51
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Minami Y, Noguchi Y, Hiyama T. Synthesis of Benzosiloles by Intramolecular anti-Hydroarylation via ortho-C-H Activation of Aryloxyethynyl Silanes. J Am Chem Soc 2017; 139:14013-14016. [PMID: 28933842 DOI: 10.1021/jacs.7b08055] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Straightforward synthesis of benzosiloles was achieved by the invention of Pd/acid-catalyzed intramolecular anti-hydroarylation of aryloxyethynyl(aryl)silanes via ortho-C-H bond activation. The aryloxy group bound to the ethynyl carbon is the key factor for this transformation.
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Affiliation(s)
- Yasunori Minami
- Research and Development Initiative, Chuo University , 1-13-27, Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Yuta Noguchi
- Department of Applied Chemistry, Chuo University , 1-13-27, Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Tamejiro Hiyama
- Research and Development Initiative, Chuo University , 1-13-27, Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
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52
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Nallagangula M, Namitharan K. Copper-Catalyzed Sulfonyl Azide-Alkyne Cycloaddition Reactions: Simultaneous Generation and Trapping of Copper-Triazoles and -Ketenimines for the Synthesis of Triazolopyrimidines. Org Lett 2017; 19:3536-3539. [PMID: 28609631 DOI: 10.1021/acs.orglett.7b01500] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
First simultaneous generation and utilization of both copper-triazole and -ketenimine intermediates in copper-catalyzed sulfonyl azide-alkyne cycloaddition reactions is achieved for the one-pot synthesis of triazolopyrimidines via a novel copper-catalyzed multicomponent cascade of sulfonyl azides, alkynes, and azirines. Significantly, the reaction proceeds under very mild conditions in good yields.
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Affiliation(s)
- Madhu Nallagangula
- Organic Synthesis and Catalysis Laboratory, SRM Research Institute, SRM University , Chennai-603203, India
| | - Kayambu Namitharan
- Organic Synthesis and Catalysis Laboratory, SRM Research Institute, SRM University , Chennai-603203, India
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53
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Guarnieri-Ibáñez A, Medina F, Besnard C, Kidd SL, Spring DR, Lacour J. Diversity-oriented synthesis of heterocycles and macrocycles by controlled reactions of oxetanes with α-iminocarbenes. Chem Sci 2017; 8:5713-5720. [PMID: 28989611 PMCID: PMC5621157 DOI: 10.1039/c7sc00964j] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 06/05/2017] [Indexed: 12/30/2022] Open
Abstract
Using N-sulfonyl triazoles as substrates, compounds as diverse as 2-imino tetrahydrofurans, 13- and 15-membered ring aza-macrocycles can be prepared selectively via formal [1 + 4], [5 + 4 + 4] and [3 + 4 + 4 + 4] condensations of α-imino carbenes and oxetanes under Rh(ii)-catalysis or thermal activation. Spirocyclic N-heterocycles are also accessible by means of Buchwald-Hartwig and Pictet-Spengler cyclizations. By reaction control, substrate selection or further derivatization, a large variety of chemical structures is thus achievable. Finally, using triazoles reacting under thermal activation, interesting mechanistic insight was obtained.
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Affiliation(s)
- Alejandro Guarnieri-Ibáñez
- Department of Organic Chemistry , University of Geneva , quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland
| | - Florian Medina
- Department of Organic Chemistry , University of Geneva , quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland
| | - Céline Besnard
- Laboratory of Crystallography , University of Geneva , quai Ernest Ansermet 24 , CH-1211 Geneva 4 , Switzerland
| | - Sarah L Kidd
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge , CB2 1EW , UK
| | - David R Spring
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge , CB2 1EW , UK
| | - Jérôme Lacour
- Department of Organic Chemistry , University of Geneva , quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland
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54
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Li Y, Zhang R, Ali A, Zhang J, Bi X, Fu J. Synthesis of 6-Substituted Piperidin-3-ones via Rh(II)-Catalyzed Transannulation of N-Sulfonyl-1,2,3-triazoles with Electron-Rich Aromatic Nucleophiles. Org Lett 2017; 19:3087-3090. [PMID: 28541705 DOI: 10.1021/acs.orglett.7b01180] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A highly diastereoselective rhodium(II)-catalyzed transannulation of aldehyde-tethered N-sulfonyl triazoles with electron-rich aromatic nucleophiles is reported for the first time to afford functionalized 6-substituted piperidin-3-ones. The reaction has a broad substrate scope including both aliphatic and aromatic N-sulfonyl-1,2,3-triazoles together with various aromatic nucleophiles. The addition of a catalytic amount of Lewis acid has proven to be crucial for the yield improvement. By employing this methodology, hardly accessible piperidin-3-ones bearing quaternary carbons could be obtained.
