1
|
Chen LQ, Zhu CF, Zhang S, Liu BY, Tu SJ, Hao WJ, Jiang B. Palladium-catalyzed annulative allylic alkylation for regioselective construction of indole-fused medium-sized cyclic ethers. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
|
2
|
Xie J, Dong G. Cyclopropylcarbinyl cation chemistry in synthetic method development and natural product synthesis: cyclopropane formation and skeletal rearrangement. Org Chem Front 2023. [DOI: 10.1039/d3qo00282a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
In this Review, the underrecognized utilities of the cyclopropylcarbinyl cation chemistry are summarized in cyclopropane synthesis and skeletal rearrangements, and their applications in natural product total synthesis are highlighted.
Collapse
|
3
|
Brookhart's Acid‐Catalyzed Switchable Regioselective
N
‐Alkylation of Arylamines/Heterocyclic Amines with Cyclopropylcarbinols by Temperature Regulation. Chemistry 2022; 28:e202201938. [DOI: 10.1002/chem.202201938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Indexed: 11/07/2022]
|
4
|
Zhang T, Zhuang H, Tang L, Han Z, Guo W, Huang H, Sun J. Catalytic Enantioselective Synthesis of 2,3-Dihydrobenzo[ b]oxepines via Asymmetric Oxetane Opening by Internal Carbon Nucleophiles. Org Lett 2021; 24:207-212. [PMID: 34914391 DOI: 10.1021/acs.orglett.1c03852] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An intramolecular C-C formation process based on catalytic asymmetric oxetane opening by carbon nucleophiles has been developed, which provides rapid access to a range of valuable enantioenriched 2,3-dihydrobenzo[b]oxepines. With the combination of Sc(OTf)3 and a Box ligand, good chemical efficiency and enantioselectivity were achieved under mild conditions. The products are also useful precursors to other valuable structures, such as the bicyclo[3.2.2]nonane derivatives.
Collapse
Affiliation(s)
- Tianyu Zhang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Han Zhuang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Luning Tang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Zhengyu Han
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Wengang Guo
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jianwei Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 999077, China
| |
Collapse
|
5
|
Zhou N, Wu S, Kuang K, Xia Z, Xu Q, Zhang M. A photoredox- or metal-catalyzed three-component cyanoalkylsulfonylation reaction of 1-(allyloxy)-2-(1-arylvinyl)benzenes, potassium metabisulfite, and cycloketone oxime esters: synthesis of cyanoalkylsulfonylated benzoxepines. Org Chem Front 2021. [DOI: 10.1039/d1qo01183a] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A visible light photocatalyzed or metal-catalyzed three-component cyanoalkylsulfonylation of 1-(allyloxy)-2-(1-arylvinyl)benzenes, potassium metabisulfite and cyclobutanone oxime esters is developed.
Collapse
Affiliation(s)
- Nengneng Zhou
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Sixin Wu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Kaimo Kuang
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Ziqin Xia
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Qiankun Xu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Man Zhang
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| |
Collapse
|
6
|
Zhou N, Kuang K, Wu M, Wu S, Xia Z, Xu Q, Zhang M. Visible-light-induced radical cascade cyclization of 1-(allyloxy)-2-(1-arylvinyl)benzenes with sulfonyl chlorides for the synthesis of sulfonated benzoxepines. Org Chem Front 2021. [DOI: 10.1039/d1qo00611h] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A visible light photocatalyzed cascade sulfonylation/cyclization of 1-(allyloxy)-2-(1-arylvinyl)benzenes with sulfonyl chlorides for the construction of sulfonated benzoxepines is developed.
