1
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Rashid U, Bro-Jørgensen W, Harilal KB, Sreelakshmi PA, Mondal RR, Chittari Pisharam V, Parida KN, Geetharani K, Hamill JM, Kaliginedi V. Chemistry of the Au-Thiol Interface through the Lens of Single-Molecule Flicker Noise Measurements. J Am Chem Soc 2024; 146:9063-9073. [PMID: 38381861 PMCID: PMC10995995 DOI: 10.1021/jacs.3c14079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/01/2024] [Accepted: 02/01/2024] [Indexed: 02/23/2024]
Abstract
Chemistry of the Au-S interface at the nanoscale is one of the most complex systems to study, as the nature and strength of the Au-S bond change under different experimental conditions. In this study, using mechanically controlled break junction technique, we probed the conductance and analyzed Flicker noise for several aliphatic and aromatic thiol derivatives and thioethers. We demonstrate that Flicker noise can be used to unambiguously differentiate between stronger chemisorption (Au-SR) and weaker physisorption (Au-SRR') type interactions. The Flicker noise measurements indicate that the gold rearrangement in chemisorbed Au-SR junctions resembles that of the Au rearrangement in pure Au-Au metal contact breaking, which is independent of the molecular backbone structure and the resulting conductance. In contrast, thioethers showed the formation of a weaker physisorbed Au-SRR' type bond, and the Flicker noise measurement indicates the changes in the Au-anchoring group interface but not the Au-Au rearrangement like that in the Au-SR case. Additionally, by employing single-molecular conductance and Flicker noise analysis, we have probed the interfacial electric field-catalyzed ring-opening reaction of cyclic thioether under mild environmental conditions, which otherwise requires harsh chemical conditions for cleavage of the C-S bond. All of our conductance measurements are complemented by NEGF transport calculations. This study illustrates that the single-molecule conductance, together with the Flicker noise measurements can be used to tune and monitor chemical reactions at the single-molecule level.
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Affiliation(s)
- Umar Rashid
- Department
of Inorganic and Physical Chemistry, Indian
Institute of Science, Bangalore 560012, India
| | - William Bro-Jørgensen
- Department
of Chemistry and Nano-Science Center, University
of Copenhagen, Universitetsparken
5, DK-2100 Copenhagen
Ø, Denmark
| | - KB Harilal
- School
of Chemistry, Indian Institute of Science
Education and Research (IISER), Thiruvananthapuram 695551, Kerala, India
| | - PA Sreelakshmi
- Department
of Inorganic and Physical Chemistry, Indian
Institute of Science, Bangalore 560012, India
| | - Reetu Rani Mondal
- Department
of Inorganic and Physical Chemistry, Indian
Institute of Science, Bangalore 560012, India
| | - Varun Chittari Pisharam
- School
of Chemistry, Indian Institute of Science
Education and Research (IISER), Thiruvananthapuram 695551, Kerala, India
| | - Keshaba N. Parida
- School
of Chemistry, Indian Institute of Science
Education and Research (IISER), Thiruvananthapuram 695551, Kerala, India
| | - K. Geetharani
- Department
of Inorganic and Physical Chemistry, Indian
Institute of Science, Bangalore 560012, India
| | - Joseph M. Hamill
- Department
of Chemistry and Nano-Science Center, University
of Copenhagen, Universitetsparken
5, DK-2100 Copenhagen
Ø, Denmark
| | - Veerabhadrarao Kaliginedi
- Department
of Inorganic and Physical Chemistry, Indian
Institute of Science, Bangalore 560012, India
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2
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Duong T, Valenzuela EA, Ragains JR. Benzyne-Promoted, 1,2- cis-Selective O-Glycosylation with Benzylchalcogenoglycoside Donors. Org Lett 2023; 25:8526-8529. [PMID: 37970840 PMCID: PMC10696609 DOI: 10.1021/acs.orglett.3c03502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/11/2023] [Accepted: 11/15/2023] [Indexed: 11/19/2023]
Abstract
Here, we show that the reaction of benzylchalcogenoglycosides with benzyne in the presence of alcohols results in highly 1,2-cis-selective O-glycosylation in a solvent-dependent manner. Thioglycosides, selenoglycosides, and alcohols with a range of nucleophilicities lead to a productive reaction, and unusual protecting groups, auxiliary groups, and additives are avoided.
