1
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Khaitan B, Gandhi S. Pd/Brønsted Acid-Catalyzed Atom-Economical [3 + 3] Annulation of 4-Hydroxycoumarins and Skipped Enynes. Org Lett 2024; 26:6961-6965. [PMID: 39121496 DOI: 10.1021/acs.orglett.4c02215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2024]
Abstract
We report an unprecedented application of skipped enynes as bis-electrophiles under palladium/Brønsted acid catalysis. A [3 + 3] annulation of skipped enynes with 4-hydroxy coumarins as bis-nucleophiles enables a completely atom-economic synthesis of fused O-heterocycles. The reaction is proposed to proceed via the Pd-catalyzed C-H activation of the skipped enyne leading to a diene, which upon subsequent activation by Pd and an O-nucleophilic attack leads to the regioselective formation of a six-membered heterocyclic ring, with a vinyl substituent.
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Affiliation(s)
- Bhavya Khaitan
- Department of Chemical Sciences, Indian Institute of Science Education and Research Berhampur, Berhampur, Odisha 760010, India
| | - Shikha Gandhi
- Department of Chemical Sciences, Indian Institute of Science Education and Research Berhampur, Berhampur, Odisha 760010, India
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2
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Shikari A, Parida C, Chandra Pan S. Catalytic Asymmetric Dearomatization of 2,3-Disubstituted Indoles by a [4 + 2] Cycloaddition Reaction with In Situ Generated Vinylidene ortho-Quinone Methides: Access to Polycyclic Fused Indolines. Org Lett 2024; 26:5057-5062. [PMID: 38489515 DOI: 10.1021/acs.orglett.4c00557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2024]
Abstract
A protocol of enantioselective dearomatization of 2,3-disubstituted indoles by an organocatalytic intermolecular (4 + 2) cycloaddition reaction with in situ generated vinylidene ortho-quinone methide has been documented. A wide range of polycyclic 2,3-fused indolines containing vicinal quaternary carbon stereocenters was readily prepared in high yields and with excellent diastereo- and enantioselectivities.
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Affiliation(s)
- Amit Shikari
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
| | - Chandrakanta Parida
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
| | - Subhas Chandra Pan
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
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3
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Mahulkar PS, Joshi S, Banjare SK, Najiar LO, Ravikumar PC. Expanding the Scope of Alkynes in C-H Activation: Weak Chelation-Assisted Cobalt-Catalyzed Synthesis of Indole C(4)-Acrylophenone via C-O Bond Cleavage of Propargylic Ethers. Org Lett 2024; 26:2091-2096. [PMID: 38441887 DOI: 10.1021/acs.orglett.4c00389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2024]
Abstract
Herein, we report the facile synthesis of indole C(4)-acrylophenone using a C-H bond activation strategy. For this conversion, an unsymmetrical alkyne (phenylethynyl ether) in the presence of cobalt(III)-catalyst works efficiently. In this process, alkyne gets oxidized in the presence of in situ generated water, which is the key step for this method, for which trifluoroethanol is the water source. The pivaloyl directing group chelates effectively to generate the cobaltacycle intermediate, which was detected through high-resolution mass spectrometry (HRMS). Also, the formation of bis(2,2,2-trifluoroethyl) ether has been confirmed and quantified using 19F NMR. In addition, the applicability of obtained indole C(4)-acrylophenone product has been demonstrated by performing the Nazarov cyclization and conjugate addition to the α,β-unsaturated ketone moiety.
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Affiliation(s)
- Pranav Shridhar Mahulkar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, Odisha 752050, India
- Homi Bhabha National Institute (HBNI), Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Sofaya Joshi
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, Odisha 752050, India
- Homi Bhabha National Institute (HBNI), Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Shyam Kumar Banjare
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, Odisha 752050, India
- Homi Bhabha National Institute (HBNI), Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Lamphiza O Najiar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, Odisha 752050, India
- Homi Bhabha National Institute (HBNI), Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Ponneri C Ravikumar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, Odisha 752050, India
- Homi Bhabha National Institute (HBNI), Training School Complex, Anushaktinagar, Mumbai 400094, India
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4
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Bhoi SR, Debnath C, Gandhi S. Pd/Brønsted acid catalysed intramolecular N-allylation of indoles and pyrroles with alkynes for the synthesis of N-fused heterocycles. Chem Commun (Camb) 2024; 60:428-431. [PMID: 38086631 DOI: 10.1039/d3cc05023h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
We, herein, report a Pd(0) and Brønsted acid-catalyzed redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes for the synthesis of biologically important imidazolidinone-fused N-heterocycles. The allylation is completely atom-economical and is applicable to a wide range of substrates. The methodology eliminates the use of a leaving group or an oxidizing agent, often employed for the allylation of nucleophiles. To the best of our knowledge, N-allylation of indoles and pyrroles with alkynes has not been reported to date.
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Affiliation(s)
- Saswat Ranjan Bhoi
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Berhampur 760010, India.
| | - Chhanda Debnath
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Berhampur 760010, India.
| | - Shikha Gandhi
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Berhampur 760010, India.
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5
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Li L, Wang S, Jakhar A, Shao Z. Pd-catalyzed functionalization of 1,3-enynes via alkylene-π-allylpalladium intermediates. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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6
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Banjare SK, Mahulkar PS, Nanda T, Pati BV, Najiar LO, Ravikumar PC. Diverse reactivity of alkynes in C-H activation reactions. Chem Commun (Camb) 2022; 58:10262-10289. [PMID: 36040423 DOI: 10.1039/d2cc03294e] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Alkynes occupy a prominent role as a coupling partner in the transition metal-catalysed directed C-H activation reactions. Due to low steric requirements and linear geometry, alkynes can effectively coordinate with metal d-orbitals. This makes alkynes one of the most successful coupling partners in terms of the number of useful transformations. Remarkably, by changing the reaction conditions and transition-metals from 5d to 3d, the pattern of reactivity of alkynes also changes. Due to the varied reactivity of alkynes, such as alkenylation, annulation, alkylation, and alkynylation, they have been extensively used for the synthesis of valuable organic molecules. Despite enormous explorations with alkynes, there are still a lot more possible ways by which they can be made to react with M-C bonds generated through C-H activation. Practically there is no limit for the creative use of this approach. In particular with the development of new high and low valent first-row metal catalysts, there is plenty of scope for this chemistry to evolve as one of the most explored areas of research in the coming years. Therefore, a highlight article about alkynes is both timely and useful for synthetic chemists working in this area. Herein, we have highlighted the diverse reactivity of alkynes with various transition metals (Ir, Rh, Ru, Pd, Mn, Fe, Co, Ni, Cu) and their applications, along with some of our thoughts on future prospects.
