1
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Lv W, Yang P, Yuan J, Li J, Liang M, Liu Y, Xing D, Yang L. Phototriggered Fluoroalkylation/Cyclization of Unactivated 1-Acryloyl-2-cyanoindoles: Synthesis of RCOCF 2-Substituted Pyrrolo[1,2- a]indolediones. J Org Chem 2024; 89:3525-3537. [PMID: 38362898 DOI: 10.1021/acs.joc.3c02986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
A photochemical approach toward RCOCF2-substituted pyrrolo[1,2-a]indolediones was developed by the radical cascade difluoroalkylation/cyclization reaction of unactivated 1-acryloyl-2-cyanoindoles with ethyl iododifluoroacetate or iododifluoramides under visible-light irradiation. This transition-metal- and photosensitizer-free protocol afforded diverse difluoroalkylated pyrrolo[1,2-a]indolediones in moderate to good yields under mild reaction conditions. Most appealingly, the reaction can proceed smoothly under sunlight irradiation, which opens a new avenue toward difluoroalkylated pyrrolo[1,2-a]indolediones.
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Affiliation(s)
- Weixian Lv
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Pengyuan Yang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Jinwei Yuan
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Jiayi Li
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Mengran Liang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Yitong Liu
- School of International Education, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Dongliang Xing
- The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Liangru Yang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
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2
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Kale A, Kwon SJ, Lee J, Lee JK, Lee K. Ca(II)-Catalyzed Cascade Reaction of Tryptamines with Propargylic Alcohols: Temperature-Driven Ring Opening and Closing via the Allene Migration Pathway for the Synthesis of Pyrrolo[1,2- a]indoles. Org Lett 2024; 26:1196-1200. [PMID: 38305701 DOI: 10.1021/acs.orglett.3c04357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
A temperature-dependent cascade of reactions between tryptamines and propargylic alcohols was developed to achieve selective formation of pyrroloindoline and pyrrolo[1,2-a]indole heterocycles by Ca(II) catalysis. The cascade consists of electrophilic addition of allene at the C3 carbon of indole followed by intramolecular cyclization at 60 °C to yield pyrroloindolines. Furthermore, simultaneous 1,2-allene migration and pyrrolidine ring opening were followed by intramolecular cyclization via C-N bond formation at reflux temperature to obtain pyrrolo[1,2-a]indole scaffolds. A wide range of substrates, a clean reaction profile, scalability, and good to excellent yields are the advantages of this protocol.
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Affiliation(s)
- Ashok Kale
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Seoul, Goyang 10326, Republic of Korea
| | - Su Jeong Kwon
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Seoul, Goyang 10326, Republic of Korea
| | - Joohan Lee
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Seoul, Goyang 10326, Republic of Korea
| | - Jae Kyun Lee
- Brain Science Institute, KIST, Seoul 02792, Republic of Korea
| | - Kyeong Lee
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Seoul, Goyang 10326, Republic of Korea
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3
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Hao L, Liu X, Yi D, Wang Y, Yu X, Ma Z, Ji Y. The [3 + 2] Cycloaddition Reaction of N-Substituted Pyrrole-2-carboxaldehydes with Arylalkenes under Copper Catalysis: Access to Dihydropyrrolizine Skeletons. Org Lett 2023; 25:9136-9141. [PMID: 38100569 DOI: 10.1021/acs.orglett.3c03558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
Herein, we found that treating N-substituted pyrrole-2-carboxaldehydes with arylalkenes in DMF in N2 at 120 °C could afford pyrrolidine scaffolds with an up to 85% yield. This approach has several remarkable features, such as atom and step economy, readily accessible raw materials, and easy-to-operate manner, providing a simple and efficient method for constructing complicated bicyclic pyrroles. Additionally, we have successfully synthesized 28 target compounds, which further demonstrates its practicality and wide applicability.
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Affiliation(s)
- Liqiang Hao
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Xian Liu
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Dongxu Yi
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Yangyang Wang
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Xiao Yu
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Zhihong Ma
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
- Biotalk Co., LTD, Shanghai 200090, China
| | - Yafei Ji
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
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4
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Liu L, Zhang Y, Zhao W, Li J. Electron Donor-Acceptor Complex Induced Fused Indoles with Hypervalent Iodine(III) Reagents. Org Lett 2023; 25:6251-6255. [PMID: 37607047 DOI: 10.1021/acs.orglett.3c02009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
An operationally simple and efficient method for the cyclization of tertiary amines and hypervalent iodine reagents enabled by an EDA complex has been developed. A series of [1,2-α]indoles derivatives were obtained in good yields, including some key intermediates for the synthesis of biologically active molecules. In addition, this established strategy features a broad substrate scope and good functional group tolerance.
