1
|
Dhar T, Bera D, Chaudhuri T, Mukhopadhyay C. Metal and acid-free synthesis of acenaphthenone-2-ylidene ketones in PEG 400 and their radical nitration by TBN in water. Org Biomol Chem 2024. [PMID: 39254654 DOI: 10.1039/d4ob00963k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/11/2024]
Abstract
The synthesis of acenaphthenone-2-ylidene ketones has been developed using PEG 400 as a solvent under metal and acid-free conditions. Using TBN as a nitrating agent under atmospheric oxygen, nitration of acenaphthenone-2-ylidene ketones has been accomplished for the first time. Upon nitration, (E)-2-(2-oxo-2-phenylethylidene)acenaphthylen-1(2H)-one and alkyl (E)-2-(2-oxoacenaphthylen-1(2H)-ylidene)acetate give the diastereomer with the same geometry. The variety of substrates employed and low cost and non-toxicity of the chemicals used in this process demonstrate its important applicability. Another noteworthy aspect of the procedure is that, in contrast to previous procedures, it does not use HNO3 or metal nitrates during the transformation.
Collapse
Affiliation(s)
- Tiyasa Dhar
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata-700009, India.
| | - Debasish Bera
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata-700009, India.
| | - Tandrima Chaudhuri
- Department of Chemistry, Dr. Bhupendranath Dutta Smriti Mahavidyalaya, Burdwan 713407, India
| | - Chhanda Mukhopadhyay
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata-700009, India.
| |
Collapse
|
2
|
Li F, Yang Q, Li H, Cui YZ, Wang YB. Silver(I)-Promoted [3 + 3]-Cycloaddition of 2-(2-Enynyl)quinolines with N'-(2-Alkynylbenzylidene)hydrazides. J Org Chem 2024; 89:11567-11575. [PMID: 39087584 DOI: 10.1021/acs.joc.4c01264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
An effective and straightforward Ag(I)-mediated annulation of 2-(2-enynyl)quinolines and N'-(2-alkynylbenzylidene)hydrazides was developed, forging various synthetically challenging 17bH-isoquinolino[2'',1'':1',6']pyridazino[4',5':3,4]pyrrolo[1,2-a]quinolines, including different nitrogen-containing fused rings, in moderate to excellent yields. This one-pot cycloaddition strategy features exclusive regioselectivity, high atom economy, and broad substrate scope under mild conditions. The practicality and reliability of this cycloaddition reaction was demonstrated by a successful scale-up synthesis.
Collapse
Affiliation(s)
- Feng Li
- College of Chemistry and Molecular Science, Henan University, Kaifeng 475004, China
| | - Qing Yang
- College of Chemistry and Molecular Science, Henan University, Kaifeng 475004, China
| | - He Li
- College of Chemistry and Molecular Science, Henan University, Kaifeng 475004, China
| | - Yan-Zhao Cui
- College of Chemistry and Molecular Science, Henan University, Kaifeng 475004, China
| | - Yan-Bo Wang
- College of Chemistry and Molecular Science, Henan University, Kaifeng 475004, China
| |
Collapse
|
3
|
Zhao L, Liu F, Zhuang Y, Shen M, Xue J, Wang X, Zhang Y, Rong ZQ. CoH-catalyzed asymmetric remote hydroalkylation of heterocyclic alkenes: a rapid approach to chiral five-membered S- and O-heterocycles. Chem Sci 2024; 15:8888-8895. [PMID: 38873055 PMCID: PMC11168172 DOI: 10.1039/d4sc01149j] [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: 02/18/2024] [Accepted: 05/07/2024] [Indexed: 06/15/2024] Open
Abstract
Saturated heterocycles, which incorporate S and O heteroatoms, serve as fundamental frameworks in a diverse array of natural products, bioactive compounds, and pharmaceuticals. Herein, we describe a unique cobalt-catalyzed approach integrated with a desymmetrization strategy, facilitating precise and enantioselective remote hydroalkylation of unactivated heterocyclic alkenes. This method delivers hydroalkylation products with high yields and excellent stereoselectivity, representing good efficiency in constructing alkyl chiral centers at remote C3-positions within five-membered S/O-heterocycles. Notably, the broad scope and good functional group tolerance of this asymmetric C(sp3)-C(sp3) coupling enhance its applicability.
Collapse
Affiliation(s)
- Lingzi Zhao
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Feipeng Liu
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Yan Zhuang
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Mengyang Shen
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Jing Xue
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Xuchao Wang
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Yuting Zhang
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Zi-Qiang Rong
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| |
Collapse
|
4
|
Zhang Y, Chen SS, Li KD, Huang HM. Cyclic Amine Synthesis via Catalytic Radical-Polar Crossover Cycloadditions. Angew Chem Int Ed Engl 2024; 63:e202401671. [PMID: 38418423 DOI: 10.1002/anie.202401671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 03/01/2024]
Abstract
The rapid assembly of valuable cyclic amine architectures in a single step from simple precursors has been recognized as an ideal platform in term of efficiency and sustainability. Although a vast number of studies regarding cyclic amine synthesis has been reported, new synthetic disconnection approaches are still high in demand. Herein, we report a catalytic radical-polar crossover cycloaddition to cyclic amine synthesis triggered from primary sulfonamide under photoredox condition. This newly developed disconnection, comparable to established synthetic approaches, will allow to construct β, β-disubstituted cyclic amine and β-monosubstituted cyclic amine derivatives efficiently. This study highlights the unique utility of primary sulfonamide as a bifunctional reagent, which acts as a radical precursor and a nucleophile. The open-shell methodology demonstrates broad tolerance to various functional groups, drug derivatives and natural products in an economically and sustainable fashion.
Collapse
Affiliation(s)
- Ying Zhang
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, 201210, Shanghai, China
| | - Shu-Sheng Chen
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, 201210, Shanghai, China
| | - Kai-Dian Li
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, 201210, Shanghai, China
| | - Huan-Ming Huang
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, 201210, Shanghai, China
| |
Collapse
|
5
|
Zhang Z, Sun Y, Gong Y, Tang DL, Luo H, Zhao ZP, Zhou F, Wang X, Zhou J. Enantioselective propargylic amination and related tandem sequences to α-tertiary ethynylamines and azacycles. Nat Chem 2024; 16:521-532. [PMID: 38504025 DOI: 10.1038/s41557-024-01479-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 02/19/2024] [Indexed: 03/21/2024]
Abstract
Chiral α-tertiary amines and related azacycles are sought-after compounds for drug development. Despite progress in the catalytic asymmetric construction of aza-quaternary stereocentres, enantioselective synthesis of multifunctional α-tertiary amines remains underdeveloped. Enantioenriched α-disubstituted α-ethynylamines are attractive synthons for constructing chiral α-tertiary amines and azacycles, but methods for their catalytic enantioselective synthesis need to be expanded. Here we describe an enantioselective asymmetric Cu(I)-catalysed propargylic amination (ACPA) of simple ketone-derived propargylic carbonates to give both α-dialkylated and α-alkyl-α-aryl α-tertiary ethynylamines. Sterically confined pyridinebisoxazoline (PYBOX) ligands, with a C4 shielding group and relaying groups, play a key role in achieving excellent enantioselectivity. The syntheses of quaternary 2,5-dihydropyrroles, dihydroquinines, dihydrobenzoquinolines and dihydroquinolino[1,2-α]quinolines are reported, and the synthetic value is further demonstrated by the enantioselective catalytic total synthesis of a selective multi-target β-secretase inhibitor. Enantioselective Cu-catalysed propargylic substitutions with O- and C-centred nucleophiles are also realized, further demonstrating the potential of the PYBOX ligand.