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Affiliation(s)
- Tiffany Duong
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70806, United States
| | - Erik Alvarez Valenzuela
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70806, United States
| | - Justin R. Ragains
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70806, United States
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3
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Chen J, Liu S, Su S, Fan R, Zhang R, Meng W, Tan J. Sulfonium-based precise alkyl transposition reactions. SCIENCE ADVANCES 2023; 9:eadi1370. [PMID: 37713480 PMCID: PMC10881050 DOI: 10.1126/sciadv.adi1370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 08/14/2023] [Indexed: 09/17/2023]
Abstract
S-adenosyl-L-methionine (SAM), a sulfonium-based cofactor, plays an important role in numerous biological processes as methyl donor. Inspired by the function of sulfonium motif in this nature's synthetic toolkit, we here present an aryne-activation strategy that the sulfonium intermediates in situ generated from thioethers display unique reactivity toward alkyl group transposition. Experimental and theoretical studies indicate that the reaction occurs in an intermolecular fashion where the TfO--incorporated [K(18-crown-6)] complex acts as a key promoter for this thermodynamically favored process. Next, a series of robust, easy-to-prepare sulfonium salts are designed and developed as electrophilic alkylation reagents accordingly. Both systems feature for broad scope, excellent selectivity, and simple operation. Moreover, we highlight the synthetic value through molecular editing and late-stage modification of complex scaffolds or even active pharmaceutical ingredients.
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Affiliation(s)
- Jian Chen
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Shilu Liu
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Shuaisong Su
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Rong Fan
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Ruirui Zhang
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Wei Meng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiajing Tan
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
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4
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Fan R, Liu S, Yan Q, Wei Y, Wang J, Lan Y, Tan J. Empowering boronic acids as hydroxyl synthons for aryne induced three-component coupling reactions. Chem Sci 2023; 14:4278-4287. [PMID: 37123174 PMCID: PMC10132127 DOI: 10.1039/d3sc00072a] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 03/13/2023] [Indexed: 03/16/2023] Open
Abstract
Boronic acids have become one of the most prevalent classes of reagents in modern organic synthesis, displaying various reactivity profiles via C-B bond cleavage. Herein, we describe the utilization of a readily available boronic acid as an efficient surrogate of hydroxide upon activation via fluoride complexation. The hitherto unknown aryne induced ring-opening reaction of cyclic sulfides and three-component coupling of fluoro-azaarenes are developed to exemplify the application value. Different from metal hydroxides or water, this novel hydroxy source displays mild activation conditions, great functionality tolerance and structural tunability, which shall engender a new synthetic paradigm and in a broad context offer new blueprints for organoboron chemistry. Detailed computational studies also recognize the fluoride activation mode, provide in-depth insights into the unprecedented mechanistic pathway and elucidate the reactivity difference of ArB(OH) x F y complexes, which fully support the experimental data.
