1
|
Lv J, Hua R. LiO tBu-Promoted Intramolecular 1,3-Dipolar Cycloaddition of the 2'-Alkynyl-biaryl-2-aldehyde N-Tosylhydrazones Approach to 3-Substituted 1 H-Dibenzo[ e, g]indazoles. Molecules 2023; 28:8061. [PMID: 38138554 PMCID: PMC10745680 DOI: 10.3390/molecules28248061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/22/2023] [Accepted: 11/23/2023] [Indexed: 12/24/2023] Open
Abstract
A two-step, one-pot synthesis of 3-substituted 1H-dibenzo[e,g]indazoles in good to high yields via a LiOtBu-promoted intramolecular 1,3-dipolar cyclization of 2'-alkynyl-biaryl-2-aldehyde N-tosylhydrazones was developed. The N-Ts-hydrazones used were prepared in situ via the reactions of 2'-alkynyl-biaryl-2-aldehydes and TsNHNH2(p-methylbenzenesulfonohydrazide). Two types of signals related to the hydrogen bonds, forming in several products, were observed in the 1H NMR spectra recorded in DMSO-d6, assigned to N-H bonds in their dimeric species of product and tautomer.
Collapse
Affiliation(s)
- Jiaying Lv
- Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, China;
| | - Ruimao Hua
- Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, China;
- State Key Laboratory of Chemistry and Utilization of Carbon-Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, China
| |
Collapse
|
2
|
Justaud F, Hachem A, Grée R. Recent Developments in the Meyer‐Schuster Rearrangement. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001494] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Frédéric Justaud
- Univ Rennes CNRS (Institut for Chemical Sciences in Rennes), UMR 6226 35000 Rennes France
| | - Ali Hachem
- Lebanese University Faculty of Sciences (I) Laboratory for Medidinal Chemistry and Natural Products and PRASE-EDST Hadath Lebanon
| | - René Grée
- Univ Rennes CNRS (Institut for Chemical Sciences in Rennes), UMR 6226 35000 Rennes France
| |
Collapse
|
3
|
Rana S, Biswas JP, Paul S, Paik A, Maiti D. Organic synthesis with the most abundant transition metal–iron: from rust to multitasking catalysts. Chem Soc Rev 2021; 50:243-472. [DOI: 10.1039/d0cs00688b] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The promising aspects of iron in synthetic chemistry are being explored for three-four decades as a green and eco-friendly alternative to late transition metals. This present review unveils these rich iron-chemistry towards different transformations.
Collapse
Affiliation(s)
- Sujoy Rana
- Department of Chemistry
- University of North Bengal
- Darjeeling
- India
| | | | - Sabarni Paul
- Department of Chemistry
- University of North Bengal
- Darjeeling
- India
| | - Aniruddha Paik
- Department of Chemistry
- University of North Bengal
- Darjeeling
- India
| | - Debabrata Maiti
- Department of Chemistry
- IIT Bombay
- Mumbai-400076
- India
- Tokyo Tech World Research Hub Initiative (WRHI)
| |
Collapse
|
4
|
Zou LH, Fan M, Wang L, Liu C. Hetero diacylation of 1,1-diborylalkanes: Practical synthesis of 1,3-diketones. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.12.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
5
|
Metal-free and highly regioselective synthesis of N-heteroaryl substituted pyrazoles from α,β-unsaturated N-tosylhydrazones and heteroaryl chlorides. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.07.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
6
|
Sthalam VK, Singh AK, Pabbaraja S. An Integrated Continuous Flow Micro-Total Ultrafast Process System (μ-TUFPS) for the Synthesis of Celecoxib and Other Cyclooxygenase Inhibitors. Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.9b00212] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Vinay Kumar Sthalam
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Human Resource Development Centre (CSIR-HRDC) Campus, Ghaziabad 201002, Uttar Pradesh, India
| | - Ajay K. Singh
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Srihari Pabbaraja
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Human Resource Development Centre (CSIR-HRDC) Campus, Ghaziabad 201002, Uttar Pradesh, India
| |
Collapse
|
7
|
Affiliation(s)
- Hongwei Qian
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
| | - Dayun Huang
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
| | - Yicheng Bi
- Qingdao University of Science & TechnologySifang Campus 53 Zhengzhou Road Qingdao Shandong 266042 People's Republic of China
| | - Guobing Yan
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
| |
Collapse
|
8
|
Fukumoto Y, Okazaki N, Chatani N. A New Class of Redox Isomerization of N-Alkylpropargylamines into N-Alkylideneallylamines Catalyzed by a ReBr(CO) 5/Amine N-oxide System. Org Lett 2019; 21:1760-1765. [PMID: 30816717 DOI: 10.1021/acs.orglett.9b00325] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Redox isomerization reaction wherein N-alkylpropargylamines are converted into N-alkylideneallylamines in the presence of rhenium(I) complexes as catalysts is described. Among the additives tested, certain pyridine N-oxides and tertiary amine N-oxides were effective for the reaction to proceed, and in particular, the use of 2,6-lutidine N-oxides gave the best results. The choice of a diphenylmethyl group as a substituent on the nitrogen atom was key to the success of the reaction, allowing it to reach completion.