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Affiliation(s)
- Shyam Kumar Banjare
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Odisha 752050, India. .,Homi Bhabha National Institute (HBNI), Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Pranav Shridhar Mahulkar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Odisha 752050, India. .,Homi Bhabha National Institute (HBNI), Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Tanmayee Nanda
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Odisha 752050, India. .,Homi Bhabha National Institute (HBNI), Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Bedadyuti Vedvyas Pati
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Odisha 752050, India. .,Homi Bhabha National Institute (HBNI), Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Lamphiza O Najiar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Odisha 752050, India. .,Homi Bhabha National Institute (HBNI), Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Ponneri C Ravikumar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Odisha 752050, India. .,Homi Bhabha National Institute (HBNI), Training School Complex, Anushaktinagar, Mumbai 400094, India
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7
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Cera G, Maestri G. Palladium/Brønsted Acid Catalysis for Hydrofunctionalizations of Alkynes: from Tsuji‐Trost Allylations to Stereoselective Methodologies. ChemCatChem 2022. [DOI: 10.1002/cctc.202200295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gianpiero Cera
- Universita degli Studi di Parma Dipartimento delle Scienze Chimiche, della Vita e della Sostenibilità Ambientale Parco Area delle Scienze, 17/A 43124 Parma ITALY
| | - Giovanni Maestri
- University of Parma: Universita degli Studi di Parma Dipartimento delle Scienze Chimiche, della Vita e della Sostenibilità Ambientale Parco Area delle Scienze, 17/A 43124 Parma ITALY
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8
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Haidar AK, Kjeldsen ND, Troelsen NS, Previtali V, Lundquist KP, Larsen TO, Clausen MH. A Concise Total Synthesis of the Fungal Isoquinoline Alkaloid TMC-120B. Molecules 2022; 27:521. [PMID: 35056832 PMCID: PMC8779217 DOI: 10.3390/molecules27020521] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/23/2021] [Accepted: 12/28/2021] [Indexed: 12/13/2022] Open
Abstract
Recent reports of antiepileptic activity of the fungal alkaloid TMC-120B have renewed the interest in this natural product. Previous total syntheses of TMC-120B comprise many steps and have low overall yields (11-17 steps, 1.5-2.9% yield). Thus, to access this compound more efficiently, we herein present a concise and significantly improved total synthesis of the natural product. Our short synthesis relies on two key cyclization steps to assemble the central scaffold: isoquinoline formation via an ethynyl-imino cyclization and an intramolecular Friedel-Crafts reaction to form the furanone.
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Affiliation(s)
- Ahmad K. Haidar
- Center for Nanomedicine and Theranostics, Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800 Kongens Lyngby, Denmark; (A.K.H.); (N.S.T.); (V.P.); (K.P.L.)
| | | | - Nikolaj S. Troelsen
- Center for Nanomedicine and Theranostics, Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800 Kongens Lyngby, Denmark; (A.K.H.); (N.S.T.); (V.P.); (K.P.L.)
| | - Viola Previtali
- Center for Nanomedicine and Theranostics, Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800 Kongens Lyngby, Denmark; (A.K.H.); (N.S.T.); (V.P.); (K.P.L.)
| | - Kasper P. Lundquist
- Center for Nanomedicine and Theranostics, Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800 Kongens Lyngby, Denmark; (A.K.H.); (N.S.T.); (V.P.); (K.P.L.)
| | - Thomas O. Larsen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 221, 2800 Kongens Lyngby, Denmark;
| | - Mads H. Clausen
- Center for Nanomedicine and Theranostics, Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800 Kongens Lyngby, Denmark; (A.K.H.); (N.S.T.); (V.P.); (K.P.L.)
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9
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Lu CJ, Chen YT, Wang H, Li YJ. Palladium-catalyzed dearomative allylation of indoles with cyclopropyl acetylenes: access to indolenine derivatives. Org Biomol Chem 2021; 19:635-644. [PMID: 33367392 DOI: 10.1039/d0ob02103b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A palladium-catalyzed redox-neutral allylic alkylation of indoles with cyclopropyl acetylenes has been disclosed. Various 1,3-diene indolenine framework bearing a quaternary stereocenter at the C3 position were synthesized straightforwardly in good to excellent yields with high regio- and stereoselectivities. The reaction could be further expanded to the dearomatization of naphthols to synthesize functionalized cyclohexadienones with 1,3-diene motifs. The reaction exhibited high atom economy and good functional group tolerance.
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Affiliation(s)
- Chuan-Jun Lu
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China. and College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Yu-Ting Chen
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
| | - Hong Wang
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
| | - Yu-Jin Li
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
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10
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Liang RX, Zhong C, Liu ZH, Yang M, Tang HW, Chen JF, Yang YF, Jia YX. Enantioselective Arylation of Tetrasubstituted Enamines: Access to Enantioenriched Indolenine and 1H-Indole Derivatives. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ren-Xiao Liang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Chao Zhong
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Zhi-Hong Liu
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Miao Yang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Heng-Wei Tang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Jian-Fei Chen
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Yun-Fang Yang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Yi-Xia Jia
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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11
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Fu Z, Zhu J, Guo S, Lin A. Palladium-catalyzed allylic alkylation dearomatization of β-naphthols and indoles with gem-difluorinated cyclopropanes. Chem Commun (Camb) 2021; 57:1262-1265. [DOI: 10.1039/d0cc07529a] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A palladium-catalyzed allylic alkylation dearomatization of β-naphthols and indoles with gem-difluorinated cyclopropanes has been developed for the first time.
