1
|
Zou D, Han G. The Coupling of Carbon and Nitrogen Substituents with Nitroarenes:Vicarious Nucleophilic Substitution of Hydrogen in Nitroarenes. CURR ORG CHEM 2022. [DOI: 10.2174/1385272826666220509142255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
In recent years, nitroarenes have been extensively exploited as green, efficient electrophilic arylation reagents used in a variety of organic syntheses. Transition-metal-free cross-coupling reactions and vicarious nucleophilic substitution (VNS) have become practical and reliable synthetic methods to access momentous func-tionalized organic compounds. Thus, the introduction of various substituents into nitroarenes has attracted considerable attention as important synthetic approach-es due to their simplicity and practicality. In this review, we comprehensively summarize the coupling of several carbon and nitrogen substituents with ni-troarenes via nucleophilic substitution under mild conditions, followed by the ap-plication of these transversions in the construction of carbon and heterocyclic rings.
Collapse
Affiliation(s)
- Dong Zou
- Department of Pharmacy, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Gang Han
- Department of Pharmacy, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| |
Collapse
|
2
|
li J, Dong Z, Wang B, İşcan A, Jin H, Chen L, Fan Z, Walsh P, Liang G. Arylations with Nitroarenes for One-Pot Syntheses of Triaryl-methanols and Tetraarylmethanes. Org Chem Front 2022. [DOI: 10.1039/d2qo00576j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Triarylmethanols are well-known core structures in natural products and pharmacologically relevant compounds. In general, transition metal-based catalysts or highly reactive organometallics are employed for the synthesis of these compounds. Herein,...
Collapse
|
3
|
Li J, Zhang S, Lao J, Zou H. Direct Transition-Metal Free Benzene C-H Functionalization by Intramolecular Non-Nitroarene Nucleophilic Aromatic Substitution of Hydrogen to Diverse AIEgens. CHEMSUSCHEM 2021; 14:3208-3218. [PMID: 34132487 DOI: 10.1002/cssc.202101109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/15/2021] [Indexed: 06/12/2023]
Abstract
Direct C(sp2 )-H functionalization through nitroarene-triggered nucleophilic aromatic substitution of hydrogen (SNArH ) has attracted growing attention, owing to its high efficiency and low carbon footprint. In this study, non-nitro-group-assisted SN ArH has been developed for direct benzene functionalization in one pot under mild conditions. The electron-withdrawing carbonyl group and the halide or trifluoromethyl group on the phenyl ring enable the σH adduct formation to fulfill the intramolecular C(sp2 )-C(sp3 ) bond construction. Notably, the cyano group serves as both the electron-withdrawing group to activate the C(sp3 )-H bond and the leaving group to fulfill the β-elimination. Three series of pyrrolo[1,2-b]isoquinolinones, as well as unexpected rearrangement products 3-(1H-pyrrol-2-yl)-1H-inden-1-ones are regioselectively obtained through a simple and efficient base-catalyzed one-pot strategy. Mechanistic studies indicate that the σH adduct from carbanion addition to hydrogen serves as the sole intermediate for all of the aforementioned transformations. These molecules show intense luminescence and the subsequent one-step structural modification results in the aggregation-induced emission (AIE) derivatives with redshifted full-color tunable fluorescence, large Stokes shifts, and good quantum yields. Further living cell imaging investigations suggest their potential application as specific bioprobes for lipid droplet localization and visualization.
Collapse
Affiliation(s)
- Jinbiao Li
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Shuaizhong Zhang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Jiaxin Lao
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Hongbin Zou
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| |
Collapse
|
4
|
Qiu ZX, Dong PZ, Zhao HL, Zhao MF, Qiu B, Xiao J. Brønsted Acid-Catalyzed Minisci-Type Cross-Dehydrogenative Coupling of N-Heteroaromatics and Cyclic Ethers. J Org Chem 2021; 86:9299-9305. [PMID: 34181422 DOI: 10.1021/acs.joc.1c00337] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Brønsted acid-catalyzed direct C(sp2)-H alkylation of N-heteroaromatics with cyclic ethers via a cross-dehydrogenative coupling reaction in the presence of benzoyl peroxide was developed. This methodology successfully provided an easy access to a variety of alkyl-substituted quinoxaline, benzoimidazole, pyrazine, pyrimidine, quinoline, isoquinoline, and pyridine derivatives in up to 94% yield under metal-free conditions.