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Affiliation(s)
- Li Liu
- School of Pharmacy, Analysis and Testing Center, NERC Biomass of Changzhou University, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, 213164, China
| | - Yage Zhang
- School of Pharmacy, Analysis and Testing Center, NERC Biomass of Changzhou University, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, 213164, China
| | - Wenyan Zhao
- School of Pharmacy, Analysis and Testing Center, NERC Biomass of Changzhou University, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, 213164, China
| | - Jian Li
- School of Pharmacy, Analysis and Testing Center, NERC Biomass of Changzhou University, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, 213164, China
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5
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Sindhe H, Saiyed N, Kamble A, Mounika Reddy M, Singh A, Sharma S. Catalytic and Chemodivergent Synthesis of 1-Substituted 9 H-Pyrrolo[1,2- a]indoles via Annulation of β-CF 3 Enones with 3-Substituted Indoles. J Org Chem 2023; 88:230-244. [PMID: 36503232 DOI: 10.1021/acs.joc.2c02240] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Chemodivergent reactions are more advantageous in organic synthesis that yield diversely functionalized scaffolds from common starting materials. Herein, we report an efficient metal-free chemodivergent protocol for the synthesis of 1-substituted 9H-pyrrolo[1,2-a]indole derivatives in the presence of catalytic amounts of Lewis acid/Brønsted acid conditions using 3-substituted indoles and β-trifluoromethyl-α,β-unsaturated ketones. Fine-tuning of the catalyst and solvent system in the reaction conditions deliver the trifluoromethyl, trifluoroethylcarboxylate, or carboxylic acid substituents on the C1-position of 9H-pyrrolo[1,2-a]indole derivatives in situ. It is postulated that the solvent and LA/BA catalyst interaction was found to be crucial for the catalytic C-F activation in these transformations.
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Affiliation(s)
- Haritha Sindhe
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research-Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Nehanaz Saiyed
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research-Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Akshay Kamble
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research-Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Malladi Mounika Reddy
- Department of Natural Products, National Institute of Pharmaceutical Education and Research-Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Amardeep Singh
- Department of Natural Products, National Institute of Pharmaceutical Education and Research-Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Satyasheel Sharma
- Department of Natural Products, National Institute of Pharmaceutical Education and Research-Ahmedabad, Gandhinagar, Gujarat 382355, India
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6
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Yadav B, Baire B. Ag(I)-Promoted, Diastereoselective Cyclo-isomerization of N-Alkynyl-7-azaindole-2-carbinols. Selective Synthesis of syn-1,2-Diarylpyrrolo[1,2- a]indol-3-ones and ( Z)-8-Benzylideneoxazolo[3',4'':1,5]pyrrolo[2,3- b]pyridines. Org Lett 2022; 24:5450-5455. [PMID: 35834489 DOI: 10.1021/acs.orglett.2c02179] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The design and development of an Ag(I)-promoted, highly diastereoselective cycloisomerization strategy for the synthesis of syn-1,2-diarylpyrrolo[1,2-a]indol-3-ones from N-alkynyl-indole-2-carbinols is reported. The H218O control experiment and identification of 18O-labeled product suggested the involvement of an external water. The 7-azaindole substrates showned a distinct reactivity to give the (Z)-8-benzylideneoxazolo[3',4':1,5]pyrrolo[2,3-b]pyridines. Key features of this strategy are its 100% atom economy, access to important heterocycles, diverse substrate scope, yields up to 95%, operationally simple procedure, and distinct reactivity of indole vs 7-azaindoles.
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Affiliation(s)
- Bhavna Yadav
- Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Beeraiah Baire
- Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
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7
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Shan Y, Yang Z, Yu JT, Pan C. Metal-free polychloromethyl radical-initiated cyclization of unactivated N-allylindoles towards pyrrolo[1,2- a]indoles. Org Biomol Chem 2022; 20:5259-5263. [PMID: 35735246 DOI: 10.1039/d2ob00471b] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A metal-free polychloromethyl radical-initiated cyclization of unactivated alkenes was developed using CH2Cl2 and CHCl3 as the di- and trichloromethyl radical sources. Variously substituted N-allyl-indoles were successfully transformed into the corresponding C2-(di- and trichloromethyl) pyrrolo[1,2-a]indoles in moderate to good yields. This reaction has a broad substrate scope and good functional group tolerance. Dibromomethylated products can also be obtained using CH2Br2 under standard conditions.
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Affiliation(s)
- Yujia Shan
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou 213164, P. R. China.
| | - Zixian Yang
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou 213164, P. R. China.
| | - Jin-Tao Yu
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou 213164, P. R. China.
| | - Changduo Pan
- School of Chemical and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, P. R. China.
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8
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Huang AX, Zhu HL, Zeng FL, Chen XL, Huang XQ, Qu LB, Yu B. 1-Acryloyl-2-cyanoindole: A Skeleton for Visible-Light-Induced Cascade Annulation. Org Lett 2022; 24:3014-3018. [PMID: 35420829 DOI: 10.1021/acs.orglett.2c00927] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
1-Acryloyl-2-cyanoindoles were found to be novel and efficient skeletons in visible-light-induced persulfate-promoted cascade cyclization reactions. With this transition-metal-free photocatalytic procedure, various sulfonated/thiocyanated pyrrolo[1,2-a]indolediones were synthesized from 1-acryloyl-2-cyanoindoles with sulfonyl hydrazides/NH4SCN at room temperature under mild reaction conditions.