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Affiliation(s)
- Zhiyuan Fu
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry
- School of Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Jianping Zhu
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry
- School of Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Songjin Guo
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry
- School of Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Aijun Lin
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry
- School of Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
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12
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Lu J, Liang R, Jia Y. Copper-Catalyzed Intramolecular Dearomative Arylation of Naphthylamines. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202105050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Yamaguchi M, Hagiwara R, Gayama K, Suzuki K, Sato Y, Konishi H, Manabe K. Direct C3-Selective Arylation of N-Unsubstituted Indoles with Aryl Chlorides, Triflates, and Nonaflates Using a Palladium-Dihydroxyterphenylphosphine Catalyst. J Org Chem 2020; 85:10902-10912. [PMID: 32806091 DOI: 10.1021/acs.joc.0c01494] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A palladium-dihydroxyterphenylphosphine (DHTP) catalyst was successfully applied to the direct C3-arylation of N-unsubstituted indoles with aryl chlorides, triflates, and nonaflates. This catalyst showed C3-selectivity, whereas catalysts with other structurally related ligands exhibited N1-selectivity. Complex formation between the lithium salts of the ligand and the indole is assumed to accelerate the arylation at the C3 position. Reactions using 3-alkylindoles afforded 3,3-disubstituted indolenines, which can be further converted to the corresponding indoline derivatives.
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Affiliation(s)
- Miyuki Yamaguchi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Ryoya Hagiwara
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Kanami Gayama
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Kohei Suzuki
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yusuke Sato
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Hideyuki Konishi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Kei Manabe
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
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14
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Ciccolini C, Mari G, Gatti FG, Gatti G, Giorgi G, Mantellini F, Favi G. Synthesis of Polycyclic Fused Indoline Scaffolds through a Substrate-Guided Reactivity Switch. J Org Chem 2020; 85:11409-11425. [PMID: 32786612 PMCID: PMC8010796 DOI: 10.1021/acs.joc.0c01489] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
![]()
Zn(II)-catalyzed
divergent synthesis of functionalized polycyclic
indolines through formal [3 + 2] and [4 + 2] cycloadditions of indoles
with 1,2-diaza-1,3-dienes (DDs) is reported. The nature and type of
substituents of substrates are found to act as a chemical switch to
trigger two distinct reaction pathways and to obtain two different
types of products upon the influence of the same catalyst. The mechanism
of both [4 + 2] and [3 + 2] cycloadditions was investigated and fully
rationalized by density functional theory (DFT) calculations.
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Affiliation(s)
- Cecilia Ciccolini
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies, University of Urbino "Carlo Bo", Via I Maggetti 24, 61029 Urbino, Italy
| | - Giacomo Mari
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies, University of Urbino "Carlo Bo", Via I Maggetti 24, 61029 Urbino, Italy
| | - Francesco G Gatti
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Giuseppe Gatti
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies, University of Urbino "Carlo Bo", Via I Maggetti 24, 61029 Urbino, Italy
| | - Gianluca Giorgi
- Department of Biotechnologies, Chemistry & Pharmacy, University of Siena, Via A. Moro 2, 53100 Siena, Italy
| | - Fabio Mantellini
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies, University of Urbino "Carlo Bo", Via I Maggetti 24, 61029 Urbino, Italy
| | - Gianfranco Favi
- Department of Biomolecular Sciences, Section of Chemistry and Pharmaceutical Technologies, University of Urbino "Carlo Bo", Via I Maggetti 24, 61029 Urbino, Italy
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15
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Lombardi L, Bellini D, Bottoni A, Calvaresi M, Monari M, Kovtun A, Palermo V, Melucci M, Bandini M. Allylic and Allenylic Dearomatization of Indoles Promoted by Graphene Oxide by Covalent Grafting Activation Mode. Chemistry 2020; 26:10427-10432. [PMID: 32346922 DOI: 10.1002/chem.202001373] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Indexed: 12/14/2022]
Abstract
The site-selective allylative and allenylative dearomatization of indoles with alcohols was performed under carbocatalytic regime in the presence of graphene oxide (GO, 10 wt % loading) as the promoter. Metal-free conditions, absence of stoichiometric additive, environmentally friendly conditions (H2 O/CH3 CN, 55 °C, 6 h), broad substrate scope (33 examples, yield up to 92 %) and excellent site- and stereoselectivity characterize the present methodology. Moreover, a covalent activation model exerted by GO functionalities was corroborated by spectroscopic, experimental and computational evidences. Recovering and regeneration of the GO catalyst through simple acidic treatment was also documented.
