1
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Lei T, Appleson T, Breder A. Intermolecular Aza-Wacker Coupling of Alkenes with Azoles by Photo-Aerobic Selenium-π-Acid Multicatalysis. ACS Catal 2024; 14:9586-9593. [PMID: 38933469 PMCID: PMC11197018 DOI: 10.1021/acscatal.4c01327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 05/24/2024] [Accepted: 05/24/2024] [Indexed: 06/28/2024]
Abstract
Herein, the intermolecular, photoaerobic aza-Wacker coupling of azoles with alkenes by means of dual and ternary selenium-π-acid multicatalysis is presented. The title method permits an expedited avenue toward a broad scope of N-allylated azoles and representative azinones under mild conditions with broad functional group tolerance, as is showcased in more than 60 examples including late-stage drug derivatizations. From a regiochemical perspective, the protocol is complementary to cognate photoredox catalytic olefin aminations, as they typically proceed through either allylic hydrogen atom abstraction or single electron oxidation of the alkene substrate. These methods predominantly result in C-N bond formations at the allylic periphery of the alkene or the less substituted position of the former π-bond (i.e., anti-Markovnikov selectivity). The current process, however, operates through a radical-polar crossover mechanism, which solely affects the selenium catalyst, thus allowing the alkene to be converted strictly through an ionic two-electron transfer regime under Markovnikov control. In addition, it is shown that the corresponding N-vinyl azoles can also be accessed by sequential or one-pot treatment of the allylic azoles with base, thus emphasizing the exquisite utility of this method.
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Affiliation(s)
| | | | - Alexander Breder
- Institut für Organische
Chemie, Universität Regensburg, Universitätstrasse 31, 93053 Regensburg, Germany
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2
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Liu TL, Jhou ML, Hsieh CE, Lin CJ, Su HH, Chou CM. Palladium-Catalyzed Intramolecular Allylic Amidation via Decarboxylative Aromatization: Synthesis of N-Allyl- N-aryl Sulfonamides. J Org Chem 2021; 86:9084-9095. [PMID: 34115505 DOI: 10.1021/acs.joc.1c01065] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A protocol in the preparation of functionalized N-allyl-N-aryl sulfonamides via palladium-catalyzed intramolecular decarboxylative N-allylation reaction is presented. The alkylated 2,5-cyclohexadienyl ketoesters reacted with arylsulfonamides in the presence of titanium tetrachloride and pyridine, which allows the formation of alkylated 2,5-cyclohexadienyl sulfonyl iminoesters which then undergo a palladium-catalyzed intramolecular allylic amidation through decarboxylative aromatization to provide functionalized N-allyl-N-aryl sulfonamides. This allylation protocol proceeds with good regioselectivity. Moreover, we have also shown that N-allyl-N-aryl sulfonamide can be transformed into 4-aryl-1,2,3,4-tetrahydroquinoline and nitrogen-containing β-hydroxysulfide bioactives.
