1
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Ghosh KK, RajanBabu TV. Ligand Effects in Carboxylic Ester- and Aldehyde-Assisted β-C-H Activation in Regiodivergent and Enantioselective Cycloisomerization-Hydroalkenylation and Cycloisomerization-Hydroarylation, and [2 + 2 + 2]-Cycloadditions of 1,6-Enynes. J Am Chem Soc 2024; 146:18753-18770. [PMID: 38935521 DOI: 10.1021/jacs.4c06796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
Herein, we report room temperature, atom-economic protocols for high regio- and enantioselective tandem cycloisomerization-hydroarylation and cycloisomerization-hydroalkenylation of 1,6-enynes leading to vicinal carba-functionalized pyrrolidines, tetrahydrofurans, and cyclopentanes. The latter steps in these processes involve carbonyl-coordination-assisted ortho-C-H activation of aromatic aldehydes and esters, and, a similar, yet rarely seen, β-C-H activation in the case of the acrylates. Synthetically useful enantioselective versions of such reactions are rare and are limited to the C2-H activation of indoles and pyrroles. A similar reaction is also observed with N-vinylphthalimide, which also has a carbonyl group suitable for C-H activation. A dibenzooxaphosphole ligand, (2S,2S',3S,3S')-MeO-BIBOP was uniquely identified as crucial to achieving the challenging regio- and enantioselectivity. This methodology gives access to substituted five-membered carbo- and heterocyclic compounds in good yields and excellent enantioselectivities under a low catalyst loading. A primary KIE of 3.5 is observed in an intermolecular competition experiment with methyl benzoate and d5-methyl benzoate, which indicates that the C-H cleavage is the turnover-limiting step of this process. Unlike the acrylates, which undergoes exclusive hydroalkenylation, a β, γ-unsaturated ester, methyl but-3-enoate, undergoes the highly enantioselective cycloisomerization-coupling sequence with a 1,6-enyne giving either a [2 + 2 + 2]-cycloaddition with (S, S)-BDPP or hydroalkenylation with (2S,2'S,3S,3'S)-MeO-BIBOP depending on the ligand employed. The (E)-configuration of the newly formed double bond at the terminal alkynyl carbon (of the starting enyne) in the hydroalkenylation product of β,γ-unsaturated ester suggests a more classical migratory insertion-β-hydride elimination route for the formation of this product.
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Affiliation(s)
- Kiron K Ghosh
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - T V RajanBabu
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
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2
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Ning C, Yu Z, Shi M, Wei Y. Palladium-catalyzed selective C-C bond cleavage of keto-vinylidenecyclopropanes: construction of structurally rich dihydrofurans and tetrahydrofurans. Chem Sci 2024; 15:9192-9200. [PMID: 38903235 PMCID: PMC11186342 DOI: 10.1039/d4sc02536a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 05/14/2024] [Indexed: 06/22/2024] Open
Abstract
Palladium-catalyzed selective cleavage of the distal C-C bond and proximal C-C bond of keto-vinylidenecyclopropanes by altering the sterically bulky phosphine ligands has been realized. The proximal C-C bond cleavage can be achieved by using dtbpf as a phosphine ligand, affording bicyclic products containing dihydrofuran skeletons in good yields along with broad substrate scope. In proximal C-C bond cleavage reactions, the eight-membered cyclic palladium intermediate plays a key role in the reaction. The [3 + 2] cycloaddition of keto-vinylidenecyclopropanes through the distal C-C bond cleavage can be effectively accomplished with t BuXPhos as a phosphine ligand and ZnCl2 as an additive, delivering bicyclic products containing tetrahydrofuran skeletons in good yields. The further transformation of these bicyclic products has been demonstrated, and the reaction mechanisms of two different C-C bond cleavage reactions have been investigated by control experiments and DFT calculations.