Collapse
Affiliation(s)
- Yoshiya Fukumoto
- Department of Applied Chemistry, Faculty of Engineering , Osaka University , Suita , Osaka 565-0871 , Japan
| | - Natsuki Okazaki
- Department of Applied Chemistry, Faculty of Engineering , Osaka University , Suita , Osaka 565-0871 , Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering , Osaka University , Suita , Osaka 565-0871 , Japan
| |
Collapse
|
9
|
Kumar A, Rao MLN. Pot-economic synthesis of diarylpyrazoles and pyrimidines involving Pd-catalyzed cross-coupling of 3-trifloxychromone and triarylbismuth. J CHEM SCI 2018. [DOI: 10.1007/s12039-018-1565-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
10
|
Vasin VA, Popkova YA, Bezrukova YV, Razin VV, Somov NV. Thermal Rearrangements of 3H- and 4H-Pyrazoles Prepared by Reactions of 9-Diazofluoren with Methyl Tetrolate and Methyl 3-Phenylpropiolate. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2018. [DOI: 10.1134/s1070428018080122] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
11
|
Vasin VA, Razin VV, Bezrukova EV, Popkova YA, Somov NV. Rearrangements of 3H-Pyrazoles—Adducts of Dimethyl Acetylenedicarboxylate with Diphenyldiazomethane and 9-Diazofluorene. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2018. [DOI: 10.1134/s1070428018060118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
12
|
Kuleshova O, Khilya O, Volovenko Y, Mallet-Ladeira S, Dyakonenko V, Gras E. Expedited Route to Fully Substituted Amino-Pyrazole Building Blocks and Their Further Transformations. ACS OMEGA 2017; 2:8911-8927. [PMID: 31457419 PMCID: PMC6645537 DOI: 10.1021/acsomega.7b01419] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 11/23/2017] [Indexed: 06/10/2023]
Abstract
We report here an efficient and easily reproducible two-step approach to heterocycle-substituted amino-pyrazoles from heterocyclic acetonitriles and their unprecedented subsequent transformations to fully substituted pyrazoles. Such transformations include regioselective derivatization from polyamino derivatives, formation of tetracyclic compounds in up to 45% overall yield, and deaminative transformations through diazotization, followed by arylation through Suzuki-Miyaura cross-coupling and C-H activation, providing arylated pyrazoles in up to 71% yield over four steps. This strategy allows the swift introduction of significant molecular complexity to a range of scaffolds.
Collapse
Affiliation(s)
- Olena Kuleshova
- Laboratoire
de Chimie de Coordination, Centre National
de la Recherche Scientifique, UPR 8241, Université Fédérale
Toulouse Midi-Pyrénées, 205, Route de Narbonne, Toulouse F-31077, France
- Chemistry
Department, Taras Shevchenko National University
of Kyiv, 64/13 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Olga Khilya
- Chemistry
Department, Taras Shevchenko National University
of Kyiv, 64/13 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Yulian Volovenko
- Chemistry
Department, Taras Shevchenko National University
of Kyiv, 64/13 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Sonia Mallet-Ladeira
- Laboratoire
de Chimie de Coordination, Centre National
de la Recherche Scientifique, UPR 8241, Université Fédérale
Toulouse Midi-Pyrénées, 205, Route de Narbonne, Toulouse F-31077, France
| | - Viktoriya Dyakonenko
- SSI
“Institute for Single Crystals” National Academy of
Science of Ukraine, 60
Nauky Avenue, Kharkiv 61001, Ukraine
| | - Emmanuel Gras
- Laboratoire
de Chimie de Coordination, Centre National
de la Recherche Scientifique, UPR 8241, Université Fédérale
Toulouse Midi-Pyrénées, 205, Route de Narbonne, Toulouse F-31077, France
| |
Collapse
|
13
|
Tang L, Ma M, Zhang Q, Luo H, Wang T, Chai Y. Metal-Free Synthesis of Pyrazoles from 1,3-Diarylpropenes and Hydrazines via
