1
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Guo W, Huang J, Ishihara K. Chiral π-Cu(ii)-catalyzed site-, exo/ endo-, and enantioselective dearomative (3 + 2) cycloadditions of isoquinolinium ylides with enamides, dienamides, and a trienamide. Chem Sci 2024; 15:10926-10934. [PMID: 39027307 PMCID: PMC11253176 DOI: 10.1039/d4sc02946a] [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: 05/04/2024] [Accepted: 06/05/2024] [Indexed: 07/20/2024] Open
Abstract
Here, we report a highly effective dearomative (3 + 2) cycloaddition reaction between isoquinolinium ylides and α,β-enamides, α,β-γ,δ-dienamides, or an α,β-γ,δ-ε,ζ-trienamide, which is catalyzed by a chiral π-Cu(ii) complex (1-10 mol%) and proceeds in a site-selective, exo/endo-selective, and enantioselective manner. The (3 + 2) cycloaddition involving the α,β-enamides proceeds with high exo-selectivity and enantioselectivity. This method is applicable to various substrates including α-substituted, α,β-disubstituted, or β,β-disubstituted α,β-enamides, which are compounds with an intrinsically low reactivity. This method provides synthetic access to pyrroloisoquinoline derivatives with up to three chiral carbon centers, including those featuring fluorine and trifluoromethyl groups, as well as quaternary carbon centers. The (3 + 2) cycloaddition involving α,β-γ,δ-dienamides proceeds with high γ,δ-site-selectivity and enantioselectivity, whereby the exo/endo-selectivity depends on the substrates and ligands. Remarkably, the (3 + 2) cycloaddition of δ-phenyl-α,β-γ,δ-dienamide proceeds with high α,β-site-selectivity, exo-selectivity, and enantioselectivity. In a manner similar to the reaction with the α,β-γ,δ-dienamides, α,β-γ,δ-ε,ζ-trienamide furnishes a (3 + 2) cycloadduct with good ε,ζ-site-selectivity, endo-selectivity, and enantioselectivity.
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Affiliation(s)
- Weiwei Guo
- Graduate School of Engineering, Nagoya University B2-3(611), Furo-cho, Chikusa Nagoya 464-8603 Japan
| | - Jianhao Huang
- Graduate School of Engineering, Nagoya University B2-3(611), Furo-cho, Chikusa Nagoya 464-8603 Japan
| | - Kazuaki Ishihara
- Graduate School of Engineering, Nagoya University B2-3(611), Furo-cho, Chikusa Nagoya 464-8603 Japan
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2
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Guo W, Hori M, Ogura Y, Nishimura K, Oki K, Ikai T, Yashima E, Ishihara K. Tandem Isomerization/α,β-Site-Selective and Enantioselective Addition Reactions of N-(3-Butynoyl)-3,5-dimethylpyrazole Induced by Chiral π-Cu(II) Catalysts. J Am Chem Soc 2023; 145:27080-27088. [PMID: 38032102 PMCID: PMC10722507 DOI: 10.1021/jacs.3c10820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/07/2023] [Accepted: 11/08/2023] [Indexed: 12/01/2023]
Abstract
Allenes are important building blocks, and derivatization of products via cycloadditions of allenes could become a powerful strategy for constructing carbocyclic and heterocyclic rings. However, the development of catalytic site-selective and enantioselective cycloaddition reactions of allenes still presents significant challenges. Here, we report chiral π-Cu(II)-complex-catalyzed isomerization of N-(3-butynoyl)-3,5-dimethyl-1H-pyrazole to generate N-allenoylpyrazole in situ and subsequent α,β-site-selective and enantioselective [3 + 2], [4 + 2], or [2 + 2] cycloaddition or conjugate addition reactions. The asymmetric environment created by the intramolecular π-Cu(II) interactions provides the corresponding adducts in moderate to high yield with excellent enantioselectivity. To the best of our knowledge, this is the first successful method for chiral-Lewis-acid-catalyzed tandem isomerization/α,β-site-selective and enantioselective cycloaddition or conjugate addition reactions of latent non-γ-substituted allenoyl derivative.