Collapse
Affiliation(s)
- Zheng Zhang
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Ying Sun
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Yi Gong
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Da-Liang Tang
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Hui Luo
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Zhi-Peng Zhao
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Feng Zhou
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China.
| | - Xin Wang
- College of Chemistry, Sichuan University, Chengdu, China.
| | - Jian Zhou
- State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China.
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng, China.
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai, P. R. China.
| |
Collapse
|
6
|
Liang D, Zhou QQ, Xuan J. Multiple-cycle photochemical cascade reactions. Org Biomol Chem 2024; 22:2156-2174. [PMID: 38385507 DOI: 10.1039/d4ob00071d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Cascade reactions represent an efficient and economical synthetic approach, enabling the rapid synthesis of a wide array of structurally complex organic compounds. These compounds, previously inaccessible, can now be synthesized in a remarkably limited number of steps. Concurrently, the photochemical reactions of organic molecules have gained prominence as a potent strategy for accessing a diverse range of radical species and intermediates. This is achieved in a controlled manner under mild conditions. Owing to the relentless endeavors of chemists, significant strides have been made in the realm of photochemical cascade reactions. These advancements have facilitated the synthesis of novel molecular structures with high complexity, structures that are typically challenging to generate under thermal conditions. In this review, we comprehensively summarize and underscore the recent pivotal advancements in visible-light-induced cascade reactions. Our focus is on the elucidation of multiple photochemical catalytic cycles, emphasizing the catalytic activation modes and the types of reactions involved.
Collapse
Affiliation(s)
- Dong Liang
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, China
| | - Quan-Quan Zhou
- Institute of Advanced Materials, Jiangxi Normal University, Nanchang 330022, China.
| | - Jun Xuan
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials and Key Laboratory of Functional Inorganic Materials of Anhui Province, College of Chemistry & Chemical Engineering, Anhui University, Hefei, Anhui 230601, People's Republic of China.
| |
Collapse
|
7
|
Zhao Y, Li X, Deng WH, Wu B, Liao RZ, Zhou YG. Dearomatization of [2.2]Paracyclophane-Derived N-Sulfonylimines through Cyclopropanation with Sulfur Ylides. J Org Chem 2024; 89:321-329. [PMID: 38086000 DOI: 10.1021/acs.joc.3c02052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
An unprecedented dearomatization of [2.2]paracyclophane-derived cyclic N-sulfonylimines was conducted through cyclopropanation with sulfur ylides, giving a series of dearomative cyclopropanes with good yields. DFT calculations suggested that the dearomatization was attributed to the relatively weak aromaticity of [2.2]paracyclophane derivatives that resulted from the effect of the unique [2.2]paracyclophane skeleton and the electron-withdrawing N-sulfonyl group. Some downstream elaborations of the products were demonstrated.
Collapse
Affiliation(s)
- Yang Zhao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, P. R. China
| | - Xiang Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, P. R. China
| | - Wen-Hao Deng
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 116024, P. R. China
| | - Bo Wu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, P. R. China
| | - Rong-Zhen Liao
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 116024, P. R. China
| | - Yong-Gui Zhou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, P. R. China
| |
Collapse
|
8
|
Mali G, Kumar Yadav V, Priya H, Shukla M, Pandey P, Kumar A, Paranjothy M, Bhattacharyya S, Erande RD. The rapid construction and biological evaluation of densely substituted pyrrolo[1,2- a]indoles via a BF 3·OEt 2-assisted cascade approach. Org Biomol Chem 2023. [PMID: 38038241 DOI: 10.1039/d3ob01457f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Lewis-acid cascade reactions promoted by BF3·OEt2 are reported for the synthesis of highly substituted pyrrolo[1,2-a]indoles and congeners of benzofuro[2,3-b]indoles. These reactions are highly regio- and diastereoselective towards generating up to five contiguous stereogenic centers, including two vicinal quaternary centers. Furthermore, an established cascade approach and the mechanism proposed herein are well supported by quantum chemistry calculations. In addition, a self-dimerization intermediate was trapped and isolated to establish a strategy for potential access to both pyrrolo and benzo indole derivatives, leaving sufficient freedom for broadening. Furthermore, in-silico molecular docking and all atomistic molecular dynamic (MD) simulation analysis suggests that the synthesized pyrrolo[1,2-a]indole derivatives stably bind at the active site of the mycobacterial secreted tyrosine phosphatase B (MptpB) enzyme, an emerging anti-mycobacterial drug target. Deep learning-based affinity predictions and MMPBGBSA-based energy calculations of the docked poses are presented herein.
Collapse
Affiliation(s)
- Ghanshyam Mali
- Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur 342037, Rajasthan, India.
| | - Vinay Kumar Yadav
- Department of Bioscience & Bioengineering, Indian Institute of Technology Jodhpur, Jodhpur 342037, Rajasthan, India
| | - Himani Priya
- Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur 342037, Rajasthan, India.
| | - Manjari Shukla
- Department of Bioscience & Bioengineering, Indian Institute of Technology Jodhpur, Jodhpur 342037, Rajasthan, India
| | - Peeyush Pandey
- Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur 342037, Rajasthan, India.
| | - Akhilesh Kumar
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Manikandan Paranjothy
- Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur 342037, Rajasthan, India.
| | - Sudipta Bhattacharyya
- Department of Bioscience & Bioengineering, Indian Institute of Technology Jodhpur, Jodhpur 342037, Rajasthan, India
| | - Rohan D Erande
- Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur 342037, Rajasthan, India.
| |
Collapse
|
9
|
Zhu S, Sun Y, Pan Y, Chen X, Yu H, Han Y, Yan C, Shi Y, Hou H. Visible-Light-Mediated Radical Hydroalkylative Cyclization of 1,6-Enynes. J Org Chem 2023; 88:16639-16643. [PMID: 37976542 DOI: 10.1021/acs.joc.3c01433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
A radical hydroalkylative cyclization approach accessing various alkenyl heterocyclic compounds was developed using dimethyl malonate and 1,6-enynes in the presence of visible-light photoredox catalysis. The use of Ir(dtbbpy)(ppy)2PF6 as a photosensitizer enables carbon atom radical formation and initiates the cascade cyclization reaction under mild conditions.