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Affiliation(s)
- Yang Li
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University , Changchun 130024, China
| | - Ran Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University , Changchun 130024, China
| | - Arshad Ali
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University , Changchun 130024, China
| | - Jing Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University , Changchun 130024, China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University , Changchun 130024, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University , Tianjin 300071, China
| | - Junkai Fu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University , Changchun 130024, China
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55
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Shojaei S, Ghasemi Z, Shahrisa A. Cu(I)@Fe
3
O
4
nanoparticles supported on imidazolium‐based ionic liquid‐grafted cellulose: Green and efficient nanocatalyst for multicomponent synthesis of
N
‐sulfonylamidines and
N
‐sulfonylacrylamidines. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3788] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Salman Shojaei
- Department of Organic and Biochemistry, Faculty of ChemistryUniversity of Tabriz Tabriz 5166614766 Iran
| | - Zarrin Ghasemi
- Department of Organic and Biochemistry, Faculty of ChemistryUniversity of Tabriz Tabriz 5166614766 Iran
| | - Aziz Shahrisa
- Department of Organic and Biochemistry, Faculty of ChemistryUniversity of Tabriz Tabriz 5166614766 Iran
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56
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Fu L, Davies HML. Scope of the Reactions of Indolyl- and Pyrrolyl-Tethered N-Sulfonyl-1,2,3-triazoles: Rhodium(II)-Catalyzed Synthesis of Indole- and Pyrrole-Fused Polycyclic Compounds. Org Lett 2017; 19:1504-1507. [PMID: 28358204 DOI: 10.1021/acs.orglett.7b00180] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An efficient synthesis of tetrahydrocarboline-type products and polycyclic spiroindolines has been achieved. The transformation proceeds via rhodium(II)-catalyzed intramolecular annulations of indolyl- and pyrrolyl-tethered N-sulfonyl-1,2,3-triazoles. The reaction could be tuned toward either the formal [3 + 2] cycloaddition or the C-H functionalization reaction depending on the electronic and structural features of the substrates, leading to the production of a variety of structurally related heterocyclic compounds.
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Affiliation(s)
- Liangbing Fu
- Department of Chemistry, Emory University , 1515 Dickey Drive, Atlanta, Georgia 30322, United States
| | - Huw M L Davies
- Department of Chemistry, Emory University , 1515 Dickey Drive, Atlanta, Georgia 30322, United States
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57
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Mi P, Yuan H, Wang H, Liao P, Zhang J, Bi X. Divergent Reactions between α-Imino Rhodium Carbenoids and 1,3-Diketones: Substrate-Controlled O-H versus C-H Insertion. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Pengbing Mi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; 130024 Changchun China
| | - Haiyan Yuan
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; 130024 Changchun China
| | - Hannan Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; 130024 Changchun China
| | - Peiqiu Liao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; 130024 Changchun China
| | - Jingping Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; 130024 Changchun China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; 130024 Changchun China
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University; 300071 Tianjin China
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58
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Bennett JM, Shapiro JD, Choinski KN, Mei Y, Aulita SM, Reinheimer EW, Majireck MM. Synthesis of phthalan and phenethylamine derivatives via addition of alcohols to rhodium(II)-azavinyl carbenoids. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.01.105] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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59
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Miura T, Tanaka T, Zhao Q, Stewart SG, Murakami M. Synthesis of 2-Substituted 2-Amino Ketones by Rhodium-Catalyzed Reaction ofN-Sulfonyl-1,2,3-triazoles with 2-Alkenols. Helv Chim Acta 2017. [DOI: 10.1002/hlca.201600320] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Tomoya Miura
- Department of Synthetic Chemistry and Biological Chemistry; Kyoto University; Katsura Kyoto 615-8510 Japan
| | - Takamasa Tanaka
- Department of Synthetic Chemistry and Biological Chemistry; Kyoto University; Katsura Kyoto 615-8510 Japan
| | - Qiang Zhao
- Department of Synthetic Chemistry and Biological Chemistry; Kyoto University; Katsura Kyoto 615-8510 Japan
| | - Scott G. Stewart
- Department of Synthetic Chemistry and Biological Chemistry; Kyoto University; Katsura Kyoto 615-8510 Japan
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry; Kyoto University; Katsura Kyoto 615-8510 Japan
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60
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Ali W, Dahiya A, Pandey R, Alam T, Patel BK. Microwave-Assisted Cascade Strategy for the Synthesis of Indolo[2,3-b]quinolines from 2-(Phenylethynyl)anilines and Aryl Isothiocynates. J Org Chem 2017; 82:2089-2096. [DOI: 10.1021/acs.joc.6b02912] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Wajid Ali
- Department
of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Anjali Dahiya
- Department
of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Ramdhari Pandey
- Department
of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Tipu Alam
- Department
of Chemistry, Aligarh Muslim University, Aligarh 202002, India
| | - Bhisma K. Patel
- Department
of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
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61
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Jiang B, Shi M. Rhodium(ii)-catalyzed intermolecular [3 + 2] annulation of N-vinyl indoles with N-tosyl-1,2,3-triazoles via an aza-vinyl Rh carbene. Org Chem Front 2017. [DOI: 10.1039/c7qo00703e] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This study opens up a new synthetic approach for the construction of various functionalized indoles having a dihydropyrrole moiety from the Rh(ii)-catalyzed annulation of N-vinyl indoles with 4-aryl-N-tosyl-1,2,3-triazoles under mild conditions.
