1
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Wang Q, Shao C, Hua R, Yin H, Chen FX. Me 3SiBr-promoted cascade electrophilic thiocyanation/cyclization of ortho-alkynylanilines to synthesize indole derivatives. Org Biomol Chem 2024; 22:4031-4035. [PMID: 38690868 DOI: 10.1039/d4ob00367e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
A Lewis acid-promoted electrophilic thiocyanation/cyclization of ortho-alkynylanilines for the synthesis of indole derivatives has been developed. The reaction utilizes Me3SiBr as the Lewis acid and N-thiocyanatosuccinimide as the thiocyanation reagent. A series of 2-aryl-3-thiocyanato indoles were prepared in moderate to high yields under mild conditions without metals and oxidants. It provides an efficient protocol for the construction of the indole skeleton and C-SCN and C-N bonds in one step as well.
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Affiliation(s)
- Qing Wang
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology (Liangxiang Campus), Beijing 102488, China.
| | - Chukai Shao
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology (Liangxiang Campus), Beijing 102488, China.
| | - Ruirui Hua
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology (Liangxiang Campus), Beijing 102488, China.
| | - Hongquan Yin
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology (Liangxiang Campus), Beijing 102488, China.
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, Beijing Institute of Technology (Liangxiang Campus), Beijing 102488, China
| | - Fu-Xue Chen
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology (Liangxiang Campus), Beijing 102488, China.
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, Beijing Institute of Technology (Liangxiang Campus), Beijing 102488, China
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2
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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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3
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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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4
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Hong SJ, Yoon CJ, Lim HN, Yeom H. Step‐Economical Route to 2‐Amido‐3‐bromobenzo[
b
]thiophenes
via
Ynamide Formation and Selectfluor‐Mediated Oxidative Bromocyclization. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101093] [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)
- Su Jeong Hong
- Eco-Friendly New Materials Research Center, Therapeutics&Biotechnology Division Korea Research Institute of Chemical Technology (KRICT) 141 Gajeong-ro, Yuseong-gu Daejeon 34114 Republic of Korea
- Department of Chemistry Hanyang University 222, Wangsimni-ro, Seongdong-gu Seoul 04763 Republic of Korea
| | - Chang Ju Yoon
- Eco-Friendly New Materials Research Center, Therapeutics&Biotechnology Division Korea Research Institute of Chemical Technology (KRICT) 141 Gajeong-ro, Yuseong-gu Daejeon 34114 Republic of Korea
- Department of Chemistry Sungkyunkwan University 2066, Seobu-ro, Jangan-gu, Suwon-si Gyeonggi-do 16419 Republic of Korea
| | - Hee Nam Lim
- Department of Chemistry and Biochemistry Yeungnam University 280 Daehak-Ro, Gyeongsan Gyeongbuk 38541 Republic of Korea
| | - Hyun‐Suk Yeom
- Eco-Friendly New Materials Research Center, Therapeutics&Biotechnology Division Korea Research Institute of Chemical Technology (KRICT) 141 Gajeong-ro, Yuseong-gu Daejeon 34114 Republic of Korea
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5
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Yu J, Chang X, Ma R, Zhou Q, Wei M, Cao X, Ma X. Water‐Promoted Dehydrative Tsuji–Trost Reaction of Non‐Derivatized Allylic Alcohols with Sulfinic Acids. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001306] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jing Yu
- College of Chemistry and Chemical Engineering Green Catalysis & Synthesis Key Laboratory of Xinyang City Xinyang Normal University 464000 Xinyang Henan China
| | - Xueping Chang
- College of Chemistry and Chemical Engineering Green Catalysis & Synthesis Key Laboratory of Xinyang City Xinyang Normal University 464000 Xinyang Henan China
| | - Ruitian Ma
- College of Chemistry and Chemical Engineering Green Catalysis & Synthesis Key Laboratory of Xinyang City Xinyang Normal University 464000 Xinyang Henan China
| | - Qiuju Zhou
- College of Chemistry and Chemical Engineering Green Catalysis & Synthesis Key Laboratory of Xinyang City Xinyang Normal University 464000 Xinyang Henan China
