1
|
Xu Y, Feng B, Li S, Fang H. Alkoxycarbonyl Groups in Metalloesters Showing Oxocarbenium-like Structure and Alkylating Reactivity. Angew Chem Int Ed Engl 2024; 63:e202402370. [PMID: 38426853 DOI: 10.1002/anie.202402370] [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: 02/01/2024] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/02/2024]
Abstract
In contrast to the well-documented acylating reactivity, the alkylating reactivity of the alkoxycarbonyl group, as signified by its oxocarbenium-like resonance structure, remains almost unexplored. Herein, the first series of Co/Ni dinuclear metalloesters exhibiting the novel oxocarbenium-like alkoxycarbonyl groups were synthesized and characterized. In these deformed alkoxycarbonyl groups, the Ccarbonyl-Oalkoxyl bonds were contracted to 1.177(11)~1.191(9) Å with the elongations of the Ccarbonyl=Ocarbonyl bonds to 1.368(13)~1.441(9) Å. Meanwhile, the O-Calkyl bonds were also elongated to 1.522(11) ~1.607(15) Å, and were by far the longest O-Calkyl bonds reported for alkoxycarbonyl groups. As triggered by the long O-Calkyl distances, the alkylating reactivity of the oxocarbenium-like methoxycarbonyl group towards a series of C/N/O-nucleophiles via the rare BAL2 mechanism at ambient conditions was examined. Furthermore, the homo-etherifications of alcohols mediated by the Co/Ni dinuclear metalloesters were investigated. The yields followed the trend ethanol≫n-propanol≫n-butanol ≈n-pentanol, that closely related to the structure features of the alkoxycarbonyl groups in corresponding metalloesters: while the ethoxycarbonyl group showed the reactive oxocarbenium-like framework, the n-propoxycarbonyl group displayed the dioxocarbenium-like skeleton with a shorter O-Calkyl bond; In comparison, the classical frameworks with unactivated alkyl moieties were observed for n-butoxycarbonyl and n-pentoxycarbonyl groups.
Collapse
Affiliation(s)
- Yingzhuang Xu
- School of Materials Science and Engineering, Tianjin Key Lab for Rare Earth Materials and Applications, Nankai University, Tianjin, 300350, P. R. China
| | - Bingjian Feng
- School of Materials Science and Engineering, Tianjin Key Lab for Rare Earth Materials and Applications, Nankai University, Tianjin, 300350, P. R. China
| | - Songyi Li
- School of Materials Science and Engineering, Tianjin Key Lab for Rare Earth Materials and Applications, Nankai University, Tianjin, 300350, P. R. China
| | - Huayi Fang
- School of Materials Science and Engineering, Tianjin Key Lab for Rare Earth Materials and Applications, Nankai University, Tianjin, 300350, P. R. China
| |
Collapse
|
2
|
Cui J, Wang T. B(C 6F 5) 3-mediated direct intramolecular C7-alkenylation of N-propargylindoles. Chem Commun (Camb) 2023; 59:10279-10282. [PMID: 37539546 DOI: 10.1039/d3cc02599c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
B(C6F5)3-mediated direct C7-alkenylation of N-propargylindoles without directing groups was developed. This reaction proceeds via the π-activation of the alkynyl group with B(C6F5)3/Friedel-Crafts alkenylation/proton transfer reaction sequence. Interestingly, C7-alkenylation products could further convert into the fused indoles by deprotonation and finally polyaromatic N-heterocycles by the hydride abstraction.
Collapse
Affiliation(s)
- Jie Cui
- School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Tongdao Wang
- School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China.
| |
Collapse
|
3
|
Ano Y, Takahashi S, Chatani N. Palladium-Catalyzed 1,1-Alkynyloxygenation of 2-Vinylbenzoates with Alkynyl Bromides. Org Lett 2023; 25:3266-3270. [PMID: 37133260 DOI: 10.1021/acs.orglett.3c01008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The palladium-catalyzed reaction of alkyl 2-vinylbenzoates with silyl-protected alkynyl bromides leads to the selective production of 3-alkynylated isochroman-1-ones. The use of an alkyl ester group as an effective oxygen nucleophile is crucial for the efficient 1,1-alkynyloxygenation of alkenes.
