1
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Li S, Wen YH, Song J, Gong LZ. Asymmetric redox benzylation of enals enabled by NHC/Ru cooperative catalysis. SCIENCE ADVANCES 2023; 9:eadf5606. [PMID: 37075106 PMCID: PMC10115414 DOI: 10.1126/sciadv.adf5606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The development of general methods for asymmetric benzylation of prochiral carbon nucleophiles remains a challenge in organic synthesis. The merging of ruthenium catalysis and N-heterocyclic carbene (NHC) catalysis for asymmetric redox benzylation of enals has been achieved, which opens up strategic opportunities for the asymmetric benzylation reactions. A wide range of 3,3'-disubstituted oxindoles with a stereogenic quaternary carbon center widely existing in natural products and biologically interesting molecules is successfully obtained with excellent enantioselectivities [up to 99% enantiomeric excess (ee)]. The generality of this catalytic strategy was further highlighted by its successful application in the late-stage functionalization of oxindole skeletons. Furthermore, the linear correlation between ee values of NHC precatalyst and the product elucidated the independent catalytic cycle of either the NHC catalyst or the ruthenium complex.
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Affiliation(s)
- Shuai Li
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Yu-Hua Wen
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Jin Song
- Institutes of Physical Science and Information Technology, Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Anhui University, Hefei 230601, China
- Corresponding author. (L.-Z. G.); (J. S.)
| | - Liu-Zhu Gong
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
- Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences, Hefei 230026, China
- Corresponding author. (L.-Z. G.); (J. S.)
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2
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Wang H, Qian H, Zhang J, Ma S. Catalytic Asymmetric Axially Chiral Allenyl C-P Bond Formation. J Am Chem Soc 2022; 144:12619-12626. [PMID: 35802534 DOI: 10.1021/jacs.2c04931] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Chiral organophosphorous compounds are very important in catalysis, organic syntheses, and medicinal chemistry. However, catalytic enantioselective protocols for the axially chiral allenyl phosphorus compounds have never been reported. Herein, a palladium-catalyzed enantioselective carbon-phosphorus bond formation reaction affording axially chiral allenyl phosphonates has been developed. The reaction enjoys high yields and ees accommodating a wide range of functional groups. Mechanistic studies have unveiled an overwhelming kinetic resolution process.
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Affiliation(s)
- Huanan Wang
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Lu, Shanghai 200433, P. R. China
| | - Hui Qian
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Lu, Shanghai 200433, P. R. China
| | - Junliang Zhang
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Lu, Shanghai 200433, P. R. China
| | - Shengming Ma
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Lu, Shanghai 200433, P. R. China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
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3
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Peng Y, Han C, Luo Y, Li G, Huo X, Zhang W. Nickel/Copper‐Cocatalyzed Asymmetric Benzylation of Aldimine Esters for the Enantioselective Synthesis of α‐Quaternary Amino Acids. Angew Chem Int Ed Engl 2022; 61:e202203448. [DOI: 10.1002/anie.202203448] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Indexed: 12/12/2022]
Affiliation(s)
- Youbin Peng
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Chongyu Han
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Yicong Luo
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Guanlin Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Xiaohong Huo
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
- College of Chemistry Zhengzhou University Zhengzhou 450052 China
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4
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Asai K, Miura M, Hirano K. Palladium-Catalyzed Cross-Coupling Reaction of Diarylmethanol Derivatives with Diborylmethane. J Org Chem 2022; 87:7436-7445. [PMID: 35608528 DOI: 10.1021/acs.joc.2c00715] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A palladium-catalyzed cross-coupling reaction of diarylmethanol derivatives with diborylmethane has been developed. The reaction proceeds chemoselectively to deliver the corresponding homobenzylic boronates in good yields.