| | - Mengmeng Wei
- College of Chemistry and Chemical Engineering Green Catalysis & Synthesis Key Laboratory of Xinyang City Xinyang Normal University 464000 Xinyang Henan China
| | - Xinhua Cao
- College of Chemistry and Chemical Engineering Green Catalysis & Synthesis Key Laboratory of Xinyang City Xinyang Normal University 464000 Xinyang Henan China
| | - Xiantao Ma
- College of Chemistry and Chemical Engineering Green Catalysis & Synthesis Key Laboratory of Xinyang City Xinyang Normal University 464000 Xinyang Henan China
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6
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Mizukami A, Tsugita M, Shimora M, Tanaka S, Hayama N, Kimachi T, Inamoto K. Rhodium-catalyzed Synthesis of Benzo[ b]thiophene-3-carboxamides via Cyclization of ( ortho-Alkynyl)phenyl Sulfides in the Presence of Isocyanates. CHEM LETT 2019. [DOI: 10.1246/cl.190043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Akiho Mizukami
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women’s University, 11-68, 9-Bancho, Koshien, Nishinomiya, Hyogo 663-8179, Japan
| | - Maika Tsugita
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women’s University, 11-68, 9-Bancho, Koshien, Nishinomiya, Hyogo 663-8179, Japan
| | - Mako Shimora
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women’s University, 11-68, 9-Bancho, Koshien, Nishinomiya, Hyogo 663-8179, Japan
| | - Saki Tanaka
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women’s University, 11-68, 9-Bancho, Koshien, Nishinomiya, Hyogo 663-8179, Japan
| | - Noboru Hayama
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women’s University, 11-68, 9-Bancho, Koshien, Nishinomiya, Hyogo 663-8179, Japan
| | - Tetsutaro Kimachi
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women’s University, 11-68, 9-Bancho, Koshien, Nishinomiya, Hyogo 663-8179, Japan
| | - Kiyofumi Inamoto
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women’s University, 11-68, 9-Bancho, Koshien, Nishinomiya, Hyogo 663-8179, Japan
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7
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Dehydrative Synthesis of Functionalized Skipped Dienes from Stabilized Phosphonium Ylides and Allylic Alcohols in Water. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801266] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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8
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Watanabe K, Mino T, Ishikawa E, Masuda C, Yoshida Y, Sakamoto M. Hydrazone–Pd-catalyzed direct intermolecular reaction of o-alkynylphenols with allylic acetates. Org Biomol Chem 2018; 16:575-584. [DOI: 10.1039/c7ob02873c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The hydrazone–palladium catalyzed direct intermolecular reaction of o-alkynylphenols with allylic acetates gave the corresponding 2-substituted-3-allylbenzofuran derivatives at room temperature.
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Affiliation(s)
- Kohei Watanabe
- Graduate School of Engineering
- Chiba University
- Chiba 263-8522
- Japan
| | - Takashi Mino
- Graduate School of Engineering
- Chiba University
- Chiba 263-8522
- Japan
- Molecular Chirality Research Center
| | - Eri Ishikawa
- Graduate School of Engineering
- Chiba University
- Chiba 263-8522
- Japan
| | - Chihiro Masuda
- Graduate School of Engineering
- Chiba University
- Chiba 263-8522
- Japan
| | - Yasushi Yoshida
- Graduate School of Engineering
- Chiba University
- Chiba 263-8522
- Japan
- Molecular Chirality Research Center
| | - Masami Sakamoto
- Graduate School of Engineering
- Chiba University
- Chiba 263-8522
- Japan
- Molecular Chirality Research Center
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9
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Yao J, Xie Y, Zhang L, Li Y, Zhou H. Synthesis of benzothiophene and indole derivatives through metal-free propargyl-allene rearrangement and allyl migration. Beilstein J Org Chem 2017; 13:1866-1870. [PMID: 29062405 PMCID: PMC5629416 DOI: 10.3762/bjoc.13.181] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 07/07/2017] [Indexed: 12/18/2022] Open
Abstract
An efficient base-catalyzed protocol for the synthesis of benzothiophene is described. The reaction proceeds via base-promoted propargyl-allenyl rearrangement followed by cyclization and allyl migration. Phosphine-substituted indoles can be synthesized by a similar strategy.