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Affiliation(s)
- Lorenzo Lombardi
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum-Università di Bologna, via Selmi 2, 40126, Bologna, Italy
| | - Daniele Bellini
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum-Università di Bologna, via Selmi 2, 40126, Bologna, Italy
| | - Andrea Bottoni
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum-Università di Bologna, via Selmi 2, 40126, Bologna, Italy
| | - Matteo Calvaresi
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum-Università di Bologna, via Selmi 2, 40126, Bologna, Italy
| | - Magda Monari
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum-Università di Bologna, via Selmi 2, 40126, Bologna, Italy
| | - Alessandro Kovtun
- Istituto per la Sintesi Organica e Fotoreattività (ISOF)-CNR, via Gobetti 101, 40129, Bologna, Italy
| | - Vincenzo Palermo
- Istituto per la Sintesi Organica e Fotoreattività (ISOF)-CNR, via Gobetti 101, 40129, Bologna, Italy
- Chalmers University of Technology, Industrial and Materials Science, Hörsalsvägen 7A, 412 96, Goteborg, Sweden
| | - Manuela Melucci
- Istituto per la Sintesi Organica e Fotoreattività (ISOF)-CNR, via Gobetti 101, 40129, Bologna, Italy
| | - Marco Bandini
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum-Università di Bologna, via Selmi 2, 40126, Bologna, Italy
- Consorzio C.I.N.M.P.I.S., via Selmi 2, 40126, Bologna, Italy
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16
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Lu CJ, Yu X, Chen YT, Song QB, Yang ZP, Wang H. Palladium-Catalyzed Allylation of Cyclopropyl Acetylenes with Oxindoles to Construct 1,3-Dienes. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901536] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Chuan-Jun Lu
- College of Chemical Engineering; Zhejiang University of Technology; Chaowang Road 18# 310014 Hangzhou ZheJiang China
| | - Xin Yu
- College of Chemical Engineering; Zhejiang University of Technology; Chaowang Road 18# 310014 Hangzhou ZheJiang China
| | - Yu-Ting Chen
- College of Chemical Engineering; Zhejiang University of Technology; Chaowang Road 18# 310014 Hangzhou ZheJiang China
| | - Qing-Bao Song
- College of Chemical Engineering; Zhejiang University of Technology; Chaowang Road 18# 310014 Hangzhou ZheJiang China
| | - Zhen-Ping Yang
- College of Chemical Engineering; Zhejiang University of Technology; Chaowang Road 18# 310014 Hangzhou ZheJiang China
| | - Hong Wang
- College of Chemical Engineering; Zhejiang University of Technology; Chaowang Road 18# 310014 Hangzhou ZheJiang China
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17
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Ji DW, Yang F, Chen BZ, Min XT, Kuai CS, Hu YC, Chen QA. Rhodium-catalyzed regio- and enantioselective allylic alkylation of pyrazol-5-ones with alkynes. Chem Commun (Camb) 2020; 56:8468-8471. [DOI: 10.1039/d0cc04002a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
An atom-economical, regio- and enantioselective allylic alkylation of pyrazol-5-ones with alkynes was developed under rhodium catalysis.
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Affiliation(s)
- Ding-Wei Ji
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
- University of Chinese Academy of Sciences
| | - Fan Yang
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Bing-Zhi Chen
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
- University of Chinese Academy of Sciences
| | - Xiang-Ting Min
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
- University of Chinese Academy of Sciences
| | - Chang-Sheng Kuai
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Yan-Cheng Hu
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Qing-An Chen
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
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18
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Ren W, Zuo QM, Niu YN, Yang SD. Palladium-NHC-Catalyzed Allylic Alkylation of Pronucleophiles with Alkynes. Org Lett 2019; 21:7956-7960. [PMID: 31513418 DOI: 10.1021/acs.orglett.9b02937] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The palladium-N-heterocyclic carbene (NHC)-catalyzed allylic alkylation of various pronucleophiles with alkynes has been accomplished under mild conditions. The protocol exhibits broad functional group compatibility and high atom economy. Moreover, the catalytic process avoids the use of external oxidants and acid as additives.
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Affiliation(s)
- Wei Ren
- State Key Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou 730000 , P. R. China
| | - Qian-Ming Zuo
- State Key Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou 730000 , P. R. China
| | - Yan-Ning Niu
- Department of Teaching and Research , Nanjing Forestry University , Huaian 223003 , P. R. China
| | - Shang-Dong Yang
- State Key Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou 730000 , P. R. China
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19
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Ji DW, Hu YC, Zheng H, Zhao CY, Chen QA, Dong VM. A regioselectivity switch in Pd-catalyzed hydroallylation of alkynes. Chem Sci 2019; 10:6311-6315. [PMID: 31341584 PMCID: PMC6598511 DOI: 10.1039/c9sc01527b] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 05/16/2019] [Indexed: 12/16/2022] Open
Abstract
By exploiting the reactivity of a vinyl-Pd species, we control the regioselectivity in hydroallylation of alkynes under Pd-hydride catalysis. A monophosphine ligand and carboxylic acid combination promotes 1,5-dienes through a pathway involving isomerization of alkynes to allenes. In contrast, a bisphosphine ligand and copper cocatalyst favor 1,4-dienes via a mechanism that involves transmetalation. Our study highlights how to access different isomers by diverting a common organometallic intermediate.
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Affiliation(s)
- Ding-Wei Ji
- Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , P. R. China .
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Yan-Cheng Hu
- Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , P. R. China .
| | - Hao Zheng
- Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , P. R. China .
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Chao-Yang Zhao
- Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , P. R. China .
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Qing-An Chen
- Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , P. R. China .
| | - Vy M Dong
- Department of Chemistry , University of California , Irvine , California 92697-2025 , USA
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20
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Zhang HJ, Yang ZP, Gu Q, You SL. Tandem Pd-Catalyzed Intermolecular Allylic Alkylation/Allylic Dearomatization Reaction of Benzoylmethyl pyridines, Pyrazines, and Quinolines. Org Lett 2019; 21:3314-3318. [DOI: 10.1021/acs.orglett.9b01060] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Hui-Jun Zhang
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Ze-Peng Yang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Qing Gu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Shu-Li You
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
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21
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Lu CJ, Yu X, Chen DK, Wang H, Song QB, Gao JR. Palladium-catalyzed allylation of aminophenol with alkynes to construct C-N bonds. Org Biomol Chem 2019; 17:3545-3551. [PMID: 30896704 DOI: 10.1039/c9ob00333a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A method for the allylic alkylation of aminophenol with alkynes was developed using a palladium-catalysed allylation reaction with 100% atom economy. A series of structurally diverse N-allylic substituted allylamines were synthesized in good yields with high chemo-, regio-, and stereoselectivities under mild conditions.
