1
|
Zheng R, Xu A, Huang J, Zhang Z, Yin X, Zhang T, Hu W, Qian Y. A Rh(II)-catalyzed highly stereoselective [3 + 2] annulation of vinyl diazoacetates with indole-2-carbaldehyde for the synthesis of indolyl dihydrofurans. Mol Divers 2022; 26:3379-3386. [PMID: 35050450 DOI: 10.1007/s11030-022-10381-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/08/2022] [Indexed: 10/19/2022]
Abstract
A highly stereoselective Rh2(Oct)4-catalyzed [3 + 2] cycloaddition of vinyl diazoacetates with indolyl aldehyde has been developed. This protocol provides an efficient access to both cis and trans indolyl dihydrofurans with high yields and diastereoselectivities under mild conditions without or with Lewis acid as additive, respectively. Moreover, these generated functionalized dihydrofurans exhibit potent antiproliferation activity in three different cancer cell lines.
Collapse
Affiliation(s)
- Rimei Zheng
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Aimin Xu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Jiawu Huang
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Zhijing Zhang
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Xinru Yin
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Tianyuan Zhang
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Wenhao Hu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Yu Qian
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
| |
Collapse
|
2
|
Manel A, Berreur J, Leroux FR, Panossian A. Electrophilic fluorosulfoxonium cations as hidden Brønsted acid catalysts in ( n + 2) annulations of strained cycloalkanes. Org Chem Front 2021. [DOI: 10.1039/d1qo00840d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A fluorosulfoxonium cation and triflic acid were shown to promote (n + 2) annulations of donor–acceptor cyclopropanes or -butanes with 1,2-dipoles, with different activity and selectivity but a presumed similar role as (hidden) Brønsted acids.
Collapse
Affiliation(s)
- Augustin Manel
- Université de Strasbourg, Université de Haute-Alsace, CNRS, LIMA, UMR 7042, 67000 Strasbourg, France
| | - Jordan Berreur
- Université de Strasbourg, Université de Haute-Alsace, CNRS, LIMA, UMR 7042, 67000 Strasbourg, France
| | - Frédéric R. Leroux
- Université de Strasbourg, Université de Haute-Alsace, CNRS, LIMA, UMR 7042, 67000 Strasbourg, France
| | - Armen Panossian
- Université de Strasbourg, Université de Haute-Alsace, CNRS, LIMA, UMR 7042, 67000 Strasbourg, France
| |
Collapse
|
3
|
Hussein AA. Ru-catalysed oxidative cyclisation of 1,5-dienes: an unprecedented role for the co-oxidant. RSC Adv 2020; 10:15228-15238. [PMID: 35495449 PMCID: PMC9052297 DOI: 10.1039/d0ra02303e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 03/30/2020] [Indexed: 11/21/2022] Open
Abstract
The Ru-mediated oxidative cyclisation of 1,5-dienes to furnish 2,5-dihydroxyalkyl-substituted tetrahydrofuran-diols (THF-diols) represents a practical approach for the synthesis of many bioactive natural products. In the current study, we reported profound findings obtained by density functional theory (DFT) simulations, and they were consistent with the experimental conditions. The results set out a catalytic cycle within intermediacy of NaIO4-complexed Ru(vi) species. Importantly, the co-oxidant played a critical role in the cyclisation step and subsequently the release of THF-diols. Following the formation of Ru(vi) glycolate, cyclisation and THF-diol release proceeded through NaIO4-coordinated Ru(vi) intermediates, outpacing the Ru(viii) glycolate or THF-diolate intermediates and subsequently entering “second cycle” type pathways. The results indicated a cycle involving Ru(viii)/Ru(vi)/Ru(iv)/Ru(vi) rather than Ru(viii)/Ru(vi)/Ru(viii)/Ru(vi)/Ru(viii). Additionally, the existence of an electron-withdrawing group (EWG) on one of the double bonds of 1,5-dienes revealed that the regioselectivity of the Ru-catalysed oxidative cyclisation was predominantly initiated at the electron-rich alkene. Overall, this study offers new insights, which were ignored by earlier experimentalists and theoreticians, into the Ru-catalysed functionalizations of alkenes and 1,5-dienes. The Ru-mediated oxidative cyclisation of 1,5-dienes to THF-diols proceeds with the intermediacy of NaIO4-complexed Ru(vi) species and offers new insights into the Ru-catalysed functionalizations of alkenes and 1,5-dienes.![]()
Collapse
Affiliation(s)
- Aqeel A Hussein
- School of Chemistry, University of Southampton Southampton Hampshire SO17 1BJ UK .,College of Dentistry, University of Al-Ameed PO Box 198 Karbala Iraq
| |
Collapse
|
4
|
Hussein AA, Phipps MJS, Skylaris CK, Brown RCD. Mechanism of Os-Catalyzed Oxidative Cyclization of 1,5-Dienes. J Org Chem 2019; 84:15173-15183. [PMID: 31664829 DOI: 10.1021/acs.joc.9b02174] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The oxidative cyclization of 1,5-dienes by metal-oxo species is a powerful method for stereocontrolled synthesis of tetrahydrofuran diols (THF-diols), structural motifs present in many bioactive natural products. Oxidative cyclization of (2E,6E)-octa-2,6-diene catalyzed by OsO4/NMO has been studied using density functional theory (DFT) calculations (M06-2X/aug-cc-pVDZ/Hay-Wadt VDZ (n+1) ECP), highlighting the remarkable effect of acid on the fate of the first intermediate, an Os(VI) dioxoglycolate. A strong acid promotes cyclization of the Os(VI) dioxoglycolate, or its NMO complex, through protonation of an oxo ligand to give more electrophilic species. By contrast, in the absence of acid, reoxidation may occur to afford the Os(VIII) trioxoglycolate, which is shown to favor conventional "second cycle" dihydroxylation reactivity rather than cyclization. The results of the calculations are consistent with experimental results for reactions of OsO4/NMO with 1,5-dienes with acid (oxidative cyclization) and without acid (second cycle osmylation/dihydroxylation). Detailed evaluation of potential catalytic cycles supports oxidation of the cyclized Os(IV) THF-diolate intermediate to the corresponding Os(VI) species followed by slow hydrolysis and, finally, regeneration of OsO4.
