction has been demonstrated for primary, secondary, and tertiary amides, as well as lactams, and the reductive amination is applicable to a wide variety of aromatic and aliphatic acids as well as amines.
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Affiliation(s)
- Madison J Snyder
- Herbert C. Brown Center for Borane Research, Department of Chemistry, Purdue University West Lafayette Indiana 47907 USA
| | - Abdulkhaliq A Alawaed
- Herbert C. Brown Center for Borane Research, Department of Chemistry, Purdue University West Lafayette Indiana 47907 USA
| | - Chunge Li
- Herbert C. Brown Center for Borane Research, Department of Chemistry, Purdue University West Lafayette Indiana 47907 USA
| | - Samantha Pacentine
- Herbert C. Brown Center for Borane Research, Department of Chemistry, Purdue University West Lafayette Indiana 47907 USA
| | - Henry J Hamann
- Herbert C. Brown Center for Borane Research, Department of Chemistry, Purdue University West Lafayette Indiana 47907 USA
| | - P Veeraraghavan Ramachandran
- Herbert C. Brown Center for Borane Research, Department of Chemistry, Purdue University West Lafayette Indiana 47907 USA
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2
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Chen M, Zhu L, Zheng W, Fu Y, Zhang J, He H, Antilla JC. Catalytic Asymmetric Desymmetrization of Cyclic 1,3-Diketones Using Chiral Boro-phosphates. Org Lett 2024; 26:3951-3956. [PMID: 38678546 DOI: 10.1021/acs.orglett.4c01195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Herein, we report a chiral boro-phosphate-catalyzed reductive amination for the desymmetrization of 2,2-disubstituted 1,3-cyclopentadiones with pinacolborane as the reducing agent, delivering chiral β-amino ketones with an all-carbon quaternary stereocenter in good yields (≤94%), high enantioselectivities (≤97% ee), and excellent diastereoselectivities (>20:1 dr). This reaction has a broad substrate scope and high functional group tolerance. The importance of the chiral products was also demonstrated through the preparation of multifunctional building blocks and heterocycles.
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Affiliation(s)
- Minglei Chen
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Linfei Zhu
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Weitao Zheng
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Yili Fu
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Junru Zhang
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Hualing He
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Jon C Antilla
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
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3
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Abstract
Chiral catalysts play a crucial role in the realm of asymmetric catalysis. Since their breakthrough discovery in 2006, chiral frustrated Lewis pairs (FLPs) have risen as a novel catalyst category for a broad range of metal-free asymmetric reactions. This review provides an overview of the remarkable progress made in this field over the past 15 years. The design and synthesis of chiral FLPs and their applications in hydrogenation, hydrosilylation, transfer hydrogenation, and various other reactions are summarized and highlighted.
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Affiliation(s)
- Xiangqing Feng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Meng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haifeng Du
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
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4
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Zhang Y, Jiang Y, Nafady A, Tang Z, Al-Enizi AM, Tan K, Ma S. Incorporation of Chiral Frustrated Lewis Pair into Metal-Organic Framework with Tailored Microenvironment for Heterogeneous Enantio- and Chemoselective Hydrogenation. ACS CENTRAL SCIENCE 2023; 9:1692-1701. [PMID: 37637733 PMCID: PMC10451035 DOI: 10.1021/acscentsci.3c00637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Indexed: 08/29/2023]
Abstract
The development of efficient heterogeneous catalysts with multiselectivity (e.g., enantio- and chemoselectivity) has long been sought after but with limited progress being made so far. To achieve enantio- and chemoselectivity in a heterogeneous system, as inspired by enzymes, we illustrate herein an approach of creating an enzyme-mimic region (EMR) within the nanospace of a metal-organic framework (MOF) as exemplified in the context of incorporating a chiral frustrated Lewis pair (CFLP) into a MOF with a tailored pore environment. Due to the high density of the EMR featuring the active site of CFLP and auxiliary sites of the hydroxyl group/open metal site within the vicinity of CFLP, the resultant EMR@MOF demonstrated excellent catalysis performance in heterogeneous hydrogenation of α,β-unsaturated imines to afford chiral β-unsaturated amines with high yields and high enantio- and chemoselectivity. The role of the hydroxyl group/open metal site in regulating chemoselectivity was proved by the observation of a catalyst-substrate interaction experimentally, which was also rationalized by computational results. This work not only contributes a MOF as a new platform for multiselective catalysis but also opens a promising avenue to develop heterogeneous catalysts with multiselectivity for challenging yet important transformations.
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Affiliation(s)
- Yin Zhang
- Department
of Chemistry, University of North Texas, Denton, Texas 76201, United States
| | - Yao Jiang
- School
of Chemistry and Chemical Engineering, Hefei
University of Technology, Hefei 230009, People’s Republic of China
| | - Ayman Nafady
- Department
of Chemistry, College of Science, King Saud
University, Riyadh 11451, Saudi Arabia
| | - Zhiyong Tang
- National
Center for Nanoscience and Nanotechnology, No. 11 ZhongGuanCun BeiYiTiao, 100190 Beijing, People’s Republic of China
| | - Abdullah M. Al-Enizi
- Department
of Chemistry, College of Science, King Saud
University, Riyadh 11451, Saudi Arabia
| | - Kui Tan
- Department
of Chemistry, University of North Texas, Denton, Texas 76201, United States
| | - Shengqian Ma
- Department
of Chemistry, University of North Texas, Denton, Texas 76201, United States
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5
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Wu Z, He H, Chen M, Zhu L, Zheng W, Cao Y, Antilla JC. Asymmetric Reductive Amination with Pinacolborane Catalyzed by Chiral SPINOL Borophosphates. Org Lett 2022; 24:9436-9441. [PMID: 36519791 DOI: 10.1021/acs.orglett.2c03866] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The catalytic asymmetric reductive amination of ketones with pinacolborane employing chiral SPINOL-derived borophosphates as catalysts has been realized. A series of chiral amine derivatives bearing multiple functional groups were obtained in good to excellent yields and enantioselectivities (up to 97% yield, 98% ee) under mild reaction conditions. Moreover, the synthetic applicability of the established method has been demonstrated by the asymmetric synthesis of (R)-Fendiline.