Collapse
Affiliation(s)
- Shaoqun Zhu
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Yuejie Sun
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Yingjie Pan
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Xiaoyun Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212005, China
| | - Huaguang Yu
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, College of Optoelectronic Materials and Technology, Jianghan University, Wuhan 430056, China
| | - Ying Han
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Chaoguo Yan
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Yaocheng Shi
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Hong Hou
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| |
Collapse
|
10
|
Liu T, Zhou Y, Tang J, Wang C. Recent advancements in iodide/phosphine-mediated photoredox radical reactions. Beilstein J Org Chem 2023; 19:1785-1803. [PMID: 38033449 PMCID: PMC10682514 DOI: 10.3762/bjoc.19.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 11/10/2023] [Indexed: 12/02/2023] Open
Abstract
Photoredox catalysis plays a crucial role in contemporary synthetic organic chemistry. Since the groundbreaking work of Shang and Fu on photocatalytic decarboxylative alkylations in 2019, a wide range of organic transformations, such as alkylation, alkenylation, cyclization, amination, iodination, and monofluoromethylation, have been progressively achieved using a combination of iodide and PPh3. In this review, we primarily focus on summarizing the recent advancements in inexpensive and readily available iodide/phosphine-mediated photoredox radical transformations.
Collapse
Affiliation(s)
- Tinglan Liu
- Department of Chemistry, Jinan University, Guangzhou 511443, P. R. China
| | - Yu Zhou
- UNITEST, Weifang 261000, P. R. China
| | - Junhong Tang
- Department of Chemistry, Jinan University, Guangzhou 511443, P. R. China
| | - Chengming Wang
- Department of Chemistry, Jinan University, Guangzhou 511443, P. R. China
| |
Collapse
|
11
|
Huang X, You H, Fang F, Wang F, Liu ZQ. A free radical nitration of olefins with NaNO 2/I 2O 5. Chem Commun (Camb) 2023; 59:13352-13354. [PMID: 37872833 DOI: 10.1039/d3cc04275h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
We demonstrated herein an I2O5-mediated radical nitration of olefins with NaNO2. A variety of (E)-nitroolefins can be synthesized in high yields and chemoselectivity.
Collapse
Affiliation(s)
- Xuan Huang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China.
| | - Huichao You
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China.
| | - Fang Fang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China.
| | - Fan Wang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China.
| | - Zhong-Quan Liu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China.
| |
Collapse
|
12
|
Han Z, Xue Y, Li X, Hu X, Dong XQ, Sun J, Huang H. Studies on the [4 + 2] cycloaddition and allylic substitution of indole-fused zwitterionic π-allylpalladium. Org Biomol Chem 2023; 21:8162-8169. [PMID: 37782136 DOI: 10.1039/d3ob01451g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
The zwitterionic π-allylpalladium species, also known as dipoles, are important synthons widely used in various reactions including cycloaddition and allylic substitution. This study reported the development of a new indole-fused zwitterionic π-allylpalladium precursor compound and its application in [4 + 2] cycloaddition and allylic substitution reactions. As a result, the synthesis of pyrrolo[3,2,1-ij]quinazolin-3-one and 7-vinyl indole compounds was achieved with moderate to good yields. Notably, the allylic substitution reaction exhibited excellent regio- and stereoselectivity.
Collapse
Affiliation(s)
- Zhengyu Han
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.
- Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Yu Xue
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.
| | - Xiang Li
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.
| | - Xinzhe Hu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.
| | - Xiu-Qin Dong
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, Wuhan, Hubei, 430072, China
| | - Jianwei Sun
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.
| |
Collapse
|
13
|
Teixeira WKO, de Albuquerque DY, Zukerman-Schpector J, Seckler D, Rampon DS, Schwab RS. Copper-Mediated Intramolecular Interrupted CuAAC Selanylation. J Org Chem 2023. [PMID: 37467464 DOI: 10.1021/acs.joc.2c02893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
We, herein, describe a copper-mediated domino CuAAC intramolecular selanylation for the synthesis of unprecedented fused benzo[4,5][1,3]selenazolo[3,2-c][1,2,3]triazoles from 1,2-bis(2-azidoaryl)diselenides and terminal alkynes under microwave irradiation. This is the seminal method for the synthesis of these fused heterocycles, and it proceeds under mild conditions, tolerates several functional groups, and can be carried out using environmentally benign solvents such as dimethyl carbonate. This transformation has been successfully extended to TMS-protected alkynes and to bioactive alkynes. A plausible reaction mechanism is proposed based on several control experiments and previous reports.
Collapse
Affiliation(s)
- Wystan K O Teixeira
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem), Departamento de Química, Universidade Federal de São Carlos - UFSCar, Rodovia Washington Luís, km 235 - SP-310, São Carlos 13565-905, São Paulo, Brazil
| | - Danilo Yano de Albuquerque
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem), Departamento de Química, Universidade Federal de São Carlos - UFSCar, Rodovia Washington Luís, km 235 - SP-310, São Carlos 13565-905, São Paulo, Brazil
| | - Julio Zukerman-Schpector
- Departamento de Química, Universidade Federal de São Carlos - UFSCar, Rodovia Washington Luís, km 235 - SP-310, São Carlos 13565-905, São Paulo, Brazil
| | - Diego Seckler
- Laboratory of Polymers and Catalysis (LaPoCa), Departamento de Química, Universidade Federal do Paraná - UFPR, P. O. Box 19061, Curitiba 81531-980, Paraná, Brazil
| | - Daniel S Rampon
- Laboratory of Polymers and Catalysis (LaPoCa), Departamento de Química, Universidade Federal do Paraná - UFPR, P. O. Box 19061, Curitiba 81531-980, Paraná, Brazil
| | - Ricardo S Schwab
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem), Departamento de Química, Universidade Federal de São Carlos - UFSCar, Rodovia Washington Luís, km 235 - SP-310, São Carlos 13565-905, São Paulo, Brazil
| |
Collapse
|
14
|
Saquib M, Ahamad S, Khan MF, Khan MI, Hussain MK. An ultrasound assisted, ionic liquid-molecular iodine synergy driven efficient green synthesis of pyrrolobenzodiazepine-triazole hybrids as potential anticancer agents. Front Pharmacol 2023; 14:1168566. [PMID: 37214464 PMCID: PMC10196072 DOI: 10.3389/fphar.2023.1168566] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 04/17/2023] [Indexed: 05/24/2023] Open
Abstract
Herein, we report an efficient and eco-friendly, ultrasound assisted synthetic strategy for the construction of diversified pyrrolobenzodiazepine-triazole hybrids, which are potentially pharmaceutically important scaffolds, via a domino reaction involving intermolecular electrophilic substitution followed by intramolecular Huisgen 1,3-dipolar azide-alkyne cycloaddition. The USP of the reported protocol is the use of benign and inexpensive, recyclable molecular iodine-ionic liquid synergistic catalytic system cum reaction media for achieving the synthesis. The other salient features of this method are the use of mild reaction conditions, high yield and atom economy, operational simplicity, broad substrate scope and easy workup and purification. All the synthesized compounds were evaluated for in vitro anti-proliferative activity against various cancer cell lines. From among the synthesized title compounds, 9,9-dimethyl-8-phenyl-9H-benzo [b]pyrrolo [1,2-d][1,2,3]triazolo[5,1-g][1,4]diazepine (7) was found most to be the most active compound exhibiting IC50 value of 6.60, 5.45, 7.85, 11.21, 12.24, 10.12, and 11.32 µM against MCF-7, MDA-MB-231, HeLa, SKOV-3, A549, HCT-116 and DLD-1 cell lines, respectively. Further the compounds were found to be non-toxic against normal human embryonic kidney (HEK-293) cell line.
