51
|
Gao TP, Liu D, Lin JB, Hu XQ, Wang ZY, Xu PF. Direct construction of chiral quaternary dihydropyranones through highly enantioselective organocatalytic hetero-Diels–Alder reactions of olefinic azlactones. Org Chem Front 2016. [DOI: 10.1039/c6qo00018e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first organocatalytic hetero-Diels–Alder reaction of an in situ generated diene with α-keto esters was reported for the construction of chiral dihydropyranones.
Collapse
Affiliation(s)
- Tai-Ping Gao
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Dan Liu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Jun-Bing Lin
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xiu-Qin Hu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Zhu-Yin Wang
- College of Mechanics and Materials
- Hohai University
- Nanjing 210098
- P. R. China
| | - Peng-Fei Xu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| |
Collapse
|
52
|
Hejmanowska J, Albrecht A, Pięta J, Albrecht Ł. Asymmetric Synthesis of 3,4-Dihydrocoumarins Bearing an α,α-Disubstituted Amino Acid Moiety. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500598] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
53
|
Qi J, Duan XY, Cao LL, Wang WY. N-Heterocyclic-Carbene-Catalyzed Stereoselective Annulations: An Efficient Strategy for the Synthesis of Chromeno[4,3-b]pyrrolidine Derivatives. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500266] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Jing Qi
- College of Chemistry and Environment Science; Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education; Hebei University; Baoding 071002 P. R. China
| | - Xiao-Yong Duan
- College of Chemistry and Environment Science; Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education; Hebei University; Baoding 071002 P. R. China
| | - Li-Li Cao
- College of Chemistry and Environment Science; Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education; Hebei University; Baoding 071002 P. R. China
| | - Wen-Ying Wang
- College of Chemistry and Environment Science; Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education; Hebei University; Baoding 071002 P. R. China
| |
Collapse
|
54
|
Wang Y, Lu H, Xu PF. Asymmetric catalytic cascade reactions for constructing diverse scaffolds and complex molecules. Acc Chem Res 2015; 48:1832-44. [PMID: 26099943 DOI: 10.1021/acs.accounts.5b00217] [Citation(s) in RCA: 261] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
With the increasing concerns about chemical pollution and sustainability of resources, among the significant challenges facing synthetic chemists are the development and application of elegant and efficient methods that enable the concise synthesis of natural products, drugs, and related compounds in a step-, atom- and redox-economic manner. One of the most effective ways to reach this goal is to implement reaction cascades that allow multiple bond-forming events to occur in a single vessel. This Account documents our progress on the rational design and strategic application of asymmetric catalytic cascade reactions in constructing diverse scaffolds and synthesizing complex chiral molecules. Our research is aimed at developing robust cascade reactions for the systematic synthesis of a range of interesting molecules that contain structural motifs prevalent in natural products, pharmaceuticals, and biological probes. The strategies employed to achieve this goal can be classified into three categories: bifunctional base/Brønsted acid catalysis, covalent aminocatalysis/N-heterocyclic carbene catalysis, and asymmetric organocatalytic relay cascades. By the use of rationally designed substrates with properly reactive sites, chiral oxindole, chroman, tetrahydroquinoline, tetrahydrothiophene, and cyclohexane scaffolds were successfully assembled under bifunctional base/Brønsted acid catalysis from simple and readily available substances such as imines and nitroolefins. We found that some of these reactions are highly efficient since catalyst loadings as low as 1 mol % can promote the multistep sequences affording complex architectures with high stereoselectivities and yields. Furthermore, one of the bifunctional base/Brønsted acid-catalyzed cascade reactions for the synthesis of chiral cyclohexanes has been used as a key step in the construction of the tetracyclic core of lycorine-type alkaloids and the formal synthesis of α-lycorane. Guided by the principles of covalent aminocatalysis and N-heterocyclic carbene catalysis, we synthesized chiral piperidine, indole, and cyclobutane derivatives. The synthesis of chiral cyclobutanes and pyrroloindolones showed unprecedented reactivity of substrates and catalysts. The development of the strategy of asymmetric organocatalytic relay cascades has provided a useful tool for the controlled synthesis of specific diastereomers in complex molecules. This Account gives a panoramic view and the logic of our research on the design, development, and applications of asymmetric catalytic cascade reactions that will potentially provide useful insights into exploring new reactions.