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Affiliation(s)
- Bo Jiang
- State Key Laboratory of Organometallic Chemistry
- University of Chinese Academy of Science
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry
- University of Chinese Academy of Science
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
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62
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Pal K, Volla CMR. Rhodium-catalyzed denitrogenative transannulation of 1,2,3-triazolyl-carbamates: efficient access to 4-aminooxazolidinones. Org Chem Front 2017. [DOI: 10.1039/c7qo00101k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The rhodium(ii)-catalyzed denitrogenative transannulation reaction of 1,2,3-triazolyl-carbamates was described providing an efficient access to biologically interesting 4-aminooxazolidinones in excellent yields and selectivities.
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Affiliation(s)
- Kuntal Pal
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai-400076
- India
| | - Chandra M. R. Volla
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai-400076
- India
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63
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Tjutrins J, Dhawan R, Lu Y, Arndtsen BA. Mechanism of the Palladium-Catalyzed Synthesis of Münchnones: The Role of Ligands in N-Acyl Iminium Salt Carbonylation. Chemistry 2016; 22:15945-15954. [PMID: 27643406 DOI: 10.1002/chem.201603400] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Indexed: 11/06/2022]
Abstract
The palladium-catalyzed carbonylative coupling of imines, acid chlorides, and dipolarophiles can provide efficient routes to prepare nitrogen-containing heterocycles. One challenge in developing this reaction, and in the creation of more active catalyst systems, is the lack of data on how this complex transformation proceeds. To address this, we report here the results of our mechanistic studies on this system, and in particular the formation of mesoionic münchnones. This includes the synthesis of key catalytic intermediates, model reactions, and kinetic studies that support the role of these compounds in catalysis. Together, these studies provide a clear picture of the impact of catalyst structure, ligands, and palladium nanoparticles on facilitating the carbonylation of in situ generated iminium salts, and suggest an avenue for the creation of more active catalyst systems.
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Affiliation(s)
- Jevgenijs Tjutrins
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC, H3A 0B8, Canada
| | - Rajiv Dhawan
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC, H3A 0B8, Canada
| | - Yingdong Lu
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC, H3A 0B8, Canada
| | - Bruce A Arndtsen
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC, H3A 0B8, Canada.