Collapse
Affiliation(s)
- Mohammad Saquib
- Department of Chemistry, University of Allahabad, Prayagraj, Uttar Pradesh, India
| | - Shakir Ahamad
- Department of Chemistry, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Mohammad Faheem Khan
- Department of Biotechnology, Era’s Lucknow Medical College, Era University, Lucknow, Uttar Pradesh, India
| | - Mohammad Imran Khan
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Centre of Artificial Intelligence in Precision Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohd Kamil Hussain
- Department of Chemistry, Govt. Raza P.G. College, Rampur, Uttar Pradesh, India
- M.J.P Rohilkahand University, Bareilly, Uttar Pradesh, India
| |
Collapse
|
15
|
Song Y, Wu C, Zhang J, Zhang W, Qin X, Yang Y, Kang G, Jiang J, Liu H. Switchable multipath cascade cyclization to synthesize bicyclic lactams and succinimides via chemodivergent reaction. Chem Commun (Camb) 2023; 59:3313-3316. [PMID: 36852458 DOI: 10.1039/d2cc06841a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Herein, a novel switchable multipath cascade cyclization via chemodivergent reaction between readily available ketoamides and deconjugated butenolides was developed to efficiently synthesize γ-lactone fused γ-lactams and succinimide fused hemiketals. The Aldol/aza-Michael reaction and Aldol/imidation/hemiketalization reaction were enabled by catalytic amounts of two bases, namely tetramethyl guanidine and NaOAc. A wide range of substrate scope with diverse functional group compatibility was demonstrated to deliver the corresponding products with good yield and excellent diastereoselectivity (>60 examples).
Collapse
Affiliation(s)
- Yimei Song
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, China.
| | - Chaofei Wu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, China.
| | - Jinhai Zhang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, China.
| | - Wenhai Zhang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, China.
| | - Xin Qin
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, China.
| | - Yixiao Yang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, China.
| | - Guowei Kang
- Department of Chemistry, The Scripps Research Institute, North Torrey Pines Road, La Jolla 10550, USA.
| | - Jun Jiang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, China.
| | - Hongxin Liu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, China. .,Institute of New Materials & Industrial Technology, Wenzhou University, Wenzhou, 325035, China.
| |
Collapse
|
16
|
Elinson MN, Vereshchagin AN, Ryzhkova YE, Karpenko KA, Ryzhkov FV, Egorov MP. Electrocatalytic Cascade Selective Approach to 3-Aryl-2' H,3 H,4 H-Spiro{Furo[2,3- с]Chromene-2,5'-Pyrimidine}-2',4,4',6'(1' H,3' H)Tetraones and Its Automatic Screening Docking Studies. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2149568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Affiliation(s)
- Michail N. Elinson
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
| | - Anatoly N. Vereshchagin
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
| | - Yuliya E. Ryzhkova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
| | - Kirill A. Karpenko
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
| | - Fedor V. Ryzhkov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
| | - Mikhail P. Egorov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
| |
Collapse
|
17
|
Liu L, Dai M, Song L, Chen H, Bian M, Gao Y, Liu Z. Water‐assisted, Highly‐selective and Rapid Synthesis of Cyclopropane Derivatives by a [2+1] Annulation Reaction. ChemistrySelect 2022. [DOI: 10.1002/slct.202203870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Li‐Jia Liu
- School of Chemical and Environmental Engineering Shanghai Institute of Technology 100 Haiquan Road Shanghai 201418 P. R. China
| | - Ming Dai
- School of Chemical and Environmental Engineering Shanghai Institute of Technology 100 Haiquan Road Shanghai 201418 P. R. China
| | - Lei Song
- School of Chemical and Environmental Engineering Shanghai Institute of Technology 100 Haiquan Road Shanghai 201418 P. R. China
| | - Hui‐Yu Chen
- School of Chemical and Environmental Engineering Shanghai Institute of Technology 100 Haiquan Road Shanghai 201418 P. R. China
| | - Ming Bian
- School of Chemical and Environmental Engineering Shanghai Institute of Technology 100 Haiquan Road Shanghai 201418 P. R. China
| | - Yu‐Ning Gao
- School of Chemical and Environmental Engineering Shanghai Institute of Technology 100 Haiquan Road Shanghai 201418 P. R. China
| | - Zhen‐Jiang Liu
- School of Chemical and Environmental Engineering Shanghai Institute of Technology 100 Haiquan Road Shanghai 201418 P. R. China
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| |
Collapse
|
18
|
Zeng FL, Zhang ZY, Yin PC, Cheng FK, Chen XL, Qu LB, Cao ZY, Yu B. Visible-Light-Induced Cascade Cyclization of 3-(2-(Ethynyl)phenyl)quinazolinones to Phosphorylated Quinolino[2,1- b]quinazolinones. Org Lett 2022; 24:7912-7917. [PMID: 36269864 DOI: 10.1021/acs.orglett.2c02930] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
3-(2-(Ethynyl)phenyl)quinazolinones were designed and synthesized as a class of novel and efficient skeletons for phosphorylation/cyclization reactions. Under visible light irradiation, a series of phosphorylated quinolino[2,1-b]quinazolinones (35 examples, up to 87% yield) were first synthesized from 3-(2-(ethynyl)phenyl)quinazolinones and diarylphosphine oxides by using 4CzIPN as a photocatalyst under mild conditions. This reaction was also applicable under sunlight irradiation. Moreover, the reaction efficiency could be significantly improved under continuous-flow conditions.
Collapse
Affiliation(s)
- Fan-Lin Zeng
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Zhi-Yang Zhang
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Peng-Cheng Yin
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Fu-Kun Cheng
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Xiao-Lan Chen
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Ling-Bo Qu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Zhong-Yan Cao
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Bing Yu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| |
Collapse
|
19
|
Hu L, Zhang D, Huang X, Liu F, Li X, Teng M, Huang G. Metal‐Free Arylsulfonyl Radical Triggered Cascade Cyclization of
Phenyl‐Linked
1,
6‐Enynes
: Synthesis of 2,
3‐Dihydro‐1
H
‐indenes and 10a,
11‐Dihydro‐10
H
‐benzo[b]fluorines. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lin‐Ping Hu
- School of Chemistry and Chemical Engineering Yunnan Normal University Kunming Yunnan 650500 China
| | - De‐Run Zhang
- School of Chemistry and Chemical Engineering Yunnan Normal University Kunming Yunnan 650500 China
| | - Xiao‐Hong Huang
- School of Chemistry and Chemical Engineering Yunnan Normal University Kunming Yunnan 650500 China
| | - Feng‐Lin Liu
- School of Chemistry and Chemical Engineering Yunnan Normal University Kunming Yunnan 650500 China
| | - Xia Li
- Department of Library Yunnan Normal University Kunming Yunnan 650500 China
| | - Ming‐Yu Teng
- School of Chemistry and Chemical Engineering Yunnan Normal University Kunming Yunnan 650500 China
| | - Guo‐Li Huang
- School of Chemistry and Chemical Engineering Yunnan Normal University Kunming Yunnan 650500 China
| |
Collapse
|
20
|
Sun K, Zhang Y, Tian M, Wang Z, Zhao D, Wang S, Tang S, Zhang Z. Radical annulation of a designed diene system: access to nitro-benzo[ b]azepines. Chem Commun (Camb) 2022; 58:9658-9661. [PMID: 35943410 DOI: 10.1039/d2cc02688k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we describe a novel O2N˙-triggered ordered addition 7-endo cyclization reaction with excellent chemo- and regioselectivity. With such a strategy, structurally diverse nitro-benzo[b]azepines were prepared with 28 examples. Large-scale operation and handy N-Ts and N-Cbz deprotection reveal the promising utility of this methodology. Mechanistic studies suggest that the reaction proceeds through a radical pathway.