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Affiliation(s)
- Rong Fan
- Department of Organic Chemistry, Beijing University of Chemical Technology Beijing 100029 China
| | - Shihan Liu
- Chongqing Key Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Chongqing University Chongqing 400030 China
| | - Qiang Yan
- Department of Organic Chemistry, Beijing University of Chemical Technology Beijing 100029 China
| | - Yun Wei
- Department of Organic Chemistry, Beijing University of Chemical Technology Beijing 100029 China
| | - Jingwen Wang
- Department of Organic Chemistry, Beijing University of Chemical Technology Beijing 100029 China
| | - Yu Lan
- Chongqing Key Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Chongqing University Chongqing 400030 China
- ZhengZhou JiShu Institute of AI Science Zhengzhou 450000 China
| | - Jiajing Tan
- Department of Organic Chemistry, Beijing University of Chemical Technology Beijing 100029 China
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5
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Xu H, Li X, Ma J, Zuo J, Song X, Lv J, Yang D. An electron donor–acceptor photoactivation strategy for the synthesis of S-aryl dithiocarbamates using thianthrenium salts under mild aqueous micellar conditions. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2023]
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6
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Chen D, Yang C, Li M, Zhao G, Wang W, Wang X, Quan Z. Recent Progress on Arylation with Aryne through Three-Component Reaction. CHINESE J ORG CHEM 2023. [DOI: 10.6023/cjoc202206006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
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7
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Anti-Markovnikov ring-opening of sulfonium salts with alkynes by visible light/copper catalysis. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1373-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Lapuh MI, Cormier G, Chergui S, Aitken DJ, Boddaert T. Preparation of Thietane Derivatives through Domino Photochemical Norrish Type II/Thia-Paternò–Büchi Reactions. Org Lett 2022; 24:8375-8380. [DOI: 10.1021/acs.orglett.2c03428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Maria I. Lapuh
- Université Paris-Saclay, CNRS, ICMMO, 91405 Orsay, France
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9
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Khandelwal M, Pemawat G, Khangarot RK. Recent Developments in Nucleophilic Fluorination with Potassium Fluoride (KF): A Review. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Manisha Khandelwal
- Mohanlal Sukhadia University Department of Chemistry UCOS, Durga Nursery Road 313001 Udaipur INDIA
| | - Gangotri Pemawat
- Mohanlal Sukhadia University Department of Chemistry UCOS, Durga Nursery Road 313001 Udaipur INDIA
| | - Rama Kanwar Khangarot
- Mohanlal Sukhadia University Department of Chemistry UCOS, Durga Nursery Road 313001 Udaipur INDIA
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10
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Liu J, Tang S, Zhao M, Huai J, Yu J, Zhao J, Li P. Reactivity of Vinyl Epoxides/Oxetanes/Cyclopropanes toward Arynes: Access to Functionalized Phenanthrenes. ACS OMEGA 2021; 6:35852-35865. [PMID: 34984314 PMCID: PMC8717566 DOI: 10.1021/acsomega.1c06166] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 12/08/2021] [Indexed: 06/14/2023]
Abstract
The reactivity of vinyl epoxides/oxetanes/cyclopropanes toward arynes has been demonstrated under mild conditions to give the corresponding phenanthrenes in moderate to good yields. This transition-metal-free cascade process involves a series of Diels-Alder reaction, ring-opening aromatization, and ene reaction. Various functionalized phenanthrenes could be synthesized utilizing the versatile hydroxy group. Interestingly, vinyl epoxides/oxiranes experience preferentially the Diels-Alder reaction toward arynes over nucleophilic attack of epoxides/oxiranes.
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11
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Chen L, Xuchen X, Wang F, Yang Y, Deng G, Liu Y, Liang Y. Double C-S bond formation via multiple Csp 3-H bond cleavage: synthesis of 4-hydroxythiazoles from amides and elemental sulfur under metal-free conditions. Org Biomol Chem 2021; 19:10068-10072. [PMID: 34762083 DOI: 10.1039/d1ob01989a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A novel and efficient approach for the synthesis of 4-hydroxythiazoles from amides and elemental sulfur has been developed. In the presence of P2O5, DMSO and HMPA, this metal-free protocol proceeds smoothly and tolerates a spectrum of functional groups. Furthermore, this strategy involves the process of double Csp3-S bond formation through the cleavage of multiple Csp3-H bonds for the first time.
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Affiliation(s)
- Liang Chen
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China. .,Huaihua Normal College, Huaihua 418008, China
| | - Xinyu Xuchen
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China.
| | - Fei Wang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China.
| | - Yuan Yang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China.
| | - Guobo Deng
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China. .,Ministry of Education Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Yilin Liu
- Institute of Organic Synthesis, College of Chemistry and Materials Engineering, Huaihua University, Huaihua 418008, China.
| | - Yun Liang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China.