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64
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Minami Y, Noguchi Y, Yamada K, Hiyama T. Intramolecular Hydroalkylation via Activation oftert-Butyl C–H Bond in Silylethynyl Aryl Ethers. CHEM LETT 2016. [DOI: 10.1246/cl.160618] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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65
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Wang Y, Ma L, Ma M, Zheng H, Shao Y, Wan X. Bu4NI-Catalyzed Cross-Coupling between Sulfonyl Hydrazides and Diazo Compounds To Construct β-Carbonyl Sulfones Using Molecular Oxygen. Org Lett 2016; 18:5082-5085. [DOI: 10.1021/acs.orglett.6b02532] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yaxiong Wang
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Liang Ma
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Meihua Ma
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Hao Zheng
- Jiangsu
Key Laboratory of Advanced Catalytic Materials and Technology, Advanced
Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China
| | - Ying Shao
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
- Jiangsu
Key Laboratory of Advanced Catalytic Materials and Technology, Advanced
Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China
| | - Xiaobing Wan
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
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66
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Minami Y, Sakai M, Anami T, Hiyama T. Annulation of Alkynyl Aryl Ethers with Allyl Pivalates To Give 2,3‐Bismethylenechromanes through Double C−H Bond Cleavage. Angew Chem Int Ed Engl 2016; 55:8701-5. [DOI: 10.1002/anie.201602252] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 04/26/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Yasunori Minami
- Research and Development Initiative Chuo University Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
| | - Megumi Sakai
- Department of Applied Chemistry Chuo University Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
| | - Tomohiro Anami
- Department of Applied Chemistry Chuo University Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
| | - Tamejiro Hiyama
- Research and Development Initiative Chuo University Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
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67
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Minami Y, Sakai M, Anami T, Hiyama T. Annulation of Alkynyl Aryl Ethers with Allyl Pivalates To Give 2,3‐Bismethylenechromanes through Double C−H Bond Cleavage. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201602252] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yasunori Minami
- Research and Development Initiative Chuo University Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
| | - Megumi Sakai
- Department of Applied Chemistry Chuo University Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
| | - Tomohiro Anami
- Department of Applied Chemistry Chuo University Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
| | - Tamejiro Hiyama
- Research and Development Initiative Chuo University Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
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68
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Silver-Catalyzed Intramolecular C-2 Selective Acylation of Indoles with Aldehydes: An Atom-Economical Entry to Indole-Indolone Scaffolds. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600108] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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69
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Xie H, Yang JX, Bora PP, Kang Q. Rh(II)-catalyzed intramolecular annulation of N-sulfonyl 1,2,3-triazoles with indole derivatives: a new method for synthesis pyranoindoles. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.04.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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70
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2014. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.09.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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71
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Kim Y, Park J, Chang S. A Direct Access to 7-Aminoindoles via Iridium-Catalyzed Mild C–H Amidation of N-Pivaloylindoles with Organic Azides. Org Lett 2016; 18:1892-5. [DOI: 10.1021/acs.orglett.6b00662] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Youyoung Kim
- Department
of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Korea
- Center
for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 305-701, Korea
| | - Juhyeon Park
- Department
of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Korea
- Center
for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 305-701, Korea
| | - Sukbok Chang
- Department
of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Korea
- Center
for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 305-701, Korea
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72
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Bora PP, Luo ZL, Chen L, Kang Q. Rh(II)-catalyzed intramolecular dearomatizing annulation of N-sulfonyl-1,2,3-triazoles: synthesis of polycyclic spiroindolines. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.01.049] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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73
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Chou CH, Chen YY, Rajagopal B, Tu HC, Chen KL, Wang SF, Liang CF, Tyan YC, Lin PC. Thermally Induced Denitrogenative Annulation for the Synthesis of Dihydroquinolinimines and Chroman-4-imines. Chem Asian J 2016; 11:757-65. [DOI: 10.1002/asia.201501239] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Indexed: 12/14/2022]
Affiliation(s)
- Chih-Hung Chou
- Department of Chemistry; Nation Sun Yat-sen University; 70 Lienhai Rd. Kaohsiung 80424 Taiwan
| | - Ying-Yu Chen
- Department of Chemistry; Nation Sun Yat-sen University; 70 Lienhai Rd. Kaohsiung 80424 Taiwan
| | - Basker Rajagopal
- Department of Chemistry; Nation Sun Yat-sen University; 70 Lienhai Rd. Kaohsiung 80424 Taiwan
| | - Hsiu-Chung Tu
- Department of Chemistry; Nation Sun Yat-sen University; 70 Lienhai Rd. Kaohsiung 80424 Taiwan
| | - Kuan-Lin Chen
- Department of Chemistry; Nation Sun Yat-sen University; 70 Lienhai Rd. Kaohsiung 80424 Taiwan
| | - Sheng-Fu Wang
- Department of Chemistry; Nation Sun Yat-sen University; 70 Lienhai Rd. Kaohsiung 80424 Taiwan