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Affiliation(s)
- Weiwei Guo
- Graduate
School of Engineering, Nagoya University, B2-3(611) Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Masahiro Hori
- Graduate
School of Engineering, Nagoya University, B2-3(611) Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Yoshihiro Ogura
- Graduate
School of Engineering, Nagoya University, B2-3(611) Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Kazuki Nishimura
- Graduate
School of Engineering, Nagoya University, B2-3(611) Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Kosuke Oki
- Graduate
School of Engineering, Nagoya University, B2-3(611) Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Tomoyuki Ikai
- Graduate
School of Engineering, Nagoya University, B2-3(611) Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Eiji Yashima
- Graduate
School of Engineering, Nagoya University, B2-3(611) Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Kazuaki Ishihara
- Graduate
School of Engineering, Nagoya University, B2-3(611) Furo-cho, Chikusa, Nagoya 464-8603, Japan
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3
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Hsieh CC, Liao PK, Chen CW, Chiang MH, Horng YC. The effect of anions in the synthesis and structure of pyrazolylamidino copper(II) complexes. Dalton Trans 2023; 52:4429-4441. [PMID: 36916977 DOI: 10.1039/d3dt00103b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Six new pyrazolylamidino Cu(II) complexes are synthesized directly from the reactions of Cu(X)2 salts (X = ClO4-, BF4-, or Cl-) and pyrazole (pzH) in nitrile solution (RCN, R = Me or Et) at 298 K via the metal-mediated coupling of RCN with pzH: [Cu(HNC(R)pz)2(X)2] (X = ClO4- or BF4-, R = Me, 1 or 7 and Et, 2 or 8, respectively) and dichloro Cu(II) complexes [Cu2Cl2(μ-Cl)2(HNC(Me)pz)2] (3) and [CuCl2(HNC(Et)pz)] (4). Four more new complexes, [Cu2(μ-Cl)2(HNC(Me)pz)2(pzH)2][X]2 (X = ClO4-, 5 and BF4-, 9) and [Cu2(μ-Cl)2(HNC(Et)pz)2(pzH)2(X)2] (X = ClO4-, 6 and BF4-, 10), are obtained indirectly from the anion substitution reaction with Cl- ions in 1 and 7, and 2 and 8, respectively. All complexes are characterized by EA, FTIR, UV-vis and EPR spectroscopy and X-ray crystallographic analyses. HNC(Et)pz or pzH is unobserved in both the nitrile-exchange reaction of 2 to d6-1 and the anion-substitution reaction of 2 to d6-5 in the CD3CN solution. The 1H NMR results reveal that the pzH-RCN coupling is intramolecular and reversible on a Cu(II) center. The crystal structures of these complexes show diverse supramolecular assemblies through imino NH⋯anion hydrogen bonds and pyrazolylamidino pz-pz (π⋯π) and pz-Cu(II) (π⋯metal) interactions. EPR results suggest weak magnetic couplings between Cu(II) centers in the polynuclear Cu(II) complexes. The yield and rate of the formation of 1 are higher in the reaction of Cu(ClO4)2 with a 4-fold molar excess of pzH compared with a 2-fold excess, indicating that [Cu(pzH)4]2+ is the more active species for pzH-RCN coupling. The highest rate for the formation of 1 is achieved when [Cu(pzH)4(ClO4)2] is used in MeCN solution. Thus, a plausible synthetic path for synthesizing pyrazolylamidino Cu(II) complexes is established. An intermediate species, [Cu(HNC(Me)pz)2(pzH)2][ClO4]2 (1a), is proposed for the synthetic process based on spectroscopic studies and DFT calculations. The reaction of [Cu(pzH)4X2] (X = ClO4-, Cl-, NO3-, or BF4-) in MeCN solution suggests that the lability of coordinated anions upon nitrile substitution affects the rate of the formation of bis-pyrazolylamidino Cu(II) complexes.
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Affiliation(s)
| | - Po-Kuang Liao
- Department of Chemistry, National Changhua University of Education, Changhua 50058, Taiwan.
| | - Chia-Wei Chen
- Department of Chemistry, National Changhua University of Education, Changhua 50058, Taiwan.
| | - Ming-Hsi Chiang
- Institute of Chemistry, Academia Sinica, Taipei 11528, Taiwan.,Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Yih-Chern Horng
- Department of Chemistry, National Changhua University of Education, Changhua 50058, Taiwan.
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4
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Yao L, Takeda K, Ando K, Ishihara K. Enantioselective aromatic Claisen rearrangement of allyl 2-naphthyl ethers catalyzed by π-Cu(ii) complexes. Chem Sci 2023; 14:2441-2446. [PMID: 36873835 PMCID: PMC9977442 DOI: 10.1039/d2sc06771d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 01/19/2023] [Indexed: 01/22/2023] Open
Abstract
The first catalytic enantioselective aromatic Claisen rearrangement of allyl 2-naphthyl ethers using 5-10 mol% of π-copper(ii) complexes is reported. A Cu(OTf)2 complex with an l-α-homoalanine amide ligand gave (S)-products in up to 92% ee. Conversely, a Cu(OSO2C4F9)2 complex with an l-tert-leucine amide ligand gave (R)-products in up to 76% ee. Density-functional-theory (DFT) calculations suggest that these Claisen rearrangements proceed stepwise via tight-ion-pair intermediates, and that (S)- and (R)-products are enantioselectively obtained via the staggered transition states for the cleavage of the C-O bond, which is the rate-determining step.