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Affiliation(s)
- Chao Ning
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry & Molecular Engineering, East China University of Science and Technology Meilong Road No.130 Shanghai 200237 China
| | - Ziqi Yu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry & Molecular Engineering, East China University of Science and Technology Meilong Road No.130 Shanghai 200237 China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry & Molecular Engineering, East China University of Science and Technology Meilong Road No.130 Shanghai 200237 China
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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3
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Ning C, Rui KH, Wei Y, Shi M. Rh(i)-catalyzed dimerization of ene-vinylidenecyclopropanes for the construction of spiro[4,5]decanes and mechanistic studies. Chem Sci 2022; 13:7310-7317. [PMID: 35799819 PMCID: PMC9214856 DOI: 10.1039/d1sc06986a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 05/31/2022] [Indexed: 07/22/2023] Open
Abstract
Rh(i) complex catalyzed dimerization of ene-vinylidenecyclopropanes took place smoothly to construct a series of products containing spiro[4,5]decane skeletons featuring a simple operation procedure, mild reaction conditions, and good functional group tolerance. In this paper, the combination of experimental and computational studies reveals a counterion-assisted Rh(i)-Rh(iii)-Rh(v)-Rh(iii)-Rh(i) catalytic cycle involving tandem oxidative cyclometallation/reductive elimination/selective oxidative addition/selective reductive elimination/reductive elimination steps; in addition, a pentavalent spiro-rhodium intermediate is identified as the key intermediate in this dimerization reaction upon DFT calculation.
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Affiliation(s)
- Chao Ning
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Key Laboratory for Advanced Materials, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry & Molecular Engineering, East China University of Science and Technology Meilong Road No. 130 Shanghai 200237 China
| | - Kang-Hua Rui
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Key Laboratory for Advanced Materials, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry & Molecular Engineering, East China University of Science and Technology Meilong Road No. 130 Shanghai 200237 China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Key Laboratory for Advanced Materials, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry & Molecular Engineering, East China University of Science and Technology Meilong Road No. 130 Shanghai 200237 China
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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4
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Xie L, He A, Li D, Li T, Yang L, Huang K, Xu Y, Zhao G, Liu J, Liu K, Chen J, Ozaki Y, Noda I. Deprotonation from an OH on myo-Inositol Promoted by μ 2-Bridges with Possible Regioselectivity/Chiral Selectivity. Inorg Chem 2022; 61:6138-6148. [PMID: 35412316 DOI: 10.1021/acs.inorgchem.2c00288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Single-crystal structures of myo-inositol complexes with erbium ([Er2(C6H11O6)2(H2O)5Cl2]Cl2(H2O)4, denoted ErI hereafter) and strontium (Sr(C6H12O6)2(H2O)2Cl2, denoted SrI hereafter) are described. In ErI, deprotonation occurs on an OH of myo-inositol, although the complex is synthesized in an acidic solution, and the pKa values of all of the OHs in myo-inositol are larger than 12. The deprotonated OH is involved in a μ2-bridge. The polarization from two Er3+ ions activates the chemically relatively inert OH and promotes deprotonation. In the stable conformation of myo-inositol, there are five equatorial OHs and one axial OH. The deprotonation occurs on the only axial OH, suggesting that the deprotonation possesses characteristics of regioselectivity/chiral selectivity. Two Er3+ ions in the μ2-bridge are stabilized by five-membered rings formed by chelating Er3+ with an O-C-C-O moiety. As revealed by the X-ray crystallography study, the absolute values of the O-C-C-O torsion angles decrease from ∼60 to ∼45° upon chelating. Since the O-C-C-O moiety is within a six-membered ring, the variation of the torsion angle may exert distortion of the chair conformation. Quantum chemistry calculation results indicate that an axial OH flanked by two equatorial OHs (double ax-eq motif) is favorable for the formation of a μ2-bridge, accounting for the selectivity. The double ax-eq motif may be used in a rational design of high-performance catalysts where deprotonation with high regioselectivity/chiral selectivity is carried out.