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Affiliation(s)
- Zhenwei Wu
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Hualing He
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Minglei Chen
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Linfei Zhu
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Weitao Zheng
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Yang Cao
- Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Ocean University, Lianyungang, Jiangsu222005, P. R. China
| | - Jon C Antilla
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
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6
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Gao X, Shi X, Yang D, Jin H, Zhou X, Meng T, Li X, Jia Z, Zhang X, Wu Z, Wang C, Zeng T, Liu L, Ai C, Zhu H. Highly efficient axially biscarboline ethers as catalysts used in 1,2- and 1,4-transfer hydrogenations of ketimines and β-enamino esters. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Wang L, Lin J, Xia C, Sun W. Manganese-catalyzed asymmetric transfer hydrogenation of hydrazones. J Catal 2022. [DOI: 10.1016/j.jcat.2022.06.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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8
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Han C, Meng W, Feng X, Du H. Asymmetric Intramolecular Hydroalkoxylation of 2‐Vinylbenzyl Alcohols with Chiral Boro‐Phosphates. Angew Chem Int Ed Engl 2022; 61:e202200100. [DOI: 10.1002/anie.202200100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Caifang Han
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Wei Meng
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xiangqing Feng
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Haifeng Du
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
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9
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Tang P, Wen L, Ma HJ, Yang Y, Jiang Y. Synthesis of acyloxy-2 H-azirine and sulfonyloxy-2 H-azirine derivatives via a one-pot reaction of β-enamino esters, PIDA and carboxylic acid or sulfonic acid. Org Biomol Chem 2022; 20:3061-3066. [PMID: 35344576 DOI: 10.1039/d2ob00364c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PIDA mediated oxidative acyloxylation/azirination and sulfonyloxylation/azirination of β-enamino esters were investigated. A series of functionalized acyloxy-2H-azirine and sulfonyloxy-2H-azirine derivatives was synthesized in moderate to good yields. This represents the first oxidative sulfonyloxylation/azirination of β-enamino esters with PIDA and sulfonic acid for access to sulfonyloxy-2H-azirine. Hypervalent iodine reagents enable cascade C-O/C-N bond formation. Furthermore, a possible reaction pathway was proposed based on the experimental results.
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Affiliation(s)
- Pan Tang
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.
| | - Long Wen
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.
| | - Hao-Jie Ma
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.
| | - Yi Yang
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.
| | - Yan Jiang
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.
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10
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Asymmetric Intramolecular Hydroalkoxylation of 2‐Vinylbenzyl Alcohols with Chiral Boro‐Phosphates. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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11
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Jian K, Li B, Zhu S, Xuan Q, Song Q. Chemoselective reduction of α,β-unsaturated ketones to allylic alcohols under catalyst-free conditions. Org Chem Front 2022. [DOI: 10.1039/d1qo01754c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A strategy of chemoselective reduction of α, β-unsaturated ketones was developed in our group. H3N·BH3 would prefer to coordinate with CO bond, forming six-membered ring, and ketones were hydrogenated via concerted double-hydrogen-transfer process.
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Affiliation(s)
- Kaixia Jian
- Institute of Next Generation Matter Transformation, College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian, 361021, China
| | - Bingnan Li
- Institute of Next Generation Matter Transformation, College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian, 361021, China
| | - Shuxian Zhu
- Institute of Next Generation Matter Transformation, College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian, 361021, China
| | - Qingqing Xuan
- Institute of Next Generation Matter Transformation, College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian, 361021, China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation, College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian, 361021, China
- Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
- State Key Laboratory of Organometallic Chemistry and Key Laboratory of Organo-fluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007
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12
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Guo Q, Chen J, Shen G, Lu G, Yang X, Tang Y, Zhu Y, Wu S, Fan B. Tetrabutylammonium Bromide-Catalyzed Transfer Hydrogenation of Quinoxaline with HBpin as a Hydrogen Source. J Org Chem 2021; 87:540-546. [PMID: 34905381 DOI: 10.1021/acs.joc.1c02537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A metal-free environmentally benign, simple, and efficient transfer hydrogenation process of quinoxaline has been developed using the HBpin reagent as a hydrogen source. This reaction is compatible with a variety of quinoxalines offering the desired tetrahydroquinoxalines in moderate-to-excellent yields with Bu4NBr as a noncorrosive and low-cost catalyst.
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Affiliation(s)
- Qi Guo
- Key Laboratory of Advanced Synthetic Chemistry (Yunnan Minzu University), State Ethnic Affairs Commission, Kunming 650500, China
| | - Jingchao Chen
- Key Laboratory of Advanced Synthetic Chemistry (Yunnan Minzu University), State Ethnic Affairs Commission, Kunming 650500, China.,Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan University, Kunming 600091, China
| | - Guoli Shen
- Key Laboratory of Advanced Synthetic Chemistry (Yunnan Minzu University), State Ethnic Affairs Commission, Kunming 650500, China
| | - Guangfu Lu
- Key Laboratory of Advanced Synthetic Chemistry (Yunnan Minzu University), State Ethnic Affairs Commission, Kunming 650500, China
| | - Xuemei Yang
- Key Laboratory of Advanced Synthetic Chemistry (Yunnan Minzu University), State Ethnic Affairs Commission, Kunming 650500, China
| | - Yan Tang
- Key Laboratory of Advanced Synthetic Chemistry (Yunnan Minzu University), State Ethnic Affairs Commission, Kunming 650500, China
| | - Yuanbin Zhu
- Yunnan Tiefeng High Tech Mining Chemicals Co. Ltd., Qingfeng Industrial Park, Lufeng 651200, Yunnan, China
| | - Shiyuan Wu
- Yunnan Tiefeng High Tech Mining Chemicals Co. Ltd., Qingfeng Industrial Park, Lufeng 651200, Yunnan, China
| | - Baomin Fan
- Key Laboratory of Advanced Synthetic Chemistry (Yunnan Minzu University), State Ethnic Affairs Commission, Kunming 650500, China
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13
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Li X, Mi T, Guo W, Ruan Z, Guo Y, Ma YN, Chen X. KB 3H 8: an environment-friendly reagent for the selective reduction of aldehydes and ketones to alcohols. Chem Commun (Camb) 2021; 57:12776-12779. [PMID: 34766960 DOI: 10.1039/d1cc05638g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Selective reduction of aldehydes and ketones to their corresponding alcohols with KB3H8, an air- and moisture-stable, nontoxic, and easy-to-handle reagent, in water and THF has been explored under an air atmosphere for the first time. Control experiments illustrated the good selectivity of KB3H8 over NaBH4 for the reduction of 4-acetylbenzaldehyde and aromatic keto esters.
