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Pelipko VV, Adyukov IS, Baichurin RI, Makarenko SV. Alkyl 3-Nitroacrylates in Reactions with Substituted Hydrazines. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222020013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Kiran, Rani P, Chahal S, Sindhu J, Kumar S, Varma RS, Singh R. Transition metal-free C-3 functionalization of quinoxalin-2(1 H)-ones: recent advances and sanguine future. NEW J CHEM 2021. [DOI: 10.1039/d1nj03445f] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A gradual shift from metal-catalyzed to metal-free methods is occurring, as the latter are more environmentally benign. This review discusses sustainable protocols for the construction of C–C, C–N, C–P, C–S, and C–O bonds via C–H functionalization of quinoxalin-2(1H)-ones.
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Affiliation(s)
- Kiran
- Department of Chemistry, COBS&H, CCSHAU, Hisar, 125004, India
| | - Payal Rani
- Department of Chemistry, COBS&H, CCSHAU, Hisar, 125004, India
| | - Sandhya Chahal
- Department of Chemistry, COBS&H, CCSHAU, Hisar, 125004, India
| | - Jayant Sindhu
- Department of Chemistry, COBS&H, CCSHAU, Hisar, 125004, India
| | - Sudhir Kumar
- Department of Chemistry, COBS&H, CCSHAU, Hisar, 125004, India
| | - Rajender S. Varma
- Regional Centre of Advanced Technologies and Materials, Palacký University in Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
| | - Rajvir Singh
- Department of Chemistry, COBS&H, CCSHAU, Hisar, 125004, India
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Kristoffersen T, Elumalai V, Starck E, Cousin É, Wagner LJ, Hansen SR, Hansen JH. Microwave‐Assisted Synthesis of Heterocycles from Aryldiazoacetates**. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tone Kristoffersen
- UiT The Arctic University of Norway Department of Chemistry Chemical Synthesis and Analysis Group Hansine Hansens veg 54 9037 Tromsø Norway
| | - Vijayaragavan Elumalai
- UiT The Arctic University of Norway Department of Chemistry Chemical Synthesis and Analysis Group Hansine Hansens veg 54 9037 Tromsø Norway
| | - Eliot Starck
- UiT The Arctic University of Norway Department of Chemistry Chemical Synthesis and Analysis Group Hansine Hansens veg 54 9037 Tromsø Norway
| | - Étienne Cousin
- UiT The Arctic University of Norway Department of Chemistry Chemical Synthesis and Analysis Group Hansine Hansens veg 54 9037 Tromsø Norway
| | - Lucille J. Wagner
- UiT The Arctic University of Norway Department of Chemistry Chemical Synthesis and Analysis Group Hansine Hansens veg 54 9037 Tromsø Norway
| | - Stephanie R. Hansen
- UiT The Arctic University of Norway Department of Chemistry Chemical Synthesis and Analysis Group Hansine Hansens veg 54 9037 Tromsø Norway
| | - Jørn H. Hansen
- UiT The Arctic University of Norway Department of Chemistry Chemical Synthesis and Analysis Group Hansine Hansens veg 54 9037 Tromsø Norway
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Synthesis of nitromethyl-, N-methylindolyl-, or N-methylindolylnitromethyl-substituted 1,4-benzothiazin(diazin)ones and 3-methyl-1,4-benzoxazinones from alkyl 3-nitroacrylates. Chem Heterocycl Compd (N Y) 2018. [DOI: 10.1007/s10593-018-2339-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Microwave-assisted facile construction of quinoxalinone and benzimidazopyrazinone derivatives via two paths of post-Ugi cascade reaction. Mol Divers 2018; 23:137-145. [PMID: 30073609 DOI: 10.1007/s11030-018-9855-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 06/25/2018] [Indexed: 10/28/2022]
Abstract
A facile and efficient route to synthesize quinoxalinone and benzimidazopyrazinone was developed via two paths of a post-Ugi cascade reaction. By simply alternating the order of nucleophilic substitution reactions, both heterocycles could be accessed selectively from the same Ugi adduct. Microwave-assisted synthesis protocol provided these compounds with one purification procedure for three steps. These two scaffolds with more possible spaces for further modifications provide great benefit toward combinatorial and medicinal chemistry campaigns.