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Affiliation(s)
- Tzu-Lun Liu
- Department of Applied Chemistry, National University of Kaohsiung, 700, Kaohsiung University Road, Nanzih District, 81148 Kaohsiung, Taiwan
| | - Meng-Li Jhou
- Department of Applied Chemistry, National University of Kaohsiung, 700, Kaohsiung University Road, Nanzih District, 81148 Kaohsiung, Taiwan
| | - Cheng-En Hsieh
- Department of Applied Chemistry, National University of Kaohsiung, 700, Kaohsiung University Road, Nanzih District, 81148 Kaohsiung, Taiwan
| | - Chia-Jung Lin
- Department of Applied Chemistry, National University of Kaohsiung, 700, Kaohsiung University Road, Nanzih District, 81148 Kaohsiung, Taiwan
| | - Hsiu-Hui Su
- Department of Applied Chemistry, National University of Kaohsiung, 700, Kaohsiung University Road, Nanzih District, 81148 Kaohsiung, Taiwan
| | - Chih-Ming Chou
- Department of Applied Chemistry, National University of Kaohsiung, 700, Kaohsiung University Road, Nanzih District, 81148 Kaohsiung, Taiwan
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3
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Xu X, Amuti A, Wusiman A. Catalyst and Additive‐Free Direct Amidation/Halogenation of Tertiary Arylamines with
N
‐haloimide/amides. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000796] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Xiu‐Juan Xu
- School of Chemistry and Chemical Engineering Xinjiang Normal University Urumqi 830054 People's Republic of China
| | - Adila Amuti
- School of Chemistry and Chemical Engineering Xinjiang Normal University Urumqi 830054 People's Republic of China
| | - Abudureheman Wusiman
- School of Chemistry and Chemical Engineering Xinjiang Normal University Urumqi 830054 People's Republic of China
- Xinjiang Key Laboratory of Energy Storage and Photoelectrocatalytic Materials Urumqi 830054 People's Republic of China
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4
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Wang Y, Su P. Why Can Cationic Halogen Bond Donors Activate the Ritter-Type Solvolysis of Benzhydryl Bromide but Cationic Hydrogen Bond Donors Can Not? ACS OMEGA 2020; 5:21862-21872. [PMID: 32905280 PMCID: PMC7469379 DOI: 10.1021/acsomega.0c03000] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 08/13/2020] [Indexed: 05/27/2023]
Abstract
It is found by experiment that the cationic halogen bond donors (cationic iodoimidazolium compounds) can activate the Ritter-type solvolysis of benzhydryl bromide, while the cationic hydrogen bond donors (cationic imidazolium compounds) could not. To understand the activation mechanism, various noncovalent interactions between benzhydryl bromide and a series of activators in solution, including halogen bond, hydrogen bond, lone pair···π/π+, and C-H···π/π+, were explored theoretically. Our study revealed that the activation difference can be contributed by the variation of the noncovalent interactions. For halogen bond donors, the successful activation is attributed by halogen bond and lone pair···π. The halogen bonds mainly provide the stabilization energy of the ion-pair complex with the help of lone pair···π. For hydrogen-bond donors, the contribution of the hydrogen bond is unable to compensate the like-charge repulsion arising from the generation of the carbocation, leading to the unsuccessful activation. In general, lone pair···π makes a difference.
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Affiliation(s)
- Yueyan Wang
- The State Key Laboratory
of Physical Chemistry of Solid Surfaces, Fujian Provincial Key Laboratory
of Theoretical and Computational Chemistry, and College of Chemistry
and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Peifeng Su
- The State Key Laboratory
of Physical Chemistry of Solid Surfaces, Fujian Provincial Key Laboratory
of Theoretical and Computational Chemistry, and College of Chemistry
and Chemical Engineering, Xiamen University, Xiamen 361005, China
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5
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Furst CG, Cota PHP, dos Santos Wanderley TA, Alberto EE. Synthesis of 2-bromomethyl-2,3-dihydrobenzofurans from 2-allylphenols enabled by organocatalytic activation of N-bromosuccinimide. NEW J CHEM 2020. [DOI: 10.1039/d0nj03432k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Activation of NBS in acetic acid and a catalytic amount of DBU promotes an intramolecular oxybromination of 2-allylphenols to produce highly aggregated value and densely functionalized 2-bromomethyl-2,3-dihydrobenzofurans.
