151
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Gupta S, Lin Y, Xia Y, Wink DJ, Lee D. Alder-ene reactions driven by high steric strain and bond angle distortion to form benzocyclobutenes. Chem Sci 2019; 10:2212-2217. [PMID: 30931094 PMCID: PMC6399677 DOI: 10.1039/c8sc04277b] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 12/18/2018] [Indexed: 01/02/2023] Open
Abstract
A unique aryne-based Alder-ene reaction to form benzocyclobutene is described.
A unique aryne-based Alder-ene reaction to form benzocyclobutene is described. In this process, the thermodynamic barrier to form a four-membered ring is compensated by the relief of the strain energy of an aryne intermediate. On the other hand, the driving force to overcome the high kinetic barrier is provided by the gearing effect of the bulky substituent at the ortho-position of the ene-donor alkene. To maximize the steric strain by the ortho-substituent, a structural element for internal hydrogen bonding is installed, which plays a crucial role for both the hexadehydro Diels–Alder and the Alder-ene reactions. DFT calculations show that the bulky hydrogen bonding element lowers the activation barrier for the Alder-ene reaction by destabilizing the intermediate, which is due to the severe bond angle distortion. The preferred formation of cis-isomers can also be explained by the extent of bond angle distortion.
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Affiliation(s)
- Saswata Gupta
- Department of Chemistry , University of Illinois at Chicago , 845 West Taylor Street , Chicago , Illinois 60607 , USA .
| | - Yongjia Lin
- College of Chemistry and Materials Engineering , Wenzhou University , Wenzhou , Zhejiang Province 325035 , P. R. China .
| | - Yuanzhi Xia
- College of Chemistry and Materials Engineering , Wenzhou University , Wenzhou , Zhejiang Province 325035 , P. R. China .
| | - Donald J Wink
- Department of Chemistry , University of Illinois at Chicago , 845 West Taylor Street , Chicago , Illinois 60607 , USA .
| | - Daesung Lee
- Department of Chemistry , University of Illinois at Chicago , 845 West Taylor Street , Chicago , Illinois 60607 , USA .
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152
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Xu W, Yang X, Fan X, Wang X, Tung C, Wu L, Cong H. Synthesis and Characterization of a Pentiptycene‐Derived Dual Oligoparaphenylene Nanohoop. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814482] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Wei Xu
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100190 China
| | - Xiao‐Di Yang
- Innovation Research Institute of Traditional Chinese MedicineShanghai University of Traditional Chinese Medicine Shanghai 201203 China
| | - Xiang‐Bing Fan
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100190 China
| | - Xin Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100190 China
| | - Chen‐Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100190 China
| | - Li‐Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100190 China
| | - Huan Cong
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100190 China
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153
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Gaykar RN, Bhattacharjee S, Biju AT. Transition-Metal-Free Thioamination of Arynes Using Sulfenamides. Org Lett 2019; 21:737-740. [PMID: 30648876 DOI: 10.1021/acs.orglett.8b03966] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The insertion of arynes into the S-N σ-bond of sulfenamides allowing the synthesis of o-sulfanylaniline derivatives with reasonable functional group compatibility is presented. The aryne generated from 2-(trimethylsilyl)aryl triflates using CsF in DME was the key for the success of this transition-metal-free thioamination reaction, which involves new C-N and C-S bond formations in a single step under mild conditions. Moreover, the synthetic potential of this method was demonstrated by the synthesis of the antidepressant drug vortioxetine.
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Affiliation(s)
- Rahul N Gaykar
- Department of Organic Chemistry , Indian Institute of Science , Bangalore 560012 , India
| | - Subrata Bhattacharjee
- Department of Organic Chemistry , Indian Institute of Science , Bangalore 560012 , India
| | - Akkattu T Biju
- Department of Organic Chemistry , Indian Institute of Science , Bangalore 560012 , India
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154
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Li Z, Wang W, Jian H, Li W, Dai B, He L. Synthesis of 9-phenol-substituted xanthenes by cascade O-insertion/1,6-conjugate addition of benzyne with ortho-hydroxyphenyl substituted para-quinone methides. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2018.04.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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155
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Hu W, Zhang C, Huang J, Guo Y, Fu Z, Huang W. Access to Highly Functionalized Indanes from Arynes and α,γ-Diketo Esters. Org Lett 2019; 21:941-945. [DOI: 10.1021/acs.orglett.8b03919] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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156
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Martín-Beltrán C, Sánchez-Peris M, Conesa-Milián L, Falomir E, Murga J, Carda M, Marco JA. Arylpyridines, arylpyrimidines and related compounds as potential modulator agents of the VEGF, hTERT and c-Myc oncogenes. Bioorg Med Chem 2019; 27:880-887. [PMID: 30733086 DOI: 10.1016/j.bmc.2019.01.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 01/21/2019] [Accepted: 01/29/2019] [Indexed: 01/08/2023]
Abstract
Twenty-four derivatives structurally related to honokiol have been synthesized and biologically evaluated. IC50 values were determined towards the HT-29, MCF-7 and HEK-293 cell lines. Some of these derivatives exhibited comparable or lower IC50 values than honokiol towards the HT-29 and MCF-7 cell lines or else higher selectivity indexes than the natural product. Twelve selected derivatives were evaluated for their ability to inhibit the expression of the VEGFA, hTERT and c-Myc genes and also to inhibit the production of total c-Myc protein and the secretion of the VEGF protein. One of the most promising compounds, 3-(2,4-dimethoxyphenyl)pyridine, may be a good candidate for further studies as an anticancer agent as it is able to improve the effect shown by honokiol in downregulating all gene expression and protein production at a safe concentration for non-tumor cells.
