1
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Watanabe K, Nakano K, Sato H, Yamaoka T, Yoshida Y, Takita R, Kasashima Y, Sakamoto M, Mino T. Synthesis of Branch-Type 3-Allylindoles from N-Alkyl- N-cinnamyl-2-ethynylaniline Derivatives Using π-Allylpalladium Chloride Complex as a Catalyst. J Org Chem 2024. [PMID: 38728550 DOI: 10.1021/acs.joc.4c00771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2024]
Abstract
The reaction of N-alkyl-N-cinnamyl-2-ethynylaniline derivatives 1 via annulation and aza-Claisen-type rearrangement easily afforded corresponding branch-type 3-allylindoles 2 with high regioselectivities in good yields using π-allylpalladium chloride complex as a catalyst.
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Affiliation(s)
- Kohei Watanabe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Keita Nakano
- Graduate School of Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Hayato Sato
- Graduate School of Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Toshiki Yamaoka
- Graduate School of Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Yasushi Yoshida
- Graduate School of Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Molecular Chirality Research Center, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Soft Molecular Activation Research Center, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Ryo Takita
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yoshio Kasashima
- Education Center, Chiba Institute of Technology, Shibazono 2-2-1, Narashino, Chiba 275-0023, Japan
| | - Masami Sakamoto
- Graduate School of Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Takashi Mino
- Graduate School of Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Molecular Chirality Research Center, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Soft Molecular Activation Research Center, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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2
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Mino T, Yamaoka T, Watanabe K, Masuda C, Kasano S, Yoshida Y, Takita R, Kasashima Y, Sakamoto M. Synthesis of 3-Allylindoles via Annulation of N-Allyl-2-ethynylaniline Derivatives Using a P,Olefin Type Ligand/Pd(0) Catalyst. J Org Chem 2022; 87:7365-7377. [DOI: 10.1021/acs.joc.2c00588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Takashi Mino
- Graduate School of Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Molecular Chirality Research Center, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Soft Molecular Activation Research Center, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Toshiki Yamaoka
- Graduate School of Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Kohei Watanabe
- Graduate School of Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Chihiro Masuda
- Graduate School of Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Shohei Kasano
- Graduate School of Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Yasushi Yoshida
- Graduate School of Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Molecular Chirality Research Center, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Soft Molecular Activation Research Center, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Ryo Takita
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yoshio Kasashima
- Education Center, Chiba Institute of Technology, Shibazono 2-2-1, Narashino, Chiba 275-0023, Japan
| | - Masami Sakamoto
- Graduate School of Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Molecular Chirality Research Center, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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3
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Jadhav SD, Singh T, Thakur N, Singh A. Silver Triflate Catalyzed Domino Reactions of
o
‐Alkynylanilines: An Approach Toward Unsymmetrical Diarylacetates and Triarylmethanes. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | | | - Naveen Thakur
- Department of Chemistry IIT Kanpur Kanpur-208016 India
| | - Anand Singh
- Department of Chemistry IIT Kanpur Kanpur-208016 India
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4
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Vavsari VF, Nikbakht A, Balalaie S. Annulation of 2‐Alkynylanilines: The Versatile Chemical Compounds. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100772] [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)
- Vaezeh Fathi Vavsari
- KN Toosi: KN Toosi University of Technology Chemistry IRAN (ISLAMIC REPUBLIC OF)
| | - Ali Nikbakht
- K N Toosi University of Technology Faculty of General Science Chemistry Department of Chemistry, Kavian 9, Dr. Shariati Street 15875-4416 Tehran IRAN (ISLAMIC REPUBLIC OF)
| | - Saeed Balalaie
