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Chen L, Zhang M, Liu M, Liu Z, Qiu Y, Zhang Z, Yu F, Huang J. Rh(III)-catalyzed selective mono- and dual-functionalization/cyclization of 1-aryl-5-aminopyrazoles with iodonium ylides. Chem Commun (Camb) 2024; 60:432-435. [PMID: 38086626 DOI: 10.1039/d3cc05266d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
An efficient Rh(III)-catalyzed selective mono- and dual-C-H bond functionalization/cyclization with iodonium ylide as a single coupling partner was demonstrated, in which fused benzodiazepine skeletons were obtained in excellent yields. This method greatly improved an effective approach to dual C-H unsymmetrical functionalization.
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Affiliation(s)
- Longkun Chen
- Faculty of Life Science and Technology, Kunming, University of Science and Technology, Kunming, 650500, P. R. China.
| | - Mingshuai Zhang
- Faculty of Life Science and Technology, Kunming, University of Science and Technology, Kunming, 650500, P. R. China.
| | - Meichen Liu
- Faculty of Life Science and Technology, Kunming, University of Science and Technology, Kunming, 650500, P. R. China.
| | - Zhuoyuan Liu
- Faculty of Life Science and Technology, Kunming, University of Science and Technology, Kunming, 650500, P. R. China.
| | - Yuetong Qiu
- Faculty of Life Science and Technology, Kunming, University of Science and Technology, Kunming, 650500, P. R. China.
| | - Zhilai Zhang
- Faculty of Life Science and Technology, Kunming, University of Science and Technology, Kunming, 650500, P. R. China.
| | - Fuchao Yu
- Faculty of Life Science and Technology, Kunming, University of Science and Technology, Kunming, 650500, P. R. China.
| | - Jiuzhong Huang
- School of Pharmacy and Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou, 341000, P. R. China.
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Ning Y, He X, Zuo Y, Wang J, Tang Q, Xie M, Li R, Shang Y. Rh-Catalyzed C-H activation/intramolecular condensation for the construction of benzo[f]pyrazolo[1,5-a][1,3]diazepines. Org Biomol Chem 2020; 18:2893-2901. [PMID: 32236225 DOI: 10.1039/d0ob00382d] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A novel and mild Rh(iii)-catalyzed C-H activation/intramolecular condensation of 1-aryl-1H-pyrazol-5-amines with cyclic 2-diazo-1,3-diketones was developed, giving access to various important benzo[f]pyrazolo[1,5-a][1,3]diazepine scaffolds through sequential C-C/C-N bond formation in a one-pot procedure under additive- and oxidant-free conditions. Furthermore, 3-([1,1'-biphenyl]-2-ylamino)-2-ethoxycyclohex-2-enones can be obtained in good yields by constructing C-O and C-N bonds through 1,1'-insertion, dehydration, and isomerization processes.
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Affiliation(s)
- Yi Ning
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China.
| | - Xinwei He
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China.
| | - Youpeng Zuo
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China.
| | - Jian Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China.
| | - Qiang Tang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China.
| | - Mengqing Xie
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China.
| | - Ruxue Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China.
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China.
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Montanaro S, Wright IA, Batsanov AS, Bryce MR. Synthesis of Tetracyclic 2,3-Dihydro-1,3-diazepines from a Dinitrodibenzothiophene Derivative. J Org Chem 2018; 83:12320-12326. [PMID: 30247912 DOI: 10.1021/acs.joc.8b02029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Triply fused 1,3-diazepine derivatives have been obtained by acidic reduction of rotationally locked and sterically hindered nitro groups in the presence of an aldehyde or ketone. The nitro groups are sited on adjacent rings of a dicyanodibenzothiophene-5,5-dioxide, which also displays fully reversible two-electron-accepting behavior. The synthesis, crystallographically determined molecular structures, and aspects of the electronic properties of these new molecules are presented.
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Affiliation(s)
- Stephanie Montanaro
- Department of Chemistry , Durham University , Durham , DH1 3LE , United Kingdom.,Department of Chemistry , Loughborough University , Loughborough , LE11 3TU , United Kingdom
| | - Iain A Wright
- Department of Chemistry , Loughborough University , Loughborough , LE11 3TU , United Kingdom
| | - Andrei S Batsanov
- Department of Chemistry , Durham University , Durham , DH1 3LE , United Kingdom
| | - Martin R Bryce
- Department of Chemistry , Durham University , Durham , DH1 3LE , United Kingdom
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Baskın D, Çetinkaya Y, Balci M. Synthesis of dipyrrolo-diazepine derivatives via intramolecular alkyne cyclization. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.06.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Yagodkina MS, Yakovenko GG, Bol’but AV, Vovk MV. Cascade cyclization of methyl 2-(azidomethyl)furan-3-carboxylates with 2-cyanoacetamides. Efficient synthesis of a new heterocyclic system, furo[3,2-e][1,2,3]triazolo- [1,5-a][1,3]diazepine. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2017. [DOI: 10.1134/s1070428017040261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Vatansever EC, Kılıç K, Özer MS, Koza G, Menges N, Balci M. Intermolecular heterocyclization of alkynones with 2-mercaptoacetaldehyde under metal-free conditions: synthesis of 2,3-disubstituted thiophenes. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.07.090] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ergun M, Dengiz C, Özer MS, Şahin E, Balci M. Synthesis of thio- and furan-fused heterocycles: furopyranone, furopyrrolone, and thienopyrrolone derivatives. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.05.071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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