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Affiliation(s)
- Carolina G. Furst
- Department of Chemistry
- Universidade Federal de Minas Gerais. 31.270-901
- Belo Horizonte
- Brazil
| | - Paulo H. P. Cota
- Department of Chemistry
- Universidade Federal de Minas Gerais. 31.270-901
- Belo Horizonte
- Brazil
| | | | - Eduardo E. Alberto
- Department of Chemistry
- Universidade Federal de Minas Gerais. 31.270-901
- Belo Horizonte
- Brazil
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6
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Wang Z, Yu Z, Yao Y, Zhang Y, Xiao X, Wang B. A practical synthesis of β-carbolines by tetra-n-butylammonium bromide (TBAB)-mediated cycloaromatization reaction of aldehydes with tryptophan derivatives. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.07.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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7
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Hocaoglu B, Yilmaz M. Regioselective radical addition of 3-oxopropanenitriles with terminal dienes promoted by cerium(IV) ammonium nitrate and manganese(III) acetate. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1611858] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Bahadir Hocaoglu
- Department of Chemistry, Faculty of Arts and Sciences, Kocaeli University, TR-41380 Umuttepe, Kocaeli-Turkey
| | - Mehmet Yilmaz
- Department of Chemistry, Faculty of Arts and Sciences, Kocaeli University, TR-41380 Umuttepe, Kocaeli-Turkey
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8
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Shi Y, Wong J, Ke Z, Yeung YY. Lipophilic Indole-Catalyzed Intermolecular Bromoesterification of Olefins in Nonpolar Media. J Org Chem 2019; 84:4017-4024. [DOI: 10.1021/acs.joc.9b00029] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yao Shi
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, NT Hong Kong (China)
| | - Jonathan Wong
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, NT Hong Kong (China)
| | - Zhihai Ke
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, NT Hong Kong (China)
| | - Ying-Yeung Yeung
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, NT Hong Kong (China)
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9
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Wei T, Zeng Y, He W, Geng L, Hong L. A facile transformation of alkynes into α-amino ketones by an N-bromosuccinimide-mediated one-pot strategy. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2018.03.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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10
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Abstract
Selenium-based catalysts, including organo- and inorganoselenium ones, in organic synthesis in the recent decade are reviewed.
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Affiliation(s)
- Lixiong Shao
- College of Chemistry and Materials Engineering
- Wenzhou University
- Chashan University Town
- Wenzhou
- P. R. China
| | - Yiming Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Jianmei Lu
- College of Chemistry and Materials Engineering
- Wenzhou University
- Chashan University Town
- Wenzhou
- P. R. China
| | - Xuefeng Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- P. R. China
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11
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Thummala Y, Morri AK, Karunakar GV, Doddi VR. DBU-Mediated Efficient Synthesis of Diaryl Ethynes and Enynes from 1,1-Dibromoalkenes at Room Temperature. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801143] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yadagiri Thummala
- Organic and Biomolecular Chemistry Division; CSIR-Indian Institute of Chemical Technology (CSIR-IICT); 500007 Hyderabad India
| | - Ashok K. Morri
- Organic and Biomolecular Chemistry Division; CSIR-Indian Institute of Chemical Technology (CSIR-IICT); 500007 Hyderabad India
| | - Galla V. Karunakar
- Organic and Biomolecular Chemistry Division; CSIR-Indian Institute of Chemical Technology (CSIR-IICT); 500007 Hyderabad India
| | - Venkata Ramana Doddi
- Organic and Biomolecular Chemistry Division; CSIR-Indian Institute of Chemical Technology (CSIR-IICT); 500007 Hyderabad India
- Department of Chemistry and Chemical Sciences; Central University of Jammu; Jammu India
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12
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Gieuw MH, Leung VMY, Ke Z, Yeung YY. Electrophilic Bromolactonization of Cyclopropyl Diesters Using Lewis Basic Chalcogenide Catalysts. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800886] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Matthew H. Gieuw
- Department of Chemistry; The Chinese University of Hong Kong; Shatin, NT, Hong Kong People's Republic of China
| | - Vincent Ming-Yau Leung
- Department of Chemistry; The Chinese University of Hong Kong; Shatin, NT, Hong Kong People's Republic of China
| | - Zhihai Ke
- Department of Chemistry; The Chinese University of Hong Kong; Shatin, NT, Hong Kong People's Republic of China
| | - Ying-Yeung Yeung
- Department of Chemistry; The Chinese University of Hong Kong; Shatin, NT, Hong Kong People's Republic of China
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13
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NBS-mediated practical cyclization of N-acyl amidines to 1,2,4-oxadiazoles via oxidative N‒O bond formation. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.07.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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14
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Liu X, Zhao X, Liang F, Ren B. t-BuONa-mediated direct C-H halogenation of electron-deficient (hetero)arenes. Org Biomol Chem 2018; 16:886-890. [PMID: 29340407 DOI: 10.1039/c7ob03081a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An efficient halogenation of electron-deficient (hetero)arenes is described. The reaction utilizes common t-BuONa as a catalyst (for iodination) or a promoter (for bromination and chlorination), and perfluorobutyl iodide, CBr4 or CCl4 as the readily-available halogenating agents, respectively. The protocol features broad scope, high efficiency, mild conditions and gram scalability. An ionic pathway involving halogen bond formation and halophilic attack is proposed. The utility of the resulting iodinated heteroarenes is demonstrated in visible light-mediated Caryl-Caryl cross-coupling reaction.