| | - Chien-Fu Liang
- Department of Chemistry; Nation Sun Yat-sen University; 70 Lienhai Rd. Kaohsiung 80424 Taiwan
| | - Yu-Chang Tyan
- Department of Medical Imaging and Radiological Sciences; Kaohsiung Medical University; 100, Shih-Chuan 1st Rd. Kaohsiung 80708 Taiwan
| | - Po-Chiao Lin
- Department of Chemistry; Nation Sun Yat-sen University; 70 Lienhai Rd. Kaohsiung 80424 Taiwan
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74
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75
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Minami Y, Hiyama T. Synthetic Transformations through Alkynoxy-Palladium Interactions and C-H Activation. Acc Chem Res 2016; 49:67-77. [PMID: 26651014 DOI: 10.1021/acs.accounts.5b00414] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Organic synthesis based on straightforward transformations is essential for environmentally benign manufacturing for the invention of novel pharmaceuticals, agrochemicals, and organoelectronic materials in order to ultimately realize a sustainable society. Metal-catalyzed C-H bond-cleaving functionalization has become a promising method for achieving the above goal. For site-selective C-H bond cleavage, so-called directing groups, i.e., ligands attached to substrates, are employed. Commonly utilized directing groups are carbonyls, imines, carboxyls, amides, and pyridyls, which σ-donate electron pairs to metals. On the other hand, unsaturated substrates such as alkenes and alkynes, which participate largely as reactants in organic synthesis, are prepared readily by a wide variety of synthetic transformations and are also employed as reactants in organometallic chemistry. Moreover, such unsaturated groups form complexes with some metals by ligation of their p orbitals via donation and back-donation. However, the use of unsaturated bonds as directing groups has not been studied extensively. We have been involved in the development of methods for the cleavage of C-H bonds by means of transition-metal catalysts to achieve new carbon-carbon bond-forming reactions and incidentally came to focus on the alkynoxy group (-OC≡C-), which shows a ketene-like resonance structure. We expected the alkynoxy group to interact electrophilically with a low-valent transition-metal complex in order to cleave adjacent C-H bonds. In this Account, we summarize our recent achievements on C-H activation based on interactions of palladium with the alkynoxy group in alkynyl aryl ethers. The alkynoxy group plays two roles in the transformation: as a directing group for adjacent C-H bond activation and as an acceptor for the carbon and hydrogen fragments. A typical example is palladium-catalyzed ortho-C-H bond activation in alkynoxyarenes followed by sequential insertion/annulation with internal alkynes and the alkynoxy group to produce 2-methylidene-2H-1-benzopyrans. Mechanistic studies have shown that the presence of both oxygen and alkynyl moieties is essential for selective ortho-C-H bond activation and subsequent annulation. In addition to internal alkynes, norbornene, allenes, isocyanates, and ketenes produce the corresponding oxacycles. It is worthy of note that benzoxadinones formed by the reaction with isocyanates exhibit solid-state luminescence. In addition, 2-methylphenyl alkynyl ethers and 2-alkynoxybiaryls undergo intramolecular annulation at the benzylic γ-position and aryl δ-position via C-H bond activation to give benzofurans and dibenzopyrans, respectively. The disclosed methods allow us to construct useful π-conjugated systems in a straightforward manner.
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Affiliation(s)
- Yasunori Minami
- Research and Development
Initiative, Chuo University, Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Tamejiro Hiyama
- Research and Development
Initiative, Chuo University, Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
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76
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Abstract
Alkynyl ethers and thioethers are versatile building blocks in organic synthesis allowing various transformations including a number of C–C bond forming processes.
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77
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Hu Y, Zhou B, Wang C. Copper-catalyzed three-component cascade reaction of alkynes, sulfonyl azides and simple aldehydes/ketones. Org Biomol Chem 2016; 14:3022-6. [DOI: 10.1039/c6ob00146g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A copper-catalyzed dimethylzinc-promoted three-component cascade reaction of alkynes, sulfonyl azides, and simple aldehydes or ketones is described, which delivers polysubstituted olefins expeditiously in one pot under mild conditions.
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Affiliation(s)
- Yuanyuan Hu
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Bingwei Zhou
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Congyang Wang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
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78
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Song Z, Antonchick AP. Iridium(iii)-catalyzed regioselective C7-sulfonamidation of indoles. Org Biomol Chem 2016; 14:4804-8. [DOI: 10.1039/c6ob00926c] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Iridium(iii)-catalyzed direct C7-sulfonamidation of indoles with sulfonyl azides is described.
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Affiliation(s)
- Zengqiang Song
- Abteilung Chemische Biologie
- Max-Planck-Institut für Molekulare Physiologie
- 44227 Dortmund
- Germany
- Chemische Biologie; Fakultät Chemie und Chemische Biologie
| | - Andrey P. Antonchick
- Abteilung Chemische Biologie
- Max-Planck-Institut für Molekulare Physiologie
- 44227 Dortmund
- Germany
- Chemische Biologie; Fakultät Chemie und Chemische Biologie
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79
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Jiang Y, Wang Q, Sun R, Tang XY, Shi M. Base-induced synthesis of N-dialkylaminomethyl-2H-1,2,3-triazoles from N-sulfonyl-1,2,3-triazoles. Org Chem Front 2016. [DOI: 10.1039/c6qo00102e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A facile synthetic method to access N-dialkylaminomethyl-2H-1,2,3-triazoles has been developed from N-sulfonyl-1,2,3-triazoles by a base induced reaction. Moreover, 4-phenyl-1H-1,2,3-triazoles can also give the same product even in the absence of a base at high temperature.