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Affiliation(s)
- An-Xiang Huang
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Hu-Lin Zhu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Fan-Lin Zeng
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Xiao-Lan Chen
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Xian-Qiang Huang
- School of Chemistry & Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, China
| | - Ling-Bo Qu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Bing Yu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
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9
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Yu WQ, Xie J, Chen Z, Xiong BQ, Liu Y, Tang KW. Visible-Light-Induced Transition-Metal-Free Nitrogen-Centered Radical Strategy for the Synthesis of 2-Acylated 9 H-Pyrrolo[1,2- a]indoles. J Org Chem 2021; 86:13720-13733. [PMID: 34523335 DOI: 10.1021/acs.joc.1c01834] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A convenient and efficient visible-light-induced tandem acylation/cyclization of N-propargylindoles with aryl- or alkyl-substituted acyl oxime esters for the synthesis of 2-acyl-substituted 9H-pyrrolo[1,2-a]indoles under transition-metal-free conditions, which proceeds via nitrogen-centered radical-mediated cleavage of the C-C σ-bond in acyl oxime esters, is established. The aryl or alkyl acyl radicals, which come from acyl oxime esters, attack the C-C triple bonds in N-propargylindoles and then go through intramolecular cyclization/isomerization.
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Affiliation(s)
- Wen-Qin Yu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Jun Xie
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Zan Chen
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Bi-Quan Xiong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
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10
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Kumar S, Nunewar S, Usama KM, Kanchupalli V. Rh(III)‐Catalyzed [3+2] Annulation and C−H Alkenylation of Indoles with 1,3‐Diynes by C−H Activation. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100212] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sanjeev Kumar
- Department of Chemical Sciences National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500 037 Telangana India
| | - Saiprasad Nunewar
- Department of Chemical Sciences National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500 037 Telangana India
| | - Khan Mohammad Usama
- Department of Chemical Sciences National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500 037 Telangana India
| | - Vinaykumar Kanchupalli
- Department of Chemical Sciences National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500 037 Telangana India
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11
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Ortega A, Uria U, Tejero T, Prieto L, Reyes E, Merino P, Vicario JL. Brønsted Acid Catalyzed (4 + 2) Cyclocondensation of 3-Substituted Indoles with Donor–Acceptor Cyclopropanes. Org Lett 2021; 23:2326-2331. [PMID: 33689377 PMCID: PMC9490874 DOI: 10.1021/acs.orglett.1c00470] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
![]()
Acylcyclopropanes
are employed as useful donor–acceptor
cyclopropanes that undergo formal (4 + 2) cyclocondensation with N-unprotected 3-substituted indoles in the presence of a
Brønsted acid catalyst. The reaction involves the simultaneous
alkylation of both the N and C-2 positions of the indole and provides
access to the 8,9-dihydropyrido[1,2-a]indole scaffold that is the central core of several biologically
relevant indole alkaloids in excellent yields and good selectivities.
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Affiliation(s)
- Alesandere Ortega
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU). P.O.
Box 644, 48080 Bilbao, Spain
| | - Uxue Uria
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU). P.O.
Box 644, 48080 Bilbao, Spain
| | - Tomás Tejero
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| | - Liher Prieto
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU). P.O.
Box 644, 48080 Bilbao, Spain
| | - Efraim Reyes
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU). P.O.
Box 644, 48080 Bilbao, Spain
| | - Pedro Merino
- Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Jose L. Vicario
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU). P.O.
Box 644, 48080 Bilbao, Spain
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12
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Ojha B, Laxman K, Ravikanth M. Synthesis of 3
H
‐Pyrrolo‐(1,2‐
a
) Indole‐based Fluorophore Macrocycles and their Stable Cation Radicals. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100068] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Belarani Ojha
- Department of Chemistry Indian Institute of Technology Bombay Powai, Mumbai 400076 India
| | - Kandala Laxman
- Department of Chemistry Indian Institute of Technology Bombay Powai, Mumbai 400076 India
- IITB-Monash Research Academy IIT Bombay Powai, Mumbai 400076 India
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13
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Göricke F, Schneider C. Palladium-Catalyzed, Enantioselective (3 + 2)-Cycloannulation of β-Keto Esters with Alkylidene 2H-Indoles toward Complex Indole-Based Heterocycles. Org Lett 2020; 22:6101-6106. [DOI: 10.1021/acs.orglett.0c02166] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Fabian Göricke
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany
| | - Christoph Schneider
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany
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14
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Liu Y, Chen Z, Wang QL, Chen P, Xie J, Xiong BQ, Zhang PL, Tang KW. Visible Light-Catalyzed Cascade Radical Cyclization of N-Propargylindoles with Acyl Chlorides for the Synthesis of 2-Acyl-9H-pyrrolo[1,2-a]indoles. J Org Chem 2020; 85:2385-2394. [DOI: 10.1021/acs.joc.9b03090] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Zan Chen
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Qiao-Lin Wang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Pu Chen
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Jun Xie
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Bi-Quan Xiong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Pan-Liang Zhang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
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15
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Gao Y, Li J, Bai S, Tu D, Yang C, Ye Z, Hu B, Qi X, Jiang C. Direct synthesis of annulated indoles through palladium-catalyzed double alkylations. Org Chem Front 2020. [DOI: 10.1039/d0qo00135j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A facile, one-step synthesis of annulated indoles from (N–H) indoles and dibromoalkanes was developed through a palladium-catalyzed double alkylation process.