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Affiliation(s)
- Chuan-Jun Lu
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
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22
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Shabalin DA, Kuzmin AV, Schmidt EY, Trofimov BA. Non-Aromatic 3H-Pyrroles in the Reaction with Nucleophiles: Is High Reactivity a Myth? European J Org Chem 2019. [DOI: 10.1002/ejoc.201900152] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dmitrii A. Shabalin
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch of the Russian Academy of Sciences; 1 Favorsky St 664033 Irkutsk Russian Federation
| | - Anton V. Kuzmin
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch of the Russian Academy of Sciences; 1 Favorsky St 664033 Irkutsk Russian Federation
- Limnological Institute; Siberian Branch of the Russian Academy of Sciences; 3 Ulan-Batorskaya St 664033 Irkutsk Russian Federation
| | - Elena Yu. Schmidt
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch of the Russian Academy of Sciences; 1 Favorsky St 664033 Irkutsk Russian Federation
| | - Boris A. Trofimov
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch of the Russian Academy of Sciences; 1 Favorsky St 664033 Irkutsk Russian Federation
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23
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Ding L, Gao RD, You SL. Palladium(0)-Catalyzed Intermolecular Asymmetric Cascade Dearomatization Reaction of Indoles with Propargyl Carbonate. Chemistry 2019; 25:4330-4334. [PMID: 30694590 DOI: 10.1002/chem.201900425] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Indexed: 12/28/2022]
Abstract
An intermolecular asymmetric cascade dearomatization reaction of indole derivatives with propargyl carbonate was developed. The challenges associated with both the chemoselectivity between the carbon and nitrogen nucleophile and the enantioselective control during the formation of an all-carbon quaternary stereogenic center were well addressed by a Pd catalytic system derived from the Feringa ligand. A series of enantioenriched multiply substituted fused indolenines were provided in good yields (71-86 %) with excellent enantioselectivity (91-96 % ee) and chemoselectivity (3/4>19:1 in most cases).
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Affiliation(s)
- Lu Ding
- School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai, 201210, P. R. China
| | - Run-Duo Gao
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, P. R. China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, P. R. China.,School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai, 201210, P. R. China.,Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, P. R. China
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24
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Tan B, Bai L, Ding P, Liu J, Wang Y, Luan X. Palladium-Catalyzed Intermolecular [4+1] Spiroannulation by C(sp 3 )-H Activation and Naphthol Dearomatization. Angew Chem Int Ed Engl 2019; 58:1474-1478. [PMID: 30537202 DOI: 10.1002/anie.201813202] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Indexed: 02/05/2023]
Abstract
A novel palladium-catalyzed [4+1] spiroannulation was developed by using a C(sp3 )-H activation/naphthol dearomatization approach. This bimolecular domino reaction of two aryl halides was realized through a sequence of cyclometallation-facilitated C(sp3 )-H activation, biaryl cross-coupling, and naphthol dearomatization, thus rendering the rapid assembly of a new class of spirocyclic molecules in good yields with broad functional-group tolerance. Preliminary mechanistic studies indicate that C-H cleavage is likely involved in the rate-determining step, and a five-membered palladacycle was identified as the key intermediate for the intermolecular coupling.
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Affiliation(s)
- Bojun Tan
- Key Laboratory of Synthetic and Natural Functional, Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Lu Bai
- Key Laboratory of Synthetic and Natural Functional, Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Pin Ding
- Key Laboratory of Synthetic and Natural Functional, Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Jingjing Liu
- Key Laboratory of Synthetic and Natural Functional, Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Yaoyu Wang
- Key Laboratory of Synthetic and Natural Functional, Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Xinjun Luan
- Key Laboratory of Synthetic and Natural Functional, Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China.,State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin, 300071, China
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25
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Fernandes RA, Nallasivam JL. Catalytic allylic functionalization via π-allyl palladium chemistry. Org Biomol Chem 2019; 17:8647-8672. [DOI: 10.1039/c9ob01725a] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
This review highlights the palladium-catalyzed allylic C–H functionalizations via π-allyl palladium reported from early 2014 to present date.
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Affiliation(s)
- Rodney A. Fernandes
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Jothi L. Nallasivam
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
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26
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Palmieri A, Petrini M. Tryptophol and derivatives: natural occurrence and applications to the synthesis of bioactive compounds. Nat Prod Rep 2019; 36:490-530. [DOI: 10.1039/c8np00032h] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This report presents some fundamental aspects related to the natural occurrence and bioactivity of tryptophol as well as the synthesis of tryptophols and their utilization for the preparation of naturally occurring alkaloid metabolites embedding the indole system.
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Affiliation(s)
- Alessandro Palmieri
- School of Science and Technology
- Chemistry Division
- University of Camerino
- Italy
| | - Marino Petrini
- School of Science and Technology
- Chemistry Division
- University of Camerino
- Italy
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27
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Borra S, Chandrasekhar D, Newar UD, Maurya RA. Access to 2,3-Fused Pyrroles via Visible Light Driven Coupling of α-Azidochalcones with 1/2-Naphthols, or 2-Hydroxy-1,4-Naphthoquinone. J Org Chem 2018; 84:1042-1052. [PMID: 30547589 DOI: 10.1021/acs.joc.8b02459] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
α-Azidochalcones were coupled with 1/2-naphthols or 2-hydroxy-1,4-naphthoquinone using Ru(bpy)3(PF6)2 as a photocatalyst under blue LED light irradiation to yield 2,3-fused pyrroles in high yields (68-84%). The overall transformation involves photosensitized decomposition of α-azidochalcones into highly reactive 2 H-azirines which are trapped by 1/2-naphthols or 2-hydroxy-1,4-naphthoquinone, leading to the construction of two new C-N and one new C-C bonds.