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Affiliation(s)
- Celia Martín-Beltrán
- Dept. de Química Inorgánica y Orgánica, Universidad Jaume I, E-12071 Castellón, Spain
| | - María Sánchez-Peris
- Dept. de Química Inorgánica y Orgánica, Universidad Jaume I, E-12071 Castellón, Spain
| | - Laura Conesa-Milián
- Dept. de Química Inorgánica y Orgánica, Universidad Jaume I, E-12071 Castellón, Spain
| | - Eva Falomir
- Dept. de Química Inorgánica y Orgánica, Universidad Jaume I, E-12071 Castellón, Spain
| | - Juan Murga
- Dept. de Química Inorgánica y Orgánica, Universidad Jaume I, E-12071 Castellón, Spain.
| | - Miguel Carda
- Dept. de Química Inorgánica y Orgánica, Universidad Jaume I, E-12071 Castellón, Spain
| | - J Alberto Marco
- Dept. de Química Orgánica, Universidad de Valencia, 46100 Burjassot, Valencia, Spain
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157
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Payili N, Rekula SR, Aitha A, Mutha VVSRNAK, Gangu Naidu C, Yennam S. Synthesis of dibenzo[a,d]cycloheptanoids via aryne insertion into 2-arylidene-1,3-indandiones. Org Biomol Chem 2019; 17:9442-9446. [DOI: 10.1039/c9ob01900f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A cascade synthetic strategy for the direct synthesis of dibenzo[a,d]cycloheptanoids and dibenz[a,c]anthracene-9,14-dione derivatives from aryne precursors has been developed.
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Affiliation(s)
- Nagaraju Payili
- Chemistry Services
- GVK Biosciences Pvt. Ltd
- Hyderabad 500076
- India
- Vignan's Foundation for Science
| | | | - Anjaiah Aitha
- Chemistry Services
- GVK Biosciences Pvt. Ltd
- Hyderabad 500076
- India
| | | | - Challa Gangu Naidu
- Vignan's Foundation for Science
- Technology and Research (Deemed to be University) (VFSTRU)
- Guntur 522213
- India
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158
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Roy T, Gaykar RN, Bhattacharjee S, Biju AT. The aryne Sommelet–Hauser rearrangement. Chem Commun (Camb) 2019; 55:3004-3007. [DOI: 10.1039/c9cc00629j] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An aryne induced transition-metal-free and mild Sommelet–Hauser rearrangement of tertiary benzylamines for the synthesis of α-aryl amino acid derivatives in moderate to good yields and with broad substrate scope is presented.
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Affiliation(s)
- Tony Roy
- Organic Chemistry Division
- CSIR-National Chemical Laboratory (CSIR-NCL)
- Pune 411008
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Rahul N. Gaykar
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore-560012
- India
| | | | - Akkattu T. Biju
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore-560012
- India
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159
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Sharma A, Gogoi P. A cascade process for the synthesis of ortho-formyl allyl aryl ethers and 2H-chromen-2-ol derivatives from arynes via trapping of o-quinone methide with an activated alkene. Org Biomol Chem 2019; 17:333-346. [DOI: 10.1039/c8ob02507j] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A transition-metal free synthetic strategy for the direct synthesis of ortho-formyl substituted allyl aryl ethers and 2H-chromen-2-ol derivatives via a cascade three-component coupling of arynes, activated alkene and N,N-dimethylformamide.
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Affiliation(s)
- Abhilash Sharma
- Applied Organic Chemistry Group
- Chemical Science and Technology Division
- CSIR-North East Institute of Science and Technology
- Jorhat 785006
- India
| | - Pranjal Gogoi
- Applied Organic Chemistry Group
- Chemical Science and Technology Division
- CSIR-North East Institute of Science and Technology
- Jorhat 785006
- India
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160
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Meerakrishna RS, Shanmugam P. Synthesis of blue-red emissive amido-substituted di(het)aryl and tri(het)aryl amine derivatives via chemoselective N-mono and N,N-diarylation of (het) aryl amino amides using benzyne/arynes. NEW J CHEM 2019. [DOI: 10.1039/c8nj05823g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chemoselective synthesis of amide-substituted triaryl and diaryl amines by N-mono and N,N-diarylation of (het)aryl amino amides using arynes has been reported. Selected triarylamines showed blue-red emission.
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Affiliation(s)
| | - Ponnusamy Shanmugam
- Organic and Bio-Organic Chemistry Division, CSIR-Central Leather Research Institute (CLRI)
- Chennai-600020
- India
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161
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Novanna M, Kannadasan S, Shanmugam P. Phosphotungstic acid mediated, microwave assisted solvent-free green synthesis of highly functionalized 2ˈ-spiro and 2, 3-dihydro quinazolinone and 2-methylamino benzamide derivatives from aryl and heteroaryl 2-amino amides. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2018.12.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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162
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Zhang Y, Xiong W, Cen J, Yan W, Wu Y, Qi C, Wu W, Jiang H. Direct bromocarboxylation of arynes using allyl bromides and carbon dioxide. Chem Commun (Camb) 2019; 55:12304-12307. [DOI: 10.1039/c9cc05495b] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An unprecedented multicomponent reaction involving arynes, allyl bromides, and CO2 has been developed to construct various allyl o-bromobenzoate scaffolds.
