1
|
Sharma YB, Das D, Guru MM. Cu(II)-Catalyzed Aminocyclization of N-Propargyl Hydrazones to Substituted Pyrazolines. J Org Chem 2023; 88:16340-16351. [PMID: 37947756 DOI: 10.1021/acs.joc.3c01848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
An efficient route for the copper(II)-catalyzed synthesis of substituted pyrazolines from readily accessible N-propargyl hydrazones has been reported under open flask conditions via intramolecular C-N bond formation. N-acyl and N-tosyl-substituted pyrazolines have been prepared in moderate to excellent yields. Mechanistic investigations using NMR, high-resolution mass spectrometry (HRMS), and Hammett analyses suggest that the Cu(II) catalyst generally acts as a Lewis acid to form an iminium-ion intermediate via cyclization, which afforded the desired pyrazolines upon hydrolysis. One progesterone receptor antagonist has also been synthesized utilizing this reaction methodology.
Collapse
Affiliation(s)
- Yogesh Brijwashi Sharma
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research Kolkata, Kolkata 700054, India
| | - Debosmita Das
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research Kolkata, Kolkata 700054, India
| | - Murali Mohan Guru
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research Kolkata, Kolkata 700054, India
| |
Collapse
|
2
|
Cao G, Zeng G, Li K, Liu Y, Lin X, Yang G. 2D network structure of zinc(II) complex: A new easily accessible and efficient catalyst for the synthesis of pyrazoles. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6379] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gang‐Ming Cao
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, Jiangxi Province Key Laboratory of Synthetic Chemistry East China University of Technology Nanchang China
| | - Guo‐Dong Zeng
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, Jiangxi Province Key Laboratory of Synthetic Chemistry East China University of Technology Nanchang China
| | - Ke Li
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, Jiangxi Province Key Laboratory of Synthetic Chemistry East China University of Technology Nanchang China
| | - Yu‐Feng Liu
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, Jiangxi Province Key Laboratory of Synthetic Chemistry East China University of Technology Nanchang China
| | - Xiao‐Ling Lin
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, Jiangxi Province Key Laboratory of Synthetic Chemistry East China University of Technology Nanchang China
| | - Guo‐Ping Yang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, Jiangxi Province Key Laboratory of Synthetic Chemistry East China University of Technology Nanchang China
| |
Collapse
|
3
|
Othman IMM, Gad-Elkareem MAM, Amr AEGE, Al-Omar MA, Nossier ES, Elsayed EA. Novel heterocyclic hybrids of pyrazole targeting dihydrofolate reductase: design, biological evaluation and in silico studies. J Enzyme Inhib Med Chem 2021; 35:1491-1502. [PMID: 32668994 PMCID: PMC7470138 DOI: 10.1080/14756366.2020.1791842] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
A novel series of pyrazole analogues including hydrazones, pyrazolo[4,3-c]-pyridazines, pyrazolo[3,4-e][1,2,4]triazine and pyrazolo[3,4-d][1,2,3]triazoles was designed, synthesised and screened for their in vitro antimicrobial and DHFR inhibition activity. Compounds bearing benzenesulphonamide moiety incorporated with 3-methyl-5-oxo-1H-pyrazol-4(5H)-ylidene) hydrazine 3a or 6-amino-7-cyano-3-methyl-5H-pyrazolo[4,3-c]pyridazine 6a revealed excellent and broad spectrum antimicrobial activity comparable to ciprofloxacin and amphotericin B as positive antibiotic and antifungal controls, respectively. Furthermore, these derivatives proved to be the most active DHFR inhibitors with IC50 values 0.11 ± 1.05 and 0.09 ± 0.91 µM, in comparison with methotrexate (IC50 = 0.14 ± 1.25 µM). The in silico studies were done to calculate the drug-likeness and toxicity risk parameters of the newly synthesised derivatives. Additionally, the high potency of the pyrazole derivatives bearing sulphonamide against DHFR was confirmed with molecular docking and might be used as an optimum lead for further modification.