Collapse
Affiliation(s)
- Yusuke Ano
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- Center for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Sakura Takahashi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- Research Center for Environmental Preservation, Osaka University, 2-4 Yamadaoka, Suita, Osaka 565-0871, Japan
| |
Collapse
|
4
|
Yu M, Jin T, Wang X, Li H, Ji D, Yao J, Zeng H, Shi S, Xu K, Zhang L. Regioselective intramolecular cyclization of o-alkynyl arylamines with the in situ formation of ArXCl to construct poly-functionalized 3-selenylindoles. RSC Adv 2023; 13:6210-6216. [PMID: 36825294 PMCID: PMC9941895 DOI: 10.1039/d3ra00030c] [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: 01/03/2023] [Accepted: 02/15/2023] [Indexed: 02/23/2023] Open
Abstract
In this article, a practical and metal-free method for the synthesis of poly-functionalized 3-selenyl/sulfenyl/telluriumindoles from o-alkynyl arylamines has been achieved. In this protocol, the in situ formation of selenenyl chloride, sulfenyl chloride or tellurenyl chloride is considered as the key intermediate and the 3-selenyl/sulfenyl/telluriumindoles can be obtained in good to excellent yields. Furthermore, the product 2-phenyl-3-(phenylselanyl)-1-tosyl-1H-indole can be selectively oxidized to compounds 2-phenyl-3-(phenylseleninyl)-1-tosyl-1H-indole and 2-phenyl-3-(phenylselenonyl)-1-tosyl-1H-indole in good yields.
Collapse
Affiliation(s)
- Minhui Yu
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University Kunming 650224 Yunnan China
- College of Biological, Chemical Sciences and Engineering, Jiaxing University Jiaxing 314001 Zhejiang China
| | - Tao Jin
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University Kunming 650224 Yunnan China
| | | | - Haohu Li
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University Kunming 650224 Yunnan China
| | - Decai Ji
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University Kunming 650224 Yunnan China
| | - Jinzhong Yao
- College of Biological, Chemical Sciences and Engineering, Jiaxing University Jiaxing 314001 Zhejiang China
| | - Heyang Zeng
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University Kunming 650224 Yunnan China
| | - Senlei Shi
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University Kunming 650224 Yunnan China
| | - Kaimeng Xu
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University Kunming 650224 Yunnan China
| | - Lianpeng Zhang
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University Kunming 650224 Yunnan China
| |
Collapse
|
5
|
Peng H, Shi S, Lu Z, Liu L, Peng S, Wei P, Yi T. HOCl-Activated Reactive Organic Selenium Delivery Platform for Alleviation of Inflammation. Bioconjug Chem 2022; 33:1602-1608. [PMID: 36018225 DOI: 10.1021/acs.bioconjchem.2c00349] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Selenium plays an important role in the biological system and can be used to treat various types of diseases. However, the current selenium delivery systems face the problems of low activity of released Se-containing compounds or nonspecific toxicity of reactive organic selenium donors in living systems. In response to these problems, we constructed a reactive organic selenium delivery platform by the activation of HOCl. Compared with prodrugs without activation capability, the hypochloroselenoite derivatives released from the present platform after activation displayed higher reactivity and could react with various nucleophiles to participate in specific life processes. Taking the selected compound (DHU-Se1) as an example, we found that it could alleviate the process of inflammation by blocking the polarization of macrophages from M0 to M1. Therefore, the development of this system is of great significance for expanding the application of selenium-containing compounds and treating related diseases.