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12
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Malarney KP, Kc S, Schmidt VA. Recent strategies used in the synthesis of saturated four-membered heterocycles. Org Biomol Chem 2021; 19:8425-8441. [PMID: 34546272 DOI: 10.1039/d1ob00988e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The importance and prevalance of O-, N-, and S-atom containing saturated four-membered ring motifs in biologically active molecules and potential therapeutics continues to drive efforts in their efficient synthetic preparation. In this review, general and recent strategies for the synthesis of these heterocycles are presented. Due to the limited potential bond disconnections, retrosynthetic strategies are broadly limited to cyclizations and cycloadditions. Nonetheless, diverse approaches for accessing cyclization precursors have been developed, ranging from nucleophilic substitution to C-H functionalization. Innovative methods for substrate activation have been developed for cycloadditions under photochemical and thermal conditions. Advances in accessing oxetanes, azetidines, and thietanes remain active areas of research with continued breakthroughs anticipated to enable future applications.
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Affiliation(s)
- Kien P Malarney
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, 92071, USA.
| | - Shekhar Kc
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, 92071, USA.
| | - Valerie A Schmidt
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, 92071, USA.
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13
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Hu Y, Huang Y, Zhao X, Gao Y, Li X, Chen Q. A three-component reaction of arynes, sodium sulfinates, and aldehydes toward 2-sulfonyl benzyl alcohol derivatives. Org Biomol Chem 2021; 19:7066-7073. [PMID: 34341811 DOI: 10.1039/d1ob01229k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel three-component reaction of arynes, sodium sulfinates, and aldehydes under mild reaction conditions is described. This transformation provides a direct synthetic approach to 2-sulfonyl benzyl alcohol derivatives, which could be rapidly converted to diverse arylsulfur compounds via the transformation of the corresponding hydroxyl groups. Various aryne precursors, sodium arenesulfinates, and aromatic aldehydes can be effectively converted to the desired products in 40-84% yields (29 examples).
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Affiliation(s)
- Yifan Hu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
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14
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Huang Y, Hu Y, Han Y, Ou Y, Huo Y, Li X, Chen Q. Direct Synthesis of ortho-Halogenated Arylphosphonates via a Three-Component Reaction Involving Arynes. J Org Chem 2021; 86:7010-7018. [PMID: 33881847 DOI: 10.1021/acs.joc.1c00550] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A three-component reaction involving arynes, trialkyl phosphites, and halides has been achieved under mild reaction conditions. This transformation provides a direct synthetic approach to ortho-halogenated arylphosphonates, which could be rapidly converted to diversely ortho-functionalized arylphosphorus compounds.
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Affiliation(s)
- Yuanting Huang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Yifan Hu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Yukun Han
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Yingcong Ou
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Xianwei Li
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Qian Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
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15
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Liu X, Liu B, Shi Z, Tan C, Fan R, Li Z, Tan J. Hf(OTf) 4-Catalyzed 1,6-Conjugate Addition of 2-Alkyl-azaarenes to para-Quinone Methides. J Org Chem 2021; 86:3615-3624. [PMID: 33523665 DOI: 10.1021/acs.joc.0c02982] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Herein we reported a Hf(OTf)4-catalyzed carbon-carbon bond formation reaction between 2-alkyl-azaarenes and para-quinone methides (p-QMs). This 1,6-conjugate addition protocol offered rapid access to a large array of triarylethane products in good yields. The catalyst loading could be reduced to 1 mol %. Studies pertinent to scale-up reaction and product derivatization were also presented.