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Affiliation(s)
- Linchen Xie
- State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, School of Physics, Peking University, Beijing 100871, China.,Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.,School of Biology and Medicine, Beijing City University, Beijing 100094, China
| | - Anqi He
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Da Li
- School of Biology and Medicine, Beijing City University, Beijing 100094, China
| | - Tianyi Li
- State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, School of Physics, Peking University, Beijing 100871, China
| | - Limin Yang
- State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, School of Physics, Peking University, Beijing 100871, China
| | - Kun Huang
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Yizhuang Xu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Guozhong Zhao
- Department of Physics, Capital Normal University, Beijing Advanced Innovation Center of Imaging Technology, Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Beijing 100048, China
| | - Jingyu Liu
- Department of Physics, Capital Normal University, Beijing Advanced Innovation Center of Imaging Technology, Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Beijing 100048, China
| | - Kexin Liu
- State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, School of Physics, Peking University, Beijing 100871, China
| | - Jia'er Chen
- State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, School of Physics, Peking University, Beijing 100871, China
| | - Yukihiro Ozaki
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.,School of Biological and Environmental Sciences, Kwansei Gakuin University, Sanda, Hyogo 669-1337, Japan
| | - Isao Noda
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.,Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
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5
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Teng Q, Chen D, Tung CH, Xu Z. Asymmetric synthesis of tricyclic 6,5,5-fused polycycles by desymmetric Pauson-Khand reaction. Org Chem Front 2022. [DOI: 10.1039/d1qo01878g] [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
A new rhodium(I)-BINAP-catalyzed enantioselective desymmetric Pauson-Khand (PK) reaction of prochiral 1,6-enynes with CO has been developed. Diverse tricyclic 6,5,5-fused bowl type polycycles with three continuous chiral centers were synthesized in...
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6
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Herbort JH, Lalisse RF, Hadad CM, RajanBabu TV. Cationic Co(I) Catalysts for Regiodivergent Hydroalkenylation of 1,6-Enynes. An Uncommon cis-β-C-H Activation Leads to Z-Selective Coupling of Acrylates. ACS Catal 2021; 11:9605-9617. [PMID: 34745711 DOI: 10.1021/acscatal.1c02530] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Two intermolecular hydroalkenylation reactions of 1,6-enynes are presented which yield substituted 5-membered carbo- and -heterocycles. This reactivity is enabled by a cationic bis-diphenylphosphinopropane (DPPP)CoI species which forms a cobaltacyclopentene intermediate by oxidative cyclization of the enyne. This key species interacts with alkenes in distinct fashion, depending on the identity of the coupling partner to give regiodivergent products. Simple alkenes undergo insertion reactions to furnish 1,3-dienes whereby one of the alkenes is tetrasubstituted. When acrylates are employed as coupling partners, the site of intermolecular C-C formation shifts from the alkyne to the alkene motif of the enyne, yielding Z-substituted-acrylate derivatives. Computational studies provide support for our experimental observations and show that the turnover-limiting steps in both reactions are the interactions of the alkenes with the cobaltacyclopentene intermediate via either a 1,2-insertion in the case of ethylene, or an unexpected β-C-H activation in the case of most acrylates. Thus, the H syn to the ester is activated through the coordination of the acrylate carbonyl to the cobaltacycle intermediate, which explains the uncommon Z-selectivity and regiodivergence. Variable time normalization analysis (VTNA) of the kinetic data reveals a dependance upon the concentration of cobalt, acrylate, and activator. A KIE of 2.1 was observed with methyl methacrylate in separate flask experiments, indicating that C-H cleavage is the turnover-limiting step in the catalytic cycle. Lastly, a Hammett study of aryl-substituted enynes yields a ρ value of -0.4, indicating that more electron-rich substituents accelerate the rate of the reaction.