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Affiliation(s)
- Yadong Gao
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
- National Institute of Biological Sciences
| | - Jianhua Li
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
| | - Songlin Bai
- National Institute of Biological Sciences
- Beijing 102206
- P. R. China
| | - Daoquan Tu
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
| | - Chao Yang
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
- National Institute of Biological Sciences
| | - Zhiwen Ye
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
| | - Bingcheng Hu
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
| | - Xiangbing Qi
- National Institute of Biological Sciences
- Beijing 102206
- P. R. China
- Tsinghua Institute of Multidisciplinary Biomedical Research
- Tsinghua University
| | - Chao Jiang
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
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16
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Zhang D, Yin L, Zhong J, Cheng Q, Cai H, Chen Y, Zhang QF. Ring-opening reactions of donor–acceptor cyclopropanes with cyclic ketals and thiol ketals. Org Biomol Chem 2020; 18:6492-6496. [DOI: 10.1039/d0ob01530j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Cyclic (thiol) ketals were used as hetero-nucleophiles for the ring opening of donor–acceptor cyclopropanes to afford functionalized diethers.
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Affiliation(s)
- Dongxin Zhang
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Lei Yin
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Junchao Zhong
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Qihang Cheng
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Hu Cai
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Yan Chen
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Qian-Feng Zhang
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
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17
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Gorre R, Enagandhula D, Balasubramanian S, Akondi SM. Visible-light-driven metal-free aerobic synthesis of highly diastereoselective phosphinoylpyrroloindoles. Org Biomol Chem 2020; 18:1354-1358. [DOI: 10.1039/c9ob02730k] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A tandem C–P and C–C bond formation promoted by visible light at room temperature in a highly diastereoselective manner is described.
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Affiliation(s)
- Ramesh Gorre
- Department of Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology (CSIR-IICT)
- Hyderabad 500007
- India
- Academy of scientific and innovative research (AcSIR)
| | - Damodar Enagandhula
- Department of Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology (CSIR-IICT)
- Hyderabad 500007
- India
| | - Sridhar Balasubramanian
- Academy of scientific and innovative research (AcSIR)
- Ghaziabad 201002
- India
- Department of Analytical Chemistry
- CSIR-IICT
| | - Srirama Murthy Akondi
- Department of Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology (CSIR-IICT)
- Hyderabad 500007
- India
- Academy of scientific and innovative research (AcSIR)
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18
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Lorton C, Voituriez A. Synthesis and Applications of 9H
-Pyrrolo[1,2-a
]indole and 9H
-Pyrrolo[1,2-a
]indol-9-one Derivatives. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900626] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Charlotte Lorton
- Institut de Chimie des Substances Naturelles; CNRS UPR 2301; Université Paris-Sud, Université Paris-Saclay; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
| | - Arnaud Voituriez
- Institut de Chimie des Substances Naturelles; CNRS UPR 2301; Université Paris-Sud, Université Paris-Saclay; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
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19
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Mizufune H. Efficient Azacycle Formations Developed in Japanese Pharmaceutical Industries: Elegancy, Logistics, and Training (ELT) “Sandwich” for Process Chemists. Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.8b00412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Hideya Mizufune
- Chemical R&D Division, SPERA PHARMA, Inc., 17-85 Jusohonmachi 2-chome, Yodogawa-ku, Osaka 532-0024, Japan
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20
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Zhang P, Shi S, Gao X, Han S, Lin J, Zhao Y. Photoredox-catalyzed cascade annulation of N-propargylindoles with sulfonyl chlorides: access to 2-sulfonated 9H-pyrrolo[1,2-a]indoles. Org Biomol Chem 2019; 17:2873-2876. [DOI: 10.1039/c9ob00218a] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A photoredox-catalyzed cascade radical reaction of N-propargylindoles and sulfonyl chlorides to 2-sulfonated 9H-pyrrolo[1,2-a]indoles under external oxidant-free conditions was developed.