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Affiliation(s)
- Lu Yao
- Graduate School of Engineering, Nagoya University B2-3(611) Furo-cho, Chikusa Nagoya 464-8603 Japan
| | - Kazuki Takeda
- Graduate School of Engineering, Nagoya University B2-3(611) Furo-cho, Chikusa Nagoya 464-8603 Japan
| | - Kaori Ando
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University Gifu 501-1193 Japan
| | - Kazuaki Ishihara
- Graduate School of Engineering, Nagoya University B2-3(611) Furo-cho, Chikusa Nagoya 464-8603 Japan
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5
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Nishimura K, Ogura Y, Takeda K, Guo W, Ishihara K. Chiral π-Cu(II) Catalysts for the Enantioselective α-Amination of N-Acyl-3,5-dimethylpyrazoles. Org Lett 2022; 24:7685-7689. [PMID: 36215133 DOI: 10.1021/acs.orglett.2c03249] [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
We report the highly enantioselective α-amination of N-acyl-3,5-dimethylpyrazoles with dialkyl azodicarboxylates, catalyzed by in situ generated π-Cu(II) complexes that consist of Cu(OTf)2 and N-(5H-dibenzo[a,d][7]annulen-5-yl)-l-alanine-derived amides, to give the corresponding products as d-α-amino acid derivatives (up to >99% yield and 99% ee). The site-selectivity and enantioselectivity can be satisfactorily explained by the coordination of dialkyl azodicarboxylate with π-Cu(II) complex. The synthetic potential of this one-pot transformation to the α-amino ester is also described.
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Affiliation(s)
- Kazuki Nishimura
- Graduate School of Engineering, Nagoya University, Furo-cho, Nagoya464-8603, Japan
| | - Yoshihiro Ogura
- Graduate School of Engineering, Nagoya University, Furo-cho, Nagoya464-8603, Japan
| | - Kazuki Takeda
- Graduate School of Engineering, Nagoya University, Furo-cho, Nagoya464-8603, Japan
| | - Weiwei Guo
- Graduate School of Engineering, Nagoya University, Furo-cho, Nagoya464-8603, Japan
| | - Kazuaki Ishihara
- Graduate School of Engineering, Nagoya University, Furo-cho, Nagoya464-8603, Japan
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6
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“Stacked-arene”-type organocatalysts: utilization of π-π interaction as an electron tuning tool. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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7
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Wang M, Liu X, Wang L, Lu H, Gao H. Cooperative Gold/Zinc‐Catalyzed Cascade Approach to Tryptophan Derivatives from N‐arylhydroxylamines and Alkynes. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Min Wang
- Shandong University School of Chemistry and Chemical Engineering 27 South Shanda Road 250100 Ji'nan CHINA
| | - Xiao Liu
- Shandong University School of Chemistry and Chemical Engineering 27 South Shanda Road 250100 Ji'nan CHINA
| | - Liying Wang
- Shandong University School of Chemistry and Chemical Engineering 27 South Shanda Road 250100 Ji'nan CHINA
| | - Haifeng Lu
- Shandong University School of chemistry and chemical engineering CHINA
| | - Hongyin Gao
- Shandong University School of Chemistry and Chemical Engineering 27 South Shanda Road 250100 Ji'nan CHINA
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8
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Nishimura K, Wang Y, Ogura Y, Kumagai J, Ishihara K. A π–Cu(II)−π Complex as an Extremely Active Catalyst for Enantioselective α-Halogenation of N-Acyl-3,5-dimethylpyrazoles. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05500] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Kazuki Nishimura
- Graduate School of Engineering, Nagoya University, Furo-cho, Nagoya 464-8603, Japan
| | - Yanzhao Wang
- Graduate School of Engineering, Nagoya University, Furo-cho, Nagoya 464-8603, Japan
| | - Yoshihiro Ogura
- Graduate School of Engineering, Nagoya University, Furo-cho, Nagoya 464-8603, Japan
| | - Jun Kumagai
- Graduate School of Engineering, Nagoya University, Furo-cho, Nagoya 464-8603, Japan
| | - Kazuaki Ishihara
- Graduate School of Engineering, Nagoya University, Furo-cho, Nagoya 464-8603, Japan
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9
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Wang W, Song JR, Li ZY, Zhong T, Chi Q, Ren H, Pan WD. Copper-catalyzed aerobic oxidative radical alkoxycyclization of tryptamines to access 3-alkoxypyrroloindolines. RSC Adv 2021; 11:18080-18083. [PMID: 35480191 PMCID: PMC9033248 DOI: 10.1039/d1ra02679h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 05/12/2021] [Indexed: 12/15/2022] Open
Abstract
We report a copper-catalyzed alkoxycyclization of tryptamine derivatives with O2 as the sole oxidant, leading to a variety of C3a-alkoxypyrroloindolines in good yields with high diastereoselectivities. This reaction involves an interesting double catalytic cycle in which copper-catalyzed carboamination cyclization is favored to form the C-3 radical pyrrolidinoindoline intermediate, then a copper-catalytic radical alkoxylation reaction proceeds smoothly.