Collapse
Affiliation(s)
- Kai Sun
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China.
| | - Yan Zhang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China.
| | - Miao Tian
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China.
| | - Zhichuan Wang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China.
| | - Dongyang Zhao
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China.
| | - Shilong Wang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China.
| | - Shi Tang
- College of Chemistry and Chemical Engineering, Jishou University, Jishou, 416000, China
| | - Zhen Zhang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China.
| |
Collapse
|
21
|
Dhara HN, Rakshit A, Alam T, Patel BK. Metal-catalyzed reactions of organic nitriles and boronic acids to access diverse functionality. Org Biomol Chem 2022; 20:4243-4277. [PMID: 35552581 DOI: 10.1039/d2ob00288d] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The nitrile or cyano (-CN) group is one of the most appreciated and effective functional groups in organic synthesis, having a polar unsaturated C-N triple bond. Despite sufficient stability and being intrinsically inert, the nitrile group can be easily transformed into many other functional groups, such as amines, carboxylic acids, ketones, etc. which makes it a vital group in organic synthesis. On the other hand, despite several boronic acids having a low level of genotoxicity, they have found wide applicability in the field of organic synthesis, especially in transition metal-catalyzed cross-coupling reactions. Recently, transition-metal-catalyzed cascade additions or addition/cyclization processes of boronic acids to the nitrile group open up exciting and useful strategies to prepare a variety of functional molecules through the formation of C-C, C-N and CO bonds. Boronic acids can be added to the cyano functionality through catalytic carbometallation or through a radical cascade process to provide newer pathways for the rapid construction of various important acyclic ketones or amides, carbamidines, carbocycles and N,O-heterocycles. The present review focuses on various transition-metal-catalyzed additions of boronic acids via carbometallation or radical cascade processes using the cyano group as an acceptor.
Collapse
Affiliation(s)
- Hirendra Nath Dhara
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Amitava Rakshit
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Tipu Alam
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Bhisma K Patel
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| |
Collapse
|
22
|
Zhang C, Chen Q, Wang L, Sun Q, Yang Y, Rudolph M, Rominger F, Hashmi ASK. Practical and modular construction of benzo[c]phenanthridine compounds. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1273-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractHere, we describe a general and modular strategy for the rapid assembly of benzo[c]phenanthridine (BCP) derivatives using homogeneous gold catalysis. Notably, in contrast to traditional methods based on the specially preformed substrates that have an inherent preference for the formation of this class of compounds with limited flexibility, this protocol is achieved via a selectively intramolecular cascade of a diazo-tethered alkyne and subsequently an intermolecular cyclization with a nitrile to facilitate the successive C-N and C-C bonds formation. This methodology uses readily available nitriles as the nitrogen source to deliver the products in good yield with excellent functional group compatibility. A preliminary anti-tumor activity study of these generated products exhibits high anticancer potency against five tumor cell lines, including HeLa, Mel624, SW-480, 8505C, LAN-1. Besides, we report a catalyst-controlled intermolecular cycloaddition/intramolecular insertion of the substrate with a fulvene to provide fused polycarbocycles containing a seven-membered ring.
Collapse
|
23
|
Roy S, Paul H, Chatterjee I. Light‐Mediated Aminocatalysis: The Dual‐Catalytic Ability Enabling New Enantioselective Route. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Sourav Roy
- IIT Ropar: Indian Institute of Technology Ropar Chemistry INDIA
| | - Hrishikesh Paul
- IIT Ropar: Indian Institute of Technology Ropar Chemistry INDIA
| | - Indranil Chatterjee
- Indian Institute of Technology, Ropar Chemistry Nangal Road 140001 Rupnagar INDIA
| |
Collapse
|
24
|
Tao J, Li C, Zhou K, Huan Y, Yuan Y, Liu A, Zhang F, Qi C, Shen Z. An Efficient Strategy for Synthesis of New Functionalized Furo[3,2‐
c
]pyridin‐4(
5
H
)‐one Derivatives under Mild Conditions. J Heterocycl Chem 2022. [DOI: 10.1002/jhet.4502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jiahao Tao
- School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province China
| | - Chunmei Li
- School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province China
- College of Chemical Engineering Zhejiang University of Technology Hangzhou China
| | - Kaini Zhou
- School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province China
| | - Yongcan Huan
- School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province China
| | - Yongjie Yuan
- School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province China
| | - Ali Liu
- School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province China
| | - Furen Zhang
- School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province China
| | - Chenze Qi
- School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province China
| | - Zhenlu Shen
- College of Chemical Engineering Zhejiang University of Technology Hangzhou China
| |
Collapse
|
25
|
Reddy SR, Jayakumar J. Cu-Catalysed tandem reactions for building poly hetero atom heterocycles-green chemistry tool. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2021-0232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Of late, regio-selective tandem reactions are given much attention due to the formation of several multiple bonds in a single synthetic operation, avoids altering the reaction conditions, isolation of the intermediates during the reaction, reduces the production of toxic waste to the environment and can produce highly complex organic molecules with desired selectivity. Though, it requires the well-built knowledge for optimization of the process, it permits to make the complex organic molecules with least number of steps, and it has eventually made great interest and inspiration to the upcoming organic chemists. Presentation of current book chapter presents the Cu-Catalysed tandem reactions for building poly hetero atom heterocyclic compounds via green approach.
Collapse
Affiliation(s)
| | - Jyothylakshmi Jayakumar
- Department of Chemistry , Vellore Institute of Technology , Vellore , Tamil Nadu , 632014 , India
| |
Collapse
|
26
|
Liu M, Xie L, Hou L, Lin L, Feng X. Catalytic asymmetric transformation of nitrones and allenes to dihydropyridoindoles via chiral N, N'-dioxide/cobalt(II) catalysis. Chem Commun (Camb) 2022; 58:5482-5485. [PMID: 35416211 DOI: 10.1039/d2cc01263d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A chiral N,N'-dioxide/cobalt(II) complex catalytic system is developed to promote the multistep cascade reaction of α,β-unsaturated-N-aryl nitrones with allenes, giving a variety of chiral dihydropyridoindoles in moderate to good yields with excellent dr and ee values. Mechanistic studies support a [3+2] cycloaddition/[3,3]-rearrangement/retro-Mannich process.