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Affiliation(s)
- Xinyuan Liu
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Binbin Liu
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Zhan Shi
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, P. R. China
| | - Chen Tan
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Rong Fan
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Zhi Li
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, P. R. China
| | - Jiajing Tan
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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16
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Affiliation(s)
- Jiarong Shi
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
| | - Lianggui Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
| | - Yang Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
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17
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Okuma K, Qu Y, Nagahora N. Novel Reaction Course of Thiiranes to Vinyloxiranes: Reaction of Benzyne with Thiiranes and Aldehydes. HETEROCYCLES 2021. [DOI: 10.3987/com-21-14465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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18
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Fan R, Tan C, Liu Y, Wei Y, Zhao X, Liu X, Tan J, Yoshida H. A leap forward in sulfonium salt and sulfur ylide chemistry. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.06.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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19
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Chen X, Yang N, Zeng W, Wang L, Li P, Li H. Metal-free dearomative [5+2]/[2+2] cycloaddition of 1 H-indoles with ortho-(trimethylsilyl)aryl triflates. Chem Commun (Camb) 2021; 57:7047-7050. [PMID: 34179907 DOI: 10.1039/d1cc02550c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Herein, we report a mild dearomative [5+2]/[2+2] cycloaddition of 1H-indoles with ortho-(trimethylsilyl)aryl triflates. The unique [5+2] cycloaddition enables the synthesis of a series of dibenzo[b,e]azepine derivatives in moderate to good yields. Increasing the steric hindrance at the C2-position of 1H-indoles leads to the [2+2] cycloaddition. Mechanistic investigations support that the reaction of 1H-indoles with arynes undergoes a [2+2] cycloaddition step, followed by a ring expansion to the [5+2] cycloaddition product.
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Affiliation(s)
- Xinyu Chen
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
| | - Na Yang
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
| | - Wen Zeng
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
| | - Lei Wang
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China. and Advanced Research Institute and Department of Chemistry, Taizhou University, Taizhou, Zhejiang 318000, P. R. China and State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Science, Shanghai 200032, P. R. China
| | - Pinhua Li
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
| | - Hongji Li
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China. and State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Science, Shanghai 200032, P. R. China
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20
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Azulenesulfonium and azulenebis(sulfonium) salts: Formation by interrupted Pummerer reaction and subsequent derivatisation by nucleophiles. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131700] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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21
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Kassir AF, Guillot R, Scherrmann MC, Boddaert T, Aitken DJ. Formation of Tetrahydrothiophenes via a Thia-Paternò-Büchi-Initiated Domino Photochemical Reaction. Org Lett 2020; 22:8522-8527. [PMID: 33108208 DOI: 10.1021/acs.orglett.0c03128] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We have established photochemical access to thietane or tetrahydrothiophene compounds from thiobenzophenone derivatives and acrylonitrile, wherein the product selectivity is controlled by a simple adjustment of the reagent concentration in solution. Small libraries of five-membered ring sulfur-containing compounds were prepared through a thia-Paternò-Büchi reaction, followed by a previously unknown regioselective photochemical ring enlargement reaction in a domino process or a stepwise fashion. A mechanism is proposed to rationalize this ring enlargement reaction via a carbene species provided from photoexcited thiocarbonyl compounds.
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Affiliation(s)
- Ahmad F Kassir
- CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Université Paris-Saclay, 91405 Orsay, France
| | - Régis Guillot
- CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Université Paris-Saclay, 91405 Orsay, France
| | - Marie-Christine Scherrmann
- CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Université Paris-Saclay, 91405 Orsay, France
| | - Thomas Boddaert
- CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Université Paris-Saclay, 91405 Orsay, France
| | - David J Aitken
- CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Université Paris-Saclay, 91405 Orsay, France
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22
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Matsuzawa T, Hosoya T, Yoshida S. One-step synthesis of benzo[ b]thiophenes by aryne reaction with alkynyl sulfides. Chem Sci 2020; 11:9691-9696. [PMID: 34094234 PMCID: PMC8162113 DOI: 10.1039/d0sc04450d] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 08/26/2020] [Indexed: 12/15/2022] Open
Abstract
An aryne reaction with alkynyl sulfides affording benzo[b]thiophenes is disclosed. A wide range of 3-substituted benzothiophenes were synthesized from easily available o-silylaryl triflates and alkynyl sulfides in a one-step intermolecular manner. The synthesis of diverse multisubstituted benzothiophene derivatives involving a pentacyclic compound was achieved by virtue of the good functional group tolerance and versatile C2 functionalizations.