Collapse
Affiliation(s)
- Zhong-Xuan Qiu
- School of Biological and Chemical Engineering, Qingdao Technical College, Qingdao 266555, P.R. China
| | - Pei-Zhen Dong
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Huai-Li Zhao
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Mei-Fa Zhao
- School of Biological and Chemical Engineering, Qingdao Technical College, Qingdao 266555, P.R. China
| | - Bin Qiu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Jian Xiao
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| |
Collapse
|
5
|
Liu X, Sotiropoulos JM, Taillefer M. An alternative mode to activate alcohols: application to the synthesis of N-heteroarene derivatives. Org Chem Front 2021. [DOI: 10.1039/d1qo00930c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Activation of primary alcohols in the presence of KOtBu/DMF allowed the synthesis of N-heteroarenes via the alkylation of the C(sp3)–H bond of methyl azaarenes. A mechanism involving the formation of an alkyl formate intermediate is proposed.
Collapse
Affiliation(s)
- Xiaoping Liu
- ICGM, Université de Montpellier, CNRS, ENSCM, 34296 Montpellier, France
| | | | - Marc Taillefer
- ICGM, Université de Montpellier, CNRS, ENSCM, 34296 Montpellier, France
| |
Collapse
|
6
|
Madasu J, Shinde S, Das R, Patel S, Shard A. Potassium tert-butoxide mediated C-C, C-N, C-O and C-S bond forming reactions. Org Biomol Chem 2020; 18:8346-8365. [PMID: 33020791 DOI: 10.1039/d0ob01382j] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Potassium tertiary butoxide (KOtBu) mediated constructions of C-C, C-O, C-N, and C-S bonds are reviewed with special emphasis on their synthetic applications. KOtBu can be used to perform reactions already known to be carried out using transition metals, but it has advantages in terms of environmental congruence and economic cost. KOtBu is widely employed in organic synthesis to mediate the construction of C-C, C-O, C-N, C-S and miscellaneous bonds in good to excellent yields. Synthetic uses of KOtBu in coupling, alkylation, arylation, α-phenylation, cyclization, Heck-type, annulation, photo-arylation, aromatic-substitution, amidation, and silylation reactions are summarized and discussed. The mechanisms through which KOtBu carries out a specific reaction are also discussed. One of the goals of this review is to attract the attention of chemists as to the benefits of using KOtBu as an environmentally benign alternative to transition metals and its applications in the construction of chemical bonds with predominant importance in organic synthesis. This review completely covers the synthetic protocols that have been performed using KOtBu in the last two decades.
Collapse
Affiliation(s)
- Jayashree Madasu
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gujarat 380054, India.
| | - Shital Shinde
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gujarat 380054, India.
| | - Rudradip Das
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gujarat 380054, India.
| | - Sagarkumar Patel
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gujarat 380054, India.
| | - Amit Shard
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gujarat 380054, India.
| |
Collapse
|
7
|
Loska R, Mąkosza M. Introduction of Carbon Substituents into Nitroarenes via Nucleophilic Substitution of Hydrogen: New Developments. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1707149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Nucleophilic substitution of hydrogen in nitroarenes has become a powerful synthetic tool for functionalization of these important organic substrates, complementary to other modern methods. In this review we present new developments in the area of introduction of alkyl and functionalized alkyl substituents into nitroarene rings via nucleophilic substitution of hydrogen, followed by application of these processes in the construction of carbo- and heterocyclic rings. Finally, new developments in the investigation of the mechanism of SNArH are summarized.1 Introduction2 Alkylation and Haloalkylation3 Functionalized Carbon Substituents4 Formation of Carbo- and Heterocyclic Rings5 Mechanistic Aspects of SNArH6 Conclusion
Collapse
|
8
|
Muhammad I, Mannathan S, Sasidharan M. Quaternary ammonium hydroxide‐functionalized
g‐C
3
N
4
catalyst for aerobic hydroxylation of arylboronic acids to phenols. J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.202000141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ibrahim Muhammad
- SRM Research Institute and Department of ChemistrySRM Institute of Science and Technology Kattankulathur Tamilnadu India
| | | | - Manickam Sasidharan
- SRM Research Institute and Department of ChemistrySRM Institute of Science and Technology Kattankulathur Tamilnadu India
| |
Collapse
|
9
|
Ho TH, Le HHK, To TA, Nguyen TT, Phan NTS. Functionalization of Primary C–H Bonds in Picolines toward Pyridylthioamides. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Tuan H. Ho