Collapse
Affiliation(s)
- Aqeel A Hussein
- Department of Chemistry , University of Southampton , Southampton , Hampshire SO17 1BJ , U.K.,Faculty of Dentistry , University of Al-Ameed , Karbala , P.O. Box No. 198, Iraq
| | - Maximillian J S Phipps
- Department of Chemistry , University of Southampton , Southampton , Hampshire SO17 1BJ , U.K
| | - Chris-Kriton Skylaris
- Department of Chemistry , University of Southampton , Southampton , Hampshire SO17 1BJ , U.K
| | - Richard C D Brown
- Department of Chemistry , University of Southampton , Southampton , Hampshire SO17 1BJ , U.K
| |
Collapse
|
5
|
Hamza-Reguig S, Bentabed-Ababsa G, Domingo LR, Ríos-Gutiérrez M, Philippot S, Fontanay S, Duval RE, Ruchaud S, Bach S, Roisnel T, Mongin F. A combined experimental and theoretical study of the thermal [3+2] cycloaddition of carbonyl ylides with activated alkenes. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.12.052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
6
|
|
7
|
Grélaud S, Lusseau J, Landais Y. Acyl Radical Addition to Activated Olefins: A Stereocontrolled Route to Polysubstituted Tetrahydrofurans and Lactones, and Application to the Total Synthesis of (+)-No. 2106 A. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601624] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Simon Grélaud
- Institute of Molecular Sciences, UMR-CNRS-5255; University of Bordeaux; 351 cours de la libération 33405 Talence CEDEX France
| | - Jonathan Lusseau
- Institute of Molecular Sciences, UMR-CNRS-5255; University of Bordeaux; 351 cours de la libération 33405 Talence CEDEX France
| | - Yannick Landais
- Institute of Molecular Sciences, UMR-CNRS-5255; University of Bordeaux; 351 cours de la libération 33405 Talence CEDEX France
| |
Collapse
|
8
|
Reddel JCT, Wang W, Koukounas K, Thomson RJ. Triflimide-catalyzed allylsilane annulations of benzylic alcohols for the divergent synthesis of indanes and tetralins. Chem Sci 2016; 8:2156-2160. [PMID: 28507668 PMCID: PMC5407261 DOI: 10.1039/c6sc04762a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 12/05/2016] [Indexed: 12/18/2022] Open
Abstract
The development of a triflimide-catalyzed annulation of benzylic alcohols with allylsilanes for the synthesis of indane or tetralin structures is reported. In this fragment coupling reaction, complexity is built rapidly from readily available starting materials to yield diverse sets of products with up to three contiguous stereocenters. Indanes or tetralins can be generated from common precursors depending on the structure of the allylsilane reagent used. The concise synthesis of several lignan natural products highlights the utility of this newly devised methodology.
Collapse
Affiliation(s)
- Jordan C T Reddel
- Department of Chemistry , Northwestern University , 2145 Sheridan Rd. , Evanston , IL 60208 , USA .
| | - Weiwei Wang
- Department of Chemistry , Northwestern University , 2145 Sheridan Rd. , Evanston , IL 60208 , USA .
| | - Kalli Koukounas
- Department of Chemistry , Northwestern University , 2145 Sheridan Rd. , Evanston , IL 60208 , USA .
| | - Regan J Thomson
- Department of Chemistry , Northwestern University , 2145 Sheridan Rd. , Evanston , IL 60208 , USA .
| |
Collapse
|
9
|
Tata RR, Harmata M. Silver-Catalyzed Cyclization of Sulfonyl Allenes to Dihydrofurans. Org Lett 2016; 18:5684-5687. [PMID: 27786483 DOI: 10.1021/acs.orglett.6b02917] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Rama Rao Tata
- Department of Chemistry, University of Missouri—Columbia, Columbia, Missouri 65211, United States
| | - Michael Harmata
- Department of Chemistry, University of Missouri—Columbia, Columbia, Missouri 65211, United States
| |
Collapse
|
10
|
Chany AC, Marx LB, Burton JW. Synthesis of bicyclic tetrahydrofurans from linear precursors using manganese(iii) acetate. Org Biomol Chem 2015; 13:9190-3. [DOI: 10.1039/c5ob01091h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cyclisation of a range of alkoxy-malonates in the presence of manganese(iii) acetate gives rise to bicyclic lactone/THFs and lactone/lactones in synthetically useful yields and diastereoselectivities.
Collapse
Affiliation(s)
| | - Léo B. Marx
- Department of Chemistry
- Chemistry Research Laboratory
- Oxford
- UK
| | | |
Collapse
|