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Affiliation(s)
- James H. Herbort
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Remy F. Lalisse
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Christopher M. Hadad
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - T. V. RajanBabu
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
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7
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Suzuki S, Shibata Y, Tanaka K. Rhodium-Catalyzed Asymmetric [2+2+2] Cycloaddition of 1,6-Enynes with Racemic Secondary Allylic Alcohols through Kinetic Resolution. Chemistry 2020; 26:3698-3702. [PMID: 31903635 DOI: 10.1002/chem.202000010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Indexed: 01/01/2023]
Abstract
It has been established that a cationic rhodium(I)/P-phos complex catalyzes the asymmetric [2+2+2] cycloaddition of 1,6-enynes with racemic secondary allylic alcohols to produce the corresponding chiral bicyclic cyclohexenes, possessing three stereogenic centers, as a single diastereomer with excellent ee values. Mechanistic experiments revealed that the present cycloaddition proceeds through the kinetic resolution of the racemic secondary allylic alcohols, in which one enantiomer preferentially reacts with the 1,6-enyne.
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Affiliation(s)
- Shunsuke Suzuki
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Yu Shibata
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
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8
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Teng Q, Mao W, Chen D, Wang Z, Tung C, Xu Z. Asymmetric Synthesis of a Fused Tricyclic Hydronaphthofuran Scaffold by Desymmetric [2+2+2] Cycloaddition. Angew Chem Int Ed Engl 2020; 59:2220-2224. [DOI: 10.1002/anie.201911071] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 10/15/2019] [Indexed: 12/18/2022]
Affiliation(s)
- Qi Teng
- Key Lab for Colloid and Interface Chemistry of Education MinistryDepartment of ChemistryShandong University No. 27 South Shanda Road Jinan 250100 China
| | - Wenxiu Mao
- Key Lab for Colloid and Interface Chemistry of Education MinistryDepartment of ChemistryShandong University No. 27 South Shanda Road Jinan 250100 China
| | - Dong Chen
- Key Lab for Colloid and Interface Chemistry of Education MinistryDepartment of ChemistryShandong University No. 27 South Shanda Road Jinan 250100 China
| | - Zhen Wang
- Key Lab for Colloid and Interface Chemistry of Education MinistryDepartment of ChemistryShandong University No. 27 South Shanda Road Jinan 250100 China
| | - Chen‐Ho Tung
- Key Lab for Colloid and Interface Chemistry of Education MinistryDepartment of ChemistryShandong University No. 27 South Shanda Road Jinan 250100 China
| | - Zhenghu Xu
- Key Lab for Colloid and Interface Chemistry of Education MinistryDepartment of ChemistryShandong University No. 27 South Shanda Road Jinan 250100 China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryChinese Academy of Sciences Shanghai 200032 China
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9
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Teng Q, Mao W, Chen D, Wang Z, Tung C, Xu Z. Asymmetric Synthesis of a Fused Tricyclic Hydronaphthofuran Scaffold by Desymmetric [2+2+2] Cycloaddition. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201911071] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Qi Teng
- Key Lab for Colloid and Interface Chemistry of Education MinistryDepartment of ChemistryShandong University No. 27 South Shanda Road Jinan 250100 China
| | - Wenxiu Mao
- Key Lab for Colloid and Interface Chemistry of Education MinistryDepartment of ChemistryShandong University No. 27 South Shanda Road Jinan 250100 China
| | - Dong Chen
- Key Lab for Colloid and Interface Chemistry of Education MinistryDepartment of ChemistryShandong University No. 27 South Shanda Road Jinan 250100 China
| | - Zhen Wang
- Key Lab for Colloid and Interface Chemistry of Education MinistryDepartment of ChemistryShandong University No. 27 South Shanda Road Jinan 250100 China
| | - Chen‐Ho Tung
- Key Lab for Colloid and Interface Chemistry of Education MinistryDepartment of ChemistryShandong University No. 27 South Shanda Road Jinan 250100 China
| | - Zhenghu Xu
- Key Lab for Colloid and Interface Chemistry of Education MinistryDepartment of ChemistryShandong University No. 27 South Shanda Road Jinan 250100 China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryChinese Academy of Sciences Shanghai 200032 China
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10
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Liu ZY, Zhang M, Wang XC. Hydrosilylation-Promoted Furan Diels-Alder Cycloadditions with Stereoselectivity Controlled by the Silyl Group. J Am Chem Soc 2019; 142:581-588. [PMID: 31809027 DOI: 10.1021/jacs.9b11909] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Herein we describe an unprecedented B(C6F5)3-catalyzed cascade reaction of N-allyl-N-furfurylamides involving an initial intramolecular furan Diels-Alder reaction and subsequent ether cleavage. The reaction has a broad substrate scope, even tolerating a trialkyl-substituted olefin as the dienophile, which has not previously been observed with conventional furan Diels-Alder reactions. In addition, the relative configuration of the product can be controlled by the choice of the silyl group: reactions involving Et3SiH and iPr3SiH gave different diastereomers. Control experiments and the computational studies revealed that the steric bulk of the silyl group plays a key role in determining the reaction pathway and thus the relative configuration of the product.