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Affiliation(s)
- Pengbo Zhang
- School of Public Health
- Xinxiang Medical University
- Xinxiang 453003
- China
| | - Shanshan Shi
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
- China
| | - Xia Gao
- School of Public Health
- Xinxiang Medical University
- Xinxiang 453003
- China
| | - Shuang Han
- School of Public Health
- Xinxiang Medical University
- Xinxiang 453003
- China
| | - Jinming Lin
- School of Public Health
- Xinxiang Medical University
- Xinxiang 453003
- China
| | - Yufen Zhao
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
- China
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21
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Karmakar R, Mukhopadhyay C. Regio‐ and Stereoselective Multicomponent Synthesis of Novel Chromeno‐Annulated Pyrrolizine and Thiazolizine Scaffolds via 1,3‐Dipolar Cycloaddition Reactions. ChemistrySelect 2018. [DOI: 10.1002/slct.201801533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Rajiv Karmakar
- Department of ChemistryUniversity of Calcutta 92 APC Road Kolkata-700009 India
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22
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Novikov RA, Borisov DD, Zotova MA, Denisov DA, Tkachev YV, Korolev VA, Shulishov EV, Tomilov YV. Cascade Cleavage of Three-Membered Rings in the Reaction of D-A Cyclopropanes with 4,5-Diazaspiro[2.4]hept-4-enes: A Route to Highly Functionalized Pyrazolines. J Org Chem 2018; 83:7836-7851. [PMID: 29873492 DOI: 10.1021/acs.joc.8b00725] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new cascade process for reactions of donor-acceptor cyclopropanes (DACs) with spiro[cyclopropanepyrazolines] in the presence of EtAlCl2 or Ga halides is reported. The action of a Lewis acid results in DAC activation and addition of the carbocationic intermediate to the azocyclopropane system of the pyrazoline with opening of the second three-membered ring and addition of a halide anion from the Lewis acid. A specific feature of this process is that one activated cyclopropane ring activates another one, and depending on the component ratio, the process can involve two DAC molecules and one pyrazoline molecule or one DAC molecule and two pyrazoline molecules. The process is tolerant to various functional groups and occurs with a wide range of substrates to give polyfunctionalized structures based on a 2-pyrazoline moiety.
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Affiliation(s)
- Roman A Novikov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences , 47 Leninsky prosp. , 119991 Moscow , Russian Federation.,Engelhardt Institute of Molecular Biology, Russian Academy of Sciences , 32 Vavilov st. , 119991 Moscow , Russian Federation
| | - Denis D Borisov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences , 47 Leninsky prosp. , 119991 Moscow , Russian Federation
| | - Maria A Zotova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences , 47 Leninsky prosp. , 119991 Moscow , Russian Federation
| | - Dmitry A Denisov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences , 47 Leninsky prosp. , 119991 Moscow , Russian Federation
| | - Yaroslav V Tkachev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences , 32 Vavilov st. , 119991 Moscow , Russian Federation
| | - Victor A Korolev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences , 47 Leninsky prosp. , 119991 Moscow , Russian Federation
| | - Evgeny V Shulishov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences , 47 Leninsky prosp. , 119991 Moscow , Russian Federation
| | - Yury V Tomilov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences , 47 Leninsky prosp. , 119991 Moscow , Russian Federation
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23
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Kavina MA, Sizov VV, Yakovlev IP. Fused Imidazoles: I. Synthesis of 6,7-Dihydro-5H-pyrrolo[1,2-a]imidazole Derivatives. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2018. [DOI: 10.1134/s107042801806012x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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24
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Lorton C, Voituriez A. Phosphine-Promoted Synthesis of 9H-Pyrrolo[1,2-a]indole Derivatives via an γ-Umpolung Addition/Intramolecular Wittig Reaction. J Org Chem 2018; 83:5801-5806. [DOI: 10.1021/acs.joc.8b00457] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Charlotte Lorton
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, 1 av. de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Arnaud Voituriez
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, 1 av. de la Terrasse, 91198 Gif-sur-Yvette, France
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25
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Miloserdov FM, Kirillova MS, Muratore ME, Echavarren AM. Unified Total Synthesis of Pyrroloazocine Indole Alkaloids Sheds Light on Their Biosynthetic Relationship. J Am Chem Soc 2018; 140:5393-5400. [PMID: 29432680 PMCID: PMC5920919 DOI: 10.1021/jacs.7b13484] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The total synthesis of seven members of the lapidilectine and grandilodine family of alkaloids has been accomplished in racemic and enantiopure form without protection/deprotection of functional groups. The two key steps, an 8- endo-dig hydroarylation and a 6- exo-trig photoredox cyclization, were catalyzed using gold. A rationale for the formation of the cyclopropane ring of the lundurines is also provided.