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Affiliation(s)
- Kento Asai
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masahiro Miura
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
| | - Koji Hirano
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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5
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Catalytic asymmetric Tsuji-Trost α-benzylation reaction of N-unprotected amino acids and benzyl alcohol derivatives. Nat Commun 2022; 13:2509. [PMID: 35523802 PMCID: PMC9076619 DOI: 10.1038/s41467-022-30277-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 04/20/2022] [Indexed: 01/07/2023] Open
Abstract
Catalytic asymmetric Tsuji–Trost benzylation is a promising strategy for the preparation of chiral benzylic compounds. However, only a few such transformations with both good yields and enantioselectivities have been achieved since this reaction was first reported in 1992, and its use in current organic synthesis is restricted. In this work, we use N-unprotected amino acid esters as nucleophiles in reactions with benzyl alcohol derivatives. A ternary catalyst comprising a chiral aldehyde, a palladium species, and a Lewis acid is used to promote the reaction. Both mono- and polycyclic benzyl alcohols are excellent benzylation reagents. Various unnatural optically active α-benzyl amino acids are produced in good-to-excellent yields and with good-to-excellent enantioselectivities. This catalytic asymmetric method is used for the formal synthesis of two somatostatin mimetics and the proposed structure of natural product hypoestestatin 1. A mechanism that plausibly explains the stereoselective control is proposed. The catalytic asymmetric benzylations of prochiral nucleophiles are very limited. Here, the authors disclose an asymmetric α−benzylation of N-unprotected amino acids with benzyl alcohol derivatives by a chiral aldehyde-involved catalytic system.
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6
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Peng Y, Han C, Luo Y, Li G, Huo X, Zhang W. Nickel/Copper‐Cocatalyzed Asymmetric Benzylation of Aldimine Esters for the Enantioselective Synthesis of α‐Quaternary Amino Acids. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203448] [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]
Affiliation(s)
- Youbin Peng
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Chongyu Han
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Yicong Luo
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Guanlin Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Xiaohong Huo
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
- College of Chemistry Zhengzhou University Zhengzhou 450052 China
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7
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Chang X, Ran JD, Liu XT, Wang CJ. Catalytic Asymmetric Benzylation of Azomethine Ylides Enabled by Synergistic Lewis Acid/Palladium Catalysis. Org Lett 2022; 24:2573-2578. [PMID: 35348342 DOI: 10.1021/acs.orglett.2c00865] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The synergistic chiral Lewis acid/achiral Pd catalyst system was successfully applied in the enantioselective benzylation of various imine esters, giving a range of α-benzyl-substituted α-amino acid derivatives in satisfactory yield with excellent enantioselectivity. It is worth noting that this strategy exhibits good tolerance for bicyclic and monocyclic benzylic electrophiles. Furthermore, the utility of this synthetic protocol was demonstrated by the expedient preparation of enantioenriched antihypertensive drug α-methyl-l-dopa.
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Affiliation(s)
- Xin Chang
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Jing-Di Ran
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Xue-Tao Liu
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Chun-Jiang Wang
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.,State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
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8
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Cai WQ, Wei Q, Zhang QW. Ni-Catalyzed Enantioselective Benzylation of Secondary Phosphine Oxide. Org Lett 2022; 24:1258-1262. [PMID: 35107018 DOI: 10.1021/acs.orglett.2c00209] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A nickel-catalyzed benzylic substitution of secondary phosphine oxide was described, affording the dialkylated P-stereogenic tertiary phosphine oxides with high to excellent enantioselectivities. The reaction was performed under mild conditions with commercially available benzyl chlorides and bench stable secondary phosphine oxides, exhibiting broad functional group tolerance. It represented a practical example for the preparation of P-stereogenic phosphine compounds.