Collapse
Affiliation(s)
- Hongying Peng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Shi Shi
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China
| | - Zhenni Lu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Lingyan Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Shuxin Peng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Peng Wei
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Tao Yi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| |
Collapse
|
6
|
Tao S, Huo A, Gao Y, Zhang X, Yang J, Du Y. PhICl2-Mediated Regioselective and Electrophilic Oxythio/Selenocyanation of o-(1-Alkynyl)benzoates: Access to Biologically Active S/SeCN-Containing Isocoumarins. Front Chem 2022; 10:859995. [PMID: 35665060 PMCID: PMC9158338 DOI: 10.3389/fchem.2022.859995] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 02/28/2022] [Indexed: 12/11/2022] Open
Abstract
The application of PhICl2/NH4SCN and PhICl2/KSeCN reagent systems to the synthesis of the biologically active S/SeCN-containing isocoumarins via a process involving thio/selenocyanation, enabled by thio/selenocyanogen chloride generated in situ, followed with an intramolecular lactonization was realized. Gram-scale synthesis, further derivatization to access C4 thio/selenocyanated Xyridin A and anti-tumor activities of the obtained products highlight the potential use of this method.
Collapse
Affiliation(s)
- Shanqing Tao
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Aiwen Huo
- Hebei Key Laboratory of State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, China
| | - Yan Gao
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Xiangyang Zhang
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Jingyue Yang
- Hebei Key Laboratory of State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, China
- *Correspondence: Yunfei Du, ; Jingyue Yang,
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
- *Correspondence: Yunfei Du, ; Jingyue Yang,
| |
Collapse
|
7
|
G S, Shetgaonkar SE, Singh FV. Recent Advances in Organoselenium Catalysis. Curr Org Synth 2022; 19:393-413. [DOI: 10.2174/1570179419666220211102602] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 11/10/2021] [Accepted: 12/16/2021] [Indexed: 11/22/2022]
Abstract
Abstract:
: Organoselenium chemistry has developed as an important tool in the field of synthetic and medicinal chemistry. Various organoselenium reagents have been developed and used successfully to achieve different organic transformations such as the selenocyclizations, oxyselenenylations and selenoxide eliminations etc. Additionally, the potential of organoselenium reagents is not limited their use as stoichiometric reagents but they have successfully used as organocatalyst in number of synthetic transformations. Various organic and inorganic oxidants have been identified as terminal oxidants to regenerate the active catalytic specie. In this review article, the recent progress of organoselenium reagents in catalysis is being highlighted along with their asymmetric variants.
Collapse
Affiliation(s)
- Santosh G
- Chemistry Division, School of Advanced Science, VIT Chennai, Chennai-600127, Tamil Nadu, India
| | - Samata E. Shetgaonkar
- Chemistry Division, School of Advanced Science, VIT Chennai, Chennai-600127, Tamil Nadu, India
| | - Fateh V. Singh
- Chemistry Division, School of Advanced Science, VIT Chennai, Chennai-600127, Tamil Nadu, India
| |
Collapse
|
8
|
Wang J, Zhou H, Wei J, Liu F, Wang T. Metal-free trans-hydroboration without a B-H bond: reactions of propargyl amines with Lewis acidic boranes. Chem Commun (Camb) 2022; 58:6910-6913. [DOI: 10.1039/d2cc02687b] [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
The first alkyne trans-hydroboration reaction without a B-H bond was described. This was achieved by reactions of propargyl amines with Lewis acidic boranes under mild conditions. The mechanism involved borane-mediated...
Collapse
|
9
|
Boron compounds for catalytic applications. ADVANCES IN CATALYSIS 2022. [DOI: 10.1016/bs.acat.2022.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
10
|
Goulart HA, Neto JSS, Barcellos AM, Silva KB, de Moraes MC, Jacob RG, Lenardão EJ, Barcellos T, Perin G. Synthesis of 4-Selanyl- and 4-Tellanyl-1 H-isochromen-1-ones Promoted by Diorganyl Dichalcogenides and Oxone. J Org Chem 2021; 86:14016-14027. [PMID: 33750133 DOI: 10.1021/acs.joc.1c00271] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A new method was developed for the synthesis of 4-chalcogenyl-1H-isochromen-1-ones through the 6-endo-dig electrophilic cyclization of 2-alkynylaryl esters and diorganyl dichalcogenides under ultrasound irradiation. The reactions were performed under mild conditions, using Oxone as a green oxidant to promote the cleavage of the chalcogen-chalcogen bond in diorganyl diselenides and ditellurides to generate electrophilic species in situ. A total of 25 compounds were selectively obtained after 30-70 min, in good to excellent yields (74-95%). This procedure was extended to prepare 5H-selenopheno[3,2-c]isochromen-5-ones. Additionally, for the first time, the 4-chalcogenyl-1H-isochromen-1-ones were used as substrates in the thionation reaction, using Lawesson's reagent and microwave irradiation under solvent-free conditions, obtaining the thio derivatives in yields of up to 99% in only 15 min.