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Affiliation(s)
- Fedor M Miloserdov
- Institute of Chemical Research of Catalonia (ICIQ) , Barcelona Institute of Science and Technology , Av. Països Catalans 16 , 43007 Tarragona , Spain
| | - Mariia S Kirillova
- Institute of Chemical Research of Catalonia (ICIQ) , Barcelona Institute of Science and Technology , Av. Països Catalans 16 , 43007 Tarragona , Spain
| | - Michael E Muratore
- Institute of Chemical Research of Catalonia (ICIQ) , Barcelona Institute of Science and Technology , Av. Països Catalans 16 , 43007 Tarragona , Spain
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ) , Barcelona Institute of Science and Technology , Av. Països Catalans 16 , 43007 Tarragona , Spain.,Departament de Química Orgànica i Analítica , Universitat Rovira i Virgili , C/Marcel·lí Domingo s/n , 43007 Tarragona , Spain
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26
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Jiang KM, Zhang JQ, Jin Y, Lin J. 1,3-Dipolar Cycloaddition of Imidazole Derivatives with Nitrile Oxide: Synthesis of Imidazo[1,2,4]oxadiazole Derivatives. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700347] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kun-Ming Jiang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University); Ministry of Education, School of Chemical Science and Technology; Yunnan University; Kunming 650091 P. R. China
| | - Jian-Qiang Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University); Ministry of Education, School of Chemical Science and Technology; Yunnan University; Kunming 650091 P. R. China
- Department of Biology and Chemistry; Puer College; Puer 665000 Yunnan China
| | - Yi Jin
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University); Ministry of Education, School of Chemical Science and Technology; Yunnan University; Kunming 650091 P. R. China
| | - Jun Lin
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University); Ministry of Education, School of Chemical Science and Technology; Yunnan University; Kunming 650091 P. R. China
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27
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Chakrabarty I, Inamdar SM, Akram MO, Gade AB, Banerjee S, Bera S, Patil NT. [3+2]-Annulation of platinum-bound azomethine ylides with distal C[double bond, length as m-dash]C bonds of N-allenamides. Chem Commun (Camb) 2017; 53:196-199. [PMID: 27917422 DOI: 10.1039/c6cc07874e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A Pt-catalyzed, highly regioselective reaction between N-allenamides and imino-alkynes leading to pyrrolo[1,2-a]indoles is described. This represents the first example of [3+2]-annulation of Pt-bound azomethine ylides with the distal C[double bond, length as m-dash]C bond of N-allenamides. The mechanism of the reaction was established by computational studies.
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Affiliation(s)
- Indradweep Chakrabarty
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune - 411008, India. and Academy of Scientific and Innovative Research (AcSIR), New Delhi - 110025, India
| | - Suleman M Inamdar
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune - 411008, India.
| | - Manjur O Akram
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune - 411008, India. and Academy of Scientific and Innovative Research (AcSIR), New Delhi - 110025, India
| | - Amol B Gade
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune - 411008, India. and Academy of Scientific and Innovative Research (AcSIR), New Delhi - 110025, India
| | - Subhrashis Banerjee
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune - 411008, India
| | - Saibal Bera
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune - 411008, India
| | - Nitin T Patil
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune - 411008, India. and Academy of Scientific and Innovative Research (AcSIR), New Delhi - 110025, India
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28
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Zhu YS, Yuan BB, Guo JM, Jin SJ, Dong HH, Wang QL, Bu ZW. A Copper-Catalyzed Friedel–Crafts Alkylation/Cyclization Sequence: an Approach to Functionalized Pyrrolo[1,2-a]indole Spirooxindoles and 9H-Pyrrolo[1,2-a]indoles. J Org Chem 2017; 82:5669-5677. [DOI: 10.1021/acs.joc.7b00488] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Yan-Shuo Zhu
- Institute of Fine
Chemistry
and Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Bei-Bei Yuan
- Institute of Fine
Chemistry
and Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Jiao-Mei Guo
- Institute of Fine
Chemistry
and Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Shao-Jing Jin
- Institute of Fine
Chemistry
and Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Hua-Hui Dong
- Institute of Fine
Chemistry
and Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Qi-Lin Wang
- Institute of Fine
Chemistry
and Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Zhan-Wei Bu
- Institute of Fine
Chemistry
and Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
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29
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Zhang H, Li W, Zhu C. Copper-Catalyzed Cascade Phosphorylation Initiated Radical Cyclization: Access to 2-Phosphorylated Pyrrolo[1,2-a]indole. J Org Chem 2017; 82:2199-2204. [DOI: 10.1021/acs.joc.6b02673] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Honglin Zhang
- State
Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of
Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Weipeng Li
- State
Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of
Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Chengjian Zhu
- State
Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of
Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, P. R. China
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30
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Zhu J, Sun S, Xia M, Gu N, Cheng J. Copper-catalyzed radical 1,2-cyclization of indoles with arylsulfonyl hydrazides: access to 2-thiolated 3H-pyrrolo[1,2-a]indoles. Org Chem Front 2017. [DOI: 10.1039/c7qo00478h] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A copper-catalyzed cascade radical 1,2-cyclization of indoles with arylsulfonyl hydrazides was developed, affording a series of 2-thiolated 3H-pyrrolo[1,2-a]indoles in moderate to excellent yields.