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Affiliation(s)
- Xinying Li
- Green catalysis center and College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450000, China.
| | - Tongge Mi
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Wenjing Guo
- Green catalysis center and College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450000, China.
| | - Zhongrui Ruan
- Green catalysis center and College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450000, China.
| | - Yu Guo
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Yan-Na Ma
- Green catalysis center and College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450000, China.
| | - Xuenian Chen
- Green catalysis center and College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450000, China.
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14
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Pálvölgyi ÁM, Scharinger F, Schnürch M, Bica‐Schröder K. Chiral Phosphoric Acids as Versatile Tools for Organocatalytic Asymmetric Transfer Hydrogenations. European J Org Chem 2021; 2021:5367-5381. [PMID: 34819797 PMCID: PMC8597106 DOI: 10.1002/ejoc.202100894] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/16/2021] [Indexed: 12/05/2022]
Abstract
Herein, recent developments in the field of organocatalytic asymmetric transfer hydrogenation (ATH) of C=N, C=O and C=C double bonds using chiral phosphoric acid catalysis are reviewed. This still rapidly growing area of asymmetric catalysis relies on metal-free catalysts in combination with biomimetic hydrogen sources. Chiral phosphoric acids have proven to be extremely versatile tools in this area, providing highly active and enantioselective alternatives for the asymmetric reduction of α,β-unsaturated carbonyl compounds, imines and various heterocycles. Eventually, such transformations are more and more often used in multicomponent/cascade reactions, which undoubtedly shows their great synthetic potential and the bright future of organocatalytic asymmetric transfer hydrogenations.
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Affiliation(s)
- Ádám Márk Pálvölgyi
- Institute of Applied Synthetic ChemistryTU WienGetreidemarkt Vienna, 9/1631060WienAustria
| | - Fabian Scharinger
- Institute of Applied Synthetic ChemistryTU WienGetreidemarkt Vienna, 9/1631060WienAustria
| | - Michael Schnürch
- Institute of Applied Synthetic ChemistryTU WienGetreidemarkt Vienna, 9/1631060WienAustria
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15
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Wang Y, Feng J, Dong W, Chen X, Yao P, Wu Q, Zhu D. Improving Catalytic Activity and Reversing Enantio‐Specificity of ω‐Transaminase by Semi‐Rational Engineering en Route to Chiral Bulky β‐Amino Esters. ChemCatChem 2021. [DOI: 10.1002/cctc.202100503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yingang Wang
- University of Chinese Academy of Sciences No.19(A) Yuquan Road Shijingshan District, Beijing 100049 P.R. China
- National Technology Innovation Center for Synthetic Biology National Engineering Laboratory for Industrial Enzymes and Tianjin Engineering Research Center of Biocatalytic Technology Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences 32 Xi Qi Dao Tianjin Airport Economic Area, Tianjin 300308 P.R. China
| | - Jinhui Feng
- University of Chinese Academy of Sciences No.19(A) Yuquan Road Shijingshan District, Beijing 100049 P.R. China
- National Technology Innovation Center for Synthetic Biology National Engineering Laboratory for Industrial Enzymes and Tianjin Engineering Research Center of Biocatalytic Technology Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences 32 Xi Qi Dao Tianjin Airport Economic Area, Tianjin 300308 P.R. China
| | - Wenyue Dong
- National Technology Innovation Center for Synthetic Biology National Engineering Laboratory for Industrial Enzymes and Tianjin Engineering Research Center of Biocatalytic Technology Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences 32 Xi Qi Dao Tianjin Airport Economic Area, Tianjin 300308 P.R. China
| | - Xi Chen
- University of Chinese Academy of Sciences No.19(A) Yuquan Road Shijingshan District, Beijing 100049 P.R. China
- National Technology Innovation Center for Synthetic Biology National Engineering Laboratory for Industrial Enzymes and Tianjin Engineering Research Center of Biocatalytic Technology Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences 32 Xi Qi Dao Tianjin Airport Economic Area, Tianjin 300308 P.R. China
| | - Peiyuan Yao
- University of Chinese Academy of Sciences No.19(A) Yuquan Road Shijingshan District, Beijing 100049 P.R. China
- National Technology Innovation Center for Synthetic Biology National Engineering Laboratory for Industrial Enzymes and Tianjin Engineering Research Center of Biocatalytic Technology Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences 32 Xi Qi Dao Tianjin Airport Economic Area, Tianjin 300308 P.R. China
| | - Qiaqing Wu
- University of Chinese Academy of Sciences No.19(A) Yuquan Road Shijingshan District, Beijing 100049 P.R. China
- National Technology Innovation Center for Synthetic Biology National Engineering Laboratory for Industrial Enzymes and Tianjin Engineering Research Center of Biocatalytic Technology Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences 32 Xi Qi Dao Tianjin Airport Economic Area, Tianjin 300308 P.R. China
| | - Dunming Zhu
- University of Chinese Academy of Sciences No.19(A) Yuquan Road Shijingshan District, Beijing 100049 P.R. China
- National Technology Innovation Center for Synthetic Biology National Engineering Laboratory for Industrial Enzymes and Tianjin Engineering Research Center of Biocatalytic Technology Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences 32 Xi Qi Dao Tianjin Airport Economic Area, Tianjin 300308 P.R. China
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16
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Gao C, Xuan Q, Song Q. Cu‐Catalyzed
Chemoselective Reduction of
N
‐Heteroaromatics
with
NH
3
·
BH
3
in Aqueous Solution. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100259] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Chao Gao
- Institute of Next Generation Matter Transformation, College of Chemical Engineering and College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard Xiamen Fujian 361021 China
| | - Qingqing Xuan
- Institute of Next Generation Matter Transformation, College of Chemical Engineering and College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard Xiamen Fujian 361021 China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation, College of Chemical Engineering and College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard Xiamen Fujian 361021 China
- Key Laboratory of Molecule Synthesis and Function Discovery Fujian Province University College of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
- State Key Laboratory of Organometallic Chemistry and Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences Shanghai 200032 China
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17
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He H, Tang X, Cao Y, Antilla JC. Catalytic Asymmetric Reduction of α-Trifluoromethylated Imines with Catecholborane by BINOL-Derived Boro-phosphates. J Org Chem 2021; 86:4336-4345. [PMID: 33586987 DOI: 10.1021/acs.joc.0c03009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A catalytic enantioselective reduction of α-trifluoromethylated imines by a BINOL-derived boro-phosphate employing catecholborane as hydride source has been developed. This method provides an efficient route to prepare synthetically useful chiral α-trifluoromethylated amines in high yields and with excellent enantioselectivities (up to 98% yield and 96% ee) under mild conditions.
