1
|
Sang X, Mo Y, Li S, Liu X, Cao W, Feng X. Bimetallic tandem catalysis-enabled enantioselective cycloisomerization/carbonyl-ene reaction for construction of 5-oxazoylmethyl α-silyl alcohol. Chem Sci 2023; 14:8315-8320. [PMID: 37564412 PMCID: PMC10411629 DOI: 10.1039/d3sc01048a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 07/06/2023] [Indexed: 08/12/2023] Open
Abstract
A bimetallic tandem catalysis-enabled enantioselective cycloisomerization/carbonyl-ene reaction was developed. The reaction proceeded well with a broad range of N-propargylamides and acylsilanes, affording the target chiral 5-oxazoylmethyl α-silyl alcohols in up to 95% yield and 99% ee under mild conditions. Importantly, this facile protocol was available for the late-stage modification of several bioactive molecules. Based on the mechanistic study and control experiments, a possible catalytic cycle and transition state are proposed to elucidate the reaction process and enantioinduction.
Collapse
Affiliation(s)
- Xinpeng Sang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Yuhao Mo
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Shiya Li
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Weidi Cao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| |
Collapse
|
2
|
Wang ZH, You Y, Zhao JQ, Zhang YP, Yin JQ, Yuan WC. Recent Progress in Heterocycle Synthesis: Cyclization Reaction with Pyridinium and Quinolinium 1,4-Zwitterions. Molecules 2023; 28:molecules28073059. [PMID: 37049822 PMCID: PMC10095670 DOI: 10.3390/molecules28073059] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 03/21/2023] [Accepted: 03/27/2023] [Indexed: 04/14/2023] Open
Abstract
Heteroarene 1, n-zwitterions are powerful and versatile building blocks in the construction of heterocycles and have received increasing attention in recent years. In particular, pyridinium and quinolinium 1,4-zwitterions have been widely studied and used in a variety of cyclization reactions due to their air stability, ease of use, and high efficiency. Sulfur- and nitrogen-based pyridinium and quinolinium 1,4-zwitterions, types of emerging heteroatom-containing synthons, have attracted much attention from chemists. These 1,4-zwitterions, which contain multiple reaction sites, have been successfully used in the synthesis of three- to eight-membered cyclic compounds over the last decade. In this review, we present the exciting progress made in the field of cyclization reactions of sulfur- and nitrogen-based pyridinium and quinolinium 1,4-zwitterions. Moreover, the mechanistic insights, the transition states, some synthetic applications, and the challenges and opportunities are also discussed. We hope to provide an overview for synthetic chemists who are interested in the heterocycle synthesis from cyclization reaction with pyridinium and quinolinium 1,4-zwitterions pyridinium and quinolinium 1,4-zwitterions.
Collapse
Affiliation(s)
- Zhen-Hua Wang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yong You
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Jian-Qiang Zhao
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yan-Ping Zhang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Jun-Qing Yin
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Wei-Cheng Yuan
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| |
Collapse
|
3
|
Peng X, Rahim A, Peng W, Jiang F, Gu Z, Wen S. Recent Progress in Cyclic Aryliodonium Chemistry: Syntheses and Applications. Chem Rev 2023; 123:1364-1416. [PMID: 36649301 PMCID: PMC9951228 DOI: 10.1021/acs.chemrev.2c00591] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Indexed: 01/18/2023]
Abstract
Hypervalent aryliodoumiums are intensively investigated as arylating agents. They are excellent surrogates to aryl halides, and moreover they exhibit better reactivity, which allows the corresponding arylation reactions to be performed under mild conditions. In the past decades, acyclic aryliodoniums are widely explored as arylation agents. However, the unmet need for acyclic aryliodoniums is the improvement of their notoriously low reaction economy because the coproduced aryl iodides during the arylation are often wasted. Cyclic aryliodoniums have their intrinsic advantage in terms of reaction economy, and they have started to receive considerable attention due to their valuable synthetic applications to initiate cascade reactions, which can enable the construction of complex structures, including polycycles with potential pharmaceutical and functional properties. Here, we are summarizing the recent advances made in the research field of cyclic aryliodoniums, including the nascent design of aryliodonium species and their synthetic applications. First, the general preparation of typical diphenyl iodoniums is described, followed by the construction of heterocyclic iodoniums and monoaryl iodoniums. Then, the initiated arylations coupled with subsequent domino reactions are summarized to construct polycycles. Meanwhile, the advances in cyclic aryliodoniums for building biaryls including axial atropisomers are discussed in a systematic manner. Finally, a very recent advance of cyclic aryliodoniums employed as halogen-bonding organocatalysts is described.
