1
|
Yu S, Cai Q, Li J, Yu T, Liang J, Jiao Z, Yao C, Li YM. Enantioselective Michael addition of malonates to β,γ-unsaturated α-ketoesters catalysed by Cu(II) complexes bearing binaphthyl-proline hybrid ligands. Org Biomol Chem 2023; 21:1764-1770. [PMID: 36723244 DOI: 10.1039/d2ob02305a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
High yields (up to 96%) and high ee (up to 92%) were achieved for chiral copper(II) complex-catalysed enantioselective Michael addition of malonates to β,γ-unsaturated-α-ketoesters. The chiral ligands took advantage of both the binaphthyl and the proline moieties, and substituents with different electronic and steric features could be tolerated. The reactions could be carried out under mild conditions, and a gram scale reaction could be realised without the loss of yield and enantioselectivity.
Collapse
Affiliation(s)
- Shibo Yu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China.
| | - Qihang Cai
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China.
| | - Jiahui Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China.
| | - Tianxu Yu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China.
| | - Jiemian Liang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China.
| | - Zilin Jiao
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China.
| | - Chao Yao
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China.
| | - Yue-Ming Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China.
| |
Collapse
|
2
|
Deng R, Han TJ, Gao X, Yang YF, Mei GJ. Further developments of β,γ-unsaturated α-ketoesters as versatile synthons in asymmetric catalysis. iScience 2022; 25:103913. [PMID: 35243262 PMCID: PMC8881726 DOI: 10.1016/j.isci.2022.103913] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
|
3
|
Mansaray JK, Huang Y, Li K, Sun X, Zha Z, Wang Z. Efficient Enantioselective Synthesis of Trisubstituted γ-Lactam via Michael Addition Reaction of 2, 3-dioxopyrrolidine with Indole in Aqueous Media. Org Biomol Chem 2022; 20:5510-5514. [DOI: 10.1039/d2ob00959e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient enantioselective Michael addition reaction of 2,3-dioxopyrrolidine with indole in aqueous media was developed by virtue of a chiral copper complex. This reaction features air tolerance, broad substrate scope...
Collapse
|
4
|
Torán R, Miguélez R, Sanz‐Marco A, Vila C, Pedro JR, Blay G. Asymmetric Addition and Cycloaddition Reactions with Ylidene‐Five‐Membered Heterocycles. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ricardo Torán
- Departament de Química Orgànica Universitat de València C/Dr. Moliner 50 46100- Burjassot (València) Spain
| | - Rubén Miguélez
- Departament de Química Orgànica Universitat de València C/Dr. Moliner 50 46100- Burjassot (València) Spain
| | - Amparo Sanz‐Marco
- Departament de Química Orgànica Universitat de València C/Dr. Moliner 50 46100- Burjassot (València) Spain
| | - Carlos Vila
- Departament de Química Orgànica Universitat de València C/Dr. Moliner 50 46100- Burjassot (València) Spain
| | - José R. Pedro
- Departament de Química Orgànica Universitat de València C/Dr. Moliner 50 46100- Burjassot (València) Spain
| | - Gonzalo Blay
- Departament de Química Orgànica Universitat de València C/Dr. Moliner 50 46100- Burjassot (València) Spain
| |
Collapse
|
5
|
Zhou C, Lv J, Xu W, Lu H, Kato T, Liu Y, Maruoka K. Highly Selective Monoalkylation of Active Methylene and Related Derivatives using Alkylsilyl Peroxides by a Catalytic CuI‐DMAP System. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100440] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Canhua Zhou
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Jiamin Lv
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Weiping Xu
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Hanbin Lu
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Terumasa Kato
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery Guangdong University of Technology Guangzhou 510006 P. R. China
- Graduate School of Pharmaceutical Sciences Kyoto University Sakyo Kyoto 606-8501 Japan
| | - Yan Liu
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery Guangdong University of Technology Guangzhou 510006 P. R. China
| | - Keiji Maruoka
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery Guangdong University of Technology Guangzhou 510006 P. R. China
- Graduate School of Pharmaceutical Sciences Kyoto University Sakyo Kyoto 606-8501 Japan
| |
Collapse
|
6
|
Parida C, Pan SC. Organocatalytic asymmetric Michael/acyl transfer reaction between α-nitroketones and 4-arylidenepyrrolidine-2,3-diones. Beilstein J Org Chem 2021; 17:1447-1452. [PMID: 34221173 PMCID: PMC8218544 DOI: 10.3762/bjoc.17.100] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 05/31/2021] [Indexed: 01/04/2023] Open
Abstract
An organocatalytic asymmetric Michael/acyl transfer reaction between α-nitroketones and 4-arylidenepyrrolidine-2,3-diones is reported. A bifunctional thiourea catalyst was found to be effective for this reaction. With 10 mol % of the catalyst, good results were attained for a variety of 1,5-dihydro-2H-pyrrol-2-ones under mild reaction conditions.