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Affiliation(s)
- Hualing He
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, People's Republic of China
| | - Xiaoxue Tang
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, People's Republic of China
| | - Yang Cao
- Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Jiangsu Ocean University, Lianyungang 222005, People's Republic of China
| | - Jon C Antilla
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, People's Republic of China
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18
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Highly enantioselective transfer hydrogenation catalyzed by diasteromeric mixtures of axially chiral (aR,S)- and (aS,S)-Biscarbolines. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.131924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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Ibrahim MAA, Rady ASM, Al‐Fahemi JH, Telb EMZ, Ahmed SA, Shawky AM, Moussa NAM. ±
π‐Hole Interactions: A Comparative Investigation Based on Boron‐Containing Molecules. ChemistrySelect 2020. [DOI: 10.1002/slct.202003231] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mahmoud A. A. Ibrahim
- Computational Chemistry Laboratory, Chemistry Department, Faculty of Science Minia University Minia 61519 Egypt
| | - Al‐shimaa S. M. Rady
- Computational Chemistry Laboratory, Chemistry Department, Faculty of Science Minia University Minia 61519 Egypt
| | - Jabir H. Al‐Fahemi
- Chemistry Department, Faculty of Applied Sciences Umm Al-Qura University Makkah 21955 Saudi Arabia
| | - Ebtisam M. Z. Telb
- Computational Chemistry Laboratory, Chemistry Department, Faculty of Science Minia University Minia 61519 Egypt
| | - Saleh A. Ahmed
- Chemistry Department, Faculty of Applied Sciences Umm Al-Qura University Makkah 21955 Saudi Arabia
- Chemistry Department, Faculty of Science Assiut University Assiut 71519 Egypt
| | - Ahmed M. Shawky
- Science and Technology Unit (STU) Umm Al-Qura University Makkah 21955 Saudi Arabia
- Central Laboratory for Micro-analysis Minia University Minia 61519 Egypt
| | - Nayra A. M. Moussa
- Computational Chemistry Laboratory, Chemistry Department, Faculty of Science Minia University Minia 61519 Egypt
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20
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Gelis C, Heusler A, Nairoukh Z, Glorius F. Catalytic Transfer Hydrogenation of Arenes and Heteroarenes. Chemistry 2020; 26:14090-14094. [PMID: 32519788 PMCID: PMC7702167 DOI: 10.1002/chem.202002777] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Indexed: 01/19/2023]
Abstract
Transfer hydrogenation reactions are of great interest to reduce diverse molecules under mild reaction conditions. To date, this type of reaction has only been successfully applied to alkenes, alkynes and polarized unsaturated compounds such as ketones, imines, pyridines, etc. The reduction of benzene derivatives by transfer hydrogenation has never been described, which is likely due to the high energy barrier required to dearomatize these compounds. In this context, we have developed a catalytic transfer hydrogenation reaction for the reduction of benzene derivatives and heteroarenes to form complex 3-dimensional scaffolds bearing various functional groups at room temperature without needing compressed hydrogen gas.
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Affiliation(s)
- Coralie Gelis
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Arne Heusler
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Zackaria Nairoukh
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
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21
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Tian J, Yang Z, Liang X, Liu N, Hu C, Tu X, Li X, Wang X. Borane‐Catalyzed Chemoselective and Enantioselective Reduction of 2‐Vinyl‐Substituted Pyridines. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007352] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jun‐Jie Tian
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Zhao‐Ying Yang
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Xin‐Shen Liang
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Ning Liu
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Chen‐Yu Hu
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Xian‐Shuang Tu
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Xiang Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Xiao‐Chen Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
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22
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Tian J, Yang Z, Liang X, Liu N, Hu C, Tu X, Li X, Wang X. Borane‐Catalyzed Chemoselective and Enantioselective Reduction of 2‐Vinyl‐Substituted Pyridines. Angew Chem Int Ed Engl 2020; 59:18452-18456. [DOI: 10.1002/anie.202007352] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Jun‐Jie Tian
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Zhao‐Ying Yang
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Xin‐Shen Liang
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Ning Liu
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Chen‐Yu Hu
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Xian‐Shuang Tu
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Xiang Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Xiao‐Chen Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
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23
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Na F, Lopez SS, Beauseigneur A, Hernandez LW, Sun Z, Antilla JC. Catalytic Asymmetric Transfer Hydrogenation of trans-Chalcone Derivatives Using BINOL-derived Boro-phosphates. Org Lett 2020; 22:5953-5957. [PMID: 32692927 DOI: 10.1021/acs.orglett.0c02042] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Chiral phosphoric-acid-catalyzed asymmetric reductions of trans-chalcones have been investigated in this work. A BINOL-derived boro-phosphate-catalyzed asymmetric transfer hydrogenation of the carbon-carbon double bond of trans-chalcone derivatives employing borane as a hydride source was realized. This methodology provides a convenient procedure to access chiral dihydrochalone derivatives in high yields and with high enantioselectivities under mild conditions.