Collapse
Affiliation(s)
- Ismail M M Othman
- Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut, Egypt
| | - Mohamed A M Gad-Elkareem
- Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut, Egypt.,Department of Chemistry, Faculty of Science and Arts of Baljurashi, Albaha University, Saudi Arabia
| | - Abd El-Galil E Amr
- Pharmaceutical Chemistry Department, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.,Applied Organic Chemistry Department, National Research Centre, Giza, Egypt
| | - Mohamed A Al-Omar
- Pharmaceutical Chemistry Department, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Eman S Nossier
- Pharmaceutical Medicinal Chemistry Department, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Elsayed A Elsayed
- Zoology Department, Bioproducts Research Chair, Faculty of Science, King Saud University, Riyadh, Saudi Arabia.,Chemistry of Natural and Microbial Products Department, National Research Centre, Cairo, Egypt
| |
Collapse
|
4
|
Similarities and differences in the mechanisms alkyne and isonitrile transformations catalyzed by silver ions and nanoparticles. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2020.111258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
5
|
Heo N, Jung I, Kim DK, Han SH, Lee K, Lee PH. Sequential 1,3-N- to C- and 1,3-C- to C-Migration of Sulfonyl Groups through the Synthesis of 1,4-Diazepines from the Aza-[5 + 2] Cycloaddition of Indoloazomethine Ylides. Org Lett 2020; 22:6562-6567. [DOI: 10.1021/acs.orglett.0c02333] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Namrim Heo
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Ilyong Jung
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Dae Kyum Kim
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Sang Hoon Han
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Kooyeon Lee
- Department of Bio-Health Technology, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Phil Ho Lee
- The Korean Academy of Science and Technology, Seongnam 13630, Republic of Korea
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| |
Collapse
|
6
|
Neto JSS, Zeni G. Alkynes and Nitrogen Compounds: Useful Substrates for the Synthesis of Pyrazoles. Chemistry 2020; 26:8175-8189. [PMID: 31990413 DOI: 10.1002/chem.201905276] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 01/24/2020] [Indexed: 02/06/2023]
Abstract
The easy preparation and functionalization of pyrazoles associated with their innumerable biological properties have made this class of N-heterocycles very attractive for the development of new synthetic routes and applications. The cyclization reactions of alkynes and nitrogen compounds represent a powerful tool for the preparation of pyrazoles. This Review covers the recent advances in the preparation of pyrazoles by reacting alkynes and nitrogen compounds under transition-metal-catalyzed or metal-free conditions.
Collapse
Affiliation(s)
- Jose S S Neto
- Department of Biochemistry and Molecular Biology Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, 97105-900, Brazil
| | - Gilson Zeni
- Department of Biochemistry and Molecular Biology Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, 97105-900, Brazil
| |
Collapse
|
7
|
Li P, Zhu B, Xu Y, Zhou Z, Hu G, Yang F, Xu S, Zhang X. Palladium-catalyzed one-pot cycloaddition reactions of thioureas with 3H-indol-3-ones generated in situ from 2-alkynyl arylazides: rapid and efficient access to imidazoloindolines. Org Chem Front 2020. [DOI: 10.1039/d0qo00799d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
An efficient palladium-catalyzed one-pot synthesis of imidazoloindolines from 2-alkynyl arylazides under mild reaction conditions has been described.
Collapse
Affiliation(s)
- Ping Li
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Boyu Zhu
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Yao Xu
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Zhiqiang Zhou
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Guiwen Hu
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Fan Yang
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Shijie Xu
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Xiaoxiang Zhang
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| |
Collapse
|
8
|
Flynn AJ, Ford A, Maguire AR. Synthetic and mechanistic aspects of sulfonyl migrations. Org Biomol Chem 2020; 18:2549-2610. [DOI: 10.1039/c9ob02587a] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Sulfonyl migrations, frequently described as ‘unusual’ or ‘unexpected’, from the last 20 years, including 1,2-, 1,3-, 1,4-, 1,5-, 1,6- and 1,7-sulfonyl shifts, through either radical or polar processes, either inter- or intramolecularly are reviewed.
Collapse
Affiliation(s)
- Aaran J. Flynn
- School of Chemistry
- Analytical and Biological Research Facility
- Synthesis and Solid State Pharmaceutical Centre
- University College Cork
- Cork
| | - Alan Ford
- School of Chemistry
- Analytical and Biological Research Facility
- University College Cork
- Cork
- Ireland
| | - Anita R. Maguire
- School of Chemistry and School of Pharmacy
- Analytical and Biological Research Facility
- Synthesis and Solid State Pharmaceutical Centre
- University College Cork
- Cork
| |
Collapse
|
9
|
Synthesis of substituted dihydro-1H-pyrazoles and 1H-pyrazoles via formal [4+1] annulation of α-arylhydrazonoketones and dimethyl sulfonium methylides. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.01.061] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
10
|
Ansari AJ, Wani AA, Maurya AK, Verma S, Agnihotri VK, Sharon A, Bharatam PV, Sawant DM. An unprecedented N- to C-sulfonyl migration in the reaction of azomethine amine and allenoates: access to arylsulfonylmethyl substituted pyrazolo[1,5-c]quinazoline and mechanistic studies. Chem Commun (Camb) 2019; 55:14825-14828. [DOI: 10.1039/c9cc06751e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A serendipitous discovery of [1,3]-sulfonyl migration has been made in the two-component reaction of azomethine imine and allenoates.