Multiple Inter-/Intramolecular C-H Aminations. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700196] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Li Tang
- School of Chemistry and Chemical Engineering; Shaanxi Normal University, Xi'an; Shaanxi 710119 People's Republic of China
| | - Minyan Ma
- School of Chemistry and Chemical Engineering; Shaanxi Normal University, Xi'an; Shaanxi 710119 People's Republic of China
| | - Qi Zhang
- School of Chemistry and Chemical Engineering; Shaanxi Normal University, Xi'an; Shaanxi 710119 People's Republic of China
| | - Huan Luo
- School of Chemistry and Chemical Engineering; Shaanxi Normal University, Xi'an; Shaanxi 710119 People's Republic of China
| | - Tao Wang
- School of Chemistry and Chemical Engineering; Shaanxi Normal University, Xi'an; Shaanxi 710119 People's Republic of China
| | - Yonghai Chai
- Key Laboratory of Applied Surface and Colloid Chemistry; MOE; Shaanxi Normal University, Xi'an; Shaanxi 710119 People's Republic of China
| |
Collapse
|
14
|
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
|
15
|
Kiyokawa K, Ito Y, Kakehi R, Ogawa T, Goto Y, Yoshimatsu M. Propargyl Hydrazides as Useful Intermediates Leading to Pyrazoles via Reaction with Certain Electrophiles. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600708] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Kosuke Kiyokawa
- Department of Chemistry; Faculty of Education; Gifu University; Yanagido 1-1 501-1193 Gifu Japan
| | - Yukiteru Ito
- Department of Chemistry; Faculty of Education; Gifu University; Yanagido 1-1 501-1193 Gifu Japan
| | - Ryoma Kakehi
- Department of Chemistry; Faculty of Education; Gifu University; Yanagido 1-1 501-1193 Gifu Japan
| | - Takahiro Ogawa
- Department of Chemistry; Faculty of Education; Gifu University; Yanagido 1-1 501-1193 Gifu Japan
| | - Yusuke Goto
- Department of Chemistry; Faculty of Education; Gifu University; Yanagido 1-1 501-1193 Gifu Japan
| | - Mitsuhiro Yoshimatsu
- Department of Chemistry; Faculty of Education; Gifu University; Yanagido 1-1 501-1193 Gifu Japan
| |
Collapse
|
16
|
Ding ZC, Yang Y, Cai SN, Wen JJ, Zhan ZP. Synthesis of 1,4-Dihydropyridazines from Propargylic Alcohols and Hydrazones via a Cs 2CO 3-mediated Process. CHEM LETT 2016. [DOI: 10.1246/cl.160397] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
17
|
Vasin VA, Razin VV, Bezrukova EV, Petrov PS. Regioselectivity of the thermal van Alphen–Hüttel rearrangement of 4- and 5-mono- and 4,5-disubstituted 3,3-diphenyl-3H-pyrazoles. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2016. [DOI: 10.1134/s1070428016060178] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
18
|
Haydl AM, Hilpert LJ, Breit B. Regioconvergent and Enantioselective Rhodium-Catalyzed Hydroamination of Internal and Terminal Alkynes: A Highly Flexible Access to Chiral Pyrazoles. Chemistry 2016; 22:6547-51. [DOI: 10.1002/chem.201601198] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Alexander M. Haydl
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstrasse 21 79104 Freiburg im Breisgau Germany
| | - Lukas J. Hilpert
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstrasse 21 79104 Freiburg im Breisgau Germany
| | - Bernhard Breit
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstrasse 21 79104 Freiburg im Breisgau Germany
| |
Collapse
|
19
|
Volkova YA, Antonov YS, Komkov AV, Scherbakov AM, Shashkov AS, Menchikov LG, Chernoburova EI, Zavarzin IV. Access to steroidal pyridazines via modified thiohydrazides. RSC Adv 2016. [DOI: 10.1039/c6ra06881b] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Cytotoxic effects against breast cancer cells.