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Affiliation(s)
- Satheesh Borra
- Applied Organic Chemistry Group, Chemical Sciences & Technology Division , CSIR-North East Institute of Science & Technology (NEIST) , Jorhat - 785006 , Assam , India.,Academy of Scientific and Innovative Research (AcSIR) , CSIR-NEIST Jorhat - 785006 , Assam , India
| | - D Chandrasekhar
- Applied Organic Chemistry Group, Chemical Sciences & Technology Division , CSIR-North East Institute of Science & Technology (NEIST) , Jorhat - 785006 , Assam , India.,Academy of Scientific and Innovative Research (AcSIR) , CSIR-NEIST Jorhat - 785006 , Assam , India
| | - Uma Devi Newar
- Applied Organic Chemistry Group, Chemical Sciences & Technology Division , CSIR-North East Institute of Science & Technology (NEIST) , Jorhat - 785006 , Assam , India
| | - Ram Awatar Maurya
- Applied Organic Chemistry Group, Chemical Sciences & Technology Division , CSIR-North East Institute of Science & Technology (NEIST) , Jorhat - 785006 , Assam , India.,Academy of Scientific and Innovative Research (AcSIR) , CSIR-NEIST Jorhat - 785006 , Assam , India
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28
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Ho HE, Stephens TC, Payne TJ, O’Brien P, Taylor RJK, Unsworth WP. Merging π-Acid and Pd Catalysis: Dearomatizing Spirocyclization/Cross-Coupling Cascade Reactions of Alkyne-Tethered Aromatics. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03861] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Hon Eong Ho
- Department of Chemistry, University of York, York, U.K., YO10 5DD
| | | | - Thomas J. Payne
- Department of Chemistry, University of York, York, U.K., YO10 5DD
| | - Peter O’Brien
- Department of Chemistry, University of York, York, U.K., YO10 5DD
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29
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Nosova EV, Lipunova GN, Charushin VN, Chupakhin ON. Fluorine-containing indoles: Synthesis and biological activity. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2018.05.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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30
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Liu H, Fu Z, Gao S, Huang Y, Lin A, Yao H. Palladium-Catalyzed Hydroalkylation of Alkynes with Cyclopropanols: Access to γ,δ-Unsaturated Ketones. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800200] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Hao Liu
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy; China Pharmaceutical University; Nanjing 210009 People's Republic of China
| | - Zhiyuan Fu
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy; China Pharmaceutical University; Nanjing 210009 People's Republic of China
| | - Shang Gao
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy; China Pharmaceutical University; Nanjing 210009 People's Republic of China
| | - Yue Huang
- Department of Organic Chemistry, School of Science; China Pharmaceutical University; Nanjing 210009 People's Republic of China
| | - Aijun Lin
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy; China Pharmaceutical University; Nanjing 210009 People's Republic of China
| | - Hequan Yao
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy; China Pharmaceutical University; Nanjing 210009 People's Republic of China
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31
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Yang S, Li QZ, Xu C, Xu Q, Shi M. Rhodium-catalyzed asymmetric hydroamination and hydroindolation of keto-vinylidenecyclopropanes. Chem Sci 2018; 9:5074-5081. [PMID: 29938038 PMCID: PMC5994874 DOI: 10.1039/c8sc01595c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 05/09/2018] [Indexed: 12/23/2022] Open
Abstract
We reported a highly regio- and enantioselective hydroamination and hydroindolation of keto-vinylidenecyclopropanes via cationic Rh(i) catalysis in this context. The combination of various secondary amines and indoles with keto-vinylidenecyclopropanes afforded the corresponding hydrofunctionalization products in good to excellent yields with outstanding ee values under mild conditions. A new TMM-Rh model complex was proposed, providing an atom economical Rh-π-allyl precursor at the same time. Moreover, the resulting products could easily be transformed into more complex polyheterocycles upon further synthetic manipulation.
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Affiliation(s)
- Song Yang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals , School of Chemistry & Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China .
| | - Quan-Zhe Li
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals , School of Chemistry & Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China .
| | - Chen Xu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals , School of Chemistry & Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China .
| | - Qin Xu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals , School of Chemistry & Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China .
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals , School of Chemistry & Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China .
- State Key Laboratory and Institute of Elemento-organic Chemistry , Nankai University , Tianjin 300071 , P. R. China
- State Key Laboratory of Organometallic Chemistry , Center for Excellence in Molecular Synthesis , University of Chinese Academy of Sciences , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
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32
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Minami Y, Furuya Y, Hiyama T. Palladium/Acid‐Catalyzed Straightforward Allylation of Arenes using 1‐Substituted Propynes via Aryl C−H Bond Activation. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800234] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yasunori Minami
- Research and Development Initiative Chuo University 1–13–27 Kasuga Bunkyo-ku Tokyo 112–8551 Japan
| | - Yuki Furuya
- 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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33
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Lee JTD, Zhao Y. Direct Enantioselective α-Allylation of Unfunctionalized Cyclic Ketones with Alkynes through Pd-Amine Cooperative Catalysis. Chemistry 2018; 24:9520-9524. [DOI: 10.1002/chem.201802273] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Indexed: 01/08/2023]
Affiliation(s)
- Jin Tu Danence Lee
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - Yu Zhao
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
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34
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Minami Y, Furuya Y, Kodama T, Hiyama T. Alkenylation of Arenes Using Disubstituted Ethynes by Palladium/Carboxylic Acid Catalysis. CHEM LETT 2018. [DOI: 10.1246/cl.180143] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yasunori Minami
- Research and Development Initiative, Chuo University, Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Yuki Furuya