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Affiliation(s)
- Jiawei Zhu
- School of Petrochemical Engineering
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- and Institute for Natural and Synthetic Organic Chemistry
- Changzhou University
- Changzhou 213164
| | - Song Sun
- School of Petrochemical Engineering
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- and Institute for Natural and Synthetic Organic Chemistry
- Changzhou University
- Changzhou 213164
| | - Minfang Xia
- School of Petrochemical Engineering
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- and Institute for Natural and Synthetic Organic Chemistry
- Changzhou University
- Changzhou 213164
| | - Ning Gu
- School of Petrochemical Engineering
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- and Institute for Natural and Synthetic Organic Chemistry
- Changzhou University
- Changzhou 213164
| | - Jiang Cheng
- School of Petrochemical Engineering
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- and Institute for Natural and Synthetic Organic Chemistry
- Changzhou University
- Changzhou 213164
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31
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Zhang P, Gao Y, Chen S, Tang G, Zhao Y. Direct synthesis of 2-sulfonated 9H-pyrrolo[1,2-a]indoles via NaI-catalyzed cascade radical addition/cyclization/isomerization. Org Chem Front 2017. [DOI: 10.1039/c7qo00167c] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
An efficient approach for the synthesis of 2-sulfonated 9H-pyrrolo[1,2-a]indoles via a NaI-catalyzed sulfonyl-radical-involved cascade cyclization–isomerization process is described.
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Affiliation(s)
- Pengbo Zhang
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- and the Key Laboratory for Chemical Biology of Fujian Province
- Xiamen University
- Xiamen
| | - Yuzhen Gao
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- and the Key Laboratory for Chemical Biology of Fujian Province
- Xiamen University
- Xiamen
| | - Su Chen
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- and the Key Laboratory for Chemical Biology of Fujian Province
- Xiamen University
- Xiamen
| | - Guo Tang
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- and the Key Laboratory for Chemical Biology of Fujian Province
- Xiamen University
- Xiamen
| | - Yufen Zhao
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- and the Key Laboratory for Chemical Biology of Fujian Province
- Xiamen University
- Xiamen
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32
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Kaicharla T, Roy T, Thangaraj M, Gonnade RG, Biju AT. Lewis Acid Catalyzed Selective Reactions of Donor-Acceptor Cyclopropanes with 2-Naphthols. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604373] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Trinadh Kaicharla
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| | - Tony Roy
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| | - Manikandan Thangaraj
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| | - Rajesh G. Gonnade
- Centre for Materials Characterization; CSIR-National Chemical Laboratory; Pune- 411008 India
| | - Akkattu T. Biju
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
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33
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Kaicharla T, Roy T, Thangaraj M, Gonnade RG, Biju AT. Lewis Acid Catalyzed Selective Reactions of Donor-Acceptor Cyclopropanes with 2-Naphthols. Angew Chem Int Ed Engl 2016; 55:10061-4. [DOI: 10.1002/anie.201604373] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Indexed: 12/21/2022]
Affiliation(s)
- Trinadh Kaicharla
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| | - Tony Roy
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| | - Manikandan Thangaraj
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| | - Rajesh G. Gonnade
- Centre for Materials Characterization; CSIR-National Chemical Laboratory; Pune- 411008 India
| | - Akkattu T. Biju
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
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34
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Saleh N, Voituriez A. Synthesis of 9H-Pyrrolo[1,2-a]indole and 3H-Pyrrolizine Derivatives via a Phosphine-Catalyzed Umpolung Addition/Intramolecular Wittig Reaction. J Org Chem 2016; 81:4371-7. [DOI: 10.1021/acs.joc.6b00473] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nidal Saleh
- Institut de Chimie des Substances
Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, 1 av. de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Arnaud Voituriez
- Institut de Chimie des Substances
Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, 1 av. de la Terrasse, 91198 Gif-sur-Yvette, France
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35
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Chu XQ, Xing ZH, Meng H, Xu XP, Ji SJ. Copper-mediated radical alkylarylation of unactivated alkenes with acetonitrile leading to fluorenes and pyrroloindoles. Org Chem Front 2016. [DOI: 10.1039/c5qo00329f] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A Cu-mediated/catalyzed selective oxidative dual C–H bond cleavage of an arene and alkylnitrile or acetone is reported. This method provides an alternative method for designing new pharmaceutical frameworks and photoelectronic devices.
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Affiliation(s)
- Xue-Qiang Chu
- 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
| | - Zhen-Hua Xing
- 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
| | - Hua Meng
- 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
| | - Xiao-Ping Xu
- 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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36
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Calvert MB, Sperry J. Synthetic studies towards putative yuremamine using an iterative C(sp3)–H arylation strategy. Org Biomol Chem 2016; 14:5728-43. [DOI: 10.1039/c6ob00110f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An overview of synthetic efforts toward the initially proposed structure of yuremamine using iterative C(sp3)–H arylations is described.