- K N Toosi University of Technology Faculty of General Science Chemistry Department PO Box 15875-4416 15875-4416 Tehran IRAN (ISLAMIC REPUBLIC OF)
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5
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Liu XW, Li SS, Dai DT, Zhao M, Shan CC, Xu YH, Loh TP. Palladium-Catalyzed Dialkylation of C–C Triple Bonds: Access to Multi-Functionalized Indenes. Org Lett 2019; 21:3696-3700. [DOI: 10.1021/acs.orglett.9b01163] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Xiao-Wei Liu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
| | - Shu-Sen Li
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
| | - Dong-Ting Dai
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
| | - Meng Zhao
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
| | - Cui-Cui Shan
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
| | - Yun-He Xu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
| | - Teck-Peng Loh
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
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6
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Vu MD, Foo CQ, Sadeer A, Shand SS, Li Y, Pullarkat SA. Triflic-Acid-Catalyzed Tandem Allylic Substitution-Cyclization Reaction of Alcohols with Thiophenols-Facile Access to Polysubstituted Thiochromans. ACS OMEGA 2018; 3:8945-8951. [PMID: 31459027 PMCID: PMC6645051 DOI: 10.1021/acsomega.8b01305] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 07/18/2018] [Indexed: 06/10/2023]
Abstract
Hitherto inaccessible multisubstituted thiochroman derivatives were constructed via the one-pot reaction of thiophenols with allylic alcohols catalyzed by 0.2 equiv triflic acid under metal-free conditions. A variety of thiochroman derivatives can be obtained by this straightforward protocol that allows the introduction of up to four substituents at various locations on the thiochroman skeleton. Relative conformations of all isolated products were confirmed by NOESY NMR studies, and a stepwise mechanism, proceeding via an allylic substitution-intramolecular cyclization protocol, is proposed on the basis of NMR experiments.
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Affiliation(s)
- Minh Duy Vu
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Ce Qing Foo
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Abdul Sadeer
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Sam S. Shand
- School
of Chemistry, University of Edinburgh, Joseph Black Building, West Mains
Road, Edinburgh EH9 3JJ, Scotland
| | - Yongxin Li
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Sumod A. Pullarkat
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371, Singapore
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7
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Jillella R, Oh CH. Copper-catalyzed tandem reaction of 2-alkynylanilines with benzoquinones: efficient access to 3-indolylquinones. RSC Adv 2018; 8:22122-22126. [PMID: 35541709 PMCID: PMC9081399 DOI: 10.1039/c8ra03712d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 06/04/2018] [Indexed: 11/21/2022] Open
Abstract
A simple, mild, catalytic and efficient method for the straightforward synthesis of an interesting class of 2-aryl/alkyl-substituted-3-indolyl quinones in good to high yields is reported for the first time. This atom-efficient method proceeds via copper-catalyzed one-pot sequential intramolecular hydroamination (C-N bond formation) of 2-alkynylanilines followed by oxidative C-C coupling with benzoquinones.
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Affiliation(s)
- Raveendra Jillella
- Department of Chemistry and Research Institute of Natural Science, Hanyang University Seoul 04763 South Korea
| | - Chang Ho Oh
- Department of Chemistry and Research Institute of Natural Science, Hanyang University Seoul 04763 South Korea
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8
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Chaisan N, Kaewsri W, Thongsornkleeb C, Tummatorn J, Ruchirawat S. PtCl4-catalyzed cyclization of N-acetyl-2-alkynylanilines: A mild and efficient synthesis of N-acetyl-2-substituted indoles. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.01.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Ganesan B, Senadi GC, Guo BC, Hung MY, Lin WY. A copper(ii)-catalyzed annulative formylation of o-alkynylanilines with DMF: a single-step strategy for 3-formyl indoles. RSC Adv 2018; 8:40968-40973. [PMID: 35557929 PMCID: PMC9092273 DOI: 10.1039/c8ra09214a] [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: 11/07/2018] [Accepted: 11/30/2018] [Indexed: 11/21/2022] Open
Abstract
In this paper, a copper(ii)-catalyzed reaction of o-alkynylanilines with dimethylformamide (DMF) in the presence of oxygen has been developed for synthesizing multisubstituted 3-formyl indole scaffolds.