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Affiliation(s)
- Yu Jiang
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Qiang Wang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai
- China
| | - Run Sun
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai
- China
| | - Xiang-Ying Tang
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
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80
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Senoo M, Furukawa A, Hata T, Urabe H. Rhodium-Catalyzed Intramolecular C−H Bond Activation with Triazoles: Preparation of Stereodefined Pyrrolidines and Other Related Cyclic Compounds. Chemistry 2015; 22:890-5. [DOI: 10.1002/chem.201503823] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Indexed: 01/25/2023]
Affiliation(s)
- Masato Senoo
- Department of Biomolecular Engineering; Graduate School of Bioscience and Biotechnology; Tokyo Institute of Technology; 4259-B-59 Nagatsuta-cho, Midori-ku Yokohama Kanagawa 226-8501 Japan
| | - Ayana Furukawa
- Department of Biomolecular Engineering; Graduate School of Bioscience and Biotechnology; Tokyo Institute of Technology; 4259-B-59 Nagatsuta-cho, Midori-ku Yokohama Kanagawa 226-8501 Japan
| | - Takeshi Hata
- Department of Biomolecular Engineering; Graduate School of Bioscience and Biotechnology; Tokyo Institute of Technology; 4259-B-59 Nagatsuta-cho, Midori-ku Yokohama Kanagawa 226-8501 Japan
- PRESTO, JST; Japan
| | - Hirokazu Urabe
- Department of Biomolecular Engineering; Graduate School of Bioscience and Biotechnology; Tokyo Institute of Technology; 4259-B-59 Nagatsuta-cho, Midori-ku Yokohama Kanagawa 226-8501 Japan
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81
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Kanchupalli V, Joseph D, Katukojvala S. Pyridazine N-Oxides as Precursors of Metallocarbenes: Rhodium-Catalyzed Transannulation with Pyrroles. Org Lett 2015; 17:5878-81. [DOI: 10.1021/acs.orglett.5b03064] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vinaykumar Kanchupalli
- Department of Chemistry, Indian Institute of Science Education & Research, Bhopal, Madhya Pradesh 462066, India
| | - Desna Joseph
- Department of Chemistry, Indian Institute of Science Education & Research, Bhopal, Madhya Pradesh 462066, India
| | - Sreenivas Katukojvala
- Department of Chemistry, Indian Institute of Science Education & Research, Bhopal, Madhya Pradesh 462066, India
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82
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Huang H, Cai J, Ji X, Xiao F, Chen Y, Deng GJ. Internal Oxidant-Triggered Aerobic Oxygenation and Cyclization of Indoles under Copper Catalysis. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508076] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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83
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Huang H, Cai J, Ji X, Xiao F, Chen Y, Deng GJ. Internal Oxidant-Triggered Aerobic Oxygenation and Cyclization of Indoles under Copper Catalysis. Angew Chem Int Ed Engl 2015; 55:307-11. [DOI: 10.1002/anie.201508076] [Citation(s) in RCA: 154] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 09/25/2015] [Indexed: 01/08/2023]
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84
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Minami Y, Shiraishi Y, Kodama T, Kanda M, Yamada K, Anami T, Hiyama T. Alkynoxy-Directed C–H Functionalizations: Palladium(0)-Catalyzed Annulations of Alkynyl Aryl Ethers with Alkynes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2015. [DOI: 10.1246/bcsj.20150180] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yasunori Minami
- Research and Development Initiative, Chuo University
- JST, ACT-C
| | | | | | - Mayuko Kanda
- Department of Applied Chemistry, Chuo University
| | | | | | - Tamejiro Hiyama
- Research and Development Initiative, Chuo University
- JST, ACT-C
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85
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Rajasekar S, Yadagiri D, Anbarasan P. One-Pot Aminoethylation of Indoles/Pyrroles with Alkynes and Sulfonyl Azides. Chemistry 2015; 21:17079-84. [DOI: 10.1002/chem.201502201] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 09/10/2015] [Indexed: 01/22/2023]
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86
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Yadagiri D, Anbarasan P. Tandem 1,2-sulfur migration and (aza)-Diels-Alder reaction of β-thio-α-diazoimines: rhodium catalyzed synthesis of (fused)-polyhydropyridines, and cyclohexenes. Chem Sci 2015; 6:5847-5852. [PMID: 29861910 PMCID: PMC5950192 DOI: 10.1039/c5sc02379c] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 07/09/2015] [Indexed: 01/02/2023] Open
Abstract
Rhodium catalyzed synthesis of substituted tetrahydropyridines was accomplished from readily accessible thio-tethered N-sulfonyl-1,2,3-triazoles. The reaction involves tandem rhodium catalyzed 1,2-sulfur migration in β-thio-α-diazoimines, generated from thio-tethered N-sulfonyl-1,2,3-triazoles, to thio-substituted 1-azadiene and subsequent self aza-Diels-Alder reaction. Interestingly, the methodology was effectively extended to the synthesis of fused tetrahydropyridines, dihydropyridines and cyclohexenes through the in situ trapping of the intermediate, 1-azadiene, with various dienophiles such as enol ether, enamine, ketene S,S-acetal, alkyne, alkene and diene. Furthermore, the direct conversion of propargyl sulfides to (fused)-tetrahydropyridines was also achieved through the successful integration of copper and rhodium catalysts in one-pot.