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Affiliation(s)
- Tsubasa Matsuzawa
- 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
| | - Takamitsu Hosoya
- 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
| | - 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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23
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24
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Saputra A, Fan R, Yao T, Chen J, Tan J. Synthesis of 2‐(Arylthio)indolenines via Chemoselective Arylation of Thio‐Oxindoles with Arynes. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000308] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Adi Saputra
- Department of Organic Chemistry, College of Chemistry, BeijingUniversity of Chemical Technology Beijing 100029 People's Republic of China
| | - Rong Fan
- Department of Organic Chemistry, College of Chemistry, BeijingUniversity of Chemical Technology Beijing 100029 People's Republic of China
| | - Tuanli Yao
- College of Chemistry and Chemical EngineeringShaanxi University of Science and Technology 6 Xuefu Road, Weiyang District Xi'an, Shaanxi 710021 People's Republic of China
| | - Jian Chen
- Department of Organic Chemistry, College of Chemistry, BeijingUniversity of Chemical Technology Beijing 100029 People's Republic of China
| | - Jiajing Tan
- Department of Organic Chemistry, College of Chemistry, BeijingUniversity of Chemical Technology Beijing 100029 People's Republic of China
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25
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Okuma K, Qu Y, Fujiie N, Nagahora N. Old and New Aryne Precursor, Anthranilic Acid: Multicomponent Reaction of Benzyne with Quinolines or Imines and Pronucleophiles. CHEM LETT 2020. [DOI: 10.1246/cl.190944] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Kentaro Okuma
- Department of Chemistry, Fukuoka University, Jonan-ku, Fukuoka 814-0180, Japan
| | - Yuxuan Qu
- Department of Chemistry, Fukuoka University, Jonan-ku, Fukuoka 814-0180, Japan
| | - Nonoka Fujiie
- Department of Chemistry, Fukuoka University, Jonan-ku, Fukuoka 814-0180, Japan
| | - Noriyoshi Nagahora
- Department of Chemistry, Fukuoka University, Jonan-ku, Fukuoka 814-0180, Japan
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26
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Liu L, Jiang P, Liu Y, Du H, Tan J. Direct radical alkylation and acylation of 2H-indazoles using substituted Hantzsch esters as radical reservoirs. Org Chem Front 2020. [DOI: 10.1039/d0qo00507j] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A platform approach for the direct synthesis of 3-substituted 2H-indazole derivatives has been developed using a Ag(i)/Na2S2O8 system.
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Affiliation(s)
- Li Liu
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology (BUCT)
- Beijing 100029
- China
| | - Pengxing Jiang
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology (BUCT)
- Beijing 100029
- China
| | - Yongguo Liu
- Beijing Key Laboratory of Flavour Chemistry
- Beijing Technology and Business University (BTBU)
- Beijing 100048
- China
| | - Hongguang Du
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology (BUCT)
- Beijing 100029
- China
| | - Jiajing Tan
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology (BUCT)
- Beijing 100029
- China
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27
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Borrel J, Pisella G, Waser J. Copper-Catalyzed Oxyalkynylation of C–S Bonds in Thiiranes and Thiethanes with Hypervalent Iodine Reagents. Org Lett 2019; 22:422-427. [DOI: 10.1021/acs.orglett.9b04157] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Julien Borrel
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 1402, 1015 Lausanne, Switzerland
| | - Guillaume Pisella
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 1402, 1015 Lausanne, Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 1402, 1015 Lausanne, Switzerland
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28
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Ding W, Yu A, Zhang L, Meng X. Construction of Eight-Membered Cyclic Diaryl Sulfides via Domino Reaction of Arynes with Thioaurone Analogues and DFT Study on the Reaction Mechanism. Org Lett 2019; 21:9014-9018. [DOI: 10.1021/acs.orglett.9b03417] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Wenhuan Ding
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Aimin Yu
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Lei Zhang
- Tianjin Engineering Technology Center of Chemical Wastewater Source Reduction and Recycling, School of Science, Tianjin Chengjian University, Tianjin 300384, P. R. China
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Xiangtai Meng
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
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29
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Singh P, Cairns AG, Adolfsson DE, Ådén J, Sauer UH, Almqvist F. Synthesis of Densely Functionalized N-Alkenyl 2-Pyridones via Benzyne-Induced Ring Opening of Thiazolino-Fused 2-Pyridones. Org Lett 2019; 21:6946-6950. [PMID: 31419146 DOI: 10.1021/acs.orglett.9b02549] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the synthesis of 6-arylthio-substituted-N-alkenyl 2-pyridones by ring opening of bicyclic thiazolino-2-pyridones with arynes. Varied functionalization was used to investigate scope and substituent influences on reactivity. Selected conditions favor thioether ring opening over [4 + 2] cycloaddition and an unusual aryne incorporating ring expansion. Deuterium labeling was used to clarify observed reactivity. Using the knowledge, we produced drug-like molecules with complex substitution patterns and show how thioether ring opening can be used on scaffolds with competing reactivities.