Collapse
Affiliation(s)
- Mohuizi Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Lihua Xie
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Liuzhen Hou
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| |
Collapse
|
27
|
Zhang JL, Ma R, Zhao HH, Xu PF. Enantioselective construction of spiro-tetrahydroquinoline scaffolds through asymmetric catalytic cascade reactions. Chem Commun (Camb) 2022; 58:3493-3496. [PMID: 35191451 DOI: 10.1039/d2cc00502f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
An efficient and concise strategy has been successfully developed for merging spiro-tetrahydroquinoline with spiro-benzofuranone into a single new skeleton through asymmetric catalytic cascade reactions catalyzed by quinine-derived chiral bifunctional squaramide organocatalysts. In this approach, differently substituted spiro-tetrahydroquinoline derivatives were smoothly obtained with high yields, and excellent diastereoselectivities and enantioselectivities (up to 99% yield, up to >20 : 1 dr, up to >99% ee, 40 examples) under mild reaction conditions.
Collapse
Affiliation(s)
- Jia-Lu Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Rui Ma
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Huan-Huan Zhao
- 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. .,State Key Laboratory of Veterinary Etiological Biology, College of Veterinary Medicine, Lanzhou University, Lanzhou 730000, P. R. China
| |
Collapse
|
28
|
Zhao ZW, Ran YS, Hou YJ, Chen X, Ding XL, Zhang C, Li YM. Free Radical Cascade Carbochloromethylations of Activated Alkenes. J Org Chem 2022; 87:4183-4194. [PMID: 35234480 DOI: 10.1021/acs.joc.1c03024] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Free radical carbochloromethylations of ortho-cyanoarylacrylamides and N-(arylsulfonyl)acrylamides have been developed by employing simple alkyl chlorides as the chloromethyl source. The transformations are characterized by wide functional group compatibility and utilizing readily available reagents, thus providing efficient methods for constructing polychloromethyl-substituted quinoline-2,4-diones and α-aryl-β-polychloromethylated amides.
Collapse
Affiliation(s)
- Zhi-Wei Zhao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Yu-Song Ran
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Yu-Jian Hou
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Xin Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Xue-Ling Ding
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Cui Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Ya-Min Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| |
Collapse
|
29
|
Suri Babu U, Singam MKR, Kumar MN, Nanubolu JB, Sridhar Reddy M. Palladium-Catalyzed Carbo-Aminative Cyclization of 1,6-Enynes: Access to Napthyridinone Derivatives. Org Lett 2022; 24:1598-1603. [PMID: 35191708 DOI: 10.1021/acs.orglett.2c00088] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
1,6-Enynes have recently stimulated enormous attention toward paving the way to unique cascade cyclizations offering complex cyclic motifs from linear substrates. We describe herein a general approach to napthyridinones via the Pd-catalyzed annulation of 1,6-enynes with 2-iodoanilines. This protocol represents a rare carbo-aminative annulative cyclization via the 6-endo-trig mode, subduing the well-documented exo-trig/dig cyclizations. The regioselective aryl palladation of alkyne followed by Heck-type intramolecular coupling before isomerization were key in realizing this cascade.
Collapse
Affiliation(s)
- Undamatla Suri Babu
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.,Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| | - Maneesh Kumar Reddy Singam
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.,Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| | - Muniganti Naveen Kumar
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.,Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| | | | - Maddi Sridhar Reddy
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.,Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| |
Collapse
|
30
|
Lin J, Zhu Y, Cai W, Huang Y. Phosphine-Mediated Sequential [2+4]/[2+3] Annulation to Construct Pyrroloquinolines. Org Lett 2022; 24:1593-1597. [PMID: 35179034 DOI: 10.1021/acs.orglett.1c04388] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A domino [2+4]/[2+3] sequential annulation reaction of MBH carbonates with N-unprotected indoles has been developed to provide various pyrroloquinoline derivatives in ≤94% yield and 20:1 dr. The reaction could be either mediated by stoichiometric PCy3 or catalyzed by R3PO via PIII/PV═O redox cycling in the presence of phenylsilane. This method assembles polycyclic 1,7-fused indoles in one step diastereoselectively.
Collapse
Affiliation(s)
- Junhui Lin
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yannan Zhu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Wei Cai
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - You Huang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| |
Collapse
|
31
|
Yang QQ, Xiao WJ, He XY, Ma YH. [4+n] Annulation Reactions Using ortho-Chloromethyl Anilines as Aza-ortho-Quinone Methide Precursors. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1529-7739] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
AbstractAza-ortho-quinone methides are important reactive intermediates that have found broad applications in synthetic chemistry. Recently, 1,4-elimination of ortho-chloromethyl aniline derivatives has emerged as a novel, powerful and convenient method for aza-ortho-quinone methide generation. This review will highlight the recent applications of aza-ortho-quinone methide precursors in annulation reactions to access various biologically important nitrogen-containing heterocycles. The general mechanisms are briefly discussed as well.1 Introduction2 [4+n] Annulation Reactions Using ortho-Chloromethyl Anilines as Aza-ortho-Quinone Methide Precursors2.1 [4+2] Annulation Reactions2.2 [4+1] Annulation Reactions2.3 [4+3] Annulation Reactions3 Conclusion and Perspective
Collapse
Affiliation(s)
- Qing-Qing Yang
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University
| | - Wen-Jing Xiao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University
| | - Xiao-Yu He
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University
| | - Yu-Hong Ma
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University
| |
Collapse
|
32
|
Wang J, Hao W, Tu S, Jiang B. Engaging
Yne‐Allenes
in Cycloaddition Reactions: Recent Developments. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202100856] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jia‐Yin Wang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Wen‐Juan Hao
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Shu‐Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University Xuzhou 221116 P. R. China
| |
Collapse
|
33
|
Khan D, Sharma S, Shukla P. Microwave assisted L‐proline catalyzed
One‐Pot Three‐Component
Reaction for the synthesis of
4‐aminoaryl‐2‐phenyl‐2H
‐3‐nitrochromene hybrid via Domino
Michael‐Henry‐Michael
addition reaction. J Heterocycl Chem 2022. [DOI: 10.1002/jhet.4447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Danish Khan
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee Uttarakhand India
| | - Saurabh Sharma
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee Uttarakhand India
| | - Prakhar Shukla
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee Uttarakhand India
| |
Collapse
|
34
|
Zhou CF, Zhang YQ, Ling Y, Ming L, Xi X, Liu GQ, Zhang Y. Time-economical synthesis of selenofunctionalized heterocycles via I 2O 5-mediated selenylative heterocyclization. Org Biomol Chem 2022; 20:420-426. [PMID: 34913464 DOI: 10.1039/d1ob02196f] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A time-economical and robust synthesis of various selenofunctionalized heterocycles was accomplished via I2O5-mediated selenocyclizations of olefins with diselenides. Using this method, 116 selenomethyl-substituted heterocycles were synthesized with up to 97% isolated yield in minutes. Additional features of this new protocol include the use of an inorganic oxidant, mild conditions, and easy operation. Preliminary investigations suggest that the transformation operates through selenenyl iodide-induced electrophilic cyclization.