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Affiliation(s)
- Wei Wang
- School of Pharmaceutical Sciences, Guizhou University Huaxi Avenue South Guiyang 550025 P. R. China
| | - Jun-Rong Song
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences Guiyang 550014 China
| | - Zhi-Yao Li
- School of Pharmaceutical Sciences, Guizhou University Huaxi Avenue South Guiyang 550025 P. R. China
| | - Ting Zhong
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences Guiyang 550014 China
| | - Qin Chi
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences Guiyang 550014 China
| | - Hai Ren
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences Guiyang 550014 China
| | - Wei-Dong Pan
- School of Pharmaceutical Sciences, Guizhou University Huaxi Avenue South Guiyang 550025 P. R. China .,State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences Guiyang 550014 China
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10
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Husain A, Rani P, Nar KK, Singh AP, Kumar R, Bhasin KK, Kumar G. A tryptophan-based copper(ii) coordination polymer: catalytic activity towards Suzuki–Miyaura cross-coupling reactions. CrystEngComm 2021. [DOI: 10.1039/d1ce01282g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
An unusual tryptophan coordination mode with copper(ii) wherein l-tryp is coordinated through the carboxylate and amine groups. A heterogeneous catalyst for the Suzuki cross-coupling reaction with ∼98% yield under normal reaction conditions.
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Affiliation(s)
- Ahmad Husain
- Department of Chemistry, DAV University, Jalandhar-144012, Punjab, India
| | - Pooja Rani
- Department of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University Chandigarh, Chandigarh, India
| | - Kuldeep Kaur Nar
- Department of Chemistry, DAV University, Jalandhar-144012, Punjab, India
| | - Amit Pratap Singh
- Department of Applied Sciences, National Institute of Technology, New Delhi-110040, India
| | - Rakesh Kumar
- Department of Chemistry, MCM DAV College, Kangra-176001, Himachal Pradesh, India
| | - K. K. Bhasin
- Department of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University Chandigarh, Chandigarh, India
| | - Girijesh Kumar
- Department of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University Chandigarh, Chandigarh, India
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11
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Ishihara K, Nishimura K, Yamakawa K. Enantio- and Site-Selective α-Fluorination of N-Acyl 3,5-Dimethylpyrazoles Catalyzed by Chiral π-Cu II Complexes. Angew Chem Int Ed Engl 2020; 59:17641-17647. [PMID: 32633892 DOI: 10.1002/anie.202007403] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Indexed: 11/11/2022]
Abstract
Catalytic enantioselective α-fluorination reactions of carbonyl compounds are among the most powerful and efficient synthetic methods for constructing optically active α-fluorinated carbonyl compounds. Nevertheless, α-fluorination of α-nonbranched carboxylic acid derivatives is still a big challenge because of relatively high pKa values of their α-hydrogen atoms and difficulty of subsequent synthetic transformation without epimerization. Herein we show that chiral copper(II) complexes of 3-(2-naphthyl)-l-alanine-derived amides are highly effective catalysts for the enantio- and site-selective α-fluorination of N-(α-arylacetyl) and N-(α-alkylacetyl) 3,5-dimethylpyrazoles. The substrate scope of the transformation is very broad (25 examples including a quaternary α-fluorinated α-amino acid derivative). α-Fluorinated products were converted into the corresponding esters, secondary amides, tertiary amides, ketones, and alcohols with almost no epimerization in high yield.
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Affiliation(s)
- Kazuaki Ishihara
- Graduate School of Engineering, Nagoya University, B2-3(611), Furo-cho, Chikusa, Nagoya, 464-8603, Japan
| | - Kazuki Nishimura
- Graduate School of Engineering, Nagoya University, B2-3(611), Furo-cho, Chikusa, Nagoya, 464-8603, Japan
| | - Katsuya Yamakawa
- Graduate School of Engineering, Nagoya University, B2-3(611), Furo-cho, Chikusa, Nagoya, 464-8603, Japan
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12
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Ishihara K, Nishimura K, Yamakawa K. Enantio‐ and Site‐Selective α‐Fluorination of
N
‐Acyl 3,5‐Dimethylpyrazoles Catalyzed by Chiral π–Cu
II
Complexes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007403] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kazuaki Ishihara
- Graduate School of Engineering Nagoya University B2-3(611), Furo-cho Chikusa Nagoya 464-8603 Japan
| | - Kazuki Nishimura
- Graduate School of Engineering Nagoya University B2-3(611), Furo-cho Chikusa Nagoya 464-8603 Japan
| | - Katsuya Yamakawa
- Graduate School of Engineering Nagoya University B2-3(611), Furo-cho Chikusa Nagoya 464-8603 Japan
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13
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Zhao ZX, Hu ZL, Zhang XT, Liu QX. A new tridentate fluorescent-colorimetric chemosensor for copper(II) ion. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130675] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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14
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Bagwill CS, Wireduaah S, Cusworth B, Korba J, Kirkpatrick CC, Lewis M, Stalcup AM. Use of HPLC retention to investigate new P descriptors designed to represent ion-π interactions. J LIQ CHROMATOGR R T 2019. [DOI: 10.1080/10826076.2019.1667822] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
| | | | - Brian Cusworth
- School of Medicine, Washington University, St. Louis, MO, USA
| | | | | | - Michael Lewis
- Department of Chemistry, Saint Louis University, St. Louis, MO, USA
| | - Apryll M. Stalcup
- School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
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15
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Yao L, Ishihara K. Enantioselective [1,3] O-to-C rearrangement: dearomatization of alkyl 2-allyloxy/benzyloxy-1/3-naphthoates catalyzed by a chiral π-Cu(ii) complex. Chem Sci 2019; 10:2259-2263. [PMID: 30881650 PMCID: PMC6385897 DOI: 10.1039/c8sc05601c] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Accepted: 01/10/2019] [Indexed: 11/29/2022] Open
Abstract
An unprecedented catalytic asymmetric [1,3] O-to-C rearrangement of alkyl 2-allyloxy/benzyloxy-1/3-naphthoates was realized under the catalysis of a chiral π-Cu(ii) complex (1-10 mol%). This dearomatization strategy provides facile access to highly functionalized β-naphthalenone derivatives bearing an all-carbon quaternary stereogenic center in high yield with excellent enantioselectivity. The π-cation interaction between the aromatic substituent of the ligand and the Cu(ii) center was proved by X-ray diffraction analysis and shown to be crucial for enantioselective control. Further preliminary mechanistic studies suggest that this intramolecular reaction proceeds through a contact ion pair intermediate.