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Affiliation(s)
- Balaji Ganesan
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 807
- Taiwan
| | - Gopal Chandru Senadi
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 807
- Taiwan
- Department of Chemistry
| | - Bing-Chun Guo
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 807
- Taiwan
| | - Min-Yuan Hung
- Center for Research Resources and Development
- Kaohsiung Medical University
- Kaohsiung 807
- Taiwan
| | - Wei-Yu Lin
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 807
- Taiwan
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10
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Jillella R, Oh DH, Oh CH. Gold-catalyzed tandem reaction of 2-alkynylanilines followed by 1,6-conjugate addition to p-quinone methides: efficient access to unsymmetrical diarylindolylmethanes. NEW J CHEM 2018. [DOI: 10.1039/c8nj03955k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A simple, mild, efficient and chemoselective catalytic method for the straightforward synthesis of an interesting class of 2-aryl/alkyl-substituted-3-diaryl indolyl methanes in high yield is reported.
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Affiliation(s)
- Raveendra Jillella
- Department of Chemistry and Research Institute of Natural Science
- Hanyang University
- Seoul 04763
- South Korea
| | - Dong hwan Oh
- Department of Chemistry and Research Institute of Natural Science
- Hanyang University
- Seoul 04763
- South Korea
| | - Chang Ho Oh
- Department of Chemistry and Research Institute of Natural Science
- Hanyang University
- Seoul 04763
- South Korea
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11
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Dagar A, Guin S, Samanta S. AgSbF6
-Catalyzed Tandem Reaction of 2-Alkynylanilines with Cyclic Enynones: Efficient access to 3-Furo[3,2-c
]chromenylindoles and Related Scaffolds. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700511] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Anuradha Dagar
- Discipline of Chemistry; Indian Institute of Technology Indore; Simrol 453552 Indore India
| | - Soumitra Guin
- Discipline of Chemistry; Indian Institute of Technology Indore; Simrol 453552 Indore India
| | - Sampak Samanta
- Discipline of Chemistry; Indian Institute of Technology Indore; Simrol 453552 Indore India
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12
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Rehan M, Nallagonda R, Das BG, Meena T, Ghorai P. Synthesis of Functionalized Benzo[b]furans via Oxidative Cyclization of o-Cinnamyl Phenols. J Org Chem 2017; 82:3411-3424. [PMID: 28249386 DOI: 10.1021/acs.joc.6b02752] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Disclosed herein is an efficient synthetic route for the synthesis of functionalized 2-benzyl benzo[b]furans via a regioselective 5-exo-trig intramolecular oxidative cyclization of ortho-cinnamyl phenols using [PdCl2(CH3CN)2] as catalyst and benzoquinone as an oxidant. Further, a sequential ortho-cinnamylation of phenols using cinnamyl alcohols catalyzed by Re2O7, followed by an oxidative cyclization using the above Pd catalyst, is performed. The reaction showed broad substrate scope with good to excellent yields.