Collapse
Affiliation(s)
- Helen A Goulart
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354 - 96010-900 Pelotas, RS. Brazil
| | - José S S Neto
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354 - 96010-900 Pelotas, RS. Brazil
| | - Angelita M Barcellos
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354 - 96010-900 Pelotas, RS. Brazil
| | - Krigor B Silva
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354 - 96010-900 Pelotas, RS. Brazil
| | - Maiara C de Moraes
- Laboratory of Biotechnology of Natural and Synthetic Products, Universidade de Caxias do Sul, 95070-560 Caxias do Sul, RS, Brazil
| | - Raquel G Jacob
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354 - 96010-900 Pelotas, RS. Brazil
| | - Eder J Lenardão
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354 - 96010-900 Pelotas, RS. Brazil
| | - Thiago Barcellos
- Laboratory of Biotechnology of Natural and Synthetic Products, Universidade de Caxias do Sul, 95070-560 Caxias do Sul, RS, Brazil
| | - Gelson Perin
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354 - 96010-900 Pelotas, RS. Brazil
| |
Collapse
|
11
|
Visible light-enabled iron-catalyzed selenocyclization of N-methoxy-2-alkynylbenzamide. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111881] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
12
|
Zeni G, Godoi B, Jurinic CK, Belladona AL, Schumacher RF. Transition Metal-Free Synthesis of Carbo- and Heterocycles via Reaction of Alkynes with Organylchalcogenides. CHEM REC 2021; 21:2880-2895. [PMID: 33394571 DOI: 10.1002/tcr.202000152] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/18/2020] [Accepted: 12/21/2020] [Indexed: 11/09/2022]
Abstract
This manuscript intends to overview the most recent advances in the synthesis of carbo- and heterocycles through reactions of alkynes with organyl chalcogenides (S, Se, Te) under metal-free conditions. Firstly, the use of electrophilic chalcogenyl halides as a selective reagent for alkyne carbon-carbon triple bond activation will be presented. After that, radical cyclization protocols employing electrochemical oxidative conditions, light-induced photoredox catalysis, or mild oxidants with direct chalcogenyl group installation will be discussed accompanied by the proposed mechanisms.
Collapse
Affiliation(s)
- Gilson Zeni
- Department of Chemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil, 97105-900
| | - Benhur Godoi
- Programa de Pós-graduação em Ambiente e Tecnologias Sustentáveis - PPGATS, Federal University of Fronteira Sul, Brazil, RS, 97900-000
| | - Carla K Jurinic
- Programa de Pós-graduação em Ambiente e Tecnologias Sustentáveis - PPGATS, Federal University of Fronteira Sul, Brazil, RS, 97900-000
| | - Andrei L Belladona
- Department of Chemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil, 97105-900
| | - Ricardo F Schumacher
- Department of Chemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil, 97105-900
| |
Collapse
|
13
|
Lin X, Fang Z, Zeng C, Zhu C, Pang X, Liu C, He W, Duan J, Qin N, Guo K. Continuous Electrochemical Synthesis of Iso-Coumarin Derivatives from o-(1-Alkynyl) Benzoates under Metal- and Oxidant-Free. Chemistry 2020; 26:13738-13742. [PMID: 32460407 DOI: 10.1002/chem.202001766] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 05/17/2020] [Indexed: 11/06/2022]
Abstract
A non-oxidant and metal-free strategy for synthesizing iso-coumarin by using a continuous electrochemical microreactor to initiate an oxidative cyclization reaction of o-(1-alkynyl) benzoate and radicals. This efficient and clean continuous electrosynthesis method not only avoids the complicated gas protection operation and production of by-products in the batch processes, but also help to overcome the difficulty that batch metal catalysis and electrocatalysis are difficult to scale up, and has the potential for pilot-scale experiment.