Collapse
Affiliation(s)
- Y. A. Volkova
- N. D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- 119991 Moscow
- Russia
| | - Y. S. Antonov
- N. D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- 119991 Moscow
- Russia
| | - A. V. Komkov
- N. D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- 119991 Moscow
- Russia
| | - A. M. Scherbakov
- Blokhin N. N. Cancer Research Centre
- Ministry of Health of the Russian Federation
- 115478 Moscow
- Russia
| | - A. S. Shashkov
- N. D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- 119991 Moscow
- Russia
| | - L. G. Menchikov
- N. D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- 119991 Moscow
- Russia
| | - E. I. Chernoburova
- N. D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- 119991 Moscow
- Russia
| | - I. V. Zavarzin
- N. D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- 119991 Moscow
- Russia
| |
Collapse
|
20
|
Pérez-Aguilar MC, Valdés C. Synthesis of Chiral Pyrazoles: A 1,3-Dipolar Cycloaddition/[1,5] Sigmatropic Rearrangement with Stereoretentive Migration of a Stereogenic Group. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201506881] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
21
|
Pérez-Aguilar MC, Valdés C. Synthesis of Chiral Pyrazoles: A 1,3-Dipolar Cycloaddition/[1,5] Sigmatropic Rearrangement with Stereoretentive Migration of a Stereogenic Group. Angew Chem Int Ed Engl 2015; 54:13729-33. [DOI: 10.1002/anie.201506881] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Indexed: 11/12/2022]
|
22
|
Muthusamy S, Sivaguru M, Suresh E. Indium(III) chloride catalyzed highly diastereoselective domino synthesis of indenodithiepines and indenodithiocines. Chem Commun (Camb) 2015; 51:707-10. [PMID: 25418338 DOI: 10.1039/c4cc07280d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An atom-economical diastereoselective synthesis of indenodithiepines and indenodithiocines has been developed via a domino reaction of propargylic alcohols and dithioacetals in the presence of InCl3 as a catalyst. A range of functionalized dithiepines and dithiocines, fused to the indene ring, were obtained in good to excellent yields under mild conditions.
Collapse
|
23
|
Affiliation(s)
- Ingmar Bauer
- Department Chemie, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany
| | - Hans-Joachim Knölker
- Department Chemie, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany
| |
Collapse
|
24
|
Huang L, Arndt M, Gooßen K, Heydt H, Gooßen LJ. Late Transition Metal-Catalyzed Hydroamination and Hydroamidation. Chem Rev 2015; 115:2596-697. [DOI: 10.1021/cr300389u] [Citation(s) in RCA: 739] [Impact Index Per Article: 82.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Liangbin Huang
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663 Kaiserslautern, Germany
| | - Matthias Arndt
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663 Kaiserslautern, Germany
| | - Käthe Gooßen
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663 Kaiserslautern, Germany
| | - Heinrich Heydt
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663 Kaiserslautern, Germany
| | - Lukas J. Gooßen
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663 Kaiserslautern, Germany
| |
Collapse
|
25
|
Wen JJ, Tang HT, Xiong K, Ding ZC, Zhan ZP. Synthesis of Polysubstituted Pyrazoles by a Platinum-Catalyzed Sigmatropic Rearrangement/Cyclization Cascade. Org Lett 2014; 16:5940-3. [DOI: 10.1021/ol502968c] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Jia-Jie Wen
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| | - Hai-Tao Tang
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| | - Kai Xiong
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| | - Zong-Cang Ding
- 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
|
26
|
Sha Q, Liu H, Wei Y. Design and Synthesis of 3-Trifluoromethyl-3H-pyrazoles and Further Investigations of Their Transformation to 1H-Pyrazoles. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403141] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
27
|
Qiu J, Zhang R. Direct transformation of arylpropynes to acrylamides via a three-step tandem reaction. Org Biomol Chem 2014; 12:1556-60. [PMID: 24480932 DOI: 10.1039/c3ob42444h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel and metal-free acrylamides formation between arylpropynes and hydroxylamine hydrochloride through sp(3) C-H and C-C bond cleavage has been achieved with DDQ as an oxidant. The mechanistic study shows that the acrylamides are formed through a three-step tandem sequence, including cross-dehydrogenative-coupling (CDC) reaction, aza-Meyer-Schuster rearrangement and Beckmann rearrangement.