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Affiliation(s)
- Yu Zhang
- Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Wenfang Xiong
- Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Jinghe Cen
- Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Wuxin Yan
- Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Yaodan Wu
- Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Chaorong Qi
- Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Wanqing Wu
- Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Huanfeng Jiang
- Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
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163
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Xiao P, Su S, Wang W, Cao W, Chen J, Li J, Chen Y. Sequential cycloaddition and ring expansion reaction of arynes and methylenebenzothiopheneones: synthesis of a benzo-fused eight-membered ring via sulfonium ylides. RSC Adv 2019; 9:39119-39123. [PMID: 35540652 PMCID: PMC9075993 DOI: 10.1039/c9ra09332j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 11/18/2019] [Indexed: 11/21/2022] Open
Abstract
Efficient construction of benzo-fused eight-membered ring containing sulfur. New reaction profile with sulfonium ylides.
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Affiliation(s)
- Peng Xiao
- Department of Chemistry
- Innovative Drug Research Center
- College of Sciences & Institute for Sustainable Energy
- Shanghai University
- Shanghai 200444
| | - Shikuan Su
- Department of Chemistry
- Innovative Drug Research Center
- College of Sciences & Institute for Sustainable Energy
- Shanghai University
- Shanghai 200444
| | - Wei Wang
- Department of Chemistry
- Innovative Drug Research Center
- College of Sciences & Institute for Sustainable Energy
- Shanghai University
- Shanghai 200444
| | - Weiguo Cao
- Department of Chemistry
- Innovative Drug Research Center
- College of Sciences & Institute for Sustainable Energy
- Shanghai University
- Shanghai 200444
| | - Jie Chen
- Department of Chemistry
- Innovative Drug Research Center
- College of Sciences & Institute for Sustainable Energy
- Shanghai University
- Shanghai 200444
| | - Jian Li
- Department of Chemistry
- Innovative Drug Research Center
- College of Sciences & Institute for Sustainable Energy
- Shanghai University
- Shanghai 200444
| | - Yali Chen
- Department of Chemistry
- Innovative Drug Research Center
- College of Sciences & Institute for Sustainable Energy
- Shanghai University
- Shanghai 200444
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164
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Feng S, Li S, Li J, Wei J. Palladium-catalyzed annulation of N-alkoxy benzsulfonamides with arynes by C–H functionalization: access to dibenzosultams. Org Chem Front 2019. [DOI: 10.1039/c8qo01311j] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Palladium-catalyzed C–H/N–H functionalization of N-alkoxy benzsulfonamides with arynes provides dibenzosultams via C–C/C–N bond formation, accompanied by an unexpected N–O bond cleavage.
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Affiliation(s)
- Simin Feng
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
| | - Shan Li
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
| | - Jing Li
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
| | - Junfa Wei
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
- Key Laboratory for Macromolecular Science of Shaanxi Province
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165
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Liu B, Mao C, Hu Q, Yao L, Hu Y. Direct methylation and carbonylation of in situ generated arynes via HDDA-Wittig coupling. Org Chem Front 2019. [DOI: 10.1039/c9qo00621d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A high-efficiency HDDA-Wittig coupling strategy for synthesis of fully functionalized benzenes is reported. Direct methylation and carbonylation of aryne intermediates reacted with phosphorus ylides to form the carbonylated 2,3-dihydro-1H-indenes.
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Affiliation(s)
- Baohua Liu
- Key Laboratory of Functional Molecular Solids
- Ministry of Education; Anhui Laboratory of Molecule-Based Materials
- State Laboratory Cultivation Base; College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu
| | - Chunyan Mao
- Key Laboratory of Functional Molecular Solids
- Ministry of Education; Anhui Laboratory of Molecule-Based Materials
- State Laboratory Cultivation Base; College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu
| | - Qiong Hu
- Key Laboratory of Functional Molecular Solids
- Ministry of Education; Anhui Laboratory of Molecule-Based Materials
- State Laboratory Cultivation Base; College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu
| | - Liangliang Yao
- Key Laboratory of Functional Molecular Solids
- Ministry of Education; Anhui Laboratory of Molecule-Based Materials
- State Laboratory Cultivation Base; College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu
| | - Yimin Hu
- Key Laboratory of Functional Molecular Solids
- Ministry of Education; Anhui Laboratory of Molecule-Based Materials
- State Laboratory Cultivation Base; College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu
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166
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Jiang H, Zhang Y, Xiong W, Cen J, Wang L, Cheng R, Qi C, Wu W. A Three-Phase Four-Component Coupling Reaction: Selective Synthesis of o-Chloro Benzoates by KCl, Arynes, CO2, and Chloroalkanes. Org Lett 2018; 21:345-349. [DOI: 10.1021/acs.orglett.8b03193] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Yu Zhang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Wenfang Xiong
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Jinghe Cen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Lu Wang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Ruixiang Cheng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Chaorong Qi
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
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167
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Kwon J, Kim BM. Synthesis of Arenesulfonyl Fluorides via Sulfuryl Fluoride Incorporation from Arynes. Org Lett 2018; 21:428-433. [PMID: 30592614 DOI: 10.1021/acs.orglett.8b03610] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Transition-metal-free multicomponent reactions involving aryne precursors, secondary amines, and sulfuryl fluoride are reported herein. Zwitterionic intermediates formed from the reaction of arynes with amine nucleophiles can capture SO2F2 under mild conditions, offering a novel and practical protocol for the synthesis of 2-dialkyl-, 2-alkylaryl-, or 2-diarylamino-substituted arenesulfonyl fluoride derivatives in good to excellent yields.