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Affiliation(s)
- Pardeep Singh
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
| | - Andrew G Cairns
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
| | - Dan E Adolfsson
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
| | - Jörgen Ådén
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
| | - Uwe H Sauer
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
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30
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Wang W, Wan H, Du G, Dai B, He L. Synthesis of Benzo[b]fluoranthenes and Spiroacridines from Fluorene-Derived Alkenes and N-Arylimines via a Tandem Reaction with Benzynes. Org Lett 2019; 21:3496-3500. [DOI: 10.1021/acs.orglett.9b00659] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Weihua Wang
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, Xinjiang Uygur Autonomous Region 832000, China
| | - Hongwei Wan
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, Xinjiang Uygur Autonomous Region 832000, China
| | - Guangfen Du
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, Xinjiang Uygur Autonomous Region 832000, China
| | - Bin Dai
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, Xinjiang Uygur Autonomous Region 832000, China
| | - Lin He
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, Xinjiang Uygur Autonomous Region 832000, China
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31
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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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32
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Liu L, Tan C, Fan R, Wang Z, Du H, Xu K, Tan J. I2/TBHP-Mediated tandem cyclization and oxidation reaction: Facile access to 2-substituted thiazoles and benzothiazoles. Org Biomol Chem 2019; 17:252-256. [DOI: 10.1039/c8ob02826e] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The efficient synthesis of 2-substituted thiazoles and benzothiazoles has been accomplished employing readily available cysteine esters and 2-aminobenzenethiols as N and S sources.
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Affiliation(s)
- Li Liu
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Chen Tan
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Rong Fan
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Zihan Wang
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Hongguang Du
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Kun Xu
- College of Chemistry and Pharmaceutical Engineering
- Nanyang Normal University
- Nanyang
- P. R. China
| | - Jiajing Tan
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
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33
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Wang Z, Zhang J, Shi J, Wang H. KOtBu-promoted oxidative dimerizations of 2-methylquinolines to 2-alkenyl bisquinolines with molecular oxygen. RSC Adv 2019; 9:30139-30143. [PMID: 35530195 PMCID: PMC9072141 DOI: 10.1039/c9ra06465f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Accepted: 09/18/2019] [Indexed: 01/12/2023] Open
Abstract
KOtBu-promoted oxidative dimerizations of 2-methylquinolines with molecular oxygen as the oxidant have been developed for the first time.
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Affiliation(s)
- Zhen Wang
- Department of Pharmacy
- Nanyang Medical College
- Nanyang
- China
| | - Jinjin Zhang
- College of Chemistry and Pharmaceutical Engineering
- Nanyang Normal University
- Nanyang
- China
| | - Jianxue Shi
- College of Chemistry and Pharmaceutical Engineering
- Nanyang Normal University
- Nanyang
- China
| | - Huiqiao Wang
- College of Chemistry and Pharmaceutical Engineering
- Nanyang Normal University
- Nanyang
- China
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34
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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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35
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36
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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: 26] [Impact Index Per Article: 4.3] [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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37
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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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38
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Tan J, Liu B, Su S. Aryne triggered dearomatization reaction of isoquinolines and quinolines with chloroform. Org Chem Front 2018. [DOI: 10.1039/c8qo00838h] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The direct dearomatization reaction of isoquinolines and quinolines with chloroform has been accomplished through in situ electrophilic aryne activation and nucleophile formation.
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Affiliation(s)
- Jiajing Tan
- Department of Organic Chemistry
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Binbin Liu
- Department of Organic Chemistry
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Shuaisong Su
- 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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