Collapse
Affiliation(s)
- Chen-Fan Zhou
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People's Republic of China.
| | - Yun-Qian Zhang
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People's Republic of China.
| | - Yong Ling
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People's Republic of China.
| | - Liang Ming
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People's Republic of China.
| | - Xia Xi
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People's Republic of China.
| | - Gong-Qing Liu
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People's Republic of China.
| | - Yanan Zhang
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, People's Republic of China.
| |
Collapse
|
35
|
Xiao Y, Jia Y, Huang J, Li X, Zhou Z, Zhang J, Jiang M, Zhou X, Jiang Z, Yang Z. Synthesis of SCF
3
‐Substituted Sulfonium Ylides from Sulfonium Salts or α‐Bromoacetic Esters. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yushan Xiao
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals School of Pharmaceutical Sciences Wuhan University Wuhan 430071 People's Republic of China
| | - Yimin Jia
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals School of Pharmaceutical Sciences Wuhan University Wuhan 430071 People's Republic of China
| | - Jinfeng Huang
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals School of Pharmaceutical Sciences Wuhan University Wuhan 430071 People's Republic of China
| | - Xiangyu Li
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals School of Pharmaceutical Sciences Wuhan University Wuhan 430071 People's Republic of China
| | - Zhiwen Zhou
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals School of Pharmaceutical Sciences Wuhan University Wuhan 430071 People's Republic of China
| | - Jing Zhang
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals School of Pharmaceutical Sciences Wuhan University Wuhan 430071 People's Republic of China
| | - Mou Jiang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics National Center for Magnetic Resonance in Wuhan Wuhan Institute of Physics and Mathematics Innovative Academy of Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430071 People's Republic of China
| | - Xin Zhou
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics National Center for Magnetic Resonance in Wuhan Wuhan Institute of Physics and Mathematics Innovative Academy of Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430071 People's Republic of China
| | - Zhong‐Xing Jiang
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals School of Pharmaceutical Sciences Wuhan University Wuhan 430071 People's Republic of China
| | - Zhigang Yang
- Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals School of Pharmaceutical Sciences Wuhan University Wuhan 430071 People's Republic of China
| |
Collapse
|
36
|
Agafonova A, Sakharov P, Smetanin I, Rostovskii NV, Khlebnikov AF, Novikov M. Stannyl radical-mediated synthesis of 6H-1,3-oxazin-6-ones from 2-acyloxyazirines or whether free radicals can open the azirine ring? Org Chem Front 2022. [DOI: 10.1039/d2qo00783e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A fundamentally new radical cascade reaction of 2-acyloxyazirines underlays an effective one-step method for the preparation of 5-hydroxy-6H-1,3-oxazin-6-ones from methyl 2-acyloxy-2H-azirine-2-carboxylates using Bu3SnH/ACHN system as a source of stannyl radicals....
Collapse
|
37
|
Zhang S, Dong S, Cheng X, Ye Z, Lin L, Zhu J, Gong L. Chiral polycyclic benzosultams from photocatalytic diastereo- and enantioselective benzylic C–H functionalization. Org Chem Front 2022. [DOI: 10.1039/d2qo01491b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Photocatalytic diastereo- and enantioselective C(sp3)–H functionalization/intramolecular cyclization reactions have been achieved, delivering optically active polycyclic benzosultams and fused tetrahydroisoquinolines.
Collapse
Affiliation(s)
- Shaonan Zhang
- Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Shicheng Dong
- Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xiuliang Cheng
- Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Ziqi Ye
- Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Lu Lin
- Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jun Zhu
- Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Lei Gong
- Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen 361005, China
| |
Collapse
|
38
|
Jiang S, Ma H, Yang R, Song XR, Xiao Q. Recent advances in the cascade reactions of enynols/diynols for the synthesis of carbo- and heterocycles. Org Chem Front 2022. [DOI: 10.1039/d2qo01154a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review summaries a view of the advances in the cascade reactions of enynols/diynols for the construction of carbo- and heterocycles.
Collapse
Affiliation(s)
- Shimin Jiang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Haojie Ma
- Key Laboratory of New Energy & New Functional Materials, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi, 716000, P. R. China
| | - Ruchun Yang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Xian-Rong Song
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Qiang Xiao
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| |
Collapse
|
39
|
Gao PP, Xiao WJ, Chen JR. Recent Progresses in Visible-Light-Driven Alkene Synthesis. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202208044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
40
|
Wang CY, Yu JX, Liu B, Zhang F, Wang ZQ, Xu ZF, Hu QY, Li JH. Metal-/solvent-free oxidative [4+2]/[3+2] annulation of 2-ethynylbenzaldehydes with arylalkenes: Facile synthesis of benzo[a]fluoren-5-ones. Org Chem Front 2022. [DOI: 10.1039/d1qo01888d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report here a DTBP-mediated oxidative [4+2]/[3+2] annulation between 2-alkynylbenzaldehydes and terminal arylalkenes enabled by aldehyde C(sp2)-H functionalization for assembling a range of benzo[a]fluoren-5-ones with high step-economy, simple operations under...
Collapse
|
41
|
Wu Z, Li X, Li T, Xiao T, Jiang Y, Qin G. Fe-catalyzed denitrative cyanoalkylation of nitroalkenes with cycloketone oxime esters via reductive C–C bond formation. Org Chem Front 2022. [DOI: 10.1039/d2qo00992g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
An iron catalyzed reductive denitrative cyanoalkylation of nitroalkenes with cycloketone oxime esters using Zn as the reductant has been successfully established in which the NO2 of nitroalkenes eventually acts as a leaving group.
Collapse
Affiliation(s)
- Zefeng Wu
- Faculty of Science, Kunming University of Science and Technology, 727 Jingming South Road, Chenggong District, Kunming, 650500, P. R. China
| | - Xiangxiang Li
- Faculty of Science, Kunming University of Science and Technology, 727 Jingming South Road, Chenggong District, Kunming, 650500, P. R. China
| | - Tao Li
- Faculty of Science, Kunming University of Science and Technology, 727 Jingming South Road, Chenggong District, Kunming, 650500, P. R. China
| | - Tiebo Xiao
- Faculty of Science, Kunming University of Science and Technology, 727 Jingming South Road, Chenggong District, Kunming, 650500, P. R. China
| | - Yubo Jiang
- Faculty of Science, Kunming University of Science and Technology, 727 Jingming South Road, Chenggong District, Kunming, 650500, P. R. China
| | - Guiping Qin
- Faculty of Science, Kunming University of Science and Technology, 727 Jingming South Road, Chenggong District, Kunming, 650500, P. R. China
| |
Collapse
|
42
|
Sun Z, Huang H, Wang Q, Huang C, Mao G, Deng GJ. Visible light-mediated radical-cascade addition/cyclization of arylacrylamides with aldehydes to form quaternary oxindoles at room temperature. Org Chem Front 2022. [DOI: 10.1039/d2qo00319h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The visible light-induced oxidative radical cascade coupling of N-arylacrylamides with aldehydes using bromide as the hydrogen atom transfer agent to synthesize functional oxindoles is described.