Collapse
Affiliation(s)
- Nengneng Zhou
- Key Laboratory of Functionalized Molecular Solids
- Ministry of Education
- Anhui Key Laboratory of Molecule-Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Kaimo Kuang
- Key Laboratory of Functionalized Molecular Solids
- Ministry of Education
- Anhui Key Laboratory of Molecule-Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Meixia Wu
- Key Laboratory of Functionalized Molecular Solids
- Ministry of Education
- Anhui Key Laboratory of Molecule-Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Sixin Wu
- Key Laboratory of Functionalized Molecular Solids
- Ministry of Education
- Anhui Key Laboratory of Molecule-Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Ziqin Xia
- Key Laboratory of Functionalized Molecular Solids
- Ministry of Education
- Anhui Key Laboratory of Molecule-Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Qiankun Xu
- Key Laboratory of Functionalized Molecular Solids
- Ministry of Education
- Anhui Key Laboratory of Molecule-Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Man Zhang
- Key Laboratory of Functionalized Molecular Solids
- Ministry of Education
- Anhui Key Laboratory of Molecule-Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
| |
Collapse
|
7
|
Lanke V, Marek I. Nucleophilic Substitution at Quaternary Carbon Stereocenters. J Am Chem Soc 2020; 142:5543-5548. [DOI: 10.1021/jacs.0c01133] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Veeranjaneyulu Lanke
- Schulich Faculty of Chemistry, Technion − Israel Institute of Technology, Technion City 3200009, Haifa, Israel
| | - Ilan Marek
- Schulich Faculty of Chemistry, Technion − Israel Institute of Technology, Technion City 3200009, Haifa, Israel
| |
Collapse
|
8
|
A dehydrative arylation and thiolation of tertiary alcohols catalyzed by in situ generated triflic acid - Viable protocol for C C and C S bond formation. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.09.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
9
|
Xiang H, Zhao QL, Xia PJ, Xiao JA, Ye ZP, Xie X, Sheng H, Chen XQ, Yang H. Visible-Light-Induced External Radical-Triggered Annulation To Access CF 2-Containing Benzoxepine Derivatives. Org Lett 2018; 20:1363-1366. [PMID: 29446953 DOI: 10.1021/acs.orglett.8b00131] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A facile and diversified synthesis of functionalized CF2-containing benzoxepine derivatives via photoredox catalysis was achieved in this work. This novel protocol features broad substrate scope, mild reaction conditions, operational simplicity, easy scale-up, and versatile derivatization, which would facilitate its practical and broad applications in the construction of valuable and synthetically challenging heterocycles.
Collapse
Affiliation(s)
- Haoyue Xiang
- College of Chemistry and Chemical Engineering, Central South University , Changsha 410083, China
| | - Qing-Lan Zhao
- College of Chemistry and Chemical Engineering, Central South University , Changsha 410083, China
| | - Peng-Ju Xia
- College of Chemistry and Chemical Engineering, Central South University , Changsha 410083, China
| | - Jun-An Xiao
- College of Chemistry and Materials Science, Guangxi Teachers Education University , Nanning 530000, China
| | - Zhi-Peng Ye
- College of Chemistry and Chemical Engineering, Central South University , Changsha 410083, China
| | - Xiong Xie
- College of Chemistry and Chemical Engineering, Central South University , Changsha 410083, China
| | - Huan Sheng
- College of Chemistry and Chemical Engineering, Central South University , Changsha 410083, China
| | - Xiao-Qing Chen
- College of Chemistry and Chemical Engineering, Central South University , Changsha 410083, China
| | - Hua Yang
- College of Chemistry and Chemical Engineering, Central South University , Changsha 410083, China
| |
Collapse
|
10
|
Schlegel M, Schneider C. Lewis Acid-Catalyzed Nucleophilic Addition of Indoles to in Situ-Generated 2-Amidoallyl Cations. J Org Chem 2017; 82:5986-5992. [DOI: 10.1021/acs.joc.7b00791] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Marcel Schlegel
- Institut für Organische
Chemie, University of Leipzig, Johannisallee 29, D-04103 Leipzig, Germany
| | - Christoph Schneider
- Institut für Organische
Chemie, University of Leipzig, Johannisallee 29, D-04103 Leipzig, Germany
| |
Collapse
|
11
|
Zhao Y, Jin J, Boyle JW, Lee BR, Day DP, Susanti D, Clarkson GJ, Chan PWH. Silver-Catalyzed 1,3-Acyloxy Migration/Diels–Alder Reaction of 1,9-Dien-4-yne Esters to Partially Hydrogenated Isoquinolines. J Org Chem 2017; 82:2826-2834. [DOI: 10.1021/acs.joc.7b00048] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yichao Zhao
- School
of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Jianwen Jin
- School
of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | | | - Bo Ra Lee
- School
of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - David Philip Day
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Dewi Susanti
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Guy James Clarkson
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Philip Wai Hong Chan
- School
of Chemistry, Monash University, Clayton, Victoria 3800, Australia
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| |
Collapse
|
12
|
Shiva Kumar K, Siddi Ramulu M, Rajesham B, Kumar NP, Voora V, Kancha RK. FeCl3 catalysed 7-membered ring formation in a single pot: a new route to indole-fused oxepines/azepines and their cytotoxic activity. Org Biomol Chem 2017; 15:4468-4476. [DOI: 10.1039/c7ob00715a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
FeCl3 catalysed construction of 7 membered ring, oxepine and azepine derivatives by the reaction of 2,3-dichloro N-heterocycles with 2-(1H-indol-2-yl)phenol/aniline. Several of these compounds were found anti-proliferative properties against cancer cell lines.