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Affiliation(s)
- Dongari Yadagiri
- Department of Chemistry , Indian Institute of Technology Madras , Chennai 600036 , India .
| | - Pazhamalai Anbarasan
- Department of Chemistry , Indian Institute of Technology Madras , Chennai 600036 , India .
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87
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Bai Y, Yin J, Liu Z, Zhu G. Construction of 1-Naphthols via Benzannulation Based on the Reaction of Aryl tert-Butyl Ynol Ethers with Ynamides or Ynol Ethers. J Org Chem 2015; 80:10226-33. [PMID: 26389568 DOI: 10.1021/acs.joc.5b01858] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A new version of benzannulation featuring the use of aromatic tert-butyl ynol ethers as the convenient precursors for arylketenes has been developed. Both ynamides and ynol ethers undergo this reaction smoothly, giving 3-amino and 3-alkoxy 1-naphthols in good to excellent yields under the heated reaction conditions. The high efficiency, excellent regioselectivity, good functional group compatibility, and broad substrate scope render this reaction particularly valuable for organic synthesis.
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Affiliation(s)
- Yihui Bai
- Department of Chemistry, Zhejiang Normal University , 688 Yingbin Road, Jinhua 321004, China
| | - Jing Yin
- Department of Chemistry, Zhejiang Normal University , 688 Yingbin Road, Jinhua 321004, China
| | - Zhicheng Liu
- Department of Chemistry, Zhejiang Normal University , 688 Yingbin Road, Jinhua 321004, China
| | - Gangguo Zhu
- Department of Chemistry, Zhejiang Normal University , 688 Yingbin Road, Jinhua 321004, China
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88
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Shi Y, Yu X, Li CY. Rhodium-Catalyzed Synthesis of 2,5-Epoxybenzo[f][1,4]oxazepines by Tandem Reaction of 1-Sulfonyl-1,2,3-triazoles and Salicylaldehydes. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500912] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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89
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Synthesis of substituted 3-methylene-2,3-dihydrobenzofurans and 3-methylbenzofurans by rhodium (II)-catalyzed annulation. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.06.075] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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90
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Pan XH, Jiang P, Jia ZH, Xu K, Cao J, Chen C, Shen MH, Xu HD. Expedient catalytic construction of azabicyclo[4.1.0]/[5.1.0] carbaldehydes via intramolecular cyclopropanation. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.05.113] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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91
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Hong X, Bercovici DA, Yang Z, Al-Bataineh N, Srinivasan R, Dhakal RC, Houk KN, Brewer M. Mechanism and Dynamics of Intramolecular C-H Insertion Reactions of 1-Aza-2-azoniaallene Salts. J Am Chem Soc 2015; 137:9100-7. [PMID: 26151292 DOI: 10.1021/jacs.5b04474] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The 1-aza-2-azoniaallene salts, generated from α-chloroazo compounds by treatment with halophilic Lewis acids, undergo intramolecular C-H amination reactions to form pyrazolines in good to excellent yields. This intramolecular amination occurs readily at both benzylic and tertiary aliphatic positions and proceeds at an enantioenriched chiral center with retention of stereochemistry. Competition experiments show that insertion occurs more readily at an electron-rich benzylic position than it does at an electron-deficient one. The C-H amination reaction occurs only with certain tethers connecting the heteroallene cation and the pendant aryl groups. With a longer tether or when the reaction is intermolecular, electrophilic aromatic substitution occurs instead of C-H amination. The mechanism and origins of stereospecificity and chemoselectivity were explored with density functional theory (B3LYP and M06-2X). The 1-aza-2-azoniaallene cation undergoes C-H amination through a hydride transfer transition state to form the N-H bond, and the subsequent C-N bond formation occurs spontaneously to generate the heterocyclic product. This concerted two-stage mechanism was shown by IRC and quasi-classical molecular dynamics trajectory studies.