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Affiliation(s)
- Xia Liu
- College of Chemistry, Liaoning University, Shenyang 110036, China.
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15
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Yu JM, Cai C. Ambient-Light-Promoted Perfluoroalkylative Cyclization of β,γ-Unsaturated Hydrazones: Synthesis of Perfluoroalkylated Pyrazolines. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701201] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jing-miao Yu
- Chemical Engineering College; Nanjing University of Science and Technology; 200 Xiao Ling Wei Street Nanjing Jiangsu People's Republic of China
| | - Chun Cai
- Chemical Engineering College; Nanjing University of Science and Technology; 200 Xiao Ling Wei Street Nanjing Jiangsu People's Republic of China
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 20032 Shanghai Shanghai
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16
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Guha S, Kazi I, Nandy A, Sekar G. Role of Lewis-Base-Coordinated Halogen(I) Intermediates in Organic Synthesis: The Journey from Unstable Intermediates to Versatile Reagents. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700916] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Somraj Guha
- Department of Chemistry; Indian Institute of Technology; 600036 Madras Chennai India
| | - Imran Kazi
- Department of Chemistry; Indian Institute of Technology; 600036 Madras Chennai India
| | - Anuradha Nandy
- Department of Chemistry; Indian Institute of Technology; 600036 Madras Chennai India
| | - Govindasamy Sekar
- Department of Chemistry; Indian Institute of Technology; 600036 Madras Chennai India
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17
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Antoine John A, Lin Q. Synthesis of Azobenzenes Using N-Chlorosuccinimide and 1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU). J Org Chem 2017; 82:9873-9876. [PMID: 28846399 DOI: 10.1021/acs.joc.7b01530] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A convenient method for the synthesis of symmetrical azobenzenes is reported. This one-step procedure involves treatment of anilines with N-chlorosuccinimide (NCS) and organic base 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU). A wide range of commercially available substituted anilines readily participate in this reaction to produce the corresponding azobenzenes in moderate-to-excellent yields in minutes.
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Affiliation(s)
- Alford Antoine John
- Department of Chemistry, State University of New York at Buffalo , Buffalo, New York 14260-3000, United States
| | - Qing Lin
- Department of Chemistry, State University of New York at Buffalo , Buffalo, New York 14260-3000, United States
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18
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Lu C, Dong M, Zhu HY. Regioselective Bromination of Thieno[2′,3′:4,5]pyrrolo[1,2-d][1,2,4]triazin-8(7H)-one and Sequential Suzuki Couplings. J Org Chem 2017; 82:9229-9234. [DOI: 10.1021/acs.joc.7b01542] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chunliang Lu
- Novartis Institutes for BioMedical Research (China), Zhangjiang Hi-Tech Park, Shanghai 201203, China
| | - Minyu Dong
- Shanghai ChemPartner Co., Ltd., Zhangjiang Hi-Tech Park, Shanghai 201203, China
| | - Hugh Y. Zhu
- Novartis Institutes for BioMedical Research (China), Zhangjiang Hi-Tech Park, Shanghai 201203, China
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19
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Parella R, Babu SA. Pd(II)-Catalyzed, Picolinamide-Assisted, Z-Selective γ-Arylation of Allylamines To Construct Z-Cinnamylamines. J Org Chem 2017; 82:6550-6567. [DOI: 10.1021/acs.joc.7b00535] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ramarao Parella
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli P.O., Sector 81, SAS Nagar, Knowledge City, Mohali, Punjab 140306, India