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Affiliation(s)
- Wen-Qiang Cai
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Qi Wei
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Qing-Wei Zhang
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
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9
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Asai K, Hirano K, Miura M. Palladium‐Catalyzed Benzylic Silylation of Diarylmethyl Carbonates with Silylboranes under Base‐Free Conditions. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101535] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kento Asai
- Osaka University: Osaka Daigaku Department of Applied Chemistry JAPAN
| | - Koji Hirano
- Osaka University: Osaka Daigaku Department of Applied Chemistry JAPAN
| | - Masahiro Miura
- Faculty of Engineering, Osaka University Department of Applied Chemistry 2-1 Yamada-oka 565-0871 Suita JAPAN
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10
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Lee KL, Feld J, Hume P, Söhnel T, Leitao E. The Synthesis and Mechanistic Considerations of a Series of Ammonium Monosubstituted H-Phosphonate Salts. Chemistry 2021; 27:815-824. [PMID: 32830385 DOI: 10.1002/chem.202003090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 08/01/2020] [Indexed: 11/11/2022]
Abstract
A series of ammonium monosubstituted H-phosphonate salts were synthesized by combining H-phosphonate diesters with amines in the absence of solvent at 80 °C. Variation of the ester substituent and amine produced a range of ionic liquids with low melting points. The products and by-products were analyzed by spectroscopic and spectrometric techniques in order to get a better mechanistic picture of the dealkylation and formal dearylation observed. For dialkyl H-phosphonate diesters, (RO)2 P(O)H (R=alkyl), the reaction proceeds via direct dealkylation with the reactivity increasing in the order R=iPr<Et<Me corresponding to DFT calculated activation enthalpies of 22.6, 20.8, and 17.9 kcal mol-1 . For the diphenyl H-phosphonate diesters, (PhO)2 P(O)H, the dearylation was found to proceed via phenol-assisted formation of a 5-coordinate intermediate, (PhO)3 PH(OH), from which P(OPh)3 and water were eliminated. The presence of an equivalent of water then facilitated the formation of P(OH)2 OPh and the amine, R'NH2 , subsequently abstracted a proton from it to yield [(PhO)PH(O)O]- [R'NH3 ]+ .
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Affiliation(s)
- Keng Lung Lee
- School of Chemical Sciences, University of Auckland, Private Bag, 92019, Auckland, 1142, New Zealand.,The MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
| | - Joey Feld
- School of Chemical Sciences, University of Auckland, Private Bag, 92019, Auckland, 1142, New Zealand
| | - Paul Hume
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand.,School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, 6140, Wellington, New Zealand
| | - Tilo Söhnel
- School of Chemical Sciences, University of Auckland, Private Bag, 92019, Auckland, 1142, New Zealand.,The MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
| | - Erin Leitao
- School of Chemical Sciences, University of Auckland, Private Bag, 92019, Auckland, 1142, New Zealand.,The MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
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11
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Yadav A, Kumar D, Mishra MK, Deeksha, Tripathi CB. Catalytic Enantioselective Synthesis of Aryl–Methyl Organophosphorus Compounds. J Org Chem 2021; 86:2000-2011. [DOI: 10.1021/acs.joc.0c02675] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Arun Yadav
- Medicinal and Process Chemistry Division, CSIR−Central Drug Research Institute, Lucknow 226031, India
- Chemical Sciences Division, Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Dileep Kumar
- Medicinal and Process Chemistry Division, CSIR−Central Drug Research Institute, Lucknow 226031, India
| | - Manish Kumar Mishra
- Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Deeksha
- Medicinal and Process Chemistry Division, CSIR−Central Drug Research Institute, Lucknow 226031, India
| | - Chandra Bhushan Tripathi
- Medicinal and Process Chemistry Division, CSIR−Central Drug Research Institute, Lucknow 226031, India
- Chemical Sciences Division, Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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12
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Wang D, Kan L, Ma Y, Liu L. NaO tBu-Catalyzed Hydrophosphonylation of δ-CN- δ-aryl-disubstituted para-Quinone Methides with Phosphine Oxides. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202104003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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13
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Shee M, Singh NDP. Cooperative photoredox and palladium catalysis: recent advances in various functionalization reactions. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02071k] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Cooperative photoredox and palladium catalysis for various functionalization reactions.
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Affiliation(s)
- Maniklal Shee
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur
- India
| | - N. D. Pradeep Singh
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur
- India
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14
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Asai K, Hirano K, Miura M. Divergent Synthesis of Isonitriles and Nitriles by Palladium-Catalyzed Benzylic Substitution with TMSCN. J Org Chem 2020; 85:12703-12714. [PMID: 32907327 DOI: 10.1021/acs.joc.0c01861] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ligand-controlled palladium-catalyzed divergent synthesis of isonitriles and nitriles from benzylic carbonates and TMSCN has been developed. The BINAP- or DPEphos-ligated palladium catalyst selectively provides the corresponding benzylic isonitriles, whereas their regioisomers, benzylic nitriles, are formed exclusively under phosphine ligand-free conditions. Mechanistic studies reveal that isonitrile is the primary product under both conditions, but it is isomerized into nitrile in the absence of ancillary phosphine ligands.