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Affiliation(s)
- Zhi-Yun Liu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Ming Zhang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Xiao-Chen Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
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11
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Mao ZY, Liu YW, Ma RJ, Ye JL, Si CM, Wei BG, Lin GQ. Divergent synthesis of N-heterocyclic 1,6-enynes through a zinc-catalyzed decarboxylative A 3 reaction. Chem Commun (Camb) 2019; 55:14170-14173. [PMID: 31701971 DOI: 10.1039/c9cc06985b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A zinc-catalyzed decarboxylative A3 reaction of cyclic amino acids, α,β-unsaturated aldehydes and terminal alkynes has been developed. A series of functionalized N-heterocyclic 1,6-enynes have been successfully obtained with excellent regioselectivities through this novel approach. In addition, the utility of this straightforward process is demonstrated by the preparation of a polycyclic nitrogen-containing heterocyclic compound.
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Affiliation(s)
- Zhuo-Ya Mao
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, China.
| | - Yi-Wen Liu
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, China.
| | - Rui-Jun Ma
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, China.
| | - Jian-Liang Ye
- College of Chemistry and Chemical Engineering and the Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen 361005, China
| | - Chang-Mei Si
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, China.
| | - Bang-Guo Wei
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, China.
| | - Guo-Qiang Lin
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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Ni J, Chen J, Zhou Y, Wang G, Li S, He Z, Sun W, Fan B. Rhodium‐Catalyzed Asymmetric [2+2+2] Cycloaddition Reactions of 1,6‐Enynes and Oxabenzonorbornadienes. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900380] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Jianxiao Ni
- YMU-HKBU Joint Laboratory of Traditional Natural MedicineYunnan Minzu University Yuehua Street Kunming 650500 People's Republic of China
| | - Jingchao Chen
- YMU-HKBU Joint Laboratory of Traditional Natural MedicineYunnan Minzu University Yuehua Street Kunming 650500 People's Republic of China
| | - Yongyun Zhou
- YMU-HKBU Joint Laboratory of Traditional Natural MedicineYunnan Minzu University Yuehua Street Kunming 650500 People's Republic of China
| | - Gaowei Wang
- YMU-HKBU Joint Laboratory of Traditional Natural MedicineYunnan Minzu University Yuehua Street Kunming 650500 People's Republic of China
| | - Sida Li
- YMU-HKBU Joint Laboratory of Traditional Natural MedicineYunnan Minzu University Yuehua Street Kunming 650500 People's Republic of China
| | - Zhenxiu He
- YMU-HKBU Joint Laboratory of Traditional Natural MedicineYunnan Minzu University Yuehua Street Kunming 650500 People's Republic of China
| | - Weiqing Sun
- YMU-HKBU Joint Laboratory of Traditional Natural MedicineYunnan Minzu University Yuehua Street Kunming 650500 People's Republic of China
| | - Baomin Fan
- YMU-HKBU Joint Laboratory of Traditional Natural MedicineYunnan Minzu University Yuehua Street Kunming 650500 People's Republic of China
- Key Laboratory of Chemistry in Ethnic Medicinal ResourcesYunnan Minzu University Yuehua Street Kunming 650500 People's Republic of China
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13
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Activation, Deactivation and Reversibility Phenomena in Homogeneous Catalysis: A Showcase based on the Chemistry of Rhodium/Phosphine Catalysts. Catalysts 2019. [DOI: 10.3390/catal9070582] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In the present work, the rich chemistry of rhodium/phosphine complexes, which are applied as homogeneous catalysts to promote a wide range of chemical transformations, has been used to showcase how the in situ generation of precatalysts, the conversion of precatalysts into the actually active species, as well as the reaction of the catalyst itself with other components in the reaction medium (substrates, solvents, additives) can lead to a number of