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Affiliation(s)
- Jungmin Kwon
- Department of Chemistry, College of Natural Sciences , Seoul National University , 1 Gwanak-ro , Gwanak-gu, Seoul 08826 , Republic of Korea
| | - B Moon Kim
- Department of Chemistry, College of Natural Sciences , Seoul National University , 1 Gwanak-ro , Gwanak-gu, Seoul 08826 , Republic of Korea
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168
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Suh SE, Chen S, Houk KN, Chenoweth DM. The mechanism of the triple aryne-tetrazine reaction cascade: theory and experiment. Chem Sci 2018; 9:7688-7693. [PMID: 30542547 PMCID: PMC6238107 DOI: 10.1039/c8sc01796d] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 08/10/2018] [Indexed: 12/31/2022] Open
Abstract
This article describes an experimental and computational investigation on the possible aryne reactivity modes in the course of the reaction of two highly energetic molecules, an aryne and a 1,2,4,5-tetrazine. Beyond the triple aryne-tetrazine (TAT) reaction, it was observed that combinations of several reactivity modes afford several heterocyclic compounds. Density Functional Theory (DFT) calculations of competition between a second Diels-Alder reaction and the nucleophilic addition pathways indicates the latter to be more favorable. Crossover experiments and computational study of the proton transfer step reveal that the reaction proceeds intermolecularly with the assistance of a water molecule, rather than intramolecularly. The resulting enamine intermediate was found to undergo either a stepwise formal [2 + 2] or [4 + 2] cycloaddition, and their energetic profiles were compared against each other. Isolation of an ene-product and a rearranged product shows the potential competition with oxidation/desaturation. These studies show how multiple arynes react with a highly reactive starting material and provide guidance for future applications of aryne-based multicomponent cascade reactions.
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Affiliation(s)
- Sung-Eun Suh
- Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104 , USA .
| | - Shuming Chen
- Department of Chemistry and Biochemistry , University of California , Los Angeles , California 90095-1569 , USA
| | - K N Houk
- Department of Chemistry and Biochemistry , University of California , Los Angeles , California 90095-1569 , USA
| | - David M Chenoweth
- Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104 , USA .
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169
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Shamsabadi A, Chudasama V. A facile route to 1H- and 2H-indazoles from readily accessible acyl hydrazides by exploiting a novel aryne-based molecular rearrangement. Chem Commun (Camb) 2018; 54:11180-11183. [PMID: 30229253 DOI: 10.1039/c8cc06556j] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we report the transformation of readily synthesised acyl hydrazides into 2-hydrazobenzophenones via a novel molecular rearrangement pathway using aryne chemistry. The developed reaction protocol is performed under relatively mild conditions and is tolerant of a wide variety of functional groups, and the 2-hydrazobenzophenone products provide access to both 1H- and 2H-indazoles from a single intermediate.
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170
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Singh C, Prakasham AP, Gangwar MK, Ghosh P. Binuclear Fused 5-membered Palladacycle and Palladium Complex of Amido-Functionalized N-heterocyclic Carbene Precatalysts for the One-Pot Tandem Hiyama Alkynylation/Cyclization Reactions. ChemistrySelect 2018. [DOI: 10.1002/slct.201801667] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Chandan Singh
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai 400 076
| | - A. P. Prakasham
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai 400 076
| | - Manoj Kumar Gangwar
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai 400 076
| | - Prasenjit Ghosh
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai 400 076
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171
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Miyabe H. Transition-Metal-Free Activation of Amide Bond by Arynes. Molecules 2018; 23:molecules23092145. [PMID: 30150534 PMCID: PMC6225192 DOI: 10.3390/molecules23092145] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 08/20/2018] [Accepted: 08/24/2018] [Indexed: 11/16/2022] Open
Abstract
Highly reactive arynes activate the N–C and C=O bonds of amide groups under transition metal-free conditions. This review highlights the insertion of arynes into the N–C and C=O bonds of the amide group. The insertion of arynes into the N–C bond gives the unstable four-membered ring intermediates, which are easily converted into ortho-disubstituted arenes. On the other hand, the selective insertion of arynes into the C=O bond is observed when the sterically less-hindered formamides are employed to give a reactive transient intermediate. Therefore, the trapping reactions of transient intermediates with a variety of reactants lead to the formation of oxygen atom-containing heterocycles. As relative functional groups are activated, the reactions of arynes with sulfinamides, phosphoryl amides, cyanamides, sulfonamides, thioureas, and vinylogous amides are also summarized.
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Affiliation(s)
- Hideto Miyabe
- School of Pharmacy, Hyogo University of Health Sciences, Minatojima 1-3-6, Chuo-ku, Kobe 650-8530, Japan.
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172
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Addepalli Y, Yu Z, Ji J, Zou C, Wang Z, He Y. Tandem Diels-Alder/oxidation-aromatization reactions involving 2-styrylchromones and arynes. Org Biomol Chem 2018; 16:6077-6085. [PMID: 30091440 DOI: 10.1039/c8ob01199k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transition-metal-free Diels-Alder and tandem Diels-Alder/oxidation-aromatization reactions of 2-styrylchromones with arynes have been demonstrated under mild reaction conditions with a wide range of substrates. The tandem process afforded functionalized benzo[c]xanthone derivatives in moderate to good yields. This efficient protocol allows rapid access to either dihydrobenzo[c]xanthone and benzo[c]xanthone derivatives selectively by simply changing the atmosphere of the reaction.
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Affiliation(s)
- Yesu Addepalli
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China.