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Affiliation(s)
- Lu Yao
- Graduate School of Engineering , Nagoya University , B2-3(611) Furo-cho, Chikusa , Nagoya 464-8603 , Japan .
| | - Kazuaki Ishihara
- Graduate School of Engineering , Nagoya University , B2-3(611) Furo-cho, Chikusa , Nagoya 464-8603 , Japan .
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16
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Xiong Q, Lin L, Zhao X, Lang J, Liu X, Feng X. Zinc(II)-Catalyzed Asymmetric Diels-Alder Reaction of ( E)-1-Phenyl Dienes with β,γ-Unsaturated α-Ketoesters. J Org Chem 2018; 83:12527-12534. [PMID: 30222927 DOI: 10.1021/acs.joc.8b01771] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A highly regio-, diastereo-, and enantioselective Diels-Alder reaction of β,γ-unsaturated α-ketoesters with ( E)-1-phenyl dienes has been accomplished by using a stable and easily available chiral N,N'-dioxide/zinc(II) complex as catalyst. Only one isomer of the corresponding cyclohexenes with three chiral centers was obtained in good to excellent yields with excellent ee values under mild reaction conditions. The configurations of the product and chiral N,N'-dioxide/zinc(II) catalyst were identified by X-ray diffraction analysis. In addition, a possible catalytic model was proposed to explain the origin of the asymmetric induction.
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Affiliation(s)
- Qian Xiong
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , People's Republic of China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , People's Republic of China
| | - Xiaohu Zhao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , People's Republic of China
| | - Jiawen Lang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , People's Republic of China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , People's Republic of China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , People's Republic of China
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17
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Sun YL, Wei Y, Shi M. Tunable regiodivergent phosphine-catalyzed [3 + 2] cycloaddition of alkynones and trifluoroacetyl phenylamides. Org Chem Front 2017. [DOI: 10.1039/c7qo00512a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The regiodivergent phosphine-catalyzed [3 + 2] cycloaddition of 2-(2,2,2-trifluoroacetyl)phenylamides and alkynones have been achieved through adjusting the acidities of substrates, changing reaction temperature and addition of protic additive H2O. The detailed mechanism was systematically studied.
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Affiliation(s)
- Yao-Liang Sun
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry
- University of Chinese Academy of Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
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18
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Kumar SN, Yu IF, Chein RJ. Oxathiaborolium: A Type of Chiral Lewis Acid Catalyst and Its Application in Catalytic and Highly Enantioselective Diels–Alder Reactions. Org Lett 2016; 19:22-25. [DOI: 10.1021/acs.orglett.6b03147] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Isaac Furay Yu
- Department
of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Rong-Jie Chein
- Institute
of Chemistry, Academia Sinica, Nankang, Taipei 11529, Taiwan
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19
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Kennedy CR, Lin S, Jacobsen EN. The Cation-π Interaction in Small-Molecule Catalysis. Angew Chem Int Ed Engl 2016; 55:12596-624. [PMID: 27329991 PMCID: PMC5096794 DOI: 10.1002/anie.201600547] [Citation(s) in RCA: 174] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Indexed: 11/11/2022]
Abstract
Catalysis by small molecules (≤1000 Da, 10(-9) m) that are capable of binding and activating substrates through attractive, noncovalent interactions has emerged as an important approach in organic and organometallic chemistry. While the canonical noncovalent interactions, including hydrogen bonding, ion pairing, and π stacking, have become mainstays of catalyst design, the cation-π interaction has been comparatively underutilized in this context since its discovery in the 1980s. However, like a hydrogen bond, the cation-π interaction exhibits a typical binding affinity of several kcal mol(-1) with substantial directionality. These properties render it attractive as a design element for the development of small-molecule catalysts, and in recent years, the catalysis community has begun to take advantage of these features, drawing inspiration from pioneering research in molecular recognition and structural biology. This Review surveys the burgeoning application of the cation-π interaction in catalysis.
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Affiliation(s)
- C Rose Kennedy
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford St, Cambridge, MA, 02138, USA
| | - Song Lin
- Department of Chemistry, University of California, Berkeley, 535 Latimer Hall, Berkeley, CA, 94720, USA
| | - Eric N Jacobsen
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford St, Cambridge, MA, 02138, USA.