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Affiliation(s)
| | - Jonathan Sperry
- School of Chemical Sciences
- University of Auckland
- Auckland
- New Zealand
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37
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Ohyama T, Uchida M, Kusama H, Iwasawa N. Total Synthesis of Proposed Structure of Yuremamine and All Diastereomers Using [3+2]-Cycloaddition of Platinum-Containing Azomethine Ylide. Chem Asian J 2015; 10:1850-3. [DOI: 10.1002/asia.201500491] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Tomoya Ohyama
- Department of Chemistry; Tokyo Institute of Technology; 2-12-1, O-okayama, Meguro-ku Tokyo 152-8551 Japan
| | - Masako Uchida
- Department of Chemistry; Tokyo Institute of Technology; 2-12-1, O-okayama, Meguro-ku Tokyo 152-8551 Japan
| | - Hiroyuki Kusama
- Department of Chemistry, Faculty of Science; Gakushuin University; 1-5-1 Mejiro, Toshima-ku Tokyo 171-8588 Japan
| | - Nobuharu Iwasawa
- Department of Chemistry; Tokyo Institute of Technology; 2-12-1, O-okayama, Meguro-ku Tokyo 152-8551 Japan
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38
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Monakhova N, Ryabova S, Makarov V. Synthesis and Some Biological Properties of Pyrrolo[1,2-a]indoles. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2312] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Natalia Monakhova
- Bach Institute of Biochemistry; Russian Academy of Science; 119071 Moscow Russia
| | - Svetlana Ryabova
- Bach Institute of Biochemistry; Russian Academy of Science; 119071 Moscow Russia
| | - Vadim Makarov
- Bach Institute of Biochemistry; Russian Academy of Science; 119071 Moscow Russia
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39
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Huang H, Ji X, Xiao F, Deng GJ. Copper(i)/Lewis acid triggered ring-opening coupling reaction of cyclopropenes with nitriles. RSC Adv 2015. [DOI: 10.1039/c5ra01541c] [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
A ring-opening coupling reaction of D–A cyclopropenes and nitriles is described for the facile synthesis of γ-amino ketones.
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Affiliation(s)
- Huawen Huang
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
| | - Xiaochen Ji
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
| | - Fuhong Xiao
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
| | - Guo-Jun Deng
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
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40
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Schneider TF, Kaschel J, Werz DB. A New Golden Age for Donor-Acceptor Cyclopropanes. Angew Chem Int Ed Engl 2014; 53:5504-23. [DOI: 10.1002/anie.201309886] [Citation(s) in RCA: 789] [Impact Index Per Article: 78.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Indexed: 12/22/2022]
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41
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Ein neues goldenes Zeitalter in der Chemie Donor-Akzeptor-substituierter Cyclopropane. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201309886] [Citation(s) in RCA: 259] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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42
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Infante R, Nieto J, Andrés C. Tandem diastereo- and enantioselective preparation of aryl and alkyl cyclopropyl carbinols with three adjacent stereocenters using perhydrobenzoxazines and diethylzinc. Org Biomol Chem 2014; 12:345-54. [DOI: 10.1039/c3ob41797b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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43
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44
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45
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Cheng HG, Lu LQ, Wang T, Yang QQ, Liu XP, Li Y, Deng QH, Chen JR, Xiao WJ. Highly Enantioselective Friedel-Crafts Alkylation/N-Hemiacetalization Cascade Reaction with Indoles. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201209998] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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46
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Cheng HG, Lu LQ, Wang T, Yang QQ, Liu XP, Li Y, Deng QH, Chen JR, Xiao WJ. Highly Enantioselective Friedel-Crafts Alkylation/N-Hemiacetalization Cascade Reaction with Indoles. Angew Chem Int Ed Engl 2013; 52:3250-4. [DOI: 10.1002/anie.201209998] [Citation(s) in RCA: 146] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Indexed: 11/05/2022]
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47
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Mondal M, Bora U. Recent advances in manganese(iii) acetate mediated organic synthesis. RSC Adv 2013. [DOI: 10.1039/c3ra42480d] [Citation(s) in RCA: 122] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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48
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Huang H, Ji X, Wu W, Jiang H. A cascade approach to fused indolizinones through Lewis acid–copper(i) relay catalysis. Chem Commun (Camb) 2013; 49:3351-3. [DOI: 10.1039/c3cc40643a] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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49
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Zhou YY, Li J, Ling L, Liao SH, Sun XL, Li YX, Wang LJ, Tang Y. Highly Enantioselective [3+3] Cycloaddition of Aromatic Azomethine Imines with Cyclopropanes Directed by π-π Stacking Interactions. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201207576] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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50
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Zhou YY, Li J, Ling L, Liao SH, Sun XL, Li YX, Wang LJ, Tang Y. Highly Enantioselective [3+3] Cycloaddition of Aromatic Azomethine Imines with Cyclopropanes Directed by π-π Stacking Interactions. Angew Chem Int Ed Engl 2012; 52:1452-6. [DOI: 10.1002/anie.201207576] [Citation(s) in RCA: 161] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Indexed: 11/09/2022]
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