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173
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Yoshida S. Controlled Reactive Intermediates Enabling Facile Molecular Conjugation. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20180104] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Suguru Yoshida
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
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174
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Li SJ, Wang Y, Xu JK, Xie D, Tian SK, Yu ZX. Formal Insertion of Imines (or Nitrogen Heteroarenes) and Arynes into the C–Cl Bond of Carbon Tetrachloride. Org Lett 2018; 20:4545-4548. [DOI: 10.1021/acs.orglett.8b01845] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Sheng-Jun Li
- Hefei National Laboratory for Physical Sciences at the Microscale, Center for Excellence in Molecular Synthesis, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yi Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Jing-Kun Xu
- Hefei National Laboratory for Physical Sciences at the Microscale, Center for Excellence in Molecular Synthesis, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Dong Xie
- Hefei National Laboratory for Physical Sciences at the Microscale, Center for Excellence in Molecular Synthesis, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Shi-Kai Tian
- Hefei National Laboratory for Physical Sciences at the Microscale, Center for Excellence in Molecular Synthesis, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zhi-Xiang Yu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
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175
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Gaykar RN, Bhunia A, Biju AT. Employing Arynes for the Generation of Aryl Anion Equivalents and Subsequent Reaction with Aldehydes. J Org Chem 2018; 83:11333-11340. [DOI: 10.1021/acs.joc.8b01549] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rahul N. Gaykar
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Anup Bhunia
- Organic Chemistry Division, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune 411008, India
| | - Akkattu T. Biju
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
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176
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Kalvacherla B, Batthula S, Balasubramanian S, Palakodety RK. Transition-Metal-Free Cyclization of Propargylic Alcohols with Aryne: Synthesis of 3-Benzofuranyl-2-oxindole and 3-Spirooxindole Benzofuran Derivatives ⊥. Org Lett 2018; 20:3824-3828. [PMID: 29920110 DOI: 10.1021/acs.orglett.8b01414] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
An unprecedented base-mediated cyclization of propargylic alcohols with aryne is reported, providing a novel method for the synthesis of 3-benzofuranyl-2-oxindole and 3-spirooxindole benzofuran scaffolds via a propargyl Claisen rearrangement/cycloaddition pathway. The nature of the substituent on acetylene group of propargylic alcohol influences the outcome of the reaction. The protocol offers a transition-metal-free and operationally simple methodology with broad substrate scope as a ready access to complex oxindole-linked heterocyclic compounds.
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Affiliation(s)
- Babachary Kalvacherla
- D-211, Discovery Laboratory, Organic and Biomolecular Chemistry Division , CSIR-Indian Institute of Chemical Technology , Hyderabad - 500007 , India.,Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110025 , India
| | - Srinivas Batthula
- D-211, Discovery Laboratory, Organic and Biomolecular Chemistry Division , CSIR-Indian Institute of Chemical Technology , Hyderabad - 500007 , India
| | - Sridhar Balasubramanian
- Center for X-ray Crystallography , CSIR-Indian Institute of Chemical Technology , Hyderabad - 500007 , India
| | - Radha Krishna Palakodety
- D-211, Discovery Laboratory, Organic and Biomolecular Chemistry Division , CSIR-Indian Institute of Chemical Technology , Hyderabad - 500007 , India
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177
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AcOH-catalyzed aza-Michael addition/N-nitrosation: An efficient approach to CF2HCH2-containing N-nitrosoamines. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.05.073] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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178
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Stereoselective synthesis of 1,2-annulated-C-Aryl glycosides from carbohydrate-derived terminally unsubstituted dienes and arynes: Application towards synthesis of sugar-fused- or branched- naphthalenes, and C-Aryl glycosides. Carbohydr Res 2018; 465:29-34. [DOI: 10.1016/j.carres.2018.06.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 06/04/2018] [Accepted: 06/04/2018] [Indexed: 02/03/2023]
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179
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Fan R, Liu B, Zheng T, Xu K, Tan C, Zeng T, Su S, Tan J. An aryne triggered ring-opening fluorination of cyclic thioethers with potassium fluoride. Chem Commun (Camb) 2018; 54:7081-7084. [PMID: 29877537 DOI: 10.1039/c8cc03766c] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Herein, we report an aryne triggered ring-opening fluorination protocol of a great variety of saturated sulfur heterocycles. A key factor for the success is the identification of a suitable mediator. Compared to previous methods, this transition-metal free protocol employs low-cost potassium fluoride as the fluorine source. The operational simplicity and mild reaction conditions allow for the rapid synthesis of a wide range of aliphatic fluoride compounds in good yields.
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Affiliation(s)
- Rong Fan
- Department of Organic Chemistry, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
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180
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Picazo E, Anthony SM, Giroud M, Simon A, Miller MA, Houk KN, Garg NK. Arynes and Cyclic Alkynes as Synthetic Building Blocks for Stereodefined Quaternary Centers. J Am Chem Soc 2018; 140:7605-7610. [PMID: 29716194 PMCID: PMC6467087 DOI: 10.1021/jacs.8b02875] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We report a facile method to synthesize stereodefined quaternary centers from reactions of arynes and related strained intermediates using β-ketoester-derived substrates. The conversion of β-ketoesters to chiral enamines is followed by reaction with in situ generated strained arynes or cyclic alkynes. Hydrolytic workup provides the arylated or alkenylated products in enantiomeric excesses as high as 96%. We also describe the one-pot conversion of a β-ketoester substrate to the corresponding enantioenriched α-arylated product. Computations show how chirality is transferred from the N-bound chiral auxiliary to the final products. These are the first theoretical studies of aryne trapping by chiral nucleophiles to set new stereocenters. Our approach provides a solution to the challenging problem of stereoselective β-ketoester arylation/alkenylation, with formation of a quaternary center.