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20
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Kennedy CR, Lin S, Jacobsen EN. Die Kation-π-Wechselwirkung in der Katalyse mit niedermolekularen Verbindungen. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600547] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- C. Rose Kennedy
- Department of Chemistry and Chemical Biology; Harvard University; 12 Oxford St Cambridge MA 02138 USA
| | - Song Lin
- Department of Chemistry; University of California, Berkeley; 535 Latimer Hall Berkeley CA 94720 USA
| | - Eric N. Jacobsen
- Department of Chemistry and Chemical Biology; Harvard University; 12 Oxford St Cambridge MA 02138 USA
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21
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Zhao X, Mei H, Xiong Q, Fu K, Lin L, Liu X, Feng X. Highly enantioselective construction of carbazole derivatives via [4+2] cycloaddition of silyloxyvinylindoles and β,γ-unsaturated α-ketoesters. Chem Commun (Camb) 2016; 52:10692-5. [DOI: 10.1039/c6cc05328a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly enantioselective [4+2] cycloaddition between silyloxyvinylindoles and β,γ-unsaturated α-ketoesters was realized by an avaliable chiral N,N′-dioxide/yttrium triflate complex.
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Affiliation(s)
- Xiaohu Zhao
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Hongjiang Mei
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Qian Xiong
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Kai Fu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
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22
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Lu Y, Zhou Y, Lin L, Zheng H, Fu K, Liu X, Feng X. N,N′-Dioxide/nickel(ii)-catalyzed asymmetric Diels–Alder reaction of cyclopentadiene with 2,3-dioxopyrrolidines and 2-alkenoyl pyridines. Chem Commun (Camb) 2016; 52:8255-8. [DOI: 10.1039/c6cc03346f] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A chiral N,N′-dioxide/Ni(OTf)2 complex-catalyzed asymmetric Diels–Alder reaction of cyclopentadiene with 2,3-dioxopyrrolidines and 2-alkenoyl pyridines has been achieved, leading to the corresponding chiral bridged compounds in up to 97% yield, 95 : 5 dr and 97% ee.
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Affiliation(s)
- Yan Lu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Yuhang Zhou
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Haifeng Zheng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Kai Fu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
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23
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Maher NJ, Diao H, O'Sullivan J, Fadda E, Heaney F, McGinley J. Lower rim isoxazole-calix[4]arene derivatives as fluorescence sensors for copper(II) ions. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.10.045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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24
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Desimoni G, Faita G, Quadrelli P. Enantioselective Catalytic Reactions with N-Acyliden Penta-atomic Aza-heterocycles. Heterocycles as Masked Bricks To Build Chiral Scaffolds. Chem Rev 2015; 115:9922-80. [DOI: 10.1021/acs.chemrev.5b00097] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Giovanni Desimoni
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
| | - Giuseppe Faita
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
| | - Paolo Quadrelli
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
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25
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Kang T, Wang Z, Lin L, Liao Y, Zhou Y, Liu X, Feng X. N,N′-Dioxide/Zinc Bis(trifluoromethylsulfonyl)imide Complex Catalyzed Enantioselective Diels-Alder Reaction of Cyclopentadiene with Alkynones. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500069] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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26
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Tian T, Li L, Xue J, Zhang J, Li Y. Enantioselective Syntheses of Spiroketals via a Tandem Reaction of Cu(I)-Catalyzed Cycloetherification and Hydrogen-Bond-Induced [4 + 2] Cyclization. J Org Chem 2015; 80:4189-200. [DOI: 10.1021/acs.joc.5b00384] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tian Tian
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu P. R. China
| | - Liqi Li
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu P. R. China
| | - Jijun Xue
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu P. R. China
| | - Jie Zhang
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu P. R. China
| | - Ying Li
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu P. R. China
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27
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Fang Z, Liu Y, Barry BD, Liao P, Bi X. Formation of Benzo[f]-1-indanone Frameworks by Regulable Intramolecular Annulations of gem-Dialkylthio Trienynes. Org Lett 2015; 17:782-5. [DOI: 10.1021/ol5034332] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhongxue Fang
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Ying Liu
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Badru-Deen Barry
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Peiqiu Liao
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xihe Bi
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
- State
Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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28
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De Marco R, Cavina L, Greco A, Gentilucci L. Easy preparation of dehydroalanine building blocks equipped with oxazolidin-2-one chiral auxiliaries, and applications to the stereoselective synthesis of substituted tryptophans. Amino Acids 2014; 46:2823-39. [DOI: 10.1007/s00726-014-1839-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 09/09/2014] [Indexed: 12/23/2022]
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29
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Hori M, Sakakura A, Ishihara K. Enantioselective 1,3-dipolar cycloaddition of azomethine imines with propioloylpyrazoles induced by chiral π-cation catalysts. J Am Chem Soc 2014; 136:13198-201. [PMID: 25197958 DOI: 10.1021/ja508441t] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
We developed 1,3-dipolar cycloadditions of azomethine imines with propioloylpyrazoles catalyzed by a chiral copper(II) complex of 3-(2-naphthyl)-l-alanine amide. The asymmetric environment created by intramolecular π-cation interaction and the N-alkyl group of the chiral ligand gives the corresponding adducts in high yields with excellent enantioselectivity. This is the first successful method for the catalytic enantioselective 1,3-dipolar cycloaddition of azomethine imines with internal alkyne derivatives to give fully substituted pyrazolines.