deactivation phenomena and thus impact the efficiency of a catalytic process. Such phenomena may go unnoticed or may be overlooked, thus preventing the full understanding of the catalytic process which is a prerequisite for its optimization. Based on recent findings both from others and the authors’ laboratory concerning the chemistry of rhodium/diphosphine complexes, some guidelines are provided for the optimal generation of the catalytic active species from a suitable rhodium precursor and the diphosphine of interest; for the choice of the best solvent to prevent aggregation of coordinatively unsaturated metal fragments and sequestration of the active metal through too strong metal–solvent interactions; for preventing catalyst poisoning due to irreversible reaction with the product of the catalytic process or impurities present in the substrate.
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14
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Oonishi Y, Masusaki S, Sakamoto S, Sato Y. Rhodium(I)‐Catalyzed Enantioselective Cyclization of Enynes by Intramolecular Cleavage of the Rh−C Bond by a Tethered Hydroxy Group. Angew Chem Int Ed Engl 2019; 58:8736-8739. [DOI: 10.1002/anie.201902832] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/24/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Yoshihiro Oonishi
- Faculty of Pharmaceutical SciencesHokkaido University Nishi 6, Kita 12, Kita-ku Sapporo 060-0812 Japan
| | - Shuichi Masusaki
- Faculty of Pharmaceutical SciencesHokkaido University Nishi 6, Kita 12, Kita-ku Sapporo 060-0812 Japan
| | - Shunki Sakamoto
- Faculty of Pharmaceutical SciencesHokkaido University Nishi 6, Kita 12, Kita-ku Sapporo 060-0812 Japan
| | - Yoshihiro Sato
- Faculty of Pharmaceutical SciencesHokkaido University Nishi 6, Kita 12, Kita-ku Sapporo 060-0812 Japan
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15
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Oonishi Y, Masusaki S, Sakamoto S, Sato Y. Rhodium(I)‐Catalyzed Enantioselective Cyclization of Enynes by Intramolecular Cleavage of the Rh−C Bond by a Tethered Hydroxy Group. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902832] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yoshihiro Oonishi
- Faculty of Pharmaceutical SciencesHokkaido University Nishi 6, Kita 12, Kita-ku Sapporo 060-0812 Japan
| | - Shuichi Masusaki
- Faculty of Pharmaceutical SciencesHokkaido University Nishi 6, Kita 12, Kita-ku Sapporo 060-0812 Japan
| | - Shunki Sakamoto
- Faculty of Pharmaceutical SciencesHokkaido University Nishi 6, Kita 12, Kita-ku Sapporo 060-0812 Japan
| | - Yoshihiro Sato
- Faculty of Pharmaceutical SciencesHokkaido University Nishi 6, Kita 12, Kita-ku Sapporo 060-0812 Japan
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16
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Gold‐Catalyzed Enantioselective Intramolecular Annulation of Ene‐Yne‐Carbonyls via Benzopyrylium‐Type Intermediates. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801537] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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17
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Thiel I, Horstmann M, Jungk P, Keller S, Fischer F, Drexler HJ, Heller D, Hapke M. Insight into the Activation of In Situ Generated Chiral Rh I Catalysts and Their Application in Cyclotrimerizations. Chemistry 2017; 23:17048-17057. [PMID: 28902959 DOI: 10.1002/chem.201703198] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Indexed: 12/16/2022]
Abstract
We report a detailed study concerning the efficient generation of highly active chiral rhodium complexes of the general structure [Rh(diphosphine)(solvent)2 ]+ as well as their exemplary successful utilization as catalysts for cyclotrimerizations. Such solvent complexes could likewise be prepared from novel ammonia complexes of the type [Rh(diphosphine)(NH3 )2 ]+ . A valuable, feasible approach to generate novel chiral RhI complexes was found by in situ generation from Wilkinson's catalyst [RhCl(PPh3 )3 ] with chiral P,N ligands. The generated catalysts led to moderate to good enantioselectivities and excellent yields in the cyclotrimerizations of triynes, showcasing their usefulness in the synthesis of axially chiral benzene derivatives.