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Affiliation(s)
- Fei Na
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Susana S Lopez
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Alice Beauseigneur
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Lucas W Hernandez
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Zhuoxin Sun
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Jon C Antilla
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
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24
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Wang Y, Cao X, Zhao L, Pi C, Ji J, Cui X, Wu Y. Generalized Chemoselective Transfer Hydrogenation/Hydrodeuteration. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000759] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yong Wang
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities Green Catalysis Center and College of Chemistry Zhengzhou University Zhengzhou 450052 People's Republic of China
| | - Xinyi Cao
- International College Zhengzhou University Zhengzhou 450052 People's Republic of China
| | - Leyao Zhao
- International College Zhengzhou University Zhengzhou 450052 People's Republic of China
| | - Chao Pi
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities Green Catalysis Center and College of Chemistry Zhengzhou University Zhengzhou 450052 People's Republic of China
| | - Jingfei Ji
- International College Zhengzhou University Zhengzhou 450052 People's Republic of China
| | - Xiuling Cui
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities Green Catalysis Center and College of Chemistry Zhengzhou University Zhengzhou 450052 People's Republic of China
| | - Yangjie Wu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities Green Catalysis Center and College of Chemistry Zhengzhou University Zhengzhou 450052 People's Republic of China
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25
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Saito K, Miyashita H, Ito Y, Yamanaka M, Akiyama T. Oxidative Kinetic Resolution of Acyclic Amines Based on Equilibrium Control. Org Lett 2020; 22:3128-3134. [DOI: 10.1021/acs.orglett.0c00887] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kodai Saito
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo 171-8588, Japan
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Hiromitsu Miyashita
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo 171-8588, Japan
| | - Yui Ito
- Department of Chemistry, Faculty of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Masahiro Yamanaka
- Department of Chemistry, Faculty of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Takahiko Akiyama
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo 171-8588, Japan
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26
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Du J, Chen J, Xia H, Zhao Y, Wang F, Liu H, Zhou W, Wang B. Commercially Available CuO Catalyzed Hydrogenation of Nitroarenes Using Ammonia Borane as a Hydrogen Source. ChemCatChem 2020. [DOI: 10.1002/cctc.201902391] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jialei Du
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong Institute for Advanced Interdisciplinary Research University of Jinan Jinan 250022, Shandong Province P.R. China
| | - Jie Chen
- School of Chemistry and Chemical Engineering University of Jinan Jinan 250022, Shandong Province P.R. China
| | - Hehuan Xia
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong Institute for Advanced Interdisciplinary Research University of Jinan Jinan 250022, Shandong Province P.R. China
| | - Yiwei Zhao
- State Key Laboratory of Crystal Materials Shandong University Jinan 250100, Shandong Province P.R. China
| | - Fang Wang
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong Institute for Advanced Interdisciplinary Research University of Jinan Jinan 250022, Shandong Province P.R. China
| | - Hong Liu
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong Institute for Advanced Interdisciplinary Research University of Jinan Jinan 250022, Shandong Province P.R. China
- State Key Laboratory of Crystal Materials Shandong University Jinan 250100, Shandong Province P.R. China
| | - Weijia Zhou
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong Institute for Advanced Interdisciplinary Research University of Jinan Jinan 250022, Shandong Province P.R. China
| | - Bin Wang
- School of Chemistry and Chemical Engineering University of Jinan Jinan 250022, Shandong Province P.R. China
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27
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Yang K, Lou Y, Wang C, Qi L, Fang T, Zhang F, Xu H, Zhou L, Li W, Zhang G, Yu P, Song Q. Chiral Brønsted Acid from Chiral Phosphoric Acid Boron Complex and Water: Asymmetric Reduction of Indoles. Angew Chem Int Ed Engl 2020; 59:3294-3299. [DOI: 10.1002/anie.201913656] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Indexed: 12/25/2022]
Affiliation(s)
- Kai Yang
- Key Laboratory of Molecule Synthesis and Function DiscoveryFujian Province UniversityCollege of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Yixian Lou
- Collaborative Innovation Center of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of Technology Hangzhou Zhejiang 310000 P. R. China
| | - Chenglan Wang
- Collaborative Innovation Center of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of Technology Hangzhou Zhejiang 310000 P. R. China
| | - Liang‐Wen Qi
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen 518055 China
| | - Tongchang Fang
- Key Laboratory of Molecule Synthesis and Function DiscoveryFujian Province UniversityCollege of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Feng Zhang
- Key Laboratory of Molecule Synthesis and Function DiscoveryFujian Province UniversityCollege of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Hetao Xu
- Key Laboratory of Molecule Synthesis and Function DiscoveryFujian Province UniversityCollege of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Lu Zhou
- Key Laboratory of Molecule Synthesis and Function DiscoveryFujian Province UniversityCollege of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Wangyang Li
- Key Laboratory of Molecule Synthesis and Function DiscoveryFujian Province UniversityCollege of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Guan Zhang
- Institute of Next Generation Matter TransformationCollege of Materials Science Engineering at Huaqiao University 668 Jimei Boulevard Xiamen Fujian 361021 China
| | - Peiyuan Yu
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen 518055 China
| | - Qiuling Song
- Key Laboratory of Molecule Synthesis and Function DiscoveryFujian Province UniversityCollege of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
- Collaborative Innovation Center of Yangtze River Delta Region Green PharmaceuticalsZhejiang University of Technology Hangzhou Zhejiang 310000 P. R. China
- Institute of Next Generation Matter TransformationCollege of Materials Science Engineering at Huaqiao University 668 Jimei Boulevard Xiamen Fujian 361021 China
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28
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Yang K, Lou Y, Wang C, Qi L, Fang T, Zhang F, Xu H, Zhou L, Li W, Zhang G, Yu P, Song Q. Chiral Brønsted Acid from Chiral Phosphoric Acid Boron Complex and Water: Asymmetric Reduction of Indoles. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913656] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Kai Yang
- Key Laboratory of Molecule Synthesis and Function Discovery Fujian Province University College of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Yixian Lou
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou Zhejiang 310000 P. R. China
| | - Chenglan Wang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou Zhejiang 310000 P. R. China
| | - Liang‐Wen Qi
- Department of Chemistry and Shenzhen Grubbs Institute Southern University of Science and Technology Shenzhen 518055 China
| | - Tongchang Fang
- Key Laboratory of Molecule Synthesis and Function Discovery Fujian Province University College of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Feng Zhang
- Key Laboratory of Molecule Synthesis and Function Discovery Fujian Province University College of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Hetao Xu
- Key Laboratory of Molecule Synthesis and Function Discovery Fujian Province University College of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Lu Zhou
- Key Laboratory of Molecule Synthesis and Function Discovery Fujian Province University College of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Wangyang Li
- Key Laboratory of Molecule Synthesis and Function Discovery Fujian Province University College of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
| | - Guan Zhang
- Institute of Next Generation Matter Transformation College of Materials Science Engineering at Huaqiao University 668 Jimei Boulevard Xiamen Fujian 361021 China
| | - Peiyuan Yu
- Department of Chemistry and Shenzhen Grubbs Institute Southern University of Science and Technology Shenzhen 518055 China
| | - Qiuling Song
- Key Laboratory of Molecule Synthesis and Function Discovery Fujian Province University College of Chemistry at Fuzhou University Fuzhou Fujian 350108 China
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou Zhejiang 310000 P. R. China
- Institute of Next Generation Matter Transformation College of Materials Science Engineering at Huaqiao University 668 Jimei Boulevard Xiamen Fujian 361021 China
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29
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Zhou Q, Meng W, Feng X, Du H, Yang J. Chiral phosphoric acid catalyzed asymmetric transfer hydrogenation of bulky aryl ketones with ammonia borane. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151394] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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30
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Barrios-Rivera J, Xu Y, Wills M, Vyas VK. A diversity of recently reported methodology for asymmetric imine reduction. Org Chem Front 2020. [DOI: 10.1039/d0qo00794c] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
This review describes recent developments in enantioselective imine reduction, including related substrates in which a CN bond is the target for reduction, and in situ methods.