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Affiliation(s)
- Kento Asai
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Koji Hirano
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masahiro Miura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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15
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Chen C, Sun W, Yan Y, Yang F, Wang Y, Zhu Y, Liu L, Zhu B. Palladium‐Catalyzed Phosphoryl‐Carbamoylation of Alkenes: Construction of Nonbenzylic C(
sp
3
)−P(O)R
2
Bonds via C(
sp
3
)−Pd(II)−P(O)R
2
Reductive Elimination. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000337] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chen Chen
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of ChemistryTianjin Normal University Tianjin 300387 People's Republic of China
| | - Wan Sun
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of ChemistryTianjin Normal University Tianjin 300387 People's Republic of China
| | - Yan Yan
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of ChemistryTianjin Normal University Tianjin 300387 People's Republic of China
| | - Fang Yang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of ChemistryTianjin Normal University Tianjin 300387 People's Republic of China
| | - Yuebo Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of ChemistryTianjin Normal University Tianjin 300387 People's Republic of China
| | - Yan‐Ping Zhu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of ShandongYantai University Shandong, Yantai 264005 People's Republic of China
| | - Liying Liu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of ChemistryTianjin Normal University Tianjin 300387 People's Republic of China
| | - Bolin Zhu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of ChemistryTianjin Normal University Tianjin 300387 People's Republic of China
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16
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Photoredox/palladium-cocatalyzed enantioselective alkylation of secondary benzyl carbonates with 4-alkyl-1,4-dihydropyridines. Sci China Chem 2020. [DOI: 10.1007/s11426-019-9732-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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17
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Yuan H, Kowah JA, Jiang J. Base-promoted hydrophosphination of para-quinone methides under ultrasonic irradiation: A rapid and efficient synthesis of diarylmethyl phosphorus oxides. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151748] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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18
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Matsude A, Hirano K, Miura M. Palladium‐Catalyzed Intramolecular Mizoroki‐Heck‐Type Reaction of Diarylmethyl Carbonates. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901398] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Akihiro Matsude
- Department of Applied Chemistry, Graduate School of Engineering Osaka University, Suita Osaka 565-0871 Japan
| | - Koji Hirano
- Department of Applied Chemistry, Graduate School of Engineering Osaka University, Suita Osaka 565-0871 Japan
| | - Masahiro Miura
- Department of Applied Chemistry, Graduate School of Engineering Osaka University, Suita Osaka 565-0871 Japan
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19
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Lee KL, Feld J, Ben‐Tal Y, Guo Z, Hume P, Leitao EM. Facile Substituent Exchange at
H
‐Phosphonate Diesters Limiting an Effective Synthesis of
D
‐Phosphonate Diesters. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900430] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Keng Lung Lee
- School of Chemical SciencesUniversity of Auckland, Private Bag 92019 Auckland 1142 New Zealand
| | - Joey Feld
- School of Chemical SciencesUniversity of Auckland, Private Bag 92019 Auckland 1142 New Zealand
| | - Yael Ben‐Tal
- School of Chemical SciencesUniversity of Auckland, Private Bag 92019 Auckland 1142 New Zealand
| | - Zhaoyang Guo
- School of Chemical SciencesUniversity of Auckland, Private Bag 92019 Auckland 1142 New Zealand
| | - Paul Hume
- School of Chemical and Physical SciencesVictoria University Wellington, Wellington 6010 New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology New Zealand
| | - Erin M. Leitao
- School of Chemical SciencesUniversity of Auckland, Private Bag 92019 Auckland 1142 New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology New Zealand
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20
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Hong Y, Liu W, Dong M, Chen X, Xu T, Tian P, Tong X. Pd(0)-Catalyzed Cyclizative Phosphorylation of (Z)-1-Iodo-1,6-diene: Synthesis of Alkylphosphonate and Alkylthionophosphonate. Org Lett 2019; 21:5742-5746. [PMID: 31283243 DOI: 10.1021/acs.orglett.9b02149] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A palladium-catalyzed cyclizative phosphorylation reaction of (Z)-1-iodo-1,6-diene with diethyl H-phosphonate is developed, which provides facile access to unsaturated six-membered heterocycles bearing an alkylphosphonate group. The key step of this process is the efficient capture of the involved alkyl-Pd(II) species by H-phosphonate with the help of CsF, followed by reductive elimination of alkyl-Pd(II)-P(O)(OEt)2. Moreover, this reaction is successfully extended to H-thionophosphonate.