Collapse
Affiliation(s)
- Arshad J. Ansari
- School of Chemical Sciences and Pharmacy
- Central University of Rajasthan
- Ajmer-305817 (Raj)
- India
| | - Aabid Abdullah Wani
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research
- NIPER
- S.A.S. Nagar (Mohali) – 160062
- India
| | - Antim K. Maurya
- Natural Product Chemistry and Process Development Division
- CSIR-IHBT
- Palampur
- India
| | - Sarika Verma
- Department of Chemistry
- Birla Institute of Technology
- Ranchi
- India
| | - Vijai K. Agnihotri
- Natural Product Chemistry and Process Development Division
- CSIR-IHBT
- Palampur
- India
| | - Ashoke Sharon
- Department of Chemistry
- Birla Institute of Technology
- Ranchi
- India
| | - Prasad V. Bharatam
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research
- NIPER
- S.A.S. Nagar (Mohali) – 160062
- India
| | - Devesh M. Sawant
- School of Chemical Sciences and Pharmacy
- Central University of Rajasthan
- Ajmer-305817 (Raj)
- India
| |
Collapse
|
11
|
Qi Z, Jiang Y, Wang Y, Yan R. tert-Butyl Nitrite Promoted Oxidative Intermolecular Sulfonamination of Alkynes to Synthesize Substituted Sulfonyl Pyrroles from the Alkynylamines and Sulfinic Acids. J Org Chem 2018; 83:8636-8644. [DOI: 10.1021/acs.joc.8b00741] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhenjie Qi
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 730000, Gansu China
| | - Yong Jiang
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 400000 China
| | - Yanyan Wang
- Jinchuan Advanced Materials Technology Co., Ltd. Lanzhou, 730000, Gansu China
| | - Rulong Yan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 730000, Gansu China
| |
Collapse
|
12
|
Stukalov A, Suslonov VV, Kuznetsov MA. Thermal Ring Expansion of 2-Sulfonylimidoyl-1-phthalimidoaziridines into N
-Sulfonylimidazoles. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701806] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Aleksandr Stukalov
- Institute of Chemistry; Saint Petersburg State University; Universitetskii pr. 26 198504 Saint Petersburg Russia
| | - Vitalii V. Suslonov
- Center for X-ray Diffraction Studies; Saint Petersburg State University; Universitetskii pr. 26 198504 Saint Petersburg Russia
| | - Mikhail A. Kuznetsov
- Institute of Chemistry; Saint Petersburg State University; Universitetskii pr. 26 198504 Saint Petersburg Russia
| |
Collapse
|
13
|
The crystal structure of ( E)- N-benzyl- N′-benzylidene-4-methylbenzenesulfonohydrazide, C 21H 20N 2O 2S. Z KRIST-NEW CRYST ST 2018. [DOI: 10.1515/ncrs-2017-0256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C21H20N2O2S, monoclinic, P21/c (no. 14), a = 19.436(3) Å, b = 6.1396(6) Å, c = 16.362(3) Å, β = 108.100(16)°, V = 1855.8(5) Å3, Z = 4, R
gt(F) = 0.0502, wR
ref(F
2) = 0.1224, T = 100 K.
Collapse
|
14
|
Yang Y, Hu ZL, Li RH, Chen YH, Zhan ZP. Pyrazole synthesis via a cascade Sonogashira coupling/cyclization of N-propargyl sulfonylhydrazones. Org Biomol Chem 2018; 16:197-201. [DOI: 10.1039/c7ob02576a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient approach for the preparation of pyrazoles via a Pd(ii)/Cu(i)-catalyzed Sonogashira coupling/cyclization of N-propargyl sulfonylhydrazones has been established.
Collapse
Affiliation(s)
- Ying Yang
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- People's Republic of China
| | - Zi-Lin Hu
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- People's Republic of China
| | - Ren-Hao Li
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- People's Republic of China
| | - Yi-Hui Chen
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- People's Republic of China
| | - Zhuang-Ping Zhan
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- People's Republic of China
| |
Collapse
|
15
|
Wang B, Jin S, Sun S, Cheng J. Radical rearrangement of N-sulfonyl-N-aryl propynamides: proceeding with homolytic N–SO2 bond cleavage and 6-endo-dig cyclization toward 3-sulfonyl-2(1H)-quinolinones. Org Chem Front 2018. [DOI: 10.1039/c7qo01048f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A di-tert-butyl peroxide-promoted radical rearrangement of N-sulfonyl-N-aryl propynamides has been developed, giving 2-sulfonyl-3-aryl-2(1H)-quinolinones in moderate to good yields.