Collapse
Affiliation(s)
- Xiaopeng Peng
- College
of Pharmacy, Key Laboratory of Prevention and Treatment of Cardiovascular
and Cerebrovascular Diseases, Ministry of Education, Jiangxi Province
Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou341000, P.R. China
- State
Key Laboratory of Oncology in South China, Collaborative Innovation
Center for Cancer Medicine, Sun Yat-sen
University Cancer Center, 651 Dongfeng East Road, Guangzhou510060, P. R. China
| | - Abdur Rahim
- Department
of Chemistry, University of Science and
Technology of China, 96 Jinzhai Road, Hefei230026, P. R. China
| | - Weijie Peng
- College
of Pharmacy, Key Laboratory of Prevention and Treatment of Cardiovascular
and Cerebrovascular Diseases, Ministry of Education, Jiangxi Province
Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou341000, P.R. China
| | - Feng Jiang
- College
of Pharmacy, Key Laboratory of Prevention and Treatment of Cardiovascular
and Cerebrovascular Diseases, Ministry of Education, Jiangxi Province
Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou341000, P.R. China
| | - Zhenhua Gu
- Department
of Chemistry, University of Science and
Technology of China, 96 Jinzhai Road, Hefei230026, P. R. China
| | - Shijun Wen
- State
Key Laboratory of Oncology in South China, Collaborative Innovation
Center for Cancer Medicine, Sun Yat-sen
University Cancer Center, 651 Dongfeng East Road, Guangzhou510060, P. R. China
| |
Collapse
|
4
|
de Cózar A. Diastereoselectivity on Intramolecular Alder-ene Reaction of 1,6-Dienes. Chemphyschem 2022; 23:e202200377. [PMID: 35942565 PMCID: PMC10087545 DOI: 10.1002/cphc.202200377] [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: 06/02/2022] [Revised: 08/07/2022] [Indexed: 01/04/2023]
Abstract
A detailed computational study of the intramolecular Alder-ene reaction of different 1,6-dienes at M06-2X(PCM)/TZ2P level of theory has been performed. We want to understand the influence of enophile-geminal substitution pattern in the cis : trans selectivity of the cyclization process. Our analysis of the reaction coordinate by means of activation strain model of chemical reactivity (ASM-distortion interaction model) reveals that the cis-selectivity observed for unactivated reagents is related with high stabilizing orbital interaction and lower strain energy, consequence of an early transition structure. On the other hand, the presence of activating groups increases the asynchronicity of the transition structures and reduces the activation barrier due to more stabilizing orbital and electrostatic interactions, favoring trans-selectivity.
Collapse
Affiliation(s)
- Abel de Cózar
- Departamento de Química Orgánica I, Facultad de Química, Universidad del País Vasco and Donostia International Physics Center (DIPC) P. K. 1072, 20018, San Sebastián-Donostia, Spain.,IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, 48009, Bilbao, Spain
| |
Collapse
|
5
|
Gao Y, Pink M, Carta V, Smith JM. Ene Reactivity of an Fe═NR Bond Enables the Catalytic α-Deuteration of Nitriles and Alkynes. J Am Chem Soc 2022; 144:17165-17172. [PMID: 36070477 DOI: 10.1021/jacs.2c07462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein, we report the reactions of an Fe(II) imido complex [Ph2B(tBuIm)2Fe═NDipp]- (1) with internal alkynes and isobutyronitrile, affording the Fe amido allenyl complexes [Ph2B(tBuIm)2Fe(NHDipp)((R1)C═C═C(R2)(H))]- (R1 = Et or nPr; R2 = Me or Et, 2-5) and the Fe amido keteniminate complex [Ph2B(tBuIm)2Fe(NHDipp)(N═C═CMe2)K(THF)]n (8-K), respectively. These transformations represent the previously unknown ene-like reactivity of a metal-ligand multiple bond. Stoichiometric reactions of 2 and 8-K with DippNH2 lead to the regeneration of 3-hexyne and isobutyronitrile, respectively, with concomitant formation of the bis(anilido) complex [Ph2B(tBuIm)2Fe(NHDipp)2]- (9). These results provide the platform for 1 as an efficient catalyst for the selective α-deuteration of nitriles and alkynes by RND2. These results demonstrate a new reaction mode for metal imido complexes and suggest new avenues for using the imido ligand in catalysis.