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Affiliation(s)
| | | | - Maude Giroud
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Adam Simon
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Margeaux A. Miller
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Neil K. Garg
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
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181
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Shu WM, Liu S, He JX, Wang S, Wu AX. Sequential σ-Bond Insertion/Benzannulation Involving Arynes: Selective Synthesis of Polysubstituted Naphthalenes. J Org Chem 2018; 83:9156-9165. [PMID: 29877082 DOI: 10.1021/acs.joc.8b01207] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
An interesting σ-bond insertion/benzannulation reaction for the synthesis of polysubstituted naphthalene derivatives has been developed from readily accessible ketones, arynes, and alkynoates. This practical and transition-metal-free method provides a novel route to diverse naphthalenes through a substrate-controlled rearrangement reaction with the cleavage of C-C bonds.
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Affiliation(s)
- Wen-Ming Shu
- College of Chemistry and Environmental Engineering , Yangtze University , Jingzhou 434023 , PR China
| | - Shan Liu
- College of Chemistry and Environmental Engineering , Yangtze University , Jingzhou 434023 , PR China
| | - Jian-Xin He
- College of Chemistry and Environmental Engineering , Yangtze University , Jingzhou 434023 , PR China
| | - Shuai Wang
- College of Chemistry and Environmental Engineering , Yangtze University , Jingzhou 434023 , PR China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry , Central China Normal University , Wuhan 430079 , PR China
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182
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Jian H, Wang Q, Wang WH, Li ZJ, Gu CZ, Dai B, He L. Divergent synthesis of functionalized thioethers via multicomponent reaction of benzynes. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.04.072] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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183
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Chang D, Gao F, Shi L. Potassium tert -butoxide-mediated generation of arynes from o -bromoacetophenone derivatives. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.03.058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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184
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Cui L, Zhu G, Liu S, Zhao X, Qu J, Wang B. Stereoselective Sequential [4+2]/[2+2] Cycloadditions Involving 2-Alkenylindolenines: An Approach to Densely Functionalized Benzo[b]indolizidines. J Org Chem 2018; 83:5044-5051. [DOI: 10.1021/acs.joc.8b00346] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Longchen Cui
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Guodong Zhu
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Siyuan Liu
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Xiangyu Zhao
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Jingping Qu
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Baomin Wang
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
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185
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Bugaenko DI, Karchava AV, Yurovskaya MA. Arynes, diaryliodonium salts and azine N-oxides in transition metal-free electrophilic N-arylation. RUSSIAN CHEMICAL REVIEWS 2018. [DOI: 10.1070/rcr4781] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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186
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Lv C, Wan C, Liu S, Lan Y, Li Y. Aryne Trifunctionalization Enabled by 3-Silylaryne as a 1,2-Benzdiyne Equivalent. Org Lett 2018; 20:1919-1923. [DOI: 10.1021/acs.orglett.8b00469] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chunjie Lv
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, 400030, P. R. China
| | - Caiwen Wan
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, 400030, P. R. China
| | - Song Liu
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, 400030, P. R. China
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, 400030, P. R. China
| | - Yang Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, 400030, P. R. China
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187
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Idiris FIM, Majesté CE, Craven GB, Jones CR. Intramolecular hydride transfer onto arynes: redox-neutral and transition metal-free C(sp 3)-H functionalization of amines. Chem Sci 2018; 9:2873-2878. [PMID: 29732071 PMCID: PMC5914459 DOI: 10.1039/c8sc00181b] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 02/07/2018] [Indexed: 02/01/2023] Open
Abstract
Transition metal-free intramolecular hydride transfer onto arynes is reported for the first time. This unique transformation is utilized in redox-neutral intermolecular α-functionalization reactions of different tertiary amines, generating C(sp3)-C(sp3/sp2/sp) bonds in a single synthetic operation. Deuterium labeling studies support initial cleavage of the α-C-H bond via intramolecular 1,5-hydride transfer onto the aryne, which leads to activation of a range of integrated pronucleophiles and ultimately affords a new approach to cross-dehydrogenative coupling reactions which utilize aryne intermediates.
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Affiliation(s)
- Fahima I M Idiris
- School of Biological and Chemical Sciences , Queen Mary University of London , Mile End Road , London , E1 4NS , UK .
| | - Cécile E Majesté
- School of Biological and Chemical Sciences , Queen Mary University of London , Mile End Road , London , E1 4NS , UK .
| | - Gregory B Craven
- School of Biological and Chemical Sciences , Queen Mary University of London , Mile End Road , London , E1 4NS , UK .
| | - Christopher R Jones
- School of Biological and Chemical Sciences , Queen Mary University of London , Mile End Road , London , E1 4NS , UK .
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188
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Xu H, He J, Shi J, Tan L, Qiu D, Luo X, Li Y. Domino Aryne Annulation via a Nucleophilic-Ene Process. J Am Chem Soc 2018; 140:3555-3559. [PMID: 29421868 DOI: 10.1021/jacs.8b01005] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
1,2-Benzdiyne equivalents possess the unique property that they can react with two arynophiles through iteratively generated 1,2- and 2,3-aryne intermediates. Upon rational modification on the second leaving group of these aryne precursors, a domino aryne annulation approach was developed through a nucleophilic-ene reaction sequence. Various benzo-fused N-heterocyclic frameworks were achievable under transition metal-free conditions with a broad substrate scope.