Collapse
Affiliation(s)
- Xinxin Lin
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, P. R. China
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, P. R. China
| | - Cuilian Zeng
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, P. R. China
| | - Chenlong Zhu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, P. R. China
| | - Xinyan Pang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, P. R. China
| | - Chengkou Liu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, P. R. China
| | - Wei He
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, P. R. China
| | - Jindian Duan
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, P. R. China
| | - Ning Qin
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, P. R. China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, P. R. China.,State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, P. R. China
| |
Collapse
|
14
|
Sonawane AD, Sonawane RA, Ninomiya M, Koketsu M. Synthesis of Seleno‐Heterocycles
via
Electrophilic/Radical Cyclization of Alkyne Containing Heteroatoms. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000490] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Amol D. Sonawane
- Department of Chemistry and Biomolecular ScienceFaculty of EngineeringGifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Rohini A. Sonawane
- Department of Chemistry and Biomolecular ScienceFaculty of EngineeringGifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Masayuki Ninomiya
- Department of Chemistry and Biomolecular ScienceFaculty of EngineeringGifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Mamoru Koketsu
- Department of Chemistry and Biomolecular ScienceFaculty of EngineeringGifu University 1-1 Yanagido Gifu 501-1193 Japan
| |
Collapse
|
15
|
|
16
|
Abstract
:Over the last decades, many methods have been reported for the synthesis of selenium- heterocyclic scaffolds because of their interesting reactivities and applications in the medicinal as well as in the material chemistry. This review describes the recent numerous useful methodologies on C-Se bond formation reactions which were basically carried out at low and room temperature.
Collapse
Affiliation(s)
- Amol D. Sonawane
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Mamoru Koketsu
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| |
Collapse
|
17
|
Jin GQ, Gao WX, Zhou YB, Liu MC, Wu HY. Synthesis of selenated isochromenones by AgNO3-catalyzed three-component reaction of alkynylaryl esters, selenium powder and ArB(OH)2. RSC Adv 2020; 10:30439-30442. [PMID: 35516059 PMCID: PMC9056279 DOI: 10.1039/d0ra06016j] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 08/10/2020] [Indexed: 11/26/2022] Open
Abstract
Reported is the AgNO3-catalyzed three-component reaction of alkynylaryl esters, selenium powder and ArB(OH)2, providing a facile entry to selenated isochromenones. This work highlights the use of selenium powder as a selenium reagent in the synthesis of selenated isochromenones for the first time. We reported AgNO3-catalyzed three-component reaction of alkynylaryl esters, selenium powder and ArB(OH)2, providing an efficient synthetic route to selenated isochromenones.![]()
Collapse
Affiliation(s)
- Guo-Qing Jin
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Wen-Xia Gao
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Yun-Bing Zhou
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Miao-Chang Liu
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Hua-Yue Wu
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| |
Collapse
|
18
|
Zhang X, Wan X, Cong Y, Zhen X, Li Q, Zhang-Negrerie D, Du Y, Zhao K. Lactonization of 2-Alkynylbenzoates for the Assembly of Isochromenones Mediated by BF 3·Et 2O. J Org Chem 2019; 84:10402-10411. [PMID: 31328911 DOI: 10.1021/acs.joc.9b01601] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A general and efficient lactonization method of readily available 2-alkynylbenzoates affording biologically important isochromenones has been realized via a solely BF3·Et2O-mediated 6-endo-dig cyclization process under mild conditions. An alternative mechanistic pathway in which BF3·Et2O activates the carbonyl of the ester moiety, rather than the alkyne triple bond, was postulated on the basis of control experiment results. Gram-scale reaction and further application for the assembly of more complex molecules demonstrated the practicability of the protocol.