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Affiliation(s)
- Indre Thiel
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock (LIKAT Rostock), Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Moritz Horstmann
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock (LIKAT Rostock), Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Phillip Jungk
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock (LIKAT Rostock), Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Sonja Keller
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock (LIKAT Rostock), Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Fabian Fischer
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock (LIKAT Rostock), Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Hans-Joachim Drexler
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock (LIKAT Rostock), Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Detlef Heller
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock (LIKAT Rostock), Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Marko Hapke
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock (LIKAT Rostock), Albert-Einstein-Straße 29a, 18059, Rostock, Germany.,Johannes Kepler Universität Linz, Institut für Katalyse (INCA), Altenberger Straße 69, 4040, Linz, Austria
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18
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Ueda H, Masutomi K, Shibata Y, Tanaka K. Rhodium-Catalyzed Asymmetric [2 + 2 + 2] Cyclization of 1,6-Enynes with Aliphatic and Aromatic Alkenes. Org Lett 2017; 19:2913-2916. [PMID: 28530409 DOI: 10.1021/acs.orglett.7b01149] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
It has been established that a cationic rhodium(I)/(R)-MeO-BIPHEP complex catalyzes the asymmetric [2 + 2 + 2] cyclization of 1,6-enynes with aliphatic and aromatic alkenes to produce chiral cyclic dienes through β-hydride elimination from rhodacycle intermediates. Thus, obtained chiral cyclic dienes could be converted to chiral spirocompounds without racemization.
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Affiliation(s)
- Hiroki Ueda
- Department of Chemical Science and Engineering, Tokyo Institute of Technology , O-okayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Koji Masutomi
- Department of Chemical Science and Engineering, Tokyo Institute of Technology , O-okayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Yu Shibata
- Department of Chemical Science and Engineering, Tokyo Institute of Technology , O-okayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology , O-okayama, Meguro-ku, Tokyo 152-8550, Japan
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19
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Diao Y, Zuo Z, Wang H, Liu J, Luan X. Palladium(0)-catalyzed [2 + 2 + 1] cyclization of 1,6-enynes with vinyl bromides: a highly diastereoselective synthesis of tetrahydro-1H-cyclopenta[c]furans bearing two quaternary carbon centers. Org Biomol Chem 2017; 15:4601-4608. [PMID: 28509925 DOI: 10.1039/c7ob00768j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A new cascade process has been accomplished for the synthesis of tetrahydro-1H-cyclopenta[c]furans through palladium-catalyzed [2 + 2 + 1] cyclization of 1,6-enynes with vinyl bromides. Notably, the key feature of this transformation is the use of vinyl bromides as the C1 building block. Various functionalized tetrahydro-1H-cyclopenta[c]furans bearing two quaternary carbon centers could be obtained in good yields with excellent diastereoselectivities.
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Affiliation(s)
- Yunxia Diao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127 China.
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