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Affiliation(s)
- Yang Hong
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering , Changzhou University , Changzhou , 213164 , China
| | - Wei Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering , Changzhou University , Changzhou , 213164 , China
| | - Ming Dong
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering , Changzhou University , Changzhou , 213164 , China
| | - Xin Chen
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering , Changzhou University , Changzhou , 213164 , China
| | - Tong Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering , Changzhou University , Changzhou , 213164 , China
| | - Ping Tian
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China
| | - Xiaofeng Tong
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering , Changzhou University , Changzhou , 213164 , China
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21
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Prasad SS, Singh DK, Kim I. One-Pot, Three-Component Approach to Diarylmethylphosphonates: A Direct Entry to Polycyclic Aromatic Systems. J Org Chem 2019; 84:6323-6336. [PMID: 30990320 DOI: 10.1021/acs.joc.9b00668] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A new type of three-component reaction was developed consisting of aldehydes, electron-rich (hetero)arenes, and trialkyl phosphite, which provided facile access to a wide range of diarylmethylphosphonates under mild reaction conditions. Simple one- or two-step synthetic manipulation of the resulting compounds enabled us to reach several polycyclic (hetero)aromatic systems efficiently.
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Affiliation(s)
- Sure Siva Prasad
- College of Pharmacy and Yonsei Institute of Pharmaceutical Sciences , Yonsei University , 85 Songdogwahak-ro , Yeonsu-gu, Incheon 21983 , Republic of Korea
| | - Dileep Kumar Singh
- College of Pharmacy and Yonsei Institute of Pharmaceutical Sciences , Yonsei University , 85 Songdogwahak-ro , Yeonsu-gu, Incheon 21983 , Republic of Korea
| | - Ikyon Kim
- College of Pharmacy and Yonsei Institute of Pharmaceutical Sciences , Yonsei University , 85 Songdogwahak-ro , Yeonsu-gu, Incheon 21983 , Republic of Korea
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22
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Weng JQ, Xing LL, Hou WR, Liang RX, Jia YX. Palladium-catalyzed dearomative arylphosphorylation of indoles. Org Chem Front 2019. [DOI: 10.1039/c9qo00246d] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A palladium-catalyzed dearomative arylphosphorylation reaction of indoles involving C–C/C–P bond formation is developed.
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Affiliation(s)
- Jian-Quan Weng
- College of Chemical Engineering
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Ling-Ling Xing
- College of Chemical Engineering
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Wen-Ren Hou
- College of Chemical Engineering
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Ren-Xiao Liang
- College of Chemical Engineering
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Yi-Xia Jia
- College of Chemical Engineering
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology
- Zhejiang University of Technology
- Hangzhou 310014
- China
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23
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Pound SM, Watson MP. Asymmetric synthesis via stereospecific C-N and C-O bond activation of alkyl amine and alcohol derivatives. Chem Commun (Camb) 2018; 54:12286-12301. [PMID: 30283929 PMCID: PMC6261259 DOI: 10.1039/c8cc07093h] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This perspective showcases our development of benzylic and allylic amine and alcohol derivatives as electrophiles for stereospecific, nickel-catalyzed cross-coupling reactions, as well as the prior art that inspired our efforts. The success of our effort has relied on the use of benzyl ammonium triflates as electrophiles for cross-couplings via C-N bond activation and benzylic and allylic carboxylates for cross-couplings via C-O bond activation. Our work, along with others' exciting discoveries, has demonstrated the potential of stereospecific, nickel-catalyzed cross-couplings of alkyl electrophiles in asymmetric synthesis, and enables efficient generation of both tertiary and quaternary stereocenters.
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Affiliation(s)
- Sarah M Pound
- Department of Chemistry & Biochemistry, University of Delaware, Newark, Delaware 19716, USA.
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