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Affiliation(s)
- Hai Xu
- School of Chemistry and Chemical Engineering , Chongqing University , 174 Shazheng Street , Chongqing 400030 , P. R. China
| | - Jia He
- School of Chemistry and Chemical Engineering , Chongqing University , 174 Shazheng Street , Chongqing 400030 , P. R. China
| | - Jiarong Shi
- School of Chemistry and Chemical Engineering , Chongqing University , 174 Shazheng Street , Chongqing 400030 , P. R. China
| | - Liang Tan
- School of Chemistry and Chemical Engineering , Chongqing University , 174 Shazheng Street , Chongqing 400030 , P. R. China
| | - Dachuan Qiu
- School of Chemistry and Chemical Engineering , Chongqing University , 174 Shazheng Street , Chongqing 400030 , P. R. China
| | - Xiaohua Luo
- School of Chemistry and Chemical Engineering , Chongqing University , 174 Shazheng Street , Chongqing 400030 , P. R. China
| | - Yang Li
- School of Chemistry and Chemical Engineering , Chongqing University , 174 Shazheng Street , Chongqing 400030 , P. R. China
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189
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Chen R, Chen J, Zhang J, Wan X. Combination of Tetrabutylammonium Iodide (TBAI) withtert-Butyl Hydroperoxide (TBHP): An Efficient Transition-Metal-Free System to Construct Various Chemical Bonds. CHEM REC 2018. [DOI: 10.1002/tcr.201700069] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Rongxiang Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P. R. China. Fax: (+86) 512-6588-0334
| | - Jijun Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P. R. China. Fax: (+86) 512-6588-0334
| | - Jie Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P. R. China. Fax: (+86) 512-6588-0334
| | - Xiaobing Wan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P. R. China. Fax: (+86) 512-6588-0334
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190
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Pandya VG, Mhaske SB. Divergent Synthesis of Oxindolylidene Acetates and Spirooxindolopyrrolidones from Arynes. Org Lett 2018. [DOI: 10.1021/acs.orglett.7b03661] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Virat G. Pandya
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-National Chemical Laboratory Campus, Pune 411008, India
| | - Santosh B. Mhaske
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-National Chemical Laboratory Campus, Pune 411008, India
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191
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Sun CH, Lu Y, Zhang Q, Lu R, Bao LQ, Shen MH, Xu HD. Selective S-arylation of 2-oxazolidinethiones and selective N-arylation of 2-benzoxazolinones/2-benzimidazolinones. Org Biomol Chem 2018; 15:4058-4063. [PMID: 28443868 DOI: 10.1039/c7ob00040e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
There exist three possible patterns for the reaction of cyclic 2-oxazolidinethione and 2-benzoxazolidinethione with arynes, namely (a) S-arylation, (b) N-arylation, and (c) aryne insertion into the thiocarbonyl group (C[double bond, length as m-dash]S). Our studies demonstrate that S-arylation wins out affording S-aryl dihydrooxazoles. In contrast, for related reactions of cyclic 2-benzoxazolinone and 2-benzimidazolinone with arynes, it is found that N-arylation outcompetes O-arylation and aryne insertion into the C[double bond, length as m-dash]O group to give N-aryl 2-benzoxazolinones and N-aryl 2-benzimidazolinones.
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Affiliation(s)
- Chu-Han Sun
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou, Jiangsu Province 213164, China.
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192
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Garg P, Singh A. Unmasking Dipole Character of Acyl Ketene Dithioacetals via a Cascade Reaction with Arynes: Synthesis of Benzo[b]thiophenes. Org Lett 2018; 20:1320-1323. [PMID: 29446635 DOI: 10.1021/acs.orglett.8b00053] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
An unusual strategy toward novel substituted benzo[b]thiophenes has been developed. The generation of arynes in the presence of acyl ketene dithioacetals resulted in a cascade reaction involving [3 + 2] cycloaddition, and a dealkylative arylation of a thioether moiety to afford 2,3-disubstuted benzo[b]thiophenes. This route represents an expeditious approach to benzothiophenes that employs acyl ketene dithioacetals as dipoles.
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Affiliation(s)
- Parul Garg
- Department of Chemistry, Indian Institute of Technology Kanpur , Kanpur, UP-208016, India
| | - Anand Singh
- Department of Chemistry, Indian Institute of Technology Kanpur , Kanpur, UP-208016, India
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193
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Zhang L, Li X, Sun Y, Zhao W, Luo F, Huang X, Lin L, Yang Y, Peng B. Mild synthesis of triarylsulfonium salts with arynes. Org Biomol Chem 2018; 15:7181-7189. [PMID: 28812767 DOI: 10.1039/c7ob01596h] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Reactions between arynes and alkyl sulfides have been extensively studied over the past few decades. These reactions commonly end with a dealkylation process and thus deliver thioethers as final products. In contrast, the transformation described furnishes valuable triarylsulfonium salts, in lieu of thioethers, from arynes and diarylsulfides. The reaction features mild conditions and a broad substrate scope. A suite of functional groups such as ketones, esters, nitriles, aryl ethers and aryl halides is tolerated, which can be issues faced by traditional synthetic methods. The practicality of the reaction and its extension to the synthesis of triphenyl selenonium salt are also exhibited herein.
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Affiliation(s)
- Lei Zhang
- Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, China.
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194
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Tan J, Zheng T, Xu K, Liu C. Aryne triggered [2,3]-sigmatropic rearrangement of allyl and propargyl thioethers. Org Biomol Chem 2018; 15:4946-4950. [PMID: 28569310 DOI: 10.1039/c7ob00914c] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An efficient protocol for [2,3]-sigmatropic rearrangement of allyl and propargyl thioethers is reported. The key sulfonium ylide intermediate is in situ formed via S-arylation of arynes. This transition metal-free method allows for ready access to a wide array of functionalized thioether derivatives in good to excellent yields.