Collapse
Affiliation(s)
- Yafei Gao
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Maren Pink
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Veronica Carta
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Jeremy M Smith
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| |
Collapse
|
6
|
Lv JX, Ding YQ, Huang CM, Guo LL, Fang JL, Jia X, Zhang WH, You S, Qin B. Enzyme- and Chemo-enzyme-Catalyzed Stereodivergent Synthesis. PHARMACEUTICAL FRONTS 2022. [DOI: 10.1055/s-0042-1755556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
Abstract
Multiple stereoisomers can be found when a substance contains chiral carbons in its chemical structure. To obtain the desired stereoisomers, asymmetric synthesis was proposed in the 1970s and developed rapidly at the beginning of this century. Stereodivergent synthesis, an extension of asymmetric synthesis in organic synthesis with the hope to produce all stereoisomers of chiral substances in high conversion and selectivity, enriches the variety of available products and serves as a reference suggestion for the synthesis of their derivatives and other compounds. Since biocatalysis has outstanding advantages of economy, environmental friendliness, high efficiency, and reaction at mild conditions, the biocatalytic reaction is regarded as an efficient strategy to perform stereodivergent synthesis. Thus, in this review, we summarize the stereodivergent synthesis catalyzed by enzymes or chemo-enzymes in cases where a compound contains two or three chiral carbons, i.e., at most four or eight stereoisomers are present. The types of reactions, including reduction of substituent ketones, cyclization reactions, olefin addition, and nonredox transesterification reactions, are also discussed for the understanding of the progress and application of biocatalysis in stereodivergent synthesis.
Collapse
Affiliation(s)
- Jia-Xiang Lv
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Ya-Qi Ding
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Chen-Ming Huang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Ling-Ling Guo
- Microbial Research Institute of Liaoning Province, Liaoyang, People's Republic of China
| | - Jia-Li Fang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Xian Jia
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Wen-He Zhang
- School of Life Sciences and Biopharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Song You
- School of Life Sciences and Biopharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Bin Qin
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| |
Collapse
|
7
|
zur Bonsen AB, Peralta RA, Fallon T, Huang DM, George JH. Intramolecular Tricarbonyl‐Ene Reactions and α‐Hydroxy‐β‐Diketone Rearrangements Inspired by the Biosynthesis of Polycyclic Polyprenylated Acylphloroglucinols. Angew Chem Int Ed Engl 2022; 61:e202203311. [PMID: 35680561 PMCID: PMC9541541 DOI: 10.1002/anie.202203311] [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: 03/03/2022] [Indexed: 11/11/2022]
Abstract
Structurally unique natural products pose biosynthetic puzzles whose solution can inspire new chemical reactions. Herein, we propose a unified biosynthetic pathway towards some complex meroterpenoids—the hyperireflexolides, biyoulactones, hybeanones and hypermonones. This hypothesis led to the discovery of uncatalyzed, intramolecular carbonyl‐ene reactions that are spontaneous at room temperature. We also developed an anionic cascade reaction featuring an α‐hydroxy‐β‐diketone rearrangement and an intramolecular aldol reaction to access four distinct natural product scaffolds from a common intermediate.