Collapse
Affiliation(s)
- Xiang Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Xintong Wan
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Ying Cong
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Xiaohua Zhen
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Qiao Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Daisy Zhang-Negrerie
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , China
| | - Kang Zhao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| |
Collapse
|
19
|
Xing L, Zhang Y, Li B, Du Y. In Situ Formation of RSCl/ArSeCl and Their Application to the Synthesis of 4-Chalcogenylisocumarins/Pyrones from o-(1-Alkynyl)benzoates and (Z)-2-Alken-4-ynoates. Org Lett 2019; 21:3620-3624. [DOI: 10.1021/acs.orglett.9b01046] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Linlin Xing
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Yong Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Bing Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| |
Collapse
|
20
|
Abstract
The study of main-group molecules that behave and react similarly to transition-metal (TM) complexes has attracted significant interest in recent decades. Most notably, the attractive idea of replacing the all-too-often rare and costly metals from catalysis has motivated efforts to develop main-group-element-mediated reactions. Main-group elements, however, lack the electronic flexibility of TM complexes that arises from combinations of empty and filled d orbitals and that seem ideally suited to bind and activate many substrates. In this review, we look at boron, an element that despite its nonmetal nature, low atomic weight, and relative redox staticity has achieved great milestones in terms of TM-like reactivity. We show how in interelement cooperative systems, diboron molecules, and hypovalent complexes the fifth element can acquire a truly metallomimetic character. As we discuss, this character is powerfully demonstrated by the reactivity of boron-based molecules with H2, CO, alkynes, alkenes and even with N2.
Collapse
|
21
|
Abstract
Organoselenium chemistry has become an important tool in synthetic and medicinal chemistry.
Collapse
|
22
|
|
23
|
Wilken M, Ortgies S, Breder A, Siewert I. Mechanistic Studies on the Anodic Functionalization of Alkenes Catalyzed by Diselenides. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01236] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Mona Wilken
- Universität Göttingen, Institut für Anorganische Chemie, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Stefan Ortgies
- Universität Göttingen, Institut für Organische und Biomolekulare Chemie, Tammannstrasse 2, 37077 Göttingen, Germany
| | - Alexander Breder
- Universität Göttingen, Institut für Organische und Biomolekulare Chemie, Tammannstrasse 2, 37077 Göttingen, Germany
| | - Inke Siewert
- Universität Göttingen, Institut für Anorganische Chemie, Tammannstrasse 4, 37077 Göttingen, Germany
| |
Collapse
|
24
|
Yuan ST, Zhou H, Gao L, Liu JB, Qiu G. Regioselective Neighboring-Group-Participated 2,4-Dibromohydration of Conjugated Enynes: Synthesis of 2-(2,4-Dibromobut-2-enoyl)benzoate and Its Applications. Org Lett 2018; 20:562-565. [DOI: 10.1021/acs.orglett.7b03671] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Si-Tian Yuan
- College
of Biological, Chemical Science and Engineerindg, Jiaxing University, 118 Jiahang Road, Jiaxing 314001, China
- School
of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology, 86 Hongqi Road, Ganzhou 341000, China
| | - Hongwei Zhou
- College
of Biological, Chemical Science and Engineerindg, Jiaxing University, 118 Jiahang Road, Jiaxing 314001, China
| | - Liang Gao
- Department
of natural Science and Computer Science, Ganzhou Teacher’s College, Ganzhou, 341000, China
| | - Jin-Biao Liu
- School
of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology, 86 Hongqi Road, Ganzhou 341000, China
| | - Guanyinsheng Qiu
- College
of Biological, Chemical Science and Engineerindg, Jiaxing University, 118 Jiahang Road, Jiaxing 314001, China
| |
Collapse
|
25
|
Soltani Y, Adams SJ, Börger J, Wilkins LC, Newman PD, Pope SJA, Melen RL. Synthesis and photophysical properties of imine borane adducts towards vapochromic materials. Dalton Trans 2018; 47:12656-12660. [DOI: 10.1039/c8dt03019g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A series of alkynyl aryl conjugated aldehydes and imines were prepared and their adducts with various Lewis acidic boranes have been studied via NMR, absorption, and luminescence spectroscopies in solution.