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Affiliation(s)
- Jinzhong Yao
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, P. R. China
| | - Yajie Xie
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, P. R. China
| | - Lianpeng Zhang
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, P. R. China
| | - Yujin Li
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, P. R. China
| | - Hongwei Zhou
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, P. R. China
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10
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Yao T, Liu T, Zhang C. Palladium-catalyzed domino Heck/intermolecular cross-coupling: efficient synthesis of 4-alkylated isoquinoline derivatives. Chem Commun (Camb) 2017; 53:2386-2389. [DOI: 10.1039/c6cc10075a] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The first example of a σ-alkylpalladium(ii) intermediate promoting cyclization of alkynes containing a proximate nucleophilic center is presented.
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Affiliation(s)
- Tuanli Yao
- College of Chemistry and Chemical Engineering
- Shaanxi University of Science and Technology
- Xi'an
- China
| | - Tao Liu
- College of Chemistry and Chemical Engineering
- Shaanxi University of Science and Technology
- Xi'an
- China
| | - Changhui Zhang
- College of Chemistry and Chemical Engineering
- Shaanxi University of Science and Technology
- Xi'an
- China
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11
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Kang K, Kim J, Lee A, Kim WY, Kim H. Palladium-Catalyzed Dehydrative Cross-Coupling of Allylic Alcohols and N-Heterocycles Promoted by a Bicyclic Bridgehead Phosphoramidite Ligand and an Acid Additive. Org Lett 2016; 18:616-9. [DOI: 10.1021/acs.orglett.6b00001] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kyungjun Kang
- Department
of Chemistry, KAIST, Daejeon 34141, Korea
| | - Jaewook Kim
- Department
of Chemistry, KAIST, Daejeon 34141, Korea
| | - Ansoo Lee
- Department
of Chemistry, KAIST, Daejeon 34141, Korea
| | - Woo Youn Kim
- Department
of Chemistry, KAIST, Daejeon 34141, Korea
| | - Hyunwoo Kim
- Department
of Chemistry, KAIST, Daejeon 34141, Korea
- Center
for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Korea
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12
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Wu C, Zhao F, Du Y, Zhao L, Chen L, Wang J, Liu H. Highly selective intramolecular addition of C–N and S–N bonds to alkynes catalyzed by palladium: a practical access to two distinct functional indoles. RSC Adv 2016. [DOI: 10.1039/c6ra15945a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Palladium-catalyzed highly selective intramolecular addition of C–N and S–N bonds to alkynes has been achieved, and two distinct kinds of functional indoles were synthesized rapidly from the same set of substrates in a catalyst-controlled manner.
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Affiliation(s)
- Chenglin Wu
- School of Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- China
- CAS Key Laboratory of Receptor Research
| | - Fei Zhao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- People's Republic of China
| | - Yonglei Du
- CAS Key Laboratory of Receptor Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- P. R. China
| | - Liang Zhao
- CAS Key Laboratory of Receptor Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- P. R. China
| | - Liang Chen
- CAS Key Laboratory of Receptor Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- P. R. China
| | - Jiang Wang
- CAS Key Laboratory of Receptor Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- P. R. China
| | - Hong Liu
- School of Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- China
- CAS Key Laboratory of Receptor Research
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