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Affiliation(s)
- Mohammad Rehan
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Rajender Nallagonda
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Braja Gopal Das
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Tannu Meena
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Prasanta Ghorai
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
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13
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Rajesh M, Puri S, Kant R, Sridhar Reddy M. Synthesis of Substituted Furan/Pyrrole-3-carboxamides through a Tandem Nucleopalladation and Isocyanate Insertion. Org Lett 2016; 18:4332-5. [PMID: 27532221 DOI: 10.1021/acs.orglett.6b02077] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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14
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Thirupathi N, Puri S, Reddy TJ, Sridhar B, Reddy MS. Palladium(II)‐Catalyzed Sequential Aminopalladation and Oxidative Coupling with Acetylenes/Enones: Synthesis of Newly Substituted Quinolines from 2‐Aminophenyl Propargyl Alcohols. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500805] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Nuligonda Thirupathi
- Medicinal & Process Chemistry Division, CSIR‐Central Drug Research Institute, Lucknow, 226031, India
| | - Surendra Puri
- Medicinal & Process Chemistry Division, CSIR‐Central Drug Research Institute, Lucknow, 226031, India
| | | | - Balasubramanian Sridhar
- Dr. B. Sridhar, X‐Ray Crystallography Division, CSIR‐IICT, Tarnaka, Hyderabad, 500007, India
| | - Maddi Sridhar Reddy
- Medicinal & Process Chemistry Division, CSIR‐Central Drug Research Institute, Lucknow, 226031, India
- Academy of Scientific and Innovative Research, New Delhi 110001, India
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15
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Reddy V, Vijaya Anand R. Expedient Access to Unsymmetrical Diarylindolylmethanes through Palladium-Catalyzed Domino Electrophilic Cyclization-Extended Conjugate Addition Approach. Org Lett 2015; 17:3390-3. [PMID: 26158477 DOI: 10.1021/acs.orglett.5b01030] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A palladium-catalyzed domino process to access unsymmetrical diarylindolylmethanes has been developed through the annulation of o-alkynylanilines followed by 1,6-conjugate addition with p-quinone methides (p-QMs) under relatively mild conditions. The broad substrate scope of this methodology was demonstrated through the use of a wide range of substituted o-alkynylanilines and p-quinone methides, and in most cases, the unsymmetrical diarylindolylmethanes could be prepared in moderate to excellent yields. Notably, this method does not require any amino group protection. Moreover, 100% atom economy makes this transformation attractive from a green chemistry perspective.
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Affiliation(s)
- Virsinha Reddy
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO), Punjab 140306, India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO), Punjab 140306, India
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16
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Dhage YD, Shirai T, Arima M, Nakazima A, Hikawa H, Taichi Kusakabe IA, Takahashi K, Kato K. Direct use of allylic alcohols for palladium-catalyzed synthesis of 3-allylbenzo[b]thiophenes, benzofurans and indoles in aqueous media. RSC Adv 2015. [DOI: 10.1039/c5ra05263g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Palladium-catalyzed allylative cyclization of 1, 2 and 3 using simple allylic alcohols in aqueous media afforded 3-allylbenzo[b]thiophenes 4, 3-allylindoles 5 and 3-allylbenzofurans 6 in good yields.
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Affiliation(s)
| | - Tsukasa Shirai
- Faculty of Pharmaceutical Sciences
- Toho University
- Funabashi
- Japan
| | - Miho Arima
- Faculty of Pharmaceutical Sciences
- Toho University
- Funabashi
- Japan
| | - Arisa Nakazima
- Faculty of Pharmaceutical Sciences
- Toho University
- Funabashi
- Japan
| | - Hidemasa Hikawa
- Faculty of Pharmaceutical Sciences
- Toho University
- Funabashi
- Japan
| | | | | | - Keisuke Kato
- Faculty of Pharmaceutical Sciences
- Toho University
- Funabashi
- Japan
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17
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Cai ZJ, Yang C, Wang SY, Ji SJ. Palladium-catalyzed highly regioselective 6-exo-dig cyclization and alkenylation of ortho-ethynylanilides: the synthesis of polyene-substituted benzo[d][1,3]oxazines. Chem Commun (Camb) 2015; 51:14267-70. [DOI: 10.1039/c5cc06510k] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A Pd-catalyzed highly regioselective 6-exo-dig cyclization/alkenylation reaction of ortho-ethynylanilides has been developed.
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Affiliation(s)
- Zhong-Jian Cai
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Chao Yang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Shun-Yi Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
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18
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Liu W, Liu S, Xie H, Qing Z, Zeng J, Cheng P. TBHP mediated oxidation of N-2-alkynylphenyl α-amino carbonyl compounds to oxalic amides using visible light photoredox catalysis and their application in the synthesis of 2-aryl indoles. RSC Adv 2015. [DOI: 10.1039/c4ra17232a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Visible light promoted the oxidation of compounds 1 to amides 2 which were easily transferred to compounds 12.