| | - Srinivasarao Arulananda Babu
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli P.O., Sector 81, SAS Nagar, Knowledge City, Mohali, Punjab 140306, India
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20
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Wang R, Guan W, Han ZB, Liang F, Suga T, Bi X, Nishide H. Ambient-Light-Promoted Three-Component Annulation: Synthesis of Perfluoroalkylated Pyrimidines. Org Lett 2017; 19:2358-2361. [DOI: 10.1021/acs.orglett.7b00894] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rui Wang
- College
of Chemistry, Liaoning University, Shenyang 110036, China
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Wei Guan
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Zheng-Bo Han
- College
of Chemistry, Liaoning University, Shenyang 110036, China
| | - Fushun Liang
- College
of Chemistry, Liaoning University, Shenyang 110036, China
| | - Takeo Suga
- Department
of Applied Chemistry, Waseda University, Tokyo 169-8555, Japan
| | - Xihe Bi
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Hiroyuki Nishide
- Department
of Applied Chemistry, Waseda University, Tokyo 169-8555, Japan
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21
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Krishna Moodapelly S, Sharma GVM, Ramana Doddi V. Controlled Reactivity of 1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU) in the Selective Synthesis of 1-(Bromoethynyl)arenes. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601279] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Shiva Krishna Moodapelly
- Organic and Biomolecular Chemistry Division; CSIR-Indian Institute of Chemical Technology (CSIR-IICT); Hyderabad - 500007 India
| | - Gangavaram V. M. Sharma
- Organic and Biomolecular Chemistry Division; CSIR-Indian Institute of Chemical Technology (CSIR-IICT); Hyderabad - 500007 India
| | - Venkata Ramana Doddi
- Organic and Biomolecular Chemistry Division; CSIR-Indian Institute of Chemical Technology (CSIR-IICT); Hyderabad - 500007 India
- Department of Chemistry and Chemical Sciences; Central University of Jammu; Jammu India
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22
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Huang P, Peng X, Hu D, Liao H, Tang S, Liu L. Regioselective synthesis of 2,3′-biindoles mediated by an NBS-induced homo-coupling of indoles. Org Biomol Chem 2017; 15:9622-9629. [DOI: 10.1039/c7ob02312j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient method for the synthesis of 2,3′-biindole and [3,2-a]carbazole derivatives via an NBS-induced homo-coupling of indoles with high regioselectivity.
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Affiliation(s)
- Panpan Huang
- Department of Chemistry and Chemical Engineering
- Gannan Normal University
- Ganzhou
- P. R. China
| | - Xiangjun Peng
- School of Pharmaceutical Science
- Gannan Medical University
- Ganzhou
- P. R. China
| | - Dan Hu
- Department of Chemistry and Chemical Engineering
- Gannan Normal University
- Ganzhou
- P. R. China
| | - Huiwu Liao
- Department of Chemistry and Chemical Engineering
- Gannan Normal University
- Ganzhou
- P. R. China
| | - Shaobin Tang
- Department of Chemistry and Chemical Engineering
- Gannan Normal University
- Ganzhou
- P. R. China
| | - Liangxian Liu
- Department of Chemistry and Chemical Engineering
- Gannan Normal University
- Ganzhou
- P. R. China
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23
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Feng S, Li J, Liu Z, Sun H, Shi H, Wang X, Xie X, She X. Visible-light-mediated radical cascade reaction: synthesis of 3-bromocoumarins from alkynoates. Org Biomol Chem 2017; 15:8820-8826. [DOI: 10.1039/c7ob02199b] [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
The development of a visible-light mediated bromo radical addition/spirocyclization/ester migration cascade reaction to generate 3-bromocoumarins from alkynoates is reported.