- Department of Applied Chemistry, Chuo University, Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Tatsuro Kodama
- 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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35
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Fang X, Zeng Y, Li Q, Wu Z, Yao H, Lin A. Redox-Neutral Atom-Economic Pd(0)-Catalyzed Dearomatization of β-Naphthols with Alkynes toward Naphthalenones. Org Lett 2018; 20:2530-2533. [DOI: 10.1021/acs.orglett.8b00662] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xinxin Fang
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Yuye Zeng
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Qiuyu Li
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Zijun Wu
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Hequan Yao
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Aijun Lin
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
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36
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Zheng J, Breit B. Palladium-Catalyzed Direct C–H Allylation of Electron-Deficient Polyfluoroarenes with Alkynes. Org Lett 2018. [DOI: 10.1021/acs.orglett.8b00393] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Jun Zheng
- Institut für Organische Chemie, Freiburg Institute for Advanced Studies (FRIAS), Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, 79104 Freiburg im Breisgau, Germany
| | - Bernhard Breit
- Institut für Organische Chemie, Freiburg Institute for Advanced Studies (FRIAS), Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, 79104 Freiburg im Breisgau, Germany
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37
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Wu Z, Fang X, Leng Y, Yao H, Lin A. Indium-mediated Palladium-catalyzed Allylic Alkylation of Isatins with Alkynes. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701139] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Zijun Wu
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry; School of Pharmacy, China Pharmaceutical University; Nanjing 210009 People's Republic of China
| | - Xinxin Fang
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry; School of Pharmacy, China Pharmaceutical University; Nanjing 210009 People's Republic of China
| | - Yuning Leng
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry; School of Pharmacy, China Pharmaceutical University; Nanjing 210009 People's Republic of China
| | - Hequan Yao
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry; School of Pharmacy, China Pharmaceutical University; Nanjing 210009 People's Republic of China
| | - Aijun Lin
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry; School of Pharmacy, China Pharmaceutical University; Nanjing 210009 People's Republic of China
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38
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Gao RD, Ding L, Zheng C, Dai LX, You SL. Palladium(0)-Catalyzed Intermolecular Asymmetric Allylic Dearomatization of Polycyclic Indoles. Org Lett 2018; 20:748-751. [PMID: 29368933 DOI: 10.1021/acs.orglett.7b03887] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An intermolecular Pd-catalyzed allylic dearomatization reaction of polycyclic indoles with substituted allylic carbonates was realized in the presence of a newly synthesized chiral phosphoramidite ligand. Various polycyclic indoline and indolenine derivatives were successfully synthesized in excellent yields (up to 99%) with excellent enantioselectivity (up to 98% ee). The obtained products could undergo versatile transformations, increasing the application potential of the method in organic synthesis.
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Affiliation(s)
- Run-Duo Gao
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| | - Lu Ding
- School of Physical Science and Technology, ShanghaiTech University , 100 Haike Road, Shanghai 201210, China
| | - Chao Zheng
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| | - Li-Xin Dai
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China.,School of Physical Science and Technology, ShanghaiTech University , 100 Haike Road, Shanghai 201210, China
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39
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Liu Z, Breit B. Rhodium-Catalyzed Regio- and Enantioselective Addition of N-Hydroxyphthalimide to Allenes: A Strategy To Synthesize Chiral Allylic Alcohols. Org Lett 2017; 20:300-303. [DOI: 10.1021/acs.orglett.7b03709] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Zi Liu
- Institut für Organische Chemie, Albert-Ludwigs-Universität-Freiburg, Albertstrasse 21, 79104 Freiburg im Breisgau, Germany
| | - Bernhard Breit
- Institut für Organische Chemie, Albert-Ludwigs-Universität-Freiburg, Albertstrasse 21, 79104 Freiburg im Breisgau, Germany
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40
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Haydl AM, Breit B, Liang T, Krische MJ. Alkynes as Electrophilic or Nucleophilic Allylmetal Precursors in Transition-Metal Catalysis. Angew Chem Int Ed Engl 2017; 56:11312-11325. [PMID: 28605083 PMCID: PMC5637541 DOI: 10.1002/anie.201704248] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Indexed: 11/06/2022]
Abstract
Diverse late transition metal catalysts convert terminal or internal alkynes into transient allylmetal species that display electrophilic or nucleophilic properties. Whereas classical methods for the generation of allylmetal species often form stoichiometric by-products, the recent use of alkynes as allylmetal precursors enables completely atom-efficient catalytic processes to be carried out, including enantioselective transformations.
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Affiliation(s)
- Alexander M Haydl
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, 79104, Freiburg i. Brsg., Germany
| | - Bernhard Breit
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, 79104, Freiburg i. Brsg., Germany
| | - Tao Liang
- Department of Chemistry, University of Texas at Austin, 105 E 24th St. Welch Hall, A5300, Austin, TX, 78712-1167, USA
| | - Michael J Krische
- Department of Chemistry, University of Texas at Austin, 105 E 24th St. Welch Hall, A5300, Austin, TX, 78712-1167, USA
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41
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42
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Gao S, Liu H, Yang C, Fu Z, Yao H, Lin A. Accessing 1,3-Dienes via Palladium-Catalyzed Allylic Alkylation of Pronucleophiles with Skipped Enynes. Org Lett 2017; 19:4710-4713. [PMID: 28837351 DOI: 10.1021/acs.orglett.7b01960] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An unprecedented palladium-catalyzed allylic alkylation of pronucleophiles with unactivated skipped enynes has been developed. This method provides a straightforward access to a wide array of 1,3-dienes without the need to preinstall leaving groups or employ extra oxidants. The reaction exhibited high atom economy, good functional group tolerance, excellent regioselectivities, and scalability. With D2O as cosolvent, deuterium could be incorporated in high efficiency.