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Ha H. K. Le
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Tuong A. To
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Tung T. Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Nam T. S. Phan
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| |
Collapse
|
10
|
Zhang Y, Fulajtárová K, Kubů M, Mazur M, Hronec M, Čejka J. Electronic/steric effects in hydrogenation of nitroarenes over the heterogeneous Pd@BEA and Pd@MWW catalysts. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.11.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
11
|
Chen Z, Liang H, Chen R, Chen L, Tang X, Yan M, Zhang X. Cross‐Dehydrogenative C−O Coupling of Oximes with Acetonitrile, Ketones and Esters. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900370] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Zhen‐Yu Chen
- The Institute of Drug Synthesis and Pharmaceutical Process, School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Hua‐Ju Liang
- The Institute of Drug Synthesis and Pharmaceutical Process, School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Ri‐Xing Chen
- School of Pharmaceutical ScienceGuangzhou University of Chinese Medicine Guangzhou 510006 People's Republic of China
| | - Lei Chen
- The Institute of Drug Synthesis and Pharmaceutical Process, School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Xiang‐Zheng Tang
- The Institute of Drug Synthesis and Pharmaceutical Process, School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Ming Yan
- The Institute of Drug Synthesis and Pharmaceutical Process, School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Xue‐Jing Zhang
- The Institute of Drug Synthesis and Pharmaceutical Process, School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 People's Republic of China
| |
Collapse
|
12
|
Shen YB, Li SS, Sun YM, Yu L, Hao ZH, Liu Q, Xiao J. Organocatalytic C(sp3)–H Functionalization of 5-Methyl-2,3-dihydrofuran Derivatives with Trifluoropyruvates via a Sequential exo-Tautomerization/Carbonyl-Ene Process. J Org Chem 2019; 84:2779-2785. [DOI: 10.1021/acs.joc.8b03170] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yao-Bin Shen
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Shuai-Shuai Li
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Yun-Ming Sun
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Liping Yu
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao 266109, China
| | - Zhi-Hui Hao
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Qing Liu
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Jian Xiao
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
- College of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China
| |
Collapse
|
13
|
Muhammad I, Balakrishnan MH, Sasidharan M, Mannathan S. Potassium tert-butoxide mediated aerobic hydroxylation of arylboronic acids: an application towards the synthesis of (E)-phenoxy acrylates. NEW J CHEM 2019. [DOI: 10.1039/c9nj02121c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The first example of potassium tert-butoxide mediated aerobic hydroxylation of arylboronic acids affording phenols is described.
Collapse
Affiliation(s)
- Ibrahim Muhammad
- SRM Research Institute
- SRM Institute of Science and Technology (formerly known as SRM University)
- Kattankulathur
- India
| | - Madasamy Hari Balakrishnan
- Department of Chemistry
- SRM Institute of Science and Technology (formerly known as SRM University)
- Kattankulathur
- India
| | - Manickam Sasidharan
- SRM Research Institute
- SRM Institute of Science and Technology (formerly known as SRM University)
- Kattankulathur
- India
| | | |
Collapse
|
14
|
Lovato K, Guo L, Xu QL, Liu F, Yousufuddin M, Ess DH, Kürti L, Gao H. Transition metal-free direct dehydrogenative arylation of activated C(sp 3)-H bonds: synthetic ambit and DFT reactivity predictions. Chem Sci 2018; 9:7992-7999. [PMID: 30450183 PMCID: PMC6202766 DOI: 10.1039/c8sc02758g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 08/23/2018] [Indexed: 11/21/2022] Open
Abstract
A transition metal-free dehydrogenative method for the direct mono-arylation of a wide range of activated C(sp3)-H bonds has been developed. This operationally simple and environmentally friendly aerobic arylation uses tert-BuOK as the base and nitroarenes as electrophiles to prepare up to gram quantities of structurally diverse sets (>60 examples) of α-arylated esters, amides, nitriles, sulfones and triaryl methanes. DFT calculations provided a predictive model, which states that substrates containing a C(sp3)-H bond with a sufficiently low pK a value should readily undergo arylation. The DFT prediction was confirmed through experimental testing of nearly a dozen substrates containing activated C(sp3)-H bonds. This arylation method was also used in a one-pot protocol to synthesize over twenty compounds containing all-carbon quaternary centers.