Collapse
Affiliation(s)
- Bingbing Wang
- School of Petrochemical Engineering
- and Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- Changzhou University
- Changzhou 213164
- P. R. China
| | - Shengnan Jin
- School of Petrochemical Engineering
- and Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- Changzhou University
- Changzhou 213164
- P. R. China
| | - Song Sun
- School of Petrochemical Engineering
- and Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- Changzhou University
- Changzhou 213164
- P. R. China
| | - Jiang Cheng
- School of Petrochemical Engineering
- and Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- Changzhou University
- Changzhou 213164
- P. R. China
| |
Collapse
|
16
|
Zhang X, Li P, Lyu C, Yong W, Li J, Pan X, Zhu X, Rao W. Palladium-Catalyzed One-Pot Synthesis of C2-Quaternary Indolin-3-ones via 1H
-indole-3-sulfonates Generated in Situ from 2-Alkynyl Arylazides and Sulfonic Acids. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700838] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xiaoxiang Zhang
- Jiangsu key lab of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering; Nanjing Forestry University; Nanjing 210037 People's Republic of China
| | - Ping Li
- Jiangsu key lab of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering; Nanjing Forestry University; Nanjing 210037 People's Republic of China
| | - Chang Lyu
- Jiangsu key lab of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering; Nanjing Forestry University; Nanjing 210037 People's Republic of China
| | - Wanxiong Yong
- Jiangsu key lab of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering; Nanjing Forestry University; Nanjing 210037 People's Republic of China
| | - Jing Li
- Jiangsu key lab of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering; Nanjing Forestry University; Nanjing 210037 People's Republic of China
| | - Xinyu Pan
- Department of Chemistry; Tsinghua University; Beijing 100084 People's Republic of China
| | - Xinbao Zhu
- Jiangsu key lab of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering; Nanjing Forestry University; Nanjing 210037 People's Republic of China
| | - Weidong Rao
- Jiangsu key lab of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering; Nanjing Forestry University; Nanjing 210037 People's Republic of China
| |
Collapse
|
17
|
Huang A, Wo K, Lee SYC, Kneitschel N, Chang J, Zhu K, Mello T, Bancroft L, Norman NJ, Zheng SL. Regioselective Synthesis, NMR, and Crystallographic Analysis of N1-Substituted Pyrazoles. J Org Chem 2017; 82:8864-8872. [PMID: 28718639 DOI: 10.1021/acs.joc.7b01006] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A systematic study of the N-substitution reactions of 3-substituted pyrazoles under basic conditions has been undertaken. Regioselective N1-alkylation, -arylation, and -heteroarylation of 3-substituted pyrazoles have been achieved using K2CO3-DMSO. The regioselectivity is justified by the DFT calculations at the B3LYP/6-31G**(d) level. A consistent steric effect on chemical shift has been observed for N-alkyl pyrazole analogues. Twenty-five X-ray crystallographic structures have been obtained to confirm the regiochemistry of the major products.
Collapse
Affiliation(s)
- Adrian Huang
- Department of Chemistry, Wellesley College , 106 Central Street, Wellesley, Massachusetts 02481, United States
| | - Kellie Wo
- Department of Chemistry, Wellesley College , 106 Central Street, Wellesley, Massachusetts 02481, United States
| | - So Yeun Christine Lee
- Department of Chemistry, Wellesley College , 106 Central Street, Wellesley, Massachusetts 02481, United States
| | - Nika Kneitschel
- Department of Chemistry, Wellesley College , 106 Central Street, Wellesley, Massachusetts 02481, United States
| | - Jennifer Chang
- Department of Chemistry, Wellesley College , 106 Central Street, Wellesley, Massachusetts 02481, United States
| | - Kathleen Zhu
- Department of Chemistry, Wellesley College , 106 Central Street, Wellesley, Massachusetts 02481, United States
| | - Tatsiana Mello
- Department of Chemistry, Wellesley College , 106 Central Street, Wellesley, Massachusetts 02481, United States
| | - Laura Bancroft
- Department of Chemistry, Wellesley College , 106 Central Street, Wellesley, Massachusetts 02481, United States
| | - Natalie J Norman
- Department of Chemistry, Wellesley College , 106 Central Street, Wellesley, Massachusetts 02481, United States
| | - Shao-Liang Zheng
- Department of Chemistry and Chemical Biology, Harvard University , 12 Oxford Street, Bauer B06, Cambridge, Massachusetts 02138, United States
| |
Collapse
|
18
|
Cheng B, Xu J. Mechanistic insight into the thermal 1,3-chlorine migrations of N-chloroacetanilides under neutral conditions. PHOSPHORUS SULFUR 2017. [DOI: 10.1080/10426507.2016.1268137] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Baoxiang Cheng
- State Key Laboratory of Chemical Engineering Resource, Department of Organic Chemistry, Faculty of Science, Beijing University of Chemical Technology, Beijing, P. R. China
| | - Jiaxi Xu
- State Key Laboratory of Chemical Engineering Resource, Department of Organic Chemistry, Faculty of Science, Beijing University of Chemical Technology, Beijing, P. R. China
| |
Collapse
|
19
|
Tang HT, Zeng JH, Chen JJ, Zhou YB, Li RH, Zhan ZP. Synthesis of pyrazolo[5,1-a]isoquinolines through copper-catalyzed regioselective bicyclization of N-propargylic sulfonylhydrazones. Org Chem Front 2017. [DOI: 10.1039/c7qo00249a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An expeditious strategy for the synthesis of pyrazolo[5,1-a]isoquinolines through copper(ii)-catalyzed regioselective bicyclization of N-propargylic sulfonylhydrazones has been developed.