Collapse
Affiliation(s)
- Chandrakanta Parida
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam, 781039, India
| | - Subhas Chandra Pan
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam, 781039, India
| |
Collapse
|
7
|
Mahato CK, Mukherjee S, Kundu M, Vallapure VP, Pramanik A. Asymmetric 1,4-Michael Addition in Aqueous Medium Using Hydrophobic Chiral Organocatalysts. J Org Chem 2021; 86:5213-5226. [PMID: 33764066 DOI: 10.1021/acs.joc.1c00124] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Organic transformations exclusively in water as an environmentally friendly and safe medium have drawn significant interest in the recent years. Moreover, transition metal-free synthesis of enantiopure molecules in water will have a great deal of attention as the system will mimic the natural enzymatic reactions. In this work, a new set of proline-derived hydrophobic organocatalysts have been synthesized and utilized for asymmetric Michael reactions in water as the sole reaction medium. Among the various catalysts screened, the catalyst 1 is indeed efficient for stereoselective 1,4-conjugated Michael additions (dr: >97:3, ee up to >99.9%) resulting in high chemical yields (up to 95%) in a very short reaction time (1 h) at room temperature. This methodology provides a robust, green, and convenient protocol and can thus be an important addition to the arsenal of the asymmetric Michael addition reaction. Upon successful implementation, the present strategy also led to the formation of an optically active octahydroindole, the key component found in many natural products.
Collapse
Affiliation(s)
- Chandan K Mahato
- TCG Lifesciences Pvt. Limited, BN-7, Sector V, Salt Lake City, Kolkata 700091, India.,Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
| | - Sayan Mukherjee
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
| | - Mrinalkanti Kundu
- TCG Lifesciences Pvt. Limited, BN-7, Sector V, Salt Lake City, Kolkata 700091, India
| | - Virbhadra P Vallapure
- TCG Lifesciences Pvt. Limited, BN-7, Sector V, Salt Lake City, Kolkata 700091, India
| | - Animesh Pramanik
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
| |
Collapse
|
8
|
Mo Y, Zhang X, Yao Y, Duan C, Ye L, Shi Z, Zhao Z, Li X. Construction of Chiral Isotetronic Acid-Fused Thiochromane via Doubly Annulative Strategy. J Org Chem 2021; 86:4448-4456. [PMID: 33651601 DOI: 10.1021/acs.joc.0c02878] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A sulfa-Michael/aldol/lactonization cascade reaction has been established to construct isotetronic acid-fused thiochromanes in a highly stereoselective fashion (≥11:1 dr, 35-98% ee). The tricyclic products were obtained in 35-99% isolated yields in the presence of a bifunctional squaramide. Three reactive sites of β,γ-unsaturated α-ketoester, including the less-explored ester carbonyl group, were sequentially utilized to construct two fused heterocycles in a one-pot operation.
Collapse
Affiliation(s)
- Yiran Mo
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
| | - Xuehuan Zhang
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
| | - Yongqi Yao
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
| | - Cong Duan
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
| | - Ling Ye
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Zhichuan Shi
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
| | - Zhigang Zhao
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
| | - Xuefeng Li
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
| |
Collapse
|