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Affiliation(s)
| | - Yingjian Xu
- GoldenKeys High-tech Materials Co
- Ltd
- Guian New Area
- China
| | - Martin Wills
- Department of Chemistry
- The University of Warwick
- Coventry
- UK
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31
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Faverio C, Boselli MF, Medici F, Benaglia M. Ammonia borane as a reducing agent in organic synthesis. Org Biomol Chem 2020; 18:7789-7813. [DOI: 10.1039/d0ob01351j] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Ammonia borane is gaining increasing attention as a sustainable and atom-economical winning reagent for the reduction of several substrates.
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Affiliation(s)
- Chiara Faverio
- Dipartimento di Chimica
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | | | - Fabrizio Medici
- Dipartimento di Chimica
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Maurizio Benaglia
- Dipartimento di Chimica
- Università degli Studi di Milano
- 20133 Milano
- Italy
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32
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Wang F, Zheng LS, Lang QW, Yin C, Wu T, Phansavath P, Chen GQ, Ratovelomanana-Vidal V, Zhang X. Rh(iii)-Catalyzed diastereoselective transfer hydrogenation: an efficient entry to key intermediates of HIV protease inhibitors. Chem Commun (Camb) 2020; 56:3119-3122. [DOI: 10.1039/c9cc09793g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A highly efficient diastereoselective transfer hydrogenation of α-aminoalkyl α′-chloromethyl ketones catalyzed by a tethered rhodium complex was developed and successfully utilized in the synthesis of the key intermediates of HIV protease inhibitors.
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Affiliation(s)
- Fangyuan Wang
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150001
- People's Republic of China
- Shenzhen Grubbs Institute and Department of Chemistry
| | - Long-Sheng Zheng
- Shenzhen Grubbs Institute and Department of Chemistry
- Southern University of Science and Technology
- Shenzhen 518000
- People's Republic of China
| | - Qi-Wei Lang
- Shenzhen Grubbs Institute and Department of Chemistry
- Southern University of Science and Technology
- Shenzhen 518000
- People's Republic of China
| | - Congcong Yin
- Shenzhen Grubbs Institute and Department of Chemistry
- Southern University of Science and Technology
- Shenzhen 518000
- People's Republic of China
| | - Ting Wu
- Shenzhen Grubbs Institute and Department of Chemistry
- Southern University of Science and Technology
- Shenzhen 518000
- People's Republic of China
| | - Phannarath Phansavath
- PSL University
- Chimie ParisTech
- CNRS
- Institute of Chemistry for Life and Health Sciences
- CSB2D team
| | - Gen-Qiang Chen
- Shenzhen Grubbs Institute and Department of Chemistry
- Southern University of Science and Technology
- Shenzhen 518000
- People's Republic of China
| | | | - Xumu Zhang
- Shenzhen Grubbs Institute and Department of Chemistry
- Southern University of Science and Technology
- Shenzhen 518000
- People's Republic of China
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33
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Dong M, Wang J, Wu S, Zhao Y, Ma Y, Xing Y, Cao F, Li L, Li Z, Zhu H. Catalytic Mechanism Study on the 1,2‐ and 1,4‐Transfer Hydrogenation of Ketimines and β‐Enamino Esters Catalyzed by Axially Chiral Biscarboline‐Based Alcohols. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900665] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Mengxian Dong
- College of PharmacyHebei University Baoding 071002 People's Republic of China
| | - Jie Wang
- College of PharmacyHebei University Baoding 071002 People's Republic of China
| | - Shijie Wu
- College of PharmacyHebei University Baoding 071002 People's Republic of China
| | - Yang Zhao
- College of PharmacyHebei University Baoding 071002 People's Republic of China
| | - Yangyang Ma
- College of PharmacyHebei University Baoding 071002 People's Republic of China
| | - Yongfei Xing
- College of PharmacyHebei University Baoding 071002 People's Republic of China
| | - Fei Cao
- College of PharmacyHebei University Baoding 071002 People's Republic of China
| | - Longfei Li
- College of PharmacyHebei University Baoding 071002 People's Republic of China
| | - Zhenqiu Li
- College of Life ScienceHebei University Baoding 071002 People's Republic of China
| | - Huajie Zhu
- College of PharmacyHebei University Baoding 071002 People's Republic of China
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34
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Lundrigan T, Welsh EN, Hynes T, Tien CH, Adams MR, Roy KR, Robertson KN, Speed AWH. Enantioselective Imine Reduction Catalyzed by Phosphenium Ions. J Am Chem Soc 2019; 141:14083-14088. [PMID: 31441650 DOI: 10.1021/jacs.9b07293] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The first use of phosphenium cations in asymmetric catalysis is reported. A diazaphosphenium triflate, prepared in two or three steps on a multigram scale from commercially available materials, catalyzes the hydroboration or hydrosilylation of cyclic imines with enantiomeric ratios of up to 97:3. Catalyst loadings are as low as 0.2 mol %. Twenty-two aryl/heteroaryl pyrrolidines and piperidines were prepared using this method. Imines containing functional groups such as thiophenes or pyridyl rings that can challenge transition-metal catalysts were reduced employing these systems.