Collapse
Affiliation(s)
- K. Shiva Kumar
- Department of Chemistry
- Osmania University
- Hyderabad-500 007
- India
| | | | | | | | - Vani Voora
- Molecular Medicine and Therapeutics Laboratory
- CPMB
- Osmania University
- Hyderabad-500007
- India
| | - Rama Krishna Kancha
- Molecular Medicine and Therapeutics Laboratory
- CPMB
- Osmania University
- Hyderabad-500007
- India
| |
Collapse
|
13
|
Chwastek M, Pieczykolan M, Stecko S. The Synthesis of 5-Amino-dihydrobenzo[b]oxepines and 5-Amino-dihydrobenzo[b]azepines via Ichikawa Rearrangement and Ring-Closing Metathesis. J Org Chem 2016; 81:9046-9074. [PMID: 27574830 DOI: 10.1021/acs.joc.6b01691] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The combination of Ichikawa's rearrangement and a ring-closing metathesis reaction of allyl carbamates is presented as a method for the preparation of 5-amino-substituted 2,5-dihydro-benzo[b]oxepines, 2,5-dihydro-benzo[b]azepines, and 2,5-dihydro-benzo[b]thiepins. It was demonstrated that the use of nonracemic allyl carbamates enables the synthesis of enantioenriched benzo-fused seven-membered heterocycles. Finally, it was shown that further functionalization of the obtained structures allows access to pharmacologically active 5-amino-substituted 2,3,4,5-tetrahydro-1-benzo[b]oxepine scaffolds.
Collapse
Affiliation(s)
- Monika Chwastek
- Institute of Organic Chemistry, Polish Academy of Sciences , Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Michał Pieczykolan
- Institute of Organic Chemistry, Polish Academy of Sciences , Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Sebastian Stecko
- Institute of Organic Chemistry, Polish Academy of Sciences , Kasprzaka 44/52, 01-224 Warsaw, Poland
| |
Collapse
|
14
|
Sandridge MJ, France S. Calcium-Catalyzed, Dehydrative, Ring-Opening Cyclizations of Cyclopropyl Carbinols Derived from Donor–Acceptor Cyclopropanes. Org Lett 2016; 18:4218-21. [DOI: 10.1021/acs.orglett.6b01933] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Matthew J. Sandridge
- School
of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Stefan France
- School
of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- Petit
Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| |
Collapse
|
15
|
Sasaki T, Miyagi K, Moriyama K, Togo H. Direct Preparation of 3-Iodochromenes from 3-Aryl- and 3-Alkyl-2-propyn-1-ols with Diaryliodonium Salts and NIS. Org Lett 2016; 18:944-7. [DOI: 10.1021/acs.orglett.5b03651] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Teppei Sasaki
- Graduate
School of Science, Chiba University, Yayoi-cho 1-33,
Inage-ku, Chiba 263-8522, Japan
| | - Kotaro Miyagi
- Graduate
School of Science, Chiba University, Yayoi-cho 1-33,
Inage-ku, Chiba 263-8522, Japan
| | - Katsuhiko Moriyama
- Graduate
School of Science, Chiba University, Yayoi-cho 1-33,
Inage-ku, Chiba 263-8522, Japan
- Molecular
Chirality Research Center, Chiba University, Yayoi-cho 1-33,
Inage-ku, Chiba 263-8522, Japan
| | - Hideo Togo
- Graduate
School of Science, Chiba University, Yayoi-cho 1-33,
Inage-ku, Chiba 263-8522, Japan
| |
Collapse
|
16
|
Ouyang L, Qi C, He H, Peng Y, Xiong W, Ren Y, Jiang H. Base-Promoted Formal [4 + 3] Annulation between 2-Fluorophenylacetylenes and Ketones: A Route to Benzoxepines. J Org Chem 2016; 81:912-9. [PMID: 26743591 DOI: 10.1021/acs.joc.5b02487] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The first base-promoted formal [4 + 3] annulation between 2-fluorophenylacetylenes and ketones has been disclosed. The reaction proceeds through a tandem α-vinylation of ketones followed by an intramolecular nucleophilic aromatic substitution (SNAr) reaction of the in situ generated β,γ-unsaturated ketone intermediates, providing a straightforward access to a wide range of functionalized benzoxepines in moderate to high yields. The transition-metal-free methodology featured a wide substrate scope, the use of easily available starting materials, and a high functional group tolerance.
Collapse
Affiliation(s)
- Lu Ouyang
- School of Chemistry and Chemical Engineering, State Key Lab of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
| | - Chaorong Qi
- School of Chemistry and Chemical Engineering, State Key Lab of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
| | - Haitao He
- School of Chemistry and Chemical Engineering, State Key Lab of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
| | - Youbin Peng
- School of Chemistry and Chemical Engineering, State Key Lab of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
| | - Wenfang Xiong
- School of Chemistry and Chemical Engineering, State Key Lab of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
| | - Yanwei Ren
- School of Chemistry and Chemical Engineering, State Key Lab of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
| | - Huanfeng Jiang
- School of Chemistry and Chemical Engineering, State Key Lab of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
| |
Collapse
|