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Affiliation(s)
- Jiajing Tan
- Department of Organic Chemistry, Faculty of Science, Beijing University of Chemical Technology, Beijing 100029, China.
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195
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Pal KB, Mahanti M, Nilsson UJ. Arynes in the Monoarylation of Unprotected Carbohydrate Amines. Org Lett 2018; 20:616-619. [DOI: 10.1021/acs.orglett.7b03741] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kumar Bhaskar Pal
- Centre for Analysis and Synthesis Department of Chemistry, Lund University, Box 124, 221 00 Lund, Sweden
| | - Mukul Mahanti
- Centre for Analysis and Synthesis Department of Chemistry, Lund University, Box 124, 221 00 Lund, Sweden
| | - Ulf J. Nilsson
- Centre for Analysis and Synthesis Department of Chemistry, Lund University, Box 124, 221 00 Lund, Sweden
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196
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Ahire MM, Thoke MB, Mhaske SB. Application of Sulfur Ylides in 1,2-Difunctionalization of Arynes via Insertion into a C-S σ-Bond. Org Lett 2018; 20:848-851. [PMID: 29350042 DOI: 10.1021/acs.orglett.7b04003] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A novel reactivity of sulfur ylides has been demonstrated in a transition-metal-free protocol to access ortho-substituted thioanisole derivatives by insertion of arynes into a C-S σ-bond in moderate to good yields. The reaction involves the formation of C-C and C-S bonds and consecutive breaking of two C-S bonds under operationally mild reaction conditions.
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Affiliation(s)
- Milind M Ahire
- Division of Organic Chemistry and ‡Academy of Scientific and Innovative Research (AcSIR), CSIR-National Chemical Laboratory , Pune 411008, India
| | - Mahesh B Thoke
- Division of Organic Chemistry and ‡Academy of Scientific and Innovative Research (AcSIR), CSIR-National Chemical Laboratory , Pune 411008, India
| | - Santosh B Mhaske
- Division of Organic Chemistry and ‡Academy of Scientific and Innovative Research (AcSIR), CSIR-National Chemical Laboratory , Pune 411008, India
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197
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Meerakrishna RS, Athira M, Shanmugam P. Unusual [3+2] Spiroannulation and Creation of Stereogenic Quaternary Center at C‐3 of Oxindole via Addition of (Het)arynes to Isomerized Morita‐Baylis‐Hillman Adduct of Isatin. ChemistrySelect 2018. [DOI: 10.1002/slct.201702356] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
| | - Mohanakumaran Athira
- Organic and Bio Organic Chemistry DivisionCSIR-Central Leather Research Institute (CLRI), Adyar Chennai- 600020 INDIA
| | - Ponnusamy Shanmugam
- Organic and Bio Organic Chemistry DivisionCSIR-Central Leather Research Institute (CLRI), Adyar Chennai- 600020 INDIA
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198
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Wang Z, Addepalli Y, He Y. Construction of Polycyclic Indole Derivatives via Multiple Aryne Reactions with Azaheptafulvenes. Org Lett 2018; 20:644-647. [DOI: 10.1021/acs.orglett.7b03789] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Zhen Wang
- Chongqing Key Laboratory
of Natural Product Synthesis and Drug Research, School of Pharmaceutical
Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Yesu Addepalli
- Chongqing Key Laboratory
of Natural Product Synthesis and Drug Research, School of Pharmaceutical
Sciences, Chongqing University, Chongqing 401331, P.R. China
| | - Yun He
- Chongqing Key Laboratory
of Natural Product Synthesis and Drug Research, School of Pharmaceutical
Sciences, Chongqing University, Chongqing 401331, P.R. China
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199
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Chen G, Hu M, Peng Y. Switchable Synthesis of 3-Substituted 1H-Indazoles and 3,3-Disubstituted 3H-Indazole-3-phosphonates Tuned by Phosphoryl Groups. J Org Chem 2018; 83:1591-1597. [PMID: 29283256 DOI: 10.1021/acs.joc.7b02857] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
3-Alkyl/aryl-1H-indazoles and 3-alkyl/aryl-3H-indazole-3-phosphonates were synthesized efficiently through a 1,3-dipolar cycloaddition reaction between α-substituted α-diazomethylphosphonates and arynes under simple reaction conditions. The product distribution was controlled by the phosphoryl group, which acted both as a tuning group and a traceless group in the reaction.
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Affiliation(s)
- Guihua Chen
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, P. R. China
| | - Minglin Hu
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, P. R. China
| | - Yungui Peng
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, P. R. China
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200
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Jia H, Guo Z, Liu H, Mao B, Shi X, Guo H. Tandem nucleophilic addition–cycloaddition of arynes with α-iminoesters: two concurrent pathways to imidazolidines. Chem Commun (Camb) 2018; 54:7050-7053. [DOI: 10.1039/c8cc03806f] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The tandem nucleophilic addition-cycloaddition reaction of arynes with α-iminoesters gave functionalized imidazolidine derivatives with high yields, complete regioselectivities, and excellent diastereo- and enantioselectivities.
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Affiliation(s)
- Hao Jia
- College of Science
- China Agricultural University
- Beijing 100193
- China
| | - Zhenyan Guo
- College of Science
- China Agricultural University
- Beijing 100193
- China
| | - Honglei Liu
- College of Science
- China Agricultural University
- Beijing 100193
- China
| | - Biming Mao
- College of Science
- China Agricultural University
- Beijing 100193
- China
| | - Xueyan Shi
- College of Plant Protection
- China Agricultural University
- Beijing 100193
- China
| | - Hongchao Guo
- College of Science
- China Agricultural University
- Beijing 100193
- China
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