Collapse
Affiliation(s)
| | - Ricardo A. Peralta
- Department of Chemistry The University of Adelaide Adelaide SA 5005 Australia
| | - Thomas Fallon
- Department of Chemistry The University of Adelaide Adelaide SA 5005 Australia
| | - David M. Huang
- Department of Chemistry The University of Adelaide Adelaide SA 5005 Australia
| | - Jonathan H. George
- Department of Chemistry The University of Adelaide Adelaide SA 5005 Australia
| |
Collapse
|
8
|
BF3*OEt2 catalyzed synthesis of spiropyrrolidine frameworks via (3,5)-oxonium-ene cyclization. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
9
|
zur Bonsen AB, Peralta RA, Fallon T, Huang DM, George JH. Intramolecular Tricarbonyl‐Ene Reactions and α‐Hydroxy‐β‐Diketone Rearrangements Inspired by the Biosynthesis of Polycyclic Polyprenylated Acylphloroglucinols. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | | | | | - Jonathan Harry George
- The University of Adelaide School of Physical Sciences Department of ChemistryAdelaide 5005 Adelaide AUSTRALIA
| |
Collapse
|
10
|
Balha M, Parida C, Chandra Pan S. Organocatalytic Asymmetric Ene Reactions. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Megha Balha
- Department of Chemistry Pandit Deendayal Energy University Gandhinagar Gujarat 382421 India
| | - Chandrakanta Parida
- Department of Chemistry Indian Institute of Technology Guwahati Assam 781039 India
| | - Subhas Chandra Pan
- Department of Chemistry Indian Institute of Technology Guwahati Assam 781039 India
| |
Collapse
|
11
|
Affiliation(s)
- Junsu Kim
- Department of Chemistry, and Research Institute of Basic Sciences Incheon National University 119 Academy-ro, Yeonsu-gu Incheon 22012 Republic of Korea
| | - Da Hye Lee
- Department of Chemistry, and Research Institute of Basic Sciences Incheon National University 119 Academy-ro, Yeonsu-gu Incheon 22012 Republic of Korea
| | - Jinho Kim
- Department of Chemistry, and Research Institute of Basic Sciences Incheon National University 119 Academy-ro, Yeonsu-gu Incheon 22012 Republic of Korea
| |
Collapse
|
12
|
Abstract
It has been proposed that biosyntheses of many natural products involve pericyclic reactions, including Diels-Alder (DA) reaction. However, only a small set of enzymes have been proposed to catalyze pericyclic reactions. Most surprisingly, there has been no formal identification of natural enzymes that can be defined to catalyze DA reactions (DAases), despite the wide application of the reaction in chemical syntheses of complex organic compounds. However, recent studies began to accumulate a growing body of evidence that supports the notion that enzymes that formally catalyze DA reactions, in fact exist. In this review, I will begin by describing a short history behind the discovery and characterization of macrophomate synthase, one of the earliest enzymes that was proposed to catalyze an intermolecular DA reaction during the biosynthesis of a substituted benzoic acid in a phytopathogenic fungus Macrophoma commelinae. Then, I will discuss representative enzymes that have been chemically authenticated to catalyze DA reactions, with emphasis on more recent discoveries of DAases involved mainly in fungal secondary metabolite biosynthesis except for one example from a marine streptomycete. The current success in identification of a series of DAases and enzymes that catalyze other pericyclic reactions owes to the combined efforts from both the experimental and theoretical approaches in discovering natural products. Such efforts typically involve identifying the chemical features derived from cycloaddition reactions, isolating the biosynthetic genes that encode enzymes that generate such chemical features and deciphering the reaction mechanisms for the enzyme-catalyzed pericyclic reactions.
Collapse
Affiliation(s)
- Kenji Watanabe
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, 422-8526, Japan.
| |
Collapse
|
13
|
Chen X, Lu Y, Guan Z, Gu L, Chen C, Zhu H, Luo Z, Zhang Y. Synthesis of Succinimides via Intramolecular Alder-Ene Reaction of 1,6-Enynes. Org Lett 2021; 23:3173-3178. [PMID: 33797270 DOI: 10.1021/acs.orglett.1c00888] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel and convenient method has been developed for the facile synthesis of functionalized succinimide derivatives via intramolecular Alder-ene reaction of 1,6-enynes. This reaction features mild and metal-free reaction conditions, which offers a green and efficient entry to synthetically important succinimide scaffolds. Preliminary mechanistic studies suggest that a diradical intermediate might be involved in this transformation.