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Affiliation(s)
- Shang Gao
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University , Nanjing 210009, P. R. China
| | - Hao Liu
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University , Nanjing 210009, P. R. China
| | - Chi Yang
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University , Nanjing 210009, P. R. China
| | - Zhiyuan Fu
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University , Nanjing 210009, P. R. China
| | - Hequan Yao
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University , Nanjing 210009, P. R. China
| | - Aijun Lin
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University , Nanjing 210009, P. R. China
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43
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Haydl AM, Breit B, Liang T, Krische MJ. Alkine als alternativer Einstieg in elektrophile und nukleophile Übergangsmetall-katalysierte Allylierungen. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704248] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Alexander M. Haydl
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstraße 21 79104 Freiburg i. Brsg. Deutschland), -frei burg.de
| | - Bernhard Breit
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstraße 21 79104 Freiburg i. Brsg. Deutschland), -frei burg.de
| | - Tao Liang
- Department of Chemistry; University of Texas at Austin; 105 E 24th St. Welch Hall, A5300 Austin TX 78712-1167 USA
| | - Michael J. Krische
- Department of Chemistry; University of Texas at Austin; 105 E 24th St. Welch Hall, A5300 Austin TX 78712-1167 USA
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44
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Cruz FA, Zhu Y, Tercenio QD, Shen Z, Dong VM. Alkyne Hydroheteroarylation: Enantioselective Coupling of Indoles and Alkynes via Rh-Hydride Catalysis. J Am Chem Soc 2017; 139:10641-10644. [PMID: 28742333 PMCID: PMC6824589 DOI: 10.1021/jacs.7b05893] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report an enantioselective coupling between alkynes and indoles. A Rh-hydride catalyst isomerizes alkynes to generate a metal-allyl species that can be trapped with both aromatic and heteroaromatic nucleophiles.
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Affiliation(s)
- Faben A. Cruz
- Department of Chemistry, University of California, Irvine, CA 92697 USA
| | - Yamin Zhu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
- Department of Chemistry, University of California, Irvine, CA 92697 USA
| | | | - Zengming Shen
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Vy M. Dong
- Department of Chemistry, University of California, Irvine, CA 92697 USA
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45
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Lu CJ, Chen DK, Chen H, Wang H, Jin H, Huang X, Gao J. Palladium-catalyzed allylation of tautomerizable heterocycles with alkynes. Org Biomol Chem 2017; 15:5756-5763. [PMID: 28654125 DOI: 10.1039/c7ob01119a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A method for the allylic amidation of tautomerizable heterocycles was developed by a palladium catalyzed allylation reaction with 100% atom economy. A series of structurally diverse N-allylic substituted heterocycles can be synthesized in good yields with high chemo-, regio-, and stereoselectivities under mild conditions.
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Affiliation(s)
- Chuan-Jun Lu
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
| | - Dong-Kai Chen
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
| | - Hong Chen
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
| | - Hong Wang
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
| | - Hongwei Jin
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
| | | | - Jianrong Gao
- College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China.
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46
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Zheng WF, Xu QJ, Kang Q. Rhodium/Lewis Acid Catalyzed Regioselective Addition of 1,3-Dicarbonyl Compounds to Internal Alkynes. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00284] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Wei-Feng Zheng
- Key
Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou 350002, People’s Republic of China
- College
of Materials Science and Engineering, Fujian Normal University, 8 Shangsan Road, Fuzhou 350007 People’s Republic of China
| | - Qiu-Jing Xu
- College
of Materials Science and Engineering, Fujian Normal University, 8 Shangsan Road, Fuzhou 350007 People’s Republic of China
| | - Qiang Kang
- Key
Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou 350002, People’s Republic of China
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47
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Zhang K, Xu X, Zheng J, Yao H, Huang Y, Lin A. [3 + 3] Cycloaddition of in Situ Formed Azaoxyallyl Cations with 2-Alkenylindoles: An Approach to Tetrahydro-β-carbolinones. Org Lett 2017; 19:2596-2599. [DOI: 10.1021/acs.orglett.7b00914] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kaifan Zhang
- State
Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal
Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Xiaoying Xu
- State
Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal
Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Jiuan Zheng
- State
Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal
Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Hequan Yao
- State
Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal
Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Yue Huang
- Department
of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Aijun Lin
- State
Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal
Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
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48
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Fang X, Gao S, Wu Z, Yao H, Lin A. Pd(ii)-Catalyzed oxidative dearomatization of indoles: substrate-controlled synthesis of indolines and indolones. Org Chem Front 2017. [DOI: 10.1039/c6qo00698a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A Pd(ii)-catalyzed oxidative dearomatization of indoles provides a straightforward access to diverse fused indolines and indolones bearing C2-oxygenated quaternary stereocenters.
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Affiliation(s)
- Xinxin Fang
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry
- School of Pharmacy
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Shang Gao
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry
- School of Pharmacy
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Zijun Wu
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry
- School of Pharmacy
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Hequan Yao
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry
- School of Pharmacy
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Aijun Lin
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry
- School of Pharmacy
- China Pharmaceutical University
- Nanjing
- P. R. China
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49
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Yang C, Zhang K, Wu Z, Yao H, Lin A. Cooperative Palladium/Proline-Catalyzed Direct α-Allylic Alkylation of Ketones with Alkynes. Org Lett 2016; 18:5332-5335. [DOI: 10.1021/acs.orglett.6b02649] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chi Yang
- State Key Laboratory of Natural
Medicines (SKLNM) and Department of Medicinal Chemistry, School of
Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Kaifan Zhang
- State Key Laboratory of Natural
Medicines (SKLNM) and Department of Medicinal Chemistry, School of
Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Zijun Wu
- State Key Laboratory of Natural
Medicines (SKLNM) and Department of Medicinal Chemistry, School of
Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Hequan Yao
- State Key Laboratory of Natural
Medicines (SKLNM) and Department of Medicinal Chemistry, School of
Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Aijun Lin
- State Key Laboratory of Natural
Medicines (SKLNM) and Department of Medicinal Chemistry, School of
Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
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50
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Lu CJ, Chen H, Chen DK, Wang H, Yang ZP, Gao J, Jin H. Palladium-catalyzed allylation of sulfonyl hydrazides with alkynes to synthesize allylic arylsulfones. Org Biomol Chem 2016; 14:10833-10839. [DOI: 10.1039/c6ob01929c] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel method for the construction of allyl sulfone derivatives was developed by palladium catalyzed allylation of sulfony hydrazides with alkynes.
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Affiliation(s)
- Chuan-Jun Lu
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Hong Chen
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Dong-Kai Chen
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Hong Wang
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Zhen-Ping Yang
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Jianrong Gao
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Hongwei Jin
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
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