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Affiliation(s)
- Shangbiao Feng
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Jinlai Li
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Zaimin Liu
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Haiyu Sun
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Hongliang Shi
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Xiaolei Wang
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Xingang Xie
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
| | - Xuegong She
- State Key Laboratory of Applied Organic Chemistry
- Department of Chemistry
- Lanzhou University
- Lanzhou
- China
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24
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Meng Q, Xu H, Xu J, Hao G, Gao X, Hu X, Rong L, Cai P. An Efficient Four‐component Reaction for the Synthesis of Spiroheterocyclic Compounds. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2787] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Qinghua Meng
- College of Chemistry and Chemical EngineeringJiangsu Normal University Xuzhou 221116 Jiangsu People's Republic of China
| | - Hui Xu
- College of Chemistry and Chemical EngineeringJiangsu Normal University Xuzhou 221116 Jiangsu People's Republic of China
| | - Jing Xu
- College of Chemistry and Chemical EngineeringJiangsu Normal University Xuzhou 221116 Jiangsu People's Republic of China
| | - Ganlu Hao
- College of Chemistry and Chemical EngineeringJiangsu Normal University Xuzhou 221116 Jiangsu People's Republic of China
| | - Xu Gao
- College of Chemistry and Chemical EngineeringJiangsu Normal University Xuzhou 221116 Jiangsu People's Republic of China
| | - Xiaoyu Hu
- College of Chemistry and Chemical EngineeringJiangsu Normal University Xuzhou 221116 Jiangsu People's Republic of China
| | - Liang‐Ce Rong
- College of Chemistry and Chemical EngineeringJiangsu Normal University Xuzhou 221116 Jiangsu People's Republic of China
| | - Peijun Cai
- School of Chemical Engineering and TechnologyChina University of Mining and Technology Xuzhou 221006 Jiangsu People's Republic of China
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Bulfield D, Huber SM. Halogen Bonding in Organic Synthesis and Organocatalysis. Chemistry 2016; 22:14434-50. [PMID: 27465662 DOI: 10.1002/chem.201601844] [Citation(s) in RCA: 390] [Impact Index Per Article: 48.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Indexed: 12/16/2022]
Abstract
Halogen bonding is a noncovalent interaction similar to hydrogen bonding, which is based on electrophilic halogen substituents. Hydrogen-bonding-based organocatalysis is a well-established strategy which has found numerous applications in recent years. In light of this, halogen bonding has recently been introduced as a key interaction for the design of activators or organocatalysts that is complementary to hydrogen bonding. This Concept features a discussion on the history and electronic origin of halogen bonding, summarizes all relevant examples of its application in organocatalysis, and provides an overview on the use of cationic or polyfluorinated halogen-bond donors in halide abstraction reactions or in the activation of neutral organic substrates.
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Affiliation(s)
- David Bulfield
- Department of Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstraße 150, 44801, Bochum, Germany
| | - Stefan M Huber
- Department of Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstraße 150, 44801, Bochum, Germany.
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27
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Li Y, Liang F. With DBU-activated N-bromophthalimide as potential N-sources to achieve P–N cross-coupling of P(O)–H compounds. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.05.076] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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28
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Saikia I, Borah AJ, Phukan P. Use of Bromine and Bromo-Organic Compounds in Organic Synthesis. Chem Rev 2016; 116:6837-7042. [PMID: 27199233 DOI: 10.1021/acs.chemrev.5b00400] [Citation(s) in RCA: 283] [Impact Index Per Article: 35.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Bromination is one of the most important transformations in organic synthesis and can be carried out using bromine and many other bromo compounds. Use of molecular bromine in organic synthesis is well-known. However, due to the hazardous nature of bromine, enormous growth has been witnessed in the past several decades for the development of solid bromine carriers. This review outlines the use of bromine and different bromo-organic compounds in organic synthesis. The applications of bromine, a total of 107 bromo-organic compounds, 11 other brominating agents, and a few natural bromine sources were incorporated. The scope of these reagents for various organic transformations such as bromination, cohalogenation, oxidation, cyclization, ring-opening reactions, substitution, rearrangement, hydrolysis, catalysis, etc. has been described briefly to highlight important aspects of the bromo-organic compounds in organic synthesis.