Collapse
Affiliation(s)
- Xia Chen
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yuling Lu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhenhua Guan
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Lianghu Gu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Chunmei Chen
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Hucheng Zhu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zengwei Luo
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yonghui Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| |
Collapse
|
14
|
Liu J, Xie Y, Yang Q, Huang N, Wang L. Ugi Four-Component Reaction Based on the in situ Capture of Amines and Subsequent Modification Tandem Cyclization Reaction: "One-Pot" Synthesis of Six- and Seven-Membered Heterocycles. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202012040] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
15
|
François B, Eberlin L, Berrée F, Whiting A, Carboni B. Generating Skeletal Diversity and Complexity from Boron-Substituted 1,3-Dienes and Enophiles. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000330] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Benjamin François
- Univ Rennes; CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226; 35000 Rennes France
| | - Ludovic Eberlin
- Univ Rennes; CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226; 35000 Rennes France
| | - Fabienne Berrée
- Univ Rennes; CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226; 35000 Rennes France
| | - Andrew Whiting
- Department of Chemistry; Durham University; Science Laboratories; South Road DH1 3LE Durham U.K
| | - Bertrand Carboni
- Univ Rennes; CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226; 35000 Rennes France
| |
Collapse
|
16
|
Zhang Q, Li Y, Wang J, Yang C, Liu C, Li X, Cheng J. B(C
6
F
5
)
3
/Chiral Phosphoric Acid Catalyzed Ketimine–Ene Reaction of 2‐Aryl‐3
H
‐indol‐3‐ones and α‐Methylstyrenes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915226] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Qing‐Xia Zhang
- State Key Laboratory of Elemento-Organic ChemistryCollege of ChemistryNankai University Tianjin 300071 P. R. China
| | - Yao Li
- State Key Laboratory of Elemento-Organic ChemistryCollege of ChemistryNankai University Tianjin 300071 P. R. China
| | - Jie Wang
- State Key Laboratory of Elemento-Organic ChemistryCollege of ChemistryNankai University Tianjin 300071 P. R. China
| | - Chen Yang
- State Key Laboratory of Elemento-Organic ChemistryCollege of ChemistryNankai University Tianjin 300071 P. R. China
| | - Cheng‐Jun Liu
- State Key Laboratory of Elemento-Organic ChemistryCollege of ChemistryNankai University Tianjin 300071 P. R. China
| | - Xin Li
- State Key Laboratory of Elemento-Organic ChemistryCollege of ChemistryNankai University Tianjin 300071 P. R. China
| | - Jin‐Pei Cheng
- State Key Laboratory of Elemento-Organic ChemistryCollege of ChemistryNankai University Tianjin 300071 P. R. China
| |
Collapse
|
17
|
Zhang QX, Li Y, Wang J, Yang C, Liu CJ, Li X, Cheng JP. B(C 6 F 5 ) 3 /Chiral Phosphoric Acid Catalyzed Ketimine-Ene Reaction of 2-Aryl-3H-indol-3-ones and α-Methylstyrenes. Angew Chem Int Ed Engl 2020; 59:4550-4556. [PMID: 31943586 DOI: 10.1002/anie.201915226] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 12/30/2019] [Indexed: 11/05/2022]
Abstract
The enantioselective ketimine-ene reaction is one of the most challenging stereocontrolled reaction types in organic synthesis. In this work, catalytic enantioselective ketimine-ene reactions of 2-aryl-3H-indol-3-ones with α-methylstyrenes were achieved by utilizing a B(C6 F5 )3 /chiral phosphoric acid (CPA) catalyst. These ketimine-ene reactions proceed well with low catalyst loading (B(C6 F5 )3 /CPA=2 mol %/2 mol %) under mild conditions, providing rapid and facile access to a series of functionalized 2-allyl-indolin-3-ones with very good reactivity (up to 99 % yield) and excellent enantioselectivity (up to 99 % ee). Theoretical calculations reveal that enhancement of the acidity of the chiral phosphoric acid by B(C6 F5 )3 significantly reduces the activation free energy barrier. Furthermore, collective favorable hydrogen-bonding interactions, especially the enhanced N-H⋅⋅⋅O hydrogen-bonding interaction, differentiates the free energy of the transition states of CPA and B(C6 F5 )3 /CPA, thereby inducing the improvement of stereoselectivity.