Collapse
Affiliation(s)
- Yao Wang
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Hong Lu
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Peng-Fei Xu
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| |
Collapse
|
55
|
Zhang S, Luo YC, Hu XQ, Wang ZY, Liang YM, Xu PF. Enantioselective Amine-Catalyzed [4 + 2] Annulations of Allene Ketones and 2,3-Dioxopyrrolidine Derivatives: Synthesis of 4H-Pyran Derivatives. J Org Chem 2015; 80:7288-94. [DOI: 10.1021/acs.joc.5b00961] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Shuang Zhang
- State
Key Laboratory of Applied Organic Chemistry, and College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yong-Chun Luo
- State
Key Laboratory of Applied Organic Chemistry, and College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiu-Qin Hu
- State
Key Laboratory of Applied Organic Chemistry, and College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Zhu-Yin Wang
- College
of Mechanics and Materials, Hohai University, Nanjing 210098, P. R. China
| | - Yong-Min Liang
- State
Key Laboratory of Applied Organic Chemistry, and College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Peng-Fei Xu
- State
Key Laboratory of Applied Organic Chemistry, and College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| |
Collapse
|
56
|
Zhao S, Zhao YY, Lin JB, Xie T, Liang YM, Xu PF. Organocatalyzed Asymmetric Vinylogous Allylic–Allylic Alkylation of Morita–Baylis–Hillman Carbonates with Olefinic Azlactones: Facile Access to Chiral Multifunctional α-Amino Acid Derivatives. Org Lett 2015; 17:3206-9. [DOI: 10.1021/acs.orglett.5b01066] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Shuai Zhao
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yuan-Yuan Zhao
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jun-Bing Lin
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Ting Xie
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yong-Min Liang
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Peng-Fei Xu
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| |
Collapse
|
57
|
Gao TP, Lin JB, Hu XQ, Xu PF. A catalytic asymmetric hetero-Diels-Alder reaction of olefinic azlactones and isatins: facile access to chiral spirooxindole dihydropyranones. Chem Commun (Camb) 2015; 50:8934-6. [PMID: 24976540 DOI: 10.1039/c4cc03896g] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A catalytic asymmetric hetero-Diels-Alder (HDA) reaction has been achieved through hydrogen-bond directed γ-addition of olefinic azlactones to isatins. This methodology provides an efficient access to spirooxindole dihydropyranones in moderate to good yields and with excellent enantioselectivities.
Collapse
Affiliation(s)
- Tai-Ping Gao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China.
| | | | | | | |
Collapse
|
58
|
Dai L, Xu D, Tang LW, Zhou ZM. A CuII-N,P Oxazolinylferrocene Ligand Complex for the Asymmetric [3+2] 1,3-Dipolar Cycloaddition of Azomethine Ylide with Malonates. ChemCatChem 2015. [DOI: 10.1002/cctc.201403048] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
59
|
|
60
|
Lin JB, Xu SM, Xie JK, Li HY, Xu PF. An organocatalytic Michael-cyclization cascade of 4-oxa-α,β-unsaturated carboxylic acids with aldehydes: facile synthesis of chiral γ-lactols and trisubstituted γ-lactones. Chem Commun (Camb) 2015; 51:3596-9. [DOI: 10.1039/c4cc09686j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An organocatalytic Michael-cyclization cascade of 4-oxa-α,β-unsaturated carboxylic acids with aldehydes has been developed, enabling highly enantioselective synthesis of γ-lactols, trisubstituted γ-lactones and γ-lactams.
Collapse
Affiliation(s)
- Jun-Bing Lin
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Shi-Ming Xu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Ji-Kang Xie
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Hong-Yu Li
- Institute of Microbiology
- School of Life Sciences
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Peng-Fei Xu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| |
Collapse
|
61
|
Lu H, Liu JY, Li CG, Lin JB, Liang YM, Xu PF. A new chiral C1-symmetric NHC-catalyzed addition to α-aryl substituted α,β-disubstituted enals: enantioselective synthesis of fully functionalized dihydropyranones. Chem Commun (Camb) 2015; 51:4473-6. [DOI: 10.1039/c5cc00118h] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A new C1-symmetric biarylsaturated imidazolium exhibits a superior ability to enable previously unavailable transformation, and the corresponding fully functionalized dihydropyranones are efficiently synthesized.
Collapse
Affiliation(s)
- Hong Lu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Jin-Yu Liu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Chen-Guang Li
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Jun-Bing Lin
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Peng-Fei Xu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| |
Collapse
|
62
|
Loh CCJ, Chauhan P, Hack D, Lehmann C, Enders D. Rapid Asymmetric Synthesis of Highly Functionalized Indanolsviaa Michael/Henry Organocascade with Submol% Squaramide Catalyst Loadings. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400499] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
63
|
Adrio J, Carretero JC. Recent advances in the catalytic asymmetric 1,3-dipolar cycloaddition of azomethine ylides. Chem Commun (Camb) 2014; 50:12434-46. [DOI: 10.1039/c4cc04381b] [Citation(s) in RCA: 289] [Impact Index Per Article: 28.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The scope of the catalytic asymmetric 1,3-dipolar cycloaddition of azomethine ylides has been greatly expanded by the incorporation of novel types of dipolarophiles and dipole precursors. This feature article summarizes the recent development in this area.
Collapse
Affiliation(s)
- Javier Adrio
- Departamento de Química Orgánica
- Facultad de Ciencias
- Universidad Autónoma de Madrid
- 28049 Madrid, Spain
| | - Juan C. Carretero
- Departamento de Química Orgánica
- Facultad de Ciencias
- Universidad Autónoma de Madrid
- 28049 Madrid, Spain
| |
Collapse
|