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Affiliation(s)
- Masahiro Hori
- Graduate School of Engineering, Nagoya University , Furo-cho, Chikusa, Nagoya 464-8603, Japan
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30
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Deng X, Liang K, Tong X, Ding M, Li D, Xia C. Copper-Catalyzed Radical Cyclization To Access 3-Hydroxypyrroloindoline: Biomimetic Synthesis of Protubonine A. Org Lett 2014; 16:3276-9. [PMID: 24922604 DOI: 10.1021/ol501287x] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Xu Deng
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China
| | - Kangjiang Liang
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaogang Tong
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ming Ding
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dashan Li
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chengfeng Xia
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China
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31
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Zhang HR, Xue JJ, Chen R, Tang Y, Li Y. A bifunctional rosin-derived thiourea catalyzed asymmetric tandem reaction and its new mechanism. CHINESE CHEM LETT 2014. [DOI: 10.1016/j.cclet.2013.12.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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32
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Matsumura Y, Suzuki T, Sakakura A, Ishihara K. Catalytic Enantioselective Inverse Electron Demand Hetero-Diels-Alder Reaction with Allylsilanes. Angew Chem Int Ed Engl 2014; 53:6131-4. [DOI: 10.1002/anie.201402934] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2014] [Revised: 03/28/2014] [Indexed: 11/09/2022]
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33
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Matsumura Y, Suzuki T, Sakakura A, Ishihara K. Catalytic Enantioselective Inverse Electron Demand Hetero-Diels-Alder Reaction with Allylsilanes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201402934] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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34
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Li N, Chen WB, Guan YF, OuYang ZJ, Dong W. Chlorine anion–π and π−–π− interactions in two tetrazolyl derivative based Cu2+ complexes and quantum chemical calculations. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2013.09.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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35
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Wireduaah S, Parker TM, Bagwill C, Kirkpatrick CC, Lewis M. Predicting the cation–π binding of substituted benzenes: energy decomposition calculations and the development of a cation–π substituent constant. RSC Adv 2014. [DOI: 10.1039/c4ra08638d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This work proposes a new substituent constant,Π+, to describe cation–π binding using computational methods at the MP2(full)/6-311++G** level of theory with Symmetry Adapted Perturbation Theory (SAPT) calculations on selected cation–π complexes.
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Affiliation(s)
| | | | | | | | - Michael Lewis
- Department of Chemistry
- Saint Louis University
- St. Louis, USA
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36
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Yao J, Liu X, He P, Zhu Y, Lian X, Lin L, Feng X. Chiral-Zn(NTf2)2-Complex-Catalyzed Diastereo- and Enantioselective Direct Conjugate Addition of Arylacetonitriles to Alkylidene Malonates. Chemistry 2013; 19:16424-30. [DOI: 10.1002/chem.201302122] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Revised: 08/20/2013] [Indexed: 11/06/2022]
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37
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Jiang X, Liu L, Zhang P, Zhong Y, Wang R. Catalytic Asymmetric β,γ Activation of α,β-Unsaturated γ-Butyrolactams: Direct Approach to β,γ-Functionalized Dihydropyranopyrrolidin-2-ones. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302622] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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38
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Jiang X, Liu L, Zhang P, Zhong Y, Wang R. Catalytic asymmetric β,γ activation of α,β-unsaturated γ-butyrolactams: direct approach to β,γ-functionalized dihydropyranopyrrolidin-2-ones. Angew Chem Int Ed Engl 2013; 52:11329-33. [PMID: 23929785 DOI: 10.1002/anie.201302622] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Indexed: 11/05/2022]
Abstract
Skeleton in the closet: The title reaction enables the development of the first catalytic β,γ-selective Diels-Alder [4+2] annulation of α,β-unsaturated γ-butyrolactams (see scheme; Boc=tert-butoxycarbonyl, Ts=4-toluenesulfonyl). This process provides a direct method for the enantioselective construction of bi- or tricyclic dihydropyranopyrrolidin-2-one skeletons in only one step.
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Affiliation(s)
- Xianxing Jiang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Institute of Biochemistry and Molecular Biology, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000 (China).