Collapse
Affiliation(s)
- Qing-Xia Zhang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Yao Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Jie Wang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Chen Yang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Cheng-Jun Liu
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Xin Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Jin-Pei Cheng
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| |
Collapse
|
18
|
Boureghda C, Macé A, Berrée F, Roisnel T, Debache A, Carboni B. Ene reactions of 2-borylated α-methylstyrenes: a practical route to 4-methylenechromanes and derivatives. Org Biomol Chem 2019; 17:5789-5800. [PMID: 31135020 DOI: 10.1039/c9ob00963a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
4-Methylenechromanes were prepared via a three-step process from 2-borylated α-methylstyrenes. This sequence is based on a key glyoxylate-ene reaction catalyzed by scandium(iii) triflate. The resulting γ-hydroxy boronates, which cyclise to seven-membered homologues of benzoxaborole on silica gel, were cleanly oxidized with sodium perborate, and then cyclised under Mitsunobu conditions. Additionally, several further functional transformations of 4-methylenechromanes or their precursors were carried out to illustrate the synthetic potential of these intermediates.
Collapse
Affiliation(s)
- Chaima Boureghda
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | | | | | | | | | | |
Collapse
|
19
|
Ren ZL, Lu WT, Cai S, Xiao MM, Yuan YF, Ping He, Ding MW. Isocyano(triphenylphosphoranylidene)acetates: Key to the One-Pot Synthesis of Oxazolo[4,5-c]quinoline Derivatives via a Sequential Ugi/Wittig/aza-Wittig Cyclization Process. J Org Chem 2019; 84:14911-14918. [DOI: 10.1021/acs.joc.9b02220] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Zhi-Lin Ren
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei Province 441053, P.R. China
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Central China Normal University, Wuhan 430079, P.R. China
| | - Wen-Ting Lu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Central China Normal University, Wuhan 430079, P.R. China
| | - Shuang Cai
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei Province 441053, P.R. China
| | - Mi-Mi Xiao
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei Province 441053, P.R. China
| | - Yue-Fei Yuan
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei Province 441053, P.R. China
| | - Ping He
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei Province 441053, P.R. China
| | - Ming-Wu Ding
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Central China Normal University, Wuhan 430079, P.R. China
| |
Collapse
|
20
|
Devi NR, Sultana S, Borah M, Saikia AK. Regio- and Diastereoselective Synthesis of Dihydropyrans and Pyranopyrans via Oxonium-Ene Reaction of β-Allenols and Aldehydes. J Org Chem 2018; 83:14987-14998. [PMID: 30461270 DOI: 10.1021/acs.joc.8b02244] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Bismuth trifluoromethanesulfonate can be efficiently used for the preparation of dihydropyrans from β-allenols and aldehydes by oxonium-ene reaction in good yields. The reaction is highly regioselective. On the other hand, the same reaction with trimethylsilyl trifluoromethanesulfonate at -45 °C affords the hexahydropyrano[4,3- b]pyran skeleton in moderate yields.
Collapse
Affiliation(s)
- Ngangbam Renubala Devi
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati 781039 , India
| | - Sabera Sultana
- School of Chemical Engineering , Yeungnam University , Gyeongsan 38541 , Republic of Korea
| | - Madhurjya Borah
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati 781039 , India
| | - Anil K Saikia
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati 781039 , India
| |
Collapse
|
21
|
Zhang LL, Zhang JW, Xiang SH, Guo Z, Tan B. Stereoselective Construction of Complex Spirooxindoles via Bisthiourea Catalyzed Three-Component Reactions. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800368] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Lin-Lin Zhang
- College of Material Science & Engineering; Taiyuan University of Technology; Taiyuan Shanxi 030024 China
- Department of Chemistry; South University of Science and Technology of China; Shenzhen Guangdong 518055 China
| | - Ji-Wei Zhang
- Department of Chemistry; South University of Science and Technology of China; Shenzhen Guangdong 518055 China
| | - Shao-Hua Xiang
- Academy for Advanced Interdisciplinary Studies; Southern University of Science and Technology; Shenzhen Guangdong 518055 China
| | - Zhen Guo
- College of Material Science & Engineering; Taiyuan University of Technology; Taiyuan Shanxi 030024 China
| | - Bin Tan
- Department of Chemistry; South University of Science and Technology of China; Shenzhen Guangdong 518055 China
| |
Collapse
|