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Affiliation(s)
| | - Arun Jyoti Borah
- Department of Chemistry, Gauahti University , Guwahati-781014, Assam, India
| | - Prodeep Phukan
- Department of Chemistry, Gauahti University , Guwahati-781014, Assam, India
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29
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Prasad PK, Reddi RN, Sudalai A. Regioselective Oxo-Amination of Alkenes and Enol Ethers with N-Bromosuccinimide–Dimethyl Sulfoxide Combination: A Facile Synthesis of α-Amino-Ketones and Esters. Org Lett 2016; 18:500-3. [DOI: 10.1021/acs.orglett.5b03540] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Arumugam Sudalai
- Chemical
Engineering and Process Development Division, National Chemical Laboratory, Pashan Road, Pune, 411008, India
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30
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O’Broin CQ, Fernández P, Martínez C, Muñiz K. N-Iodosuccinimide-Promoted Hofmann–Löffler Reactions of Sulfonimides under Visible Light. Org Lett 2016; 18:436-9. [DOI: 10.1021/acs.orglett.5b03476] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Calvin Q. O’Broin
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Patricia Fernández
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Claudio Martínez
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Kilian Muñiz
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Pg. Lluís Companys 23, 08010 Barcelona, Spain
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31
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Gao WC, Hu F, Tian J, Li X, Wei WL, Chang HH. Hypoiodite-catalysed oxidative cyclisation of Michael adducts of chalcones with 1,3-dicarbonyl compounds: a facile and versatile approach to substituted furans and cyclopropanes. Chem Commun (Camb) 2016; 52:13097-13100. [DOI: 10.1039/c6cc06624k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hypoiodite catalysis for selective oxidative cyclization has been developed, yielding either furans or cyclopropanes with excellent diastereoselectivity.
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Affiliation(s)
- Wen-Chao Gao
- College of Chemistry and Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
| | - Fei Hu
- College of Chemistry and Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
| | - Jun Tian
- College of Chemistry and Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
| | - Xing Li
- College of Chemistry and Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
| | - Wen-Long Wei
- College of Chemistry and Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
| | - Hong-Hong Chang
- College of Chemistry and Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
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32
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Shinde MH, Kshirsagar UA. N-Bromosuccinimide promoted and base switchable one pot synthesis of α-imido and α-amino ketones from styrenes. Org Biomol Chem 2016; 14:858-61. [DOI: 10.1039/c5ob02034d] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
An N-Bromosuccinimide (NBS) promoted one pot strategy for the synthesis of α-amino functionalized aryl ketones starting from commercially available styrenes has been developed.
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Affiliation(s)
- Mahesh H. Shinde
- Department of Chemistry
- Savitribai Phule Pune University (Formerly: University of Pune)
- Pune-411007
- India
| | - Umesh A. Kshirsagar
- Department of Chemistry
- Savitribai Phule Pune University (Formerly: University of Pune)
- Pune-411007
- India
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33
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Li M, Zhang L, Zhao B, Liang F. One-pot, two-step conversion of alkynes to α-amino (α,α-diamino) ketones with a DMF-activated N-bromoimide strategy. RSC Adv 2016. [DOI: 10.1039/c6ra12770c] [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] Open
Abstract
A simple, one-pot, two-step cascade reaction for the synthesis of α-amino ketones has been developed.
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Affiliation(s)
- Mengru Li
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Luyan Zhang
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Baozhong Zhao
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Fushun Liang
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
- College of Chemistry
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Xiao Q, He Q, Li J, Wang J. 1,4-Diazabicyclo[2.2.2]octane-Promoted Aminotrifluoromethylthiolation of α,β-Unsaturated Carbonyl Compounds: N-Trifluoromethylthio-4-nitrophthalimide Acts as Both the Nitrogen and SCF3 Sources. Org Lett 2015; 17:6090-3. [DOI: 10.1021/acs.orglett.5b03116] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Qing Xiao
- Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Qijie He
- Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Juncheng Li
- Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Jun Wang
- Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
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Kiyokawa K, Kojima T, Hishikawa Y, Minakata S. Iodine-Catalyzed Decarboxylative Amidation of β,γ-Unsaturated Carboxylic Acids with Chloramine Salts Leading to Allylic Amides. Chemistry 2015; 21:15548-52. [PMID: 26493878 DOI: 10.1002/chem.201503298] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Indexed: 01/05/2023]
Abstract
The iodine-catalyzed decarboxylative amidation of β,γ-unsaturated carboxylic acids with chloramine salts is described. This method enables the regioselective synthesis of allylic amides from various types of β,γ-unsaturated carboxylic acids containing substituents at the α- and β-positions. In the reaction, N-iodo-N-chloroamides, generated by the reaction of a chloramine salt with I2 , function as a key active species. The reaction provides an attractive alternative to existing methods for the synthesis of useful secondary allylic amine derivatives.