Collapse
Affiliation(s)
- Hai-Tao Tang
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- People's Republic of China
| | - Jia-Hao Zeng
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- People's Republic of China
| | - Jun-Jia Chen
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- People's Republic of China
| | - Yun-Bing Zhou
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- People's Republic of China
| | - Ren-Hao Li
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- People's Republic of China
| | - Zhuang-Ping Zhan
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- People's Republic of China
| |
Collapse
|
20
|
Ahamad S, Kant R, Mohanan K. Three-Component Domino HWE Olefination/1,3-Dipolar Cycloaddition/Oxidation Strategy for the Rapid Synthesis of Trisubstituted Pyrazoles. ChemistrySelect 2016. [DOI: 10.1002/slct.201601113] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Shakir Ahamad
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
| | - Ruchir Kant
- Molecular and Structural Biology; CSIR-Central Drug Research Institute; Lucknow 226031 India
| | - Kishor Mohanan
- Medicinal and Process Chemistry Division; CSIR-Central Drug Research Institute; Lucknow 226031 India
| |
Collapse
|
21
|
Zhang Q, Yu M, Yuan J, Zhang R, Liang Y, Tian J, Dong D. Formal [4 + 1] Annulation of α-Arylhydrazonoketones and Dimethylsulfoxonium Methylide: One-pot Synthesis of Substituted Pyrazoles and Dihydropyrazoles. J Org Chem 2016; 81:6036-41. [DOI: 10.1021/acs.joc.6b01127] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Qian Zhang
- Key
Laboratory of Synthetic Rubber, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Mangfei Yu
- Key
Laboratory of Synthetic Rubber, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Jingwen Yuan
- Key
Laboratory of Synthetic Rubber, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Rui Zhang
- Key
Laboratory of Synthetic Rubber, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Yongjiu Liang
- Key
Laboratory of Synthetic Rubber, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Jiamei Tian
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Dewen Dong
- Key
Laboratory of Synthetic Rubber, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| |
Collapse
|
22
|
Mechanistic insight into thermal 1,3- and 1,5-sulfonyl migrations of N-arenesulfonylphenothiazines and N-arenesulfonylphenoxazines. MONATSHEFTE FUR CHEMIE 2016. [DOI: 10.1007/s00706-016-1661-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
23
|
Bharathiraja G, Sengoden M, Kannan M, Punniyamurthy T. Expedient synthesis of tetrasubstituted pyrroles via a copper-catalyzed cascade inter-/intramolecular cyclization of 1,3-enynes carry a nitro group with amines. Org Biomol Chem 2015; 13:2786-92. [DOI: 10.1039/c4ob02508c] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Various tetrasubstituted pyrroles/pyrazoles have been prepared from nitro-substituted 1,3-enynes with aromatic amines/hydrazinesviaa copper-catalyzed cascade aza-Michael addition, cyclization and aromatization.
Collapse
Affiliation(s)
- Ganesan Bharathiraja
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati 781039
- India
| | - Mani Sengoden
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati 781039
- India
| | - Masanam Kannan
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati 781039
- India
| | | |
Collapse
|
24
|
Bassaco MM, Fortes MP, Kaufman TS, Silveira CC. Metal-free synthesis of 3,5-disubstituted 1H- and 1-aryl-1H-pyrazoles from 1,3-diyne-indole derivatives employing two successive hydroaminations. RSC Adv 2015. [DOI: 10.1039/c4ra16439c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The uncatalyzed synthesis of 3,5-disubstituted 1H- and 1-aryl-1H-pyrazoles derived from 1,3-diyne indoles was successfully carried out in PEG 400. The scope and limitations of the reaction were studied.