Collapse
|
26
|
Soltani Y, Wilkins LC, Melen RL. Stöchiometrische und katalytische C-C- und C-H-Bindungsbildung mit B(C6
F5
)3
über kationische Zwischenstufen. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704789] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yashar Soltani
- School of Chemistry; Cardiff University; Main Building, Park Place Cardiff CF10 3AT Cymru/Wales Großbritannien
| | - Lewis C. Wilkins
- School of Chemistry; Cardiff University; Main Building, Park Place Cardiff CF10 3AT Cymru/Wales Großbritannien
| | - Rebecca L. Melen
- School of Chemistry; Cardiff University; Main Building, Park Place Cardiff CF10 3AT Cymru/Wales Großbritannien
| |
Collapse
|
27
|
Soltani Y, Wilkins LC, Melen RL. Stoichiometric and Catalytic C−C and C−H Bond Formation with B(C6
F5
)3
via Cationic Intermediates. Angew Chem Int Ed Engl 2017; 56:11995-11999. [DOI: 10.1002/anie.201704789] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 06/30/2017] [Indexed: 01/07/2023]
Affiliation(s)
- Yashar Soltani
- School of Chemistry; Cardiff University; Main Building, Park Place Cardiff CF10 3AT Cymru/Wales UK
| | - Lewis C. Wilkins
- School of Chemistry; Cardiff University; Main Building, Park Place Cardiff CF10 3AT Cymru/Wales UK
| | - Rebecca L. Melen
- School of Chemistry; Cardiff University; Main Building, Park Place Cardiff CF10 3AT Cymru/Wales UK
| |
Collapse
|
28
|
Issaian A, Faizi DJ, Bailey JO, Mayer P, Berionni G, Singleton DA, Blum SA. Mechanistic Studies of Formal Thioboration Reactions of Alkynes. J Org Chem 2017; 82:8165-8178. [PMID: 28671461 DOI: 10.1021/acs.joc.7b01500] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Several formal heteroborylative cyclization reactions have been recently reported, but little physical-organic and mechanistic data are known. We now investigate the catalyst-free formal thioboration reaction of alkynes to gain mechanistic insight into B-chlorocatecholborane (ClBcat) in its new role as an alkynophilic Lewis acid in electrophilic cyclization/dealkylation reactions. In kinetic studies, the reaction is second-order globally and first-order with respect to both the 2-alkynylthioanisole substrate and the ClBcat electrophile, with activation parameters of ΔG‡ = 27.1 ± 0.1 kcal mol-1 at 90 °C, ΔH‡ = 13.8 ± 1.0 kcal mol-1, and ΔS‡ = -37 ± 3 cal mol-1 K-1, measured over the range 70-90 °C. Carbon kinetic isotope effects supported a rate-determining AdE3 mechanism wherein alkyne activation by neutral ClBcat is concerted with cyclative attack by nucleophilic sulfur. A Hammett study found a ρ+ of -1.7, suggesting cationic charge buildup during the cyclization and supporting rate-determining concerted cyclization. Studies of the reaction with tris(pentafluorophenyl)borane (B(C6F5)3), an activating agent capable of cyclization but not dealkylation, resulted in the isolation of a postcyclization zwitterionic intermediate. Kinetic studies via UV-vis spectroscopy with this boron reagent found second-order kinetics, supporting the likely relevancy of intermediates in this system to the ClBcat system. Computational studies comparing ClBcat with BCl3 as an activating agent showed why BCl3, in contrast to ClBcat, failed to mediate the complete the cyclization/demethylation reaction sequence by itself. Overall, the results support a mechanism in which the ClBcat reagent serves a bifunctional role by sequentially activating the alkyne, despite being less electrophilic than other known alkyne-activating reagents and then providing chloride for post-rate-determining demethylation/neutralization of the resulting zwitterionic intermediate.