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39
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Papadakis R, Rivière E, Giorgi M, Jamet H, Rousselot-Pailley P, Réglier M, Simaan AJ, Tron T. Structural and Magnetic Characterization of a Tetranuclear Copper(II) Cubane Stabilized by Intramolecular Metal Cation−π Interactions. Inorg Chem 2013; 52:5824-30. [DOI: 10.1021/ic3027545] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Eric Rivière
- Université Paris-Sud, CNRS, ICMMO UMR 8182, 91405 Orsay, France
| | - Michel Giorgi
- Aix Marseille Université, CNRS, Spectropole FR1739, 13397 Marseille, France
| | - Hélène Jamet
- Université Joseph Fourier—Grenoble 1, CNRS, DCM UMR 5250, 38041 Grenoble, France
| | | | - Marius Réglier
- Aix Marseille Université, CNRS, ISM2 UMR 7313, 13397 Marseille, France
| | - A. Jalila Simaan
- Aix Marseille Université, CNRS, ISM2 UMR 7313, 13397 Marseille, France
| | - Thierry Tron
- Aix Marseille Université, CNRS, ISM2 UMR 7313, 13397 Marseille, France
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40
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Jiang X, Wang R. Recent developments in catalytic asymmetric inverse-electron-demand Diels-Alder reaction. Chem Rev 2013; 113:5515-46. [PMID: 23521039 DOI: 10.1021/cr300436a] [Citation(s) in RCA: 430] [Impact Index Per Article: 39.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xianxing Jiang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
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41
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Jiang X, Zhu H, Shi X, Zhong Y, Li Y, Wang R. Heterogeneous Bifunctional Catalytic, Chemo-, Regio- and Enantioselective Cascade Inverse Electron Demand Diels-Alder Reaction. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201201038] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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42
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Yang M, OuYang ZJ, Chen WB, Zhou RF, Li N, Dong W. Structures of six photochromic 3d complexes containing 3,3′-azobis-1,2,4-triazole ligand. CrystEngComm 2013. [DOI: 10.1039/c3ce40736e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Mahadevi AS, Sastry GN. Cation-π interaction: its role and relevance in chemistry, biology, and material science. Chem Rev 2012; 113:2100-38. [PMID: 23145968 DOI: 10.1021/cr300222d] [Citation(s) in RCA: 728] [Impact Index Per Article: 60.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- A Subha Mahadevi
- Molecular Modeling Group, CSIR-Indian Institute of Chemical Technology Tarnaka, Hyderabad 500 607, Andhra Pradesh, India
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44
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Jiang X, Wang L, Kai M, Zhu L, Yao X, Wang R. Asymmetric Inverse-Electron-Demand Hetero-Diels-Alder Reaction for the Construction of Bicyclic Skeletons with Multiple Stereocenters by Using a Bifunctional Organocatalytic Strategy: An Efficient Approach to Chiral Macrolides. Chemistry 2012; 18:11465-73. [DOI: 10.1002/chem.201201102] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2012] [Revised: 06/07/2012] [Indexed: 11/06/2022]
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45
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Reetz MT. Artificial Metalloenzymes as Catalysts in Stereoselective Diels-Alder Reactions. CHEM REC 2012; 12:391-406. [DOI: 10.1002/tcr.201100043] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Indexed: 11/05/2022]
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46
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Kieffer ME, Repka LM, Reisman SE. Enantioselective synthesis of tryptophan derivatives by a tandem Friedel-Crafts conjugate addition/asymmetric protonation reaction. J Am Chem Soc 2012; 134:5131-7. [PMID: 22390403 PMCID: PMC3310256 DOI: 10.1021/ja209390d] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The tandem Friedel-Crafts conjugate addition/asymmetric protonation reaction between 2-substituted indoles and methyl 2-acetamidoacrylate is reported. The reaction is catalyzed by (R)-3,3'-dibromo-BINOL in the presence of stoichiometric SnCl(4), and is the first example of a tandem conjugate addition/asymmetric protonation reaction using a BINOL·SnCl(4) complex as the catalyst. A range of indoles furnished synthetic tryptophan derivatives in good yields and high levels of enantioselectivity, even on a preparative scale. The convergent nature of this transformation should lend itself to the preparation of unnatural tryptophan derivatives for use in a broad array of synthetic and biological applications.
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Affiliation(s)
- Madeleine E. Kieffer
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125
| | - Lindsay M. Repka
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125
| | - Sarah E. Reisman
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125
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Jiang X, Shi X, Wang S, Sun T, Cao Y, Wang R. Bifunctional Organocatalytic Strategy for Inverse-Electron-Demand Diels-Alder Reactions: Highly Efficient In Situ Substrate Generation and Activation to Construct Azaspirocyclic Skeletons. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201107716] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Jiang X, Shi X, Wang S, Sun T, Cao Y, Wang R. Bifunctional organocatalytic strategy for inverse-electron-demand Diels-Alder reactions: highly efficient in situ substrate generation and activation to construct azaspirocyclic skeletons. Angew Chem Int Ed Engl 2012; 51:2084-7. [PMID: 22271371 DOI: 10.1002/anie.201107716] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2011] [Indexed: 11/08/2022]
Affiliation(s)
- Xianxing Jiang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
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Lin JM, Qiu YX, Chen WB, Yang M, Zhou AJ, Dong W, Tian CE. Unusual π−–π− stacking interactions between 5,5′-azotetrazolate(AT) anions in six AT based 3d metal photochromic complexes. CrystEngComm 2012. [DOI: 10.1039/c2ce06606h] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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