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Affiliation(s)
- Travis Lundrigan
- Department of Chemistry , Dalhousie University , Halifax , Nova Scotia , Canada B3H 4R2
| | - Erin N Welsh
- Department of Chemistry , Dalhousie University , Halifax , Nova Scotia , Canada B3H 4R2
| | - Toren Hynes
- Department of Chemistry , Dalhousie University , Halifax , Nova Scotia , Canada B3H 4R2
| | - Chieh-Hung Tien
- Department of Chemistry , Dalhousie University , Halifax , Nova Scotia , Canada B3H 4R2
| | - Matt R Adams
- Department of Chemistry , Dalhousie University , Halifax , Nova Scotia , Canada B3H 4R2
| | - Kayelani R Roy
- Department of Chemistry , Dalhousie University , Halifax , Nova Scotia , Canada B3H 4R2
| | - Katherine N Robertson
- Department of Chemistry , Saint Mary's University , Halifax , Nova Scotia , Canada B3H 3C3
| | - Alexander W H Speed
- Department of Chemistry , Dalhousie University , Halifax , Nova Scotia , Canada B3H 4R2
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35
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Hashmi OH, Champouret Y, Visseaux M. Highly Active Iminopyridyl Iron-Based Catalysts for the Polymerization of Isoprene. Molecules 2019; 24:molecules24173024. [PMID: 31438501 PMCID: PMC6749290 DOI: 10.3390/molecules24173024] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 07/28/2019] [Accepted: 08/07/2019] [Indexed: 11/17/2022] Open
Abstract
A series of iminopyridyl-based ligands, 6-[(Ar)N=C(R)]-2-C6H5N [(Ar = 2,6-Me2-C6H3, R = Me (L1); Ar = 2,6-iPr2-C6H3, R = Me (L2); Ar = 2,6-Me2-C6H3, R = H (L3); Ar = 2,6-iPr2-C6H3, R = H (L4); Ar = 3,5-(CF3)2-C6H3, R = Me (L5); Ar = C6F5, R = Me (L6)], and their corresponding iron (II) complexes were developed to investigate their application in the controlled coordinative polymerization of isoprene. The modulation of steric and electronic properties within this family of ligands/pre-catalysts has shown to influence the stereo-selectivity and activity of the polymerization of isoprene after activation. Upon activation with various co-catalysts such as AliBu3/[Ph3C][B(C6F5)4], AlEt3/[Ph3C][B(C6F5)4] or MAO, the resulting catalysts produced polyisoprenes with an excellent conversion (>99% of 500–5000 equiv.) within less than 1 h (TOF > 500 h−1) and having a variety of stereo-/regio-regularities. The presence of electron-donating and withdrawing groups drastically impacted the activity and the stereoselectivity of the catalysts during the course of the polymerization of isoprene. When activated with AliBu3/[Ph3C][B(C6F5)4], the complexes {6-[(2,6-Me2-C6H3)N=C(Me)]-2-C6H5N}FeCl2 (C1) and {6-[(2,6-iPr2-C6H3)N=C(Me)]-2-C6H5N}FeCl2 (C2) exhibited moderate trans-1,4 selectivity (>67%) while the iron-based systems bearing related aldiminopyridyl ligands {6-[(2,6-Me2-C6H3)N=C(H)]-2-C6H5N}FeCl2 (C3) and {6-[(2,6-iPr2-C6H3)N=C(H)]-2-C6H5N}FeCl2 (C4) were found to afford significant cis-1,4 selectivity at low temperature (>86% at −40 °C). On the other hand, the ternary {6-[(3,5-(CF3)2-C6H3)N=C(Me)]-2-C6H5N}FeCl2 (C5) or {6-[(C6F5)N=C(Me)]-2-C6H5N}FeCl2 (C6)/AliBu3/[Ph3C][B(C6F5)4] catalytic combinations showed exceptional activity for the polymerization of isoprene (TOF > 1,000,000 h−1), albeit providing less stereoselectivity.
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Affiliation(s)
- Obaid H Hashmi
- UMR 8181-UCCS-Unité de Catalyse et de Chimie du Solide, ENSCL, Centrale Lille, University of Artois, University of Lille, CNRS, F-59000 Lille, France
| | - Yohan Champouret
- UMR 8181-UCCS-Unité de Catalyse et de Chimie du Solide, ENSCL, Centrale Lille, University of Artois, University of Lille, CNRS, F-59000 Lille, France.
| | - Marc Visseaux
- UMR 8181-UCCS-Unité de Catalyse et de Chimie du Solide, ENSCL, Centrale Lille, University of Artois, University of Lille, CNRS, F-59000 Lille, France.
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Şen B, Aygün A, Şavk A, Gülbağça F, Gülbay SK, Çalımlı MH, Şen F. Binary Palladium–Nickel/Vulcan carbon-based nanoparticles as highly efficient catalyst for hydrogen evolution reaction at room temperature. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.04.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Boom DHA, Jupp AR, Slootweg JC. Dehydrogenation of Amine-Boranes Using p-Block Compounds. Chemistry 2019; 25:9133-9152. [PMID: 30964220 PMCID: PMC6771515 DOI: 10.1002/chem.201900679] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Indexed: 01/11/2023]
Abstract
Amine-boranes have gained a lot of attention due to their potential as hydrogen storage materials and their capacity to act as precursors for transfer hydrogenation. Therefore, a lot of effort has gone into the development of suitable transition- and main-group metal catalysts for the dehydrogenation of amine-boranes. During the past decade, new systems started to emerge solely based on p-block elements that promote the dehydrogenation of amine-boranes through hydrogen-transfer reactions, polymerization initiation, and main-group catalysis. In this review, we highlight the development of these p-block based systems for stoichiometric and catalytic amine-borane dehydrogenation and discuss the underlying mechanisms.