Collapse
Affiliation(s)
- Adena Issaian
- Department of Chemistry, University of California , Irvine, California 92617-2025, United States
| | - Darius J Faizi
- Department of Chemistry, University of California , Irvine, California 92617-2025, United States
| | - Johnathan O Bailey
- Department of Chemistry, Texas A&M University , P.O. Box 30012, College Station, Texas 77842, United States
| | - Peter Mayer
- Department of Chemistry, Ludwig Maximilian University of Munich , Munich, 80539, Germany
| | - Guillaume Berionni
- Department of Chemistry, Ludwig Maximilian University of Munich , Munich, 80539, Germany
| | - Daniel A Singleton
- Department of Chemistry, Texas A&M University , P.O. Box 30012, College Station, Texas 77842, United States
| | - Suzanne A Blum
- Department of Chemistry, University of California , Irvine, California 92617-2025, United States
| |
Collapse
|
29
|
Wilkins LC, Howard JL, Burger S, Frentzel-Beyme L, Browne DL, Melen RL. Exploring Multistep Continuous-Flow Hydrosilylation Reactions Catalyzed by Tris(pentafluorophenyl)borane. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700349] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Lewis C. Wilkins
- School of Chemistry; Main Building; Park Place; Cardiff University; Cardiff CF10 3AT U.K
| | - Joseph L. Howard
- School of Chemistry; Main Building; Park Place; Cardiff University; Cardiff CF10 3AT U.K
| | - Stefan Burger
- School of Chemistry; Main Building; Park Place; Cardiff University; Cardiff CF10 3AT U.K
| | - Louis Frentzel-Beyme
- School of Chemistry; Main Building; Park Place; Cardiff University; Cardiff CF10 3AT U.K
| | - Duncan L. Browne
- School of Chemistry; Main Building; Park Place; Cardiff University; Cardiff CF10 3AT U.K
| | - Rebecca L. Melen
- School of Chemistry; Main Building; Park Place; Cardiff University; Cardiff CF10 3AT U.K
| |
Collapse
|
30
|
Yuan ST, Wang YH, Liu JB, Qiu G. NBS-Mediated Oxygen Transfer Reaction of Carbonyl in Ester: Efficient Synthesis of Benzil-o
-carboxylate Derivative From o
-Alkynylbenzoate. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700168] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Si-Tian Yuan
- College of Biological; Chemical Science and Engineering; Jiaxing University; 118 Jiahang Road Jiaxing People's Republic of China
- School of Metallurgical and Chemical Engineering; Jiangxi University of Science and Technology; 86 Hongqi Road Ganzhou 341000 People's Republic of China
| | - Yan-Hua Wang
- School of Metallurgical and Chemical Engineering; Jiangxi University of Science and Technology; 86 Hongqi Road Ganzhou 341000 People's Republic of China
| | - Jin-Biao Liu
- School of Metallurgical and Chemical Engineering; Jiangxi University of Science and Technology; 86 Hongqi Road Ganzhou 341000 People's Republic of China
| | - Guanyinsheng Qiu
- College of Biological; Chemical Science and Engineering; Jiaxing University; 118 Jiahang Road Jiaxing People's Republic of China
| |
Collapse
|
31
|
Wilkins LC, Günther BAR, Walther M, Lawson JR, Wirth T, Melen RL. Contrasting Frustrated Lewis Pair Reactivity with Selenium- and Boron-Based Lewis Acids. Angew Chem Int Ed Engl 2016; 55:11292-5. [PMID: 27484052 PMCID: PMC5113806 DOI: 10.1002/anie.201605239] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2016] [Indexed: 01/11/2023]
Abstract
The activation of π-bonds in diynyl esters has been investigated by using soft and hard Lewis acids. In the case of the soft selenium Lewis acid PhSeCl, sequential activation of the alkyne bonds leads initially to an isocoumarin (1 equiv PhSeCl) and then to a tetracyclic conjugated structure with the isocoumarin subunit fused to a benzoselenopyran (3 equiv PhSeCl). Conversely, the reaction with the hard Lewis acidic borane B(C6 F5 )3 initiates a cascade reaction to yield a complex π-conjugated system containing phthalide and indene subunits.
Collapse
Affiliation(s)
- Lewis C Wilkins
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, Cymru/Wales, CF10 3AT, UK
| | - Benjamin A R Günther
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, Cymru/Wales, CF10 3AT, UK
| | - Melanie Walther
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, Cymru/Wales, CF10 3AT, UK
| | - James R Lawson
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, Cymru/Wales, CF10 3AT, UK
| | - Thomas Wirth
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, Cymru/Wales, CF10 3AT, UK
| | - Rebecca L Melen
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, Cymru/Wales, CF10 3AT, UK.
| |
Collapse
|