Collapse
Affiliation(s)
- Mariana M. Bassaco
- Departamento de Química
- Universidade Federal de Santa Maria
- Santa Maria
- Brazil
| | - Margiani P. Fortes
- Departamento de Química
- Universidade Federal de Santa Maria
- Santa Maria
- Brazil
| | | | | |
Collapse
|
25
|
Yao L, Wang CJ. AsymmetricN-Allylic Alkylation of Hydrazones with Morita-Baylis-Hillman Carbonates. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400790] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
26
|
Chang MY, Cheng YC, Lu YJ. One-Pot Access to Sulfonylmethyl Arylpyrroles via the Domino Aerobic Wacker-Type Aminocyclization/1,4-Sulfonyl Migration. Org Lett 2014; 16:6252-5. [DOI: 10.1021/ol5032238] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Meng-Yang Chang
- Department of Medicinal and
Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yu-Chieh Cheng
- Department of Medicinal and
Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yi-Ju Lu
- Department of Medicinal and
Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| |
Collapse
|
27
|
Wang Y, Wei D, Zhang W, Wang Y, Zhu Y, Jia Y, Tang M. A theoretical study on the mechanisms of the reactions between 1,3-dialkynes and ammonia derivatives for the formation of five-membered N-heterocycles. Org Biomol Chem 2014; 12:7503-14. [DOI: 10.1039/c4ob01015a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
28
|
Chen B, Zhu C, Tang Y, Ma S. Copper-mediated pyrazole synthesis from 2,3-allenoates or 2-alkynoates, amines and nitriles. Chem Commun (Camb) 2014; 50:7677-9. [DOI: 10.1039/c4cc02856b] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
29
|
Ananthnag GS, Adhikari A, Balakrishna MS. Iron-catalyzed aerobic oxidative aromatization of 1,3,5-trisubstituted pyrazolines. CATAL COMMUN 2014. [DOI: 10.1016/j.catcom.2013.09.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
30
|
Hashemi SA. One-Pot Synthesis of N-Alkyl Sulfonyl Hydrazones by Dialkyl Acetylenedicarboxylate-Mediated Reaction of Trialkylphosphites with Sulfonyl Hydrazones. SYNTHETIC COMMUN 2013. [DOI: 10.1080/00397911.2013.786088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
31
|
Wen J, Dong L, Yang L, Jiang T, Hu S, Yang TZ, Wang XL. A base-mediated three-component coupling reaction for the synthesis of phosphorohydrazones. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.09.077] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
32
|
Dadiboyena S, Hamme AT. Environmentally Benign Lewis Acid Promoted [2+3]-Dipolar Cycloaddition Reactions of Nitrile Imines with Alkenes in Water. European J Org Chem 2013; 2013:7567-7574. [PMID: 24659908 PMCID: PMC3957226 DOI: 10.1002/ejoc.201300840] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Indexed: 12/19/2022]
Abstract
Mild and environmentally benign Lewis acid promoted 1,3-dipolar cycloaddition reactions of α-hydrazonyl chlorides with alkenes in water are reported. These α-hydrazonyl chlorides, in the presence of Lewis acids, generate nitrile imines in situ which react with dipolarophiles to furnish the corresponding cycloaddition products. In many cases, the required times for the completion of the Lewis acid promoted 1,3-dipolar cycloaddition reactions in water were comparable to the equivalent reactions performed in an organic solvent. Analogous tetrahexylammonium chloride promoted 1,3-dipolar cycloaddition reactions were also performed. The comparison of reaction times and cycloadduct yields for the aforementioned 1,3-dipolar reactions in aqueous and organic media as well as the proposed role of the Lewis acid in the 1,3-dipolar cycloaddition reaction are described.