Collapse
Affiliation(s)
- Kaitlyn Lovato
- Department of Chemistry , Rice University , BioScience Research Collaborative , Houston , Texas 77005 , USA .
| | - Lirong Guo
- Ministry of Education Key Laboratory of Colloid and Interface Chemistry , School of Chemistry and Chemical Engineering , Shandong University , Ji'nan 250100 , China .
| | - Qing-Long Xu
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease , State Key Laboratory of Natural Medicines , China Pharmaceutical University , 24 Tongjia Xiang , Nanjing 210009 , China
| | - Fengting Liu
- Ministry of Education Key Laboratory of Colloid and Interface Chemistry , School of Chemistry and Chemical Engineering , Shandong University , Ji'nan 250100 , China .
| | - Muhammed Yousufuddin
- Life and Health Sciences Department , The University of North Texas at Dallas , Dallas , Texas 76016 , USA
| | - Daniel H Ess
- Department of Chemistry and Biochemistry , Brigham Young University , Provo , Utah 84602 , USA .
| | - László Kürti
- Department of Chemistry , Rice University , BioScience Research Collaborative , Houston , Texas 77005 , USA .
| | - Hongyin Gao
- Ministry of Education Key Laboratory of Colloid and Interface Chemistry , School of Chemistry and Chemical Engineering , Shandong University , Ji'nan 250100 , China .
| |
Collapse
|
15
|
Kumar P, Sharma AK, Guntreddi T, Singh R, Singh KN. Transition-Metal-Free Regiospecific Aroylation of Nitroarenes Using Ethyl Arylacetates at Room Temperature. Org Lett 2018; 20:744-747. [PMID: 29345475 DOI: 10.1021/acs.orglett.7b03882] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A novel regiospecific C(sp3)-C(sp2) coupling between ethyl arylacetates and nitroarenes has been developed to deliver biaryl ketones in excellent yields. The protocol is metal-free, mild, and compatible with a number of functional groups on both of the reacting partners.
Collapse
Affiliation(s)
- Promod Kumar
- Department of Chemistry (Centre of Advanced Study), Institute of Science, Banaras Hindu University , Varanasi-221005, India
| | - Anup Kumar Sharma
- Department of Chemistry (Centre of Advanced Study), Institute of Science, Banaras Hindu University , Varanasi-221005, India
| | - Tirumaleswararao Guntreddi
- Department of Chemistry (Centre of Advanced Study), Institute of Science, Banaras Hindu University , Varanasi-221005, India
| | - Rahul Singh
- Department of Chemistry (Centre of Advanced Study), Institute of Science, Banaras Hindu University , Varanasi-221005, India
| | - Krishna Nand Singh
- Department of Chemistry (Centre of Advanced Study), Institute of Science, Banaras Hindu University , Varanasi-221005, India
| |
Collapse
|
16
|
Rad N, Mąkosza M. Simple Synthesis of Aryl p
-Nitroarylacetonitriles by Vicarious Nucleophilic Substitution with Carbanions of Protected Cyanohydrins. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701507] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nazar Rad
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Mieczysław Mąkosza
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| |
Collapse
|
17
|
Li SS, Zhou L, Wang L, Zhao H, Yu L, Xiao J. Organocatalytic C(sp 3)-H Functionalization via Carbocation-Initiated Cascade [1,5]-Hydride Transfer/Cyclization: Synthesis of Dihydrodibenzo[b,e]azepines. Org Lett 2017; 20:138-141. [PMID: 29239184 DOI: 10.1021/acs.orglett.7b03492] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Carbocation-initiated cascade [1,5]-hydride transfer/cyclization and dimerization reactions were developed to synthesize dihydrodibenzo[b,e]azepine and octahydrodipyrroloquinoline derivatives in high yields. These redox-neutral C(sp3)-H functionalization-involving cascade reactions feature transition-metal-free, high atom- and step-economy, and environmental friendliness with water as the sole byproduct.
Collapse
Affiliation(s)
- Shuai-Shuai Li
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao 266109, China
| | - Lan Zhou
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao 266109, China
| | - Liang Wang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao 266109, China
| | - Huaili Zhao
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao 266109, China
| | - Liping Yu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao 266109, China
| | - Jian Xiao
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao 266109, China
| |
Collapse
|
18
|
Xiao M, Ren D, Xu L, Li SS, Yu L, Xiao J. SN1-Type Alkylation of N-Heteroaromatics with Alcohols. Org Lett 2017; 19:5724-5727. [DOI: 10.1021/acs.orglett.7b02294] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mingyan Xiao
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Didi Ren
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Lubin Xu
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Shuai-Shuai Li
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Liping Yu
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Jian Xiao
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| |
Collapse
|