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Affiliation(s)
- Xin Hong
- †Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Daniel A Bercovici
- ‡Department of Chemistry, The University of Vermont, Burlington, Vermont 05405, United States
| | - Zhongyue Yang
- †Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Nezar Al-Bataineh
- ‡Department of Chemistry, The University of Vermont, Burlington, Vermont 05405, United States
| | - Ramya Srinivasan
- ‡Department of Chemistry, The University of Vermont, Burlington, Vermont 05405, United States
| | - Ram C Dhakal
- ‡Department of Chemistry, The University of Vermont, Burlington, Vermont 05405, United States
| | - K N Houk
- †Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Matthias Brewer
- ‡Department of Chemistry, The University of Vermont, Burlington, Vermont 05405, United States
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92
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Miura T, Zhao Q, Funakoshi Y, Murakami M. Thermal Reaction of 4-(p-Aminophenyl)-1-sulfonyl-1,2,3-triazoles Furnishing Benzoyl Cyanides through N-Sulfinyl Imine Intermediates. CHEM LETT 2015. [DOI: 10.1246/cl.150320] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Tomoya Miura
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University
| | - Qiang Zhao
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University
| | - Yuuta Funakoshi
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University
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93
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Structural diversity and photoluminescence of copper(I) carboxylates: From discrete complexes to infinite metal-based wires and helices. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2015.03.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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94
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Palladium-catalyzed annulation of alkynyl aryl ethers with isocyanates through o-C–H cleavage. Synthesis of solid-state emissive 2-methylidene-2H-1,4-benzoxazin-3(4H)-ones. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.02.062] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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95
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Chirkova ZV, Kabanova MV, Sergeev SS, Filimonov SI, Abramov IG, Samet AV, Suponitsky KY. Synthesis of 3-acyl-1-hydroxy-1H-indole-5,6-dicarbonitriles. MENDELEEV COMMUNICATIONS 2015. [DOI: 10.1016/j.mencom.2015.07.030] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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96
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Xie Q, Song XS, Qu D, Guo LP, Xie ZZ. DFT Study on the Rhodium(II)-Catalyzed C–H Functionalization of Indoles: Enol versus Oxocarbenium Ylide. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00378] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Qiao Xie
- Department
of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, People’s Republic of China
| | - Xian-Shuang Song
- Department
of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, People’s Republic of China
| | - Deyu Qu
- Department
of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, People’s Republic of China
| | - Li-Ping Guo
- Department
of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, People’s Republic of China
| | - Zhi-Zhong Xie
- Department
of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, People’s Republic of China
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97
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Murugavel G, Punniyamurthy T. Microwave-Assisted Copper-Catalyzed Four-Component Tandem Synthesis of 3-N-Sulfonylamidine Coumarins. J Org Chem 2015; 80:6291-9. [DOI: 10.1021/acs.joc.5b00738] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Govindarasu Murugavel
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India
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98
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Miura T, Nakamuro T, Biyajima T, Murakami M. Synthesis of α,β,γ,δ-Unsaturated Imines from N-Sulfonyl-1,2,3-triazoles and Allenes through Rhodium-catalyzed Cyclopropanation and Thermal Rearrangement. CHEM LETT 2015. [DOI: 10.1246/cl.150080] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Tomoya Miura
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University
| | - Takayuki Nakamuro
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University
| | - Tsuneaki Biyajima
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University
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99
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Lee DJ, Yoo EJ. Efficient Synthesis of C–N-Coupled Heterobiaryls by Sequential N–H Functionalization Reactions. Org Lett 2015; 17:1830-3. [DOI: 10.1021/acs.orglett.5b00625] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Dong Jin Lee
- Department
of Chemistry, Kangwon National University, Chuncheon 200-701, Korea
| | - Eun Jeong Yoo
- Department
of Chemistry, Kangwon National University, Chuncheon 200-701, Korea
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100
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Saito N, Sun Z, Sato Y. Nickel-promoted highly regioselective carboxylation of aryl ynol ether and its application to the synthesis of chiral β-aryloxypropionic acid derivatives. Chem Asian J 2015; 10:1170-6. [PMID: 25677637 DOI: 10.1002/asia.201403399] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Indexed: 11/07/2022]
Abstract
Nickel(0)-promoted carboxylation of aryl ynol ether proceeded in a highly regioselective manner to produce α-substituted-β-aryloxyacrylic acid derivatives. The α-substituted-β-aryloxyacrylic acids were transformed into the corresponding β-aryloxypropionic acid derivative as an optically active form via rhodium-catalyzed asymmetric hydrogenation.
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Affiliation(s)
- Nozomi Saito
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812 (Japan).
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