Collapse
Affiliation(s)
- Jun Qiu
- Department of Chemistry, Tongji University, Shanghai 200092, P. R. China
| | | |
Collapse
|
28
|
Merchant RR, Allwood DM, Blakemore DC, Ley SV. Regioselective Preparation of Saturated Spirocyclic and Ring-Expanded Fused Pyrazoles. J Org Chem 2014; 79:8800-11. [DOI: 10.1021/jo501624t] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Rohan R. Merchant
- Department
of Chemistry, University of Cambridge, Cambridge, CB2 1EW, U.K
| | - Daniel M. Allwood
- Department
of Chemistry, University of Cambridge, Cambridge, CB2 1EW, U.K
| | - David C. Blakemore
- Neusentis
Chemistry, Pfizer Worldwide Research and Development, The Portway Building, Granta
Park, Cambridge, CB21 6GS, U.K
| | - Steven V. Ley
- Department
of Chemistry, University of Cambridge, Cambridge, CB2 1EW, U.K
| |
Collapse
|
29
|
Harigae R, Moriyama K, Togo H. Preparation of 3,5-disubstituted pyrazoles and isoxazoles from terminal alkynes, aldehydes, hydrazines, and hydroxylamine. J Org Chem 2014; 79:2049-58. [PMID: 24512630 DOI: 10.1021/jo4027116] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The reaction of terminal alkynes with n-BuLi, and then with aldehydes, followed by the treatment with molecular iodine, and subsequently hydrazines or hydroxylamine provided the corresponding 3,5-disubstituted pyrazoles or isoxazoles in good yields with high regioselectivity, through the formations of propargyl secondary alkoxides and α-alkynyl ketones. The present reactions are one-pot preparation of 3,5-disubstituted pyrazoles from terminal alkynes, aldehydes, molecular iodine, and hydrazines, and 3,5-disubstituted isoxazoles from terminal alkynes, aldehydes, molecular iodine, and hydroxylamine.
Collapse
Affiliation(s)
- Ryo Harigae
- Graduate School of Science, Chiba University , Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan
| | | | | |
Collapse
|
30
|
Zhu Y, Shen XR, Tang HT, Lin M, Zhan ZP. Silver(i)-catalyzed annulation for the regioselective synthesis of N-imino-γ-carbolinium ylides from hydrazones of indole-3-carbonyl derivatives and propargylic alcohols. Org Biomol Chem 2014; 12:9514-8. [DOI: 10.1039/c4ob02020k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A regioselective efficient synthetic approach to N-imino-γ-carbolinium ylides via AgOTf-catalyzed iminoannulation from indole derivatives and propargylic alcohols has been developed.
Collapse
Affiliation(s)
- Yu Zhu
- 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
| | - Xin-Rui Shen
- 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
| | - 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
| | - Min Lin
- 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
|
31
|
Tang X, Huang L, Yang J, Xu Y, Wu W, Jiang H. Practical synthesis of pyrazoles via a copper-catalyzed relay oxidation strategy. Chem Commun (Camb) 2014; 50:14793-6. [DOI: 10.1039/c4cc06747a] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
An efficient Cu-catalyzed cascade reaction involving N–O bond cleavage and C–C/C–N/N–N bond formations is developed to afford various 1,3- and 1,3,4-substituted pyrazoles.
Collapse
Affiliation(s)
- Xiaodong Tang
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640, China
| | - Liangbin Huang
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640, China
| | - Jidan Yang
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640, China
| | - Yanli Xu
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640, China
| | - Wanqing Wu
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640, China
| | - Huanfeng Jiang
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640, China
| |
Collapse
|
32
|
Zhu Y, Hong JJ, Zhou YB, Xiao YW, Lin M, Zhan ZP. Selective synthesis of 4-(sulfonyl)-methyl-1H-pyrazoles and (E)-4,5-dihydro-1H-pyrazoles from N-allenic sulfonylhydrazones. Org Biomol Chem 2014; 12:3797-801. [DOI: 10.1039/c4ob00550c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Selective synthesis of 4-(sulfonyl)-methyl-1H-pyrazoles and (E)-4,5-dihydro-1H-pyrazoles from N-allenic sulfonylhydrazones with sulfonyl group migrations has been developed.
Collapse
Affiliation(s)
- Yu Zhu
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen, People's Republic of China
| | - Jun-Jie Hong
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen, People's Republic of China
| | - Yun-Bin Zhou
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen, People's Republic of China
| | - Yu-Wei Xiao
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen, People's Republic of China
| | - Min Lin
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen, People's Republic of China
| | - Zhuang-Ping Zhan
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen, People's Republic of China
| |
Collapse
|
33
|
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
|
34
|
Pramanik S, Ghorai P. Synthesis and Asymmetric Resolution of α-Azido-peroxides. Org Lett 2013; 15:3832-5. [DOI: 10.1021/ol401443a] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Suman Pramanik
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal-462023, India
| | - Prasanta Ghorai
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal-462023, India
| |
Collapse
|
35
|
Yoshimatsu M, Tanabe G, Muraoka O. Chemistry of Propargyl Compounds Activated by Sulfur Functional Groups^|^mdash;Development of Methodology for the Synthesis of Heterocyles Triggered by Functionalizations. J SYN ORG CHEM JPN 2013. [DOI: 10.5059/yukigoseikyokaishi.71.1282] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|