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Affiliation(s)
- Devin H. A. Boom
- Van 't Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041090 GDAmsterdamThe Netherlands
| | - Andrew R. Jupp
- Van 't Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041090 GDAmsterdamThe Netherlands
| | - J. Chris Slootweg
- Van 't Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041090 GDAmsterdamThe Netherlands
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Shan C, Zhang T, Xiong Q, Yan H, Bai R, Lan Y. Hydrogen‐Bond‐Induced Chiral Axis Construction: Theoretical Study of Cinchonine–Thiourea‐Catalyzed Enantioselective Intramolecular Cycloaddition. Chem Asian J 2019; 14:2731-2736. [DOI: 10.1002/asia.201900624] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 06/10/2019] [Indexed: 12/23/2022]
Affiliation(s)
- Chunhui Shan
- Postdoctoral Station of Biomedical EngineeringChongqing University Chongqing 400030 P.R. China
| | - Tao Zhang
- School of Chemistry and Chemical EngineeringChongqing Key Laboratory of Theoretical and Computational ChemistryChongqing University Chongqing 400030 P.R. China
| | - Qin Xiong
- School of Chemistry and Chemical EngineeringChongqing Key Laboratory of Theoretical and Computational ChemistryChongqing University Chongqing 400030 P.R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug, ResearchSchool of Pharmaceutical SciencesChongqing University Chongqing 400030 P.R. China
| | - Ruopeng Bai
- School of Chemistry and Chemical EngineeringChongqing Key Laboratory of Theoretical and Computational ChemistryChongqing University Chongqing 400030 P.R. China
| | - Yu Lan
- School of Chemistry and Chemical EngineeringChongqing Key Laboratory of Theoretical and Computational ChemistryChongqing University Chongqing 400030 P.R. China
- College of Chemistry and Molecular EngineeringZhengzhou University Zhengzhou 450001 P.R. China
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Dömling M, Arrowsmith M, Schmidt U, Werner L, Castro AC, Jiménez-Halla JOC, Bertermann R, Müssig J, Prieschl D, Braunschweig H. Spontaneous trans-Selective Transfer Hydrogenation of Apolar Boron-Boron Double Bonds. Angew Chem Int Ed Engl 2019; 58:9782-9786. [PMID: 31062910 DOI: 10.1002/anie.201902656] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 04/20/2019] [Indexed: 01/13/2023]
Abstract
The transfer hydrogenation of N-heterocyclic carbene (NHC)-supported diborenes with dimethylamine borane proceeds with high selectivity for the trans-1,2-dihydrodiboranes. DFT calculations, supported by kinetic studies and deuteration experiments, suggest a stepwise proton-first-hydride-second reaction mechanism via an intermediate μ-hydrodiboronium dimethylaminoborate ion pair.
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Affiliation(s)
- Michael Dömling
- Institut für Anorganische Chemie & the Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Merle Arrowsmith
- Institut für Anorganische Chemie & the Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Uwe Schmidt
- Institut für Anorganische Chemie & the Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Luis Werner
- Institut für Anorganische Chemie & the Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Abril C Castro
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Noria Alta S/N, 36050, Guanajuato, Mexico
| | - J Oscar C Jiménez-Halla
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Noria Alta S/N, 36050, Guanajuato, Mexico
| | - Rüdiger Bertermann
- Institut für Anorganische Chemie & the Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Jonas Müssig
- Institut für Anorganische Chemie & the Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Dominic Prieschl
- Institut für Anorganische Chemie & the Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Holger Braunschweig
- Institut für Anorganische Chemie & the Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
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40
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Dömling M, Arrowsmith M, Schmidt U, Werner L, Castro AC, Jiménez‐Halla JOC, Bertermann R, Müssig J, Prieschl D, Braunschweig H. Spontane
trans
‐selektive Transferhydrierung von unpolaren B=B‐Doppelbindungen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902656] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Michael Dömling
- Institut für Anorganische Chemie &, the Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Merle Arrowsmith
- Institut für Anorganische Chemie &, the Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Uwe Schmidt
- Institut für Anorganische Chemie &, the Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Luis Werner
- Institut für Anorganische Chemie &, the Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Abril C. Castro
- Departamento de QuímicaDivisión de Ciencias Naturales y ExactasUniversidad de Guanajuato Noria Alta S/N 36050 Guanajuato Mexiko
| | - J. Oscar C. Jiménez‐Halla
- Departamento de QuímicaDivisión de Ciencias Naturales y ExactasUniversidad de Guanajuato Noria Alta S/N 36050 Guanajuato Mexiko
| | - Rüdiger Bertermann
- Institut für Anorganische Chemie &, the Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Jonas Müssig
- Institut für Anorganische Chemie &, the Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Dominic Prieschl
- Institut für Anorganische Chemie &, the Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Holger Braunschweig
- Institut für Anorganische Chemie &, the Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
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Zhao W, Feng X, Yang J, Du H. Asymmetric transfer hydrogenations of β-N-substituted enamino esters with ammonia borane. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.03.060] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Valadbeigi Y, Kurtén T. Clustering of H2SO4 with BX3 (X = H, F, Cl, Br, CN, OH) compounds creates strong acids and superacids. COMPUT THEOR CHEM 2019. [DOI: 10.1016/j.comptc.2019.03.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Espinal-Viguri M, Neale SE, Coles NT, Macgregor SA, Webster RL. Room Temperature Iron-Catalyzed Transfer Hydrogenation and Regioselective Deuteration of Carbon-Carbon Double Bonds. J Am Chem Soc 2018; 141:572-582. [PMID: 30518206 DOI: 10.1021/jacs.8b11553] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An iron catalyst has been developed for the transfer hydrogenation of carbon-carbon multiple bonds. Using a well-defined β-diketiminate iron(II) precatalyst, a sacrificial amine and a borane, even simple, unactivated alkenes such as 1-hexene undergo hydrogenation within 1 h at room temperature. Tuning the reagent stoichiometry allows for semi- and complete hydrogenation of terminal alkynes. It is also possible to hydrogenate aminoalkenes and aminoalkynes without poisoning the catalyst through competitive amine ligation. Furthermore, by exploiting the separate protic and hydridic nature of the reagents, it is possible to regioselectively prepare monoisotopically labeled products. DFT calculations define a mechanism for the transfer hydrogenation of propene with nBuNH2 and HBpin that involves the initial formation of an iron(II)-hydride active species, 1,2-insertion of propene, and rate-limiting protonolysis of the resultant alkyl by the amine N-H bond. This mechanism is fully consistent with the selective deuteration studies, although the calculations also highlight alkene hydroboration and amine-borane dehydrocoupling as competitive processes. This was resolved by reassessing the nature of the active transfer hydrogenation agent: experimentally, a gel is observed in catalysis, and calculations suggest this can be formulated as an oligomeric species comprising H-bonded amine-borane adducts. Gel formation serves to reduce the effective concentrations of free HBpin and nBuNH2 and so disfavors both hydroboration and dehydrocoupling while allowing alkene migratory insertion (and hence transfer hydrogenation) to dominate.
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Affiliation(s)
- Maialen Espinal-Viguri
- Department of Chemistry , University of Bath , Claverton Down, Bath BA2 7AY , United Kingdom
| | - Samuel E Neale
- Institute of Chemical Sciences , Heriot-Watt University , Edinburgh EH14 4AS , United Kingdom
| | - Nathan T Coles
- Department of Chemistry , University of Bath , Claverton Down, Bath BA2 7AY , United Kingdom
| | - Stuart A Macgregor
- Institute of Chemical Sciences , Heriot-Watt University , Edinburgh EH14 4AS , United Kingdom
| | - Ruth L Webster
- Department of Chemistry , University of Bath , Claverton Down, Bath BA2 7AY , United Kingdom
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