Collapse
Affiliation(s)
- Sureshbabu Dadiboyena
- Department of Chemistry and Biochemistry, College of Science, Engineering and Technology, 1400 J. R. Lynch Street, Jackson State University, Jackson MS 39217 USA, Fax: +1(601)-979-3674 (Prof. A. T. Hamme II) Homepage: http://www.jsums.edu/chemistry/ashton-t-hamme-ii/
| | - Ashton T. Hamme
- Department of Chemistry and Biochemistry, College of Science, Engineering and Technology, 1400 J. R. Lynch Street, Jackson State University, Jackson MS 39217 USA, Fax: +1(601)-979-3674 (Prof. A. T. Hamme II) Homepage: http://www.jsums.edu/chemistry/ashton-t-hamme-ii/
| |
Collapse
|
33
|
Kong Y, Zhang W, Tang M, Wang H. N-Alkylation of tosylhydrazones in the presence of triphenylphosphine. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.05.131] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
34
|
Zhu Y, Lu WT, Sun HC, Zhan ZP. Lewis Base Catalyzed Synthesis of Multisubstituted 4-Sulfonyl-1H-Pyrazole Involving a Novel 1,3-Sulfonyl Shift. Org Lett 2013; 15:4146-9. [DOI: 10.1021/ol401818m] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yu Zhu
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| | - Wen-Ting Lu
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| | - Hong-Chao Sun
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| | - Zhuang-Ping Zhan
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| |
Collapse
|
35
|
Iodine-catalyzed N-alkylation of tosylhydrazones with benzylic alcohols. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2013. [DOI: 10.1007/s13738-012-0205-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
36
|
Teo WT, Rao W, Koh MJ, Chan PWH. Gold-Catalyzed Domino Aminocyclization/1,3-Sulfonyl Migration of N-Substituted N-Sulfonyl-aminobut-3-yn-2-ols to 1-Substituted 3-Sulfonyl-1H-pyrroles. J Org Chem 2013; 78:7508-17. [DOI: 10.1021/jo401083m] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Wan Teng Teo
- Division of Chemistry and
Biological Chemistry, School
of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Weidong Rao
- Division of Chemistry and
Biological Chemistry, School
of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Ming Joo Koh
- Division of Chemistry and
Biological Chemistry, School
of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Philip Wai Hong Chan
- Division of Chemistry and
Biological Chemistry, School
of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| |
Collapse
|
37
|
Hu Y, Yi R, Wu F, Wan B. Synthesis of Functionalized Oxazoles via Silver-Catalyzed Cyclization of Propargylamides and Allenylamides. J Org Chem 2013; 78:7714-26. [DOI: 10.1021/jo401330t] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Yancheng Hu
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Ruxia Yi
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Fan Wu
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Boshun Wan
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| |
Collapse
|
38
|
Kumar SV, Yadav SK, Raghava B, Saraiah B, Ila H, Rangappa KS, Hazra A. Cyclocondensation of arylhydrazines with 1,3-bis(het)arylmonothio-1,3-diketones and 1,3-bis(het)aryl-3-(methylthio)-2-propenones: synthesis of 1-aryl-3,5-bis(het)arylpyrazoles with complementary regioselectivity. J Org Chem 2013; 78:4960-73. [PMID: 23607788 DOI: 10.1021/jo400599e] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Two efficient highly regioselective routes for the synthesis of unsymmetrically substituted 1-aryl-3,5-bis(het)arylpyrazoles with complementary regioselectivity starting from active methylene ketones have been reported. In the first protocol, the newly synthesized 1,3-bis(het)aryl-monothio-1,3-diketone precursors (prepared by condensation of active methylene ketones with het(aryl) dithioesters in the presence of sodium hydride) were reacted with arylhydrazines in refluxing ethanol under neutral conditions, furnishing 1-aryl-3,5-bis(het)arylpyrazoles 7, in which the het(aryl) moiety attached to the thiocarbonyl group of monothio-1,3-diketones is installed at the 3-position. In the second method, the corresponding 3-(methylthio)-1,3-bis(het)aryl-2-propenones (prepared in situ by base-induced alkylation of 1,3-monothiodiketones) were condensed with arylhydrazines in the presence of potassium tert-butoxide in refluxing tert-butyl alcohol, yielding 1-aryl-3,5-bis(het)arylpyrazoles 9 with complementary regioselectivity (method A). The efficiency of this protocol was further improved by developing a one-pot, three-component procedure for the synthesis of pyrazoles 9, directly from active methylene ketones, by reacting in situ generated 3-(methylthio)-1,3-bis(het)aryl-2-propenones with arylhydrazines in the presence of sodium hydride (instead of potassium tert-butoxide as base). The structures and regiochemistry of newly synthesized pyrazoles were confirmed from their spectral and analytical data along with X-ray crystallographic data of three pairs of regioisomers.