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Golushko AA, Sandzhieva MA, Ivanov AY, Boyarskaya IA, Khoroshilova OV, Barkov AY, Vasilyev AV. Reactions of 3,3,3-Trihalogeno-1-nitropropenes with Arenes in the Superacid CF 3SO 3H: Synthesis of ( Z)-3,3,3-Trihalogeno-1,2-diarylpropan-1-one Oximes and Study on the Reaction Mechanism. J Org Chem 2018; 83:10142-10157. [PMID: 30004232 DOI: 10.1021/acs.joc.8b01406] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
3,3,3-Trihalogeno-1-nitropropenes C(Hal3)CH═CH(NO2) (Hal = F, Cl, Br) in reaction with arenes in the superacid CF3SO3H (TfOH) at room temperature in 1 h afford 3,3,3-trihalogeno-1,2-diarylpropan-1-one oximes C(Hal3)CH(Ar)-C(Ar)═NOH (CHal3-oximes) in yields of 23-99%. Such CHal3-oximes having one ortho-substituent in the aryl ring exist as atropoisomers in solutions at room temperature. Several cationic intermediates of this reaction were studied by means of NMR and DFT calculations, which proves the detailed reaction mechanism of the formation of CHal3-oximes in TfOH. CHal3-oximes (for Hal = Cl, Br) with DBU in DMF at microwave or thermal activation are cyclized into 5-halogeno-3,4-diarylisoxazoles in yields of 37-59%. CHal3-oximes under the conditions of Beckmann rearrangement with PCl5 in benzene at room temperature in 24 h are turned at first into imidoyl chlorides (yields of 94-96%), which undergo transformation into the corresponding benzamides PhCONHCHPh(CHal3) on silica gel (yields of 46-47%).
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Affiliation(s)
- Andrei A Golushko
- Department of Organic Chemistry, Institute of Chemistry , Saint Petersburg State University , Universitetskaya nab., 7/9 , Saint Petersburg , 199034 , Russia
| | - Maria A Sandzhieva
- Department of Chemistry , Saint Petersburg State Forest Technical University , Institutsky per., 5 , Saint Petersburg , 194021 , Russia
| | - Alexander Yu Ivanov
- Center for Magnetic Resonance, Research Park , St. Petersburg State University , Universitetskiy pr., 26 , Saint Petersburg , Petrodvoretz 198504 , Russia
| | - Irina A Boyarskaya
- Department of Organic Chemistry, Institute of Chemistry , Saint Petersburg State University , Universitetskaya nab., 7/9 , Saint Petersburg , 199034 , Russia
| | - Olesya V Khoroshilova
- Center for X-ray Diffraction Studies, Research Park , St. Petersburg State University , Universitetskiy pr., 26 , Saint Petersburg , Petrodvoretz 198504 , Russia
| | - Alexey Yu Barkov
- Institute of Natural Sciences and Mathematics , Ural Federal University , Mira str., 19 , Yekaterinburg , 620000 , Russia
| | - Aleksander V Vasilyev
- Department of Organic Chemistry, Institute of Chemistry , Saint Petersburg State University , Universitetskaya nab., 7/9 , Saint Petersburg , 199034 , Russia.,Department of Chemistry , Saint Petersburg State Forest Technical University , Institutsky per., 5 , Saint Petersburg , 194021 , Russia
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Makarenko SV, Sadykov KD, Baichurin RI. Alkyl 3-bromo-3-nitroacrylates – convenient building blocks for the construction of benzo-fused six-membered N,N-, N,O- and five-membered O,O-heterocycles. Chem Heterocycl Compd (N Y) 2018. [DOI: 10.1007/s10593-018-2296-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Pelipko VV, Makarenko SV, Baichurin RI, Berestovitskaya VM, Kovalenko KS. Alkyl 3-nitroacrylates: Synthesis and reactions with cyclohexane-1,3-diones and Meldrum’s acid. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2018. [DOI: 10.1134/s107042801712003x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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