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Affiliation(s)
- Kensuke Kiyokawa
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871 (Japan)
| | - Takumi Kojima
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871 (Japan)
| | - Yusuke Hishikawa
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871 (Japan)
| | - Satoshi Minakata
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871 (Japan).
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36
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Sun J, Wang Y, Pan Y. Metal-Free Catalytic Approach for Allylic C–H Amination Using N-Heterocycles via sp3 C–H Bond Activation. J Org Chem 2015; 80:8945-50. [DOI: 10.1021/acs.joc.5b01383] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jinwei Sun
- School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Yi Wang
- School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Yi Pan
- School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210093, China
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37
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Alanthadka A, Maheswari CU. N-Heterocyclic Carbene-Catalyzed Oxidative Amidation of Aldehydes with Amines. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201400739] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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38
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Lei Y, Qiu R, Zhang L, Xu C, Pan Y, Qin X, Li H, Xu L, Deng Y. Palladium-Catalyzed Direct Arylation of Allylamines with Simple Arenes. ChemCatChem 2015. [DOI: 10.1002/cctc.201403019] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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39
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Zhang L, Li Y, Jin LY, Liang F. Metal-free C–N cross-coupling of electrophilic compounds and N-haloimides. RSC Adv 2015. [DOI: 10.1039/c5ra13708j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
When DBU is added, the cross-coupling reaction between alkyl halides (halogen = Cl, Br and I) and N-haloimides (halogen = Cl, Br) occurs, resulting in the formation of aminated products.
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Affiliation(s)
- Luyan Zhang
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Yanru Li
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | | | - Fushun Liang
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
- Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education
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40
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Zhu R, Yu K, Gu Z. N-Bromoacetamide-mediated domino cyclization and elimination of homoallylic trichloroacetimidates: a novel approach toward the synthesis of 1-bromo-2-amino-3-butene derivatives. Org Biomol Chem 2014; 12:6653-60. [PMID: 25029658 DOI: 10.1039/c4ob01126k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A practical synthesis of 1-bromo-2-amino-3-butene derivatives from homoallylic trichloroacetimidates was reported. Simply heating the mixture of substrates and N-bromoacetamide in DMF at 90 °C would give the desired products in moderate to excellent yields. The reaction may proceed through a domino bromo-cyclization and elimination pathway. The synthesis of 4,5-dihydrooxazoles from 1-bromo-2-amino-3-butene derivatives was also investigated.
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Affiliation(s)
- Rui Zhu
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China.
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41
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42
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Tan H, Li M, Liang F. Direct α-C-H amination of β-dicarbonyl compounds using DBU-activated N-haloimides as nitrogen sources. RSC Adv 2014. [DOI: 10.1039/c4ra07118b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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43
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Li M, Yuan H, Zhao B, Liang F, Zhang J. Alkyne aminohalogenation enabled by DBU-activated N-haloimides: direct synthesis of halogenated enamines. Chem Commun (Camb) 2014; 50:2360-3. [PMID: 24448462 DOI: 10.1039/c3cc49572h] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Activated by DBU, N-haloimides can be used as both halogen and nitrogen sources to achieve the difunctionalization of terminal alkynes, giving rise to useful halogenated enamines with high efficiency and high regio- and stereoselectivities. The cascade reaction features simple manipulation, mild conditions, a broad substrate scope, readily available reagents, and atom-economy.
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Affiliation(s)
- Mengru Li
- Department of Chemistry, Northeast Normal University, Changchun 130024, China.
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44
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Li M, Li Y, Zhao B, Liang F, Jin LY. Facile and efficient synthesis of 1-haloalkynes via DBU-mediated reaction of terminal alkynes and N-haloimides under mild conditions. RSC Adv 2014. [DOI: 10.1039/c4ra04736b] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Directly from terminal alkynes and with N-halosuccinimides (halo = Br and I) or N-cholorophthalimide as the halogen sources, DBU as the activator, 1-haloalkynes were prepared in good to excellent yields at room temperature.
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Affiliation(s)
- Mengru Li
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
| | - Yueju Li
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
| | - Baozhong Zhao
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
| | - Fushun Liang
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
| | - Long-Yi Jin
- Faculty of Chemistry
- Yanbian University
- Yanji 133002, China
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