Collapse
Affiliation(s)
- S Vijay Kumar
- New Chemistry unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore-560064, India
| | | | | | | | | | | | | |
Collapse
|
39
|
Yu X, Xin X, Wan B, Li X. Base-Catalyzed Cyclization of N-Sulfonyl Propargylamides to Sulfonylmethyl-Substituted Oxazoles via Sulfonyl Migration. J Org Chem 2013; 78:4895-904. [DOI: 10.1021/jo4004635] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Xinzhang Yu
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian
116023, China
| | - Xiaoyi Xin
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian
116023, China
| | - Boshun Wan
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian
116023, China
| | - Xingwei Li
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian
116023, China
| |
Collapse
|
40
|
Sha Q, Wei Y. Base and solvent mediated decomposition of tosylhydrazones: highly selective synthesis of N-alkyl substituted hydrazones, dialkylidenehydrazines, and oximes. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.03.055] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
41
|
Zhu Y, Tang HT, Zhan ZP. Copper(I)-Catalyzed Stereoselective Synthesis of (1E,3E)-2- Sulfonyl-1,3-dienes fromN-Propargylic Sulfonohydrazones. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300126] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
42
|
Liu JB, Yan H, Lu G. N-Alkylation of tosylhydrazones via a metal-free reductive coupling procedure. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2012.11.124] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
43
|
Wang WL, Feng YL, Gao WQ, Luo X, Deng WP. A highly efficient BF3·Et2O-catalysed intramolecular [3+2] cycloaddition for the synthesis of 3,4-dihydrobenzopyrano[3,4-c]pyrazoles. RSC Adv 2013. [DOI: 10.1039/c2ra22025c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
44
|
Yoshimatsu M, Ohta K, Takahashi N. Propargyl Hydrazides: Synthesis and Conversion Into Pyrazoles Through Hydroamination. Chemistry 2012; 18:15602-6. [DOI: 10.1002/chem.201202828] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Revised: 10/05/2012] [Indexed: 11/12/2022]
|
45
|
Jia-Jie W, Zhu Y, Zhan ZP. The Synthesis of Aromatic Heterocycles from Propargylic Compounds. ASIAN J ORG CHEM 2012. [DOI: 10.1002/ajoc.201200053] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
46
|
Zhang Z, Shi M. Silver(I)-catalyzed tandem 1,3-acyloxy migration/Mannich-type addition/elimination of the sulfonyl group of N-sulfonylhydrazone-propargylic esters to 5,6-dihydropyridazin-4-one derivatives. Chemistry 2012; 18:3654-8. [PMID: 22354865 DOI: 10.1002/chem.201103404] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2011] [Indexed: 11/11/2022]
Abstract
The addition of nucleophiles to C=N bonds offers a highly efficient synthetic strategy for accessing nitrogen-containing molecules.1 Among the well-developed addition reactions, such as the highly efficient Mannich reaction, various C-H bond-activated compounds including carboxylic acid derivatives, nitroalkanes, and terminal alkynes have been applied as nucleophiles to achieve different classes of amines.2 However, employing new nucleophiles without activated C-H bonds, such as internal alkynes and allenic esters are limited when using metal catalysts.3 Herein, we wish to report a new addition of allenic esters to C=N bonds initiated by a silver-catalyzed 1,3-migration of propargylic esters.
Collapse
Affiliation(s)
- Zhen Zhang
- Laboratory for Advanced Materials & Institute of Fine Chemicals, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, PR China
| | | |
Collapse
|
47
|
Zhang DH, Zhang Z, Shi M. Transition metal-catalyzed carbocyclization of nitrogen and oxygen-tethered 1,n-enynes and diynes: synthesis of five or six-membered heterocyclic compounds. Chem Commun (Camb) 2012; 48:10271-9. [DOI: 10.1039/c2cc34739c] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
48
|
Suzuki Y, Naoe S, Oishi S, Fujii N, Ohno H. Gold-catalyzed three-component annulation: efficient synthesis of highly functionalized dihydropyrazoles from alkynes, hydrazines, and aldehydes or ketones. Org Lett 2011; 14:326-9. [PMID: 22176630 DOI: 10.1021/ol203072u] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Polysubstituted dihydropyrazoles were directly obtained by a gold-catalyzed three-component annulation. This reaction consists of a Mannich-type coupling of alkynes with N,N'-disubstituted hydrazines and aldehydes/ketones followed by intramolecular hydroamination. Cascade cyclization using 1,2-dialkynylbenzene derivatives as the alkyne component was also performed producing fused tricyclic dihydropyrazoles in good yields.
Collapse
Affiliation(s)
- Yamato Suzuki
- Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto 606-8501, Japan
| | | | | | | | | |
Collapse
|
49
|
Zora M, Kivrak A. Synthesis of Pyrazoles via CuI-Mediated Electrophilic Cyclizations of α,β-Alkynic Hydrazones. J Org Chem 2011; 76:9379-90. [DOI: 10.1021/jo201685p] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Metin Zora
- Department of Chemistry, Middle East Technical University, 06531 Ankara, Turkey
| | - Arif Kivrak
- Department of Chemistry, Middle East Technical University, 06531 Ankara, Turkey
| |
Collapse
|
50
|
Fustero S, Sánchez-Roselló M, Barrio P, Simón-Fuentes A. From 2000 to mid-2010: a fruitful decade for the synthesis of pyrazoles. Chem Rev 2011; 111:6984-7034. [PMID: 21806021 DOI: 10.1021/cr2000459] [Citation(s) in RCA: 794] [Impact Index Per Article: 61.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Santos Fustero
- Departamento de Química Orgánica, Universidad de Valencia, Spain.
| | | | | | | |
Collapse
|