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Affiliation(s)
- Wei Liu
- Co-Innovation Center of Hunan Province for Utilization of Functional Ingredients from Botanicals
- Hunan Agricultural University
- Changsha
- China
| | - Sheng Liu
- Co-Innovation Center of Hunan Province for Utilization of Functional Ingredients from Botanicals
- Hunan Agricultural University
- Changsha
- China
| | - Hongqi Xie
- Co-Innovation Center of Hunan Province for Utilization of Functional Ingredients from Botanicals
- Hunan Agricultural University
- Changsha
- China
- Pre-State Key Laboratory for Germplasm Innovation and Utilization of Crop
| | - Zhixing Qing
- Co-Innovation Center of Hunan Province for Utilization of Functional Ingredients from Botanicals
- Hunan Agricultural University
- Changsha
- China
| | - Jianguo Zeng
- Co-Innovation Center of Hunan Province for Utilization of Functional Ingredients from Botanicals
- Hunan Agricultural University
- Changsha
- China
- Pre-State Key Laboratory for Germplasm Innovation and Utilization of Crop
| | - Pi Cheng
- Co-Innovation Center of Hunan Province for Utilization of Functional Ingredients from Botanicals
- Hunan Agricultural University
- Changsha
- China
- Pre-State Key Laboratory for Germplasm Innovation and Utilization of Crop
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19
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Wong J, Gan K, Chen HJ, Pullarkat SA. Evaluation of Palladacycles as a Non-Rhodium Based Alternative for the Asymmetric Conjugate 1,4-Addition of Arylboronic Acids to α,β-Unsaturated Enones. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400473] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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20
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Liu B, Gao H, Yu Y, Wu W, Jiang H. Palladium-Catalyzed Intermolecular Aerobic Oxidative Cyclization of 2-Ethynylanilines with Isocyanides: Regioselective Synthesis of 4-Halo-2-aminoquinolines. J Org Chem 2013; 78:10319-28. [DOI: 10.1021/jo401707j] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Bifu Liu
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, PR China
| | - Hanling Gao
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, PR China
| | - Yue Yu
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, PR China
| | - Wanqing Wu
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, PR China
| | - Huanfeng Jiang
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, PR China
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21
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Chen K, Chen HJ, Wong J, Yang J, Pullarkat SA. Copper(II) Triflate Catalyzed Allylic Arylation of Allylic Alcohols: Direct and Selective Access toC-Allylanilines. ChemCatChem 2013. [DOI: 10.1002/cctc.201300408] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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22
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Affiliation(s)
- Rafael Chinchilla
- Departamento de Química Orgánica,
Facultad
de Ciencias, and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apartado 99, 03080 Alicante,
Spain
| | - Carmen Nájera
- Departamento de Química Orgánica,
Facultad
de Ciencias, and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apartado 99, 03080 Alicante,
Spain
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23
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Das D, Roy S. Palladium(II)-Catalyzed Efficient C-3 Functionalization of Indoles with Benzylic and Allylic Alcohols under Co-Catalyst, Acid, Base, Additive and External Ligand-Free Conditions. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300048] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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24
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Chew RJ, Huang Y, Li Y, Pullarkat SA, Leung PH. Enantioselective Addition of Diphenylphosphine to 3-Methyl-4-nitro-5-alkenylisoxazoles. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300164] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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Zhang M, Xie F, Wang X, Yan F, Wang T, Chen M, Ding Y. Improved indole syntheses from anilines and vicinal diols by cooperative catalysis of ruthenium complex and acid. RSC Adv 2013. [DOI: 10.1039/c3ra40458g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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26
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Chen K, Pullarkat SA. A tandem Heck–aza-Michael addition protocol for the one-pot synthesis of isoindolines from unprotected amines. Org Biomol Chem 2012; 10:6600-6. [DOI: 10.1039/c2ob25854d] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Ke Chen
- Division of Chemistry and Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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