Collapse
Affiliation(s)
- Zhaozhao Sun
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, P. R. China
| | - Qiaolin Wang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Chunyan Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Guojiang Mao
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, P. R. China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, P. R. China
| |
Collapse
|
43
|
Li Y, Wang Y, Huang X, Shi Y, Tang Y, Jiao J, Li J, Xu S. Rapid Construction of Hexacyclic Indolines via the Ru(II)-Catalyzed C-H Activation Initiated Cascade Cyclization of Phenidones with Enynones. Org Lett 2021; 24:435-440. [PMID: 34928618 DOI: 10.1021/acs.orglett.1c04133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A highly efficient cascade cyclization of phenidones and enynones has been developed via a Ru(II)-catalyzed C-H activation initiated indole formation/Diels-Alder reaction/iminium ion cyclization sequence, which afforded hexacyclic indolines as single diastereomer in good to excellent yields with a broad substrate scope under mild conditions. The reaction features the simultaneous generation of five new chemical bonds and four new rings in one pot, providing a rapid and concise approach toward polycyclic indoline alkaloids and their analogues.
Collapse
Affiliation(s)
- Yang Li
- Department of Material Chemistry, School of Chemistry, and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Yongzhuang Wang
- Department of Material Chemistry, School of Chemistry, and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Xiaoli Huang
- Department of Material Chemistry, School of Chemistry, and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Yan Shi
- Department of Material Chemistry, School of Chemistry, and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Yuhai Tang
- Department of Material Chemistry, School of Chemistry, and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Jiao Jiao
- Department of Material Chemistry, School of Chemistry, and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Jing Li
- Department of Material Chemistry, School of Chemistry, and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Silong Xu
- Department of Material Chemistry, School of Chemistry, and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| |
Collapse
|
44
|
Xu GQ, Xu PF. Visible light organic photoredox catalytic cascade reactions. Chem Commun (Camb) 2021; 57:12914-12935. [PMID: 34782893 DOI: 10.1039/d1cc04883j] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Over the past years, impressive progress has been made in the development of organic photoredox catalytic cascade reactions without the participation of expensive and toxic transition metals under visible light irradiation. These transformations highly depend on the in situ generation of various radical species in the photoredox catalytic cycles. Numerous chemically and biomedically valuable building blocks have been synthesized through this efficient and sustainable protocol. In this review, we highlight the recent progress in this blooming area by presenting a series of new catalytic cascade reactions mediated by organic photoredox catalysts and describe their mechanisms and applications which have appeared in the recent literature.
Collapse
Affiliation(s)
- Guo-Qiang Xu
- 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. .,State Key Laboratory of Veterinary Etiological Biology, College of Veterinary Medicine, Lanzhou University, Lanzhou 730000, P. R. China
| |
Collapse
|
45
|
Dutt S, Tyagi V. Biocatalytic synthesis of quinoline derivatives via α-amylase catalysed one-pot domino aza-Michael/Aldol/aromatization reactions. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
46
|
Gold(I)-Catalyzed Tandem Synthesis of Polycyclic Dihydroquinazolinones. Catalysts 2021. [DOI: 10.3390/catal11121436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A gold-catalyzed cascade process for the synthesis of dihydroquinazolinone scaffolds was developed. A series of gold catalysts were screened for this tandem transformation, and the (PPh3)AuCl/AgOTf catalyst combination was found to be the best catalyst system. This method is characterized by good yields, high regioselectivity, and broad substrate scope. This method is also applicable to the synthesis of tetracyclic dihydroquinazolinones and seven-membered ring-fused dihydroquinazolinones.
Collapse
|
47
|
Jamali M, Sardarian AR, Rezaei F, Ghanbari MM, Mohajeri A. Highly efficient microwave‐assisted solvent free sequential one‐pot multicomponent synthesis of novel 2‐hydroxy indenopyridin‐5‐ones and mechanismic computational study. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4375] [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)
- Marzieh Jamali
- Chemistry Department, College of Sciences Shiraz University Shiraz Iran
| | | | - Farideh Rezaei
- Chemistry Department, College of Sciences Shiraz University Shiraz Iran
| | | | - Afshan Mohajeri
- Chemistry Department, College of Sciences Shiraz University Shiraz Iran
| |
Collapse
|
48
|
Kumar S, Kumar A, Sharma D, Das P. Free Amine, Hydroxyl and Sulfhydryl Directed C-H Functionalization and Annulation: Application to Heterocycle Synthesis. CHEM REC 2021; 22:e202100171. [PMID: 34436813 DOI: 10.1002/tcr.202100171] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/09/2021] [Accepted: 08/11/2021] [Indexed: 12/16/2022]
Abstract
Transition metal-catalyzed direct C-H bond functionalization is recognized as an efficient strategy to assemble heterocyclic frameworks. For this purpose, directing groups (DGs) installation on an organic molecule has remained a widely exploited strategy for the years. The installation of directing groups, especially for the amine, alcohol and thiol containing reactants and their removal after the reaction need additional steps. In this regard, the use of free amine, hydroxyl and sulfhydryl as directing groups in native form is advantageous and in recent times, these transformations have stirred undisputable advancements for applications to heterocycle synthesis. In this review, the aromatic sp2 -C attached free amine, hydroxyl and sulfhydryl as native functionalities are shown to be useful for the construction of five to seven-membered N-, O- and S-heterocycles.
Collapse
Affiliation(s)
- Sandeep Kumar
- Department of Chemistry, DAV University, Jalandhar, 144012, Punjab, India.,Chemical Technology Division, CSIR- Institute of Himalayan Bioresource Technology, Palampur, 176061, H.P.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Akshay Kumar
- Department of Chemistry, DAV University, Jalandhar, 144012, Punjab, India
| | - Dharminder Sharma
- Chemical Technology Division, CSIR- Institute of Himalayan Bioresource Technology, Palampur, 176061, H.P.,PG Department of Chemistry, JCDAV College Dasuya, Punjab, 144205, India
| | - Pralay Das
- Chemical Technology Division, CSIR- Institute of Himalayan Bioresource Technology, Palampur, 176061, H.P.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| |
Collapse
|
49
|
He X, Wang C, Wen Y, Wang Z, Qian S. Recent Advances in Catalytic Atroposelective Construction of Pentatomic Heterobiaryl Scaffolds. ChemCatChem 2021. [DOI: 10.1002/cctc.202100539] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiao‐Long He
- School of Food and Bioengineering Xihua University Chengdu 610039 P. R. China
| | - Cheng Wang
- School of Food and Bioengineering Xihua University Chengdu 610039 P. R. China
| | - You‐Wu Wen
- School of Food and Bioengineering Xihua University Chengdu 610039 P. R. China
| | - Zhouyu Wang
- School of Science Xihua University Chengdu 610039 P. R. China
| | - Shan Qian
- School of Food and Bioengineering Xihua University Chengdu 610039 P. R. China
| |
Collapse
|
50
|
Chemo‐ and Regioselective Synthesis of Functionalized 1
H
‐imidazo[1,5‐
a
]indol‐3(2
H
)‐ones via a Redox‐Neutral Rhodium(III)‐Catalyzed [4+1] Annulation between Indoles and Alkynes. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100555] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|