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Mironovich LM, Ivanov SM, Koltun DS. CRYSTAL STRUCTURE OF 3-tert-BUTYL- PYRAZOLO[5,1-с][1,2,4]TRIAZINE-3,4-DIYL DICARBOXYLATES. J STRUCT CHEM+ 2021. [PMCID: PMC8594640 DOI: 10.1134/s0022476621100061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
By single crystal X-ray diffraction the structures of (trans-)7-R1-8-methyl-3-tert-butyl-3,4-dihydropyrazolo[5,1-с][1,2,4]triazine-3,4-diyl dibenzoates 3а, 4а (R1 = H, Br) and diacetate 3b (R1 = H) are studied for the first time. The compounds are synthesized by oxidative bromination of respective 1,4-dihydropyrazolo[5,1-c][1,2,4]triazines in the presence of carboxylic acids. Dicarboxylates adopt a twist-conformation with the equatorial (3a) or axial (3b, 4a) orientation of tert-butyl groups relative to the heterocycle. In the case of diacetate 3b, a decrease in the thermal motion of the O4–C16–C17 fragment along with a decrease in the unit cell volume are observed on cooling from 300 K to 200 K. Bond lengths, torsion angles, and molecular packings in the crystals are discussed. ![]()
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Affiliation(s)
| | - S. M. Ivanov
- Zelinskii Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - D. S. Koltun
- Zelinskii Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
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Ivanov SM, Mironovich LM, Daeva ED. Synthesis and structure of 6-tert-butyl-5-triphenylgermyl-1,2,4-triazines. Russ Chem Bull 2021. [DOI: 10.1007/s11172-021-3229-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ivanov SM, Koltun DS. Synthesis and transformations of 4-phenylethynyl- and 4-styrylpyrazolo[5,1-c][1,2,4]triazines. Chem Heterocycl Compd (N Y) 2021. [DOI: 10.1007/s10593-021-02964-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ivanov SM. Synthesis of 1,4-dimethyl(phenyl)silyl- and triphenylsilyl-3- tert-butyl-8-methylpyrazolo[5,1- c][1,2,4]triazines. PHOSPHORUS SULFUR 2021. [DOI: 10.1080/10426507.2020.1835906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Sergey M. Ivanov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
- D.I. Mendeleev University of Chemical Technology of Russia, Russia, Moscow
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Ivanov SM, Mironovich LM, Kolotyrkina NG, Minyaev ME. Synthesis of (3-tert-Butylpyrazolo[5,1-c][1,2,4]triazin-4-yl)phosphine Oxides. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1070428021010073] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ivanov SM, Mironovich LM, Minyaev ME. Synthesis of 8-alkylthio- and 8-selanyl-3- tert-butylpyrazolo[5,1- c][1,2,4]triazines. PHOSPHORUS SULFUR 2020. [DOI: 10.1080/10426507.2020.1712395] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Sergey M. Ivanov
- Laboratory of Medicinal Chemistry, N.D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Moscow, Russia
- Skoltech Department, D.I. Mendeleev University of Chemical Technology of Russia, Moscow, Russia
| | | | - Mikhail E. Minyaev
- Department of Structural Studies, N.D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Moscow, Russia
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Synthesis and photolysis of 3-tert-butyl-4-oxy(mercapto)-1,4-dihydropyrazolo[5,1-c][1,2,4]triazines. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-2825-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Mironovich LM, Ivanov SM, Kolotyrkina NG. Synthesis of 3-tert-Butyl-4-hydroxy-1,4-dihydropyrazolo[5,1-c][1,2,4]triazines. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428020040065] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Generation and chemical properties of (3,4-di-tert-butyl-1,4-dihydropyrazolo[5,1-c][1,2,4]triazin-4-yl)lithiums. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2019.121060] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ivanov SM, Sivaev IB. Synthesis and X‐ray single crystal structure of first aromatic
ortho
‐di‐
tert
‐butyl azolo[1,2,4]triazine. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3839] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Sergey M. Ivanov
- N.D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences Moscow Russia
- D.I. Mendeleev University of Chemical Technology of Russia Moscow Russia
| | - Igor B. Sivaev
- A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Moscow Russia
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Chen Y. Advances in the Synthesis of Methylated Products through Indirect Approaches. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901240] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yantao Chen
- Medicinal Chemistry, Research and Early DevelopmentCardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca 43183 Gothenburg Sweden
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Ivanov SM, Dmitrenok AS, Lyssenko KA. Diastereoselective synthesis of 3-tert-butyl-3,4-dihydropyrazolo[5,1-c][1,2,4]triazine-3,4-diyl dicarboxylates. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151109] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Izmest'ev AN, Kim NA, Karnoukhova VA, Kolotyrkina NG, Kravchenko AN, Gazieva GA. Cascade of Michael Addition/Retro‐Michael Reaction/Skeletal Rearrangement in the Synthesis of Arylmethylidene Derivatives of Imidazothiazolotriazines. ChemistrySelect 2019. [DOI: 10.1002/slct.201902461] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Alexei N. Izmest'ev
- N. D. Zelinsky Institute of Organic ChemistryRussian Academy of Sciences 47 Leninsky Prosp. 119991 Moscow Russian Federation
| | - Nikita A. Kim
- N. D. Zelinsky Institute of Organic ChemistryRussian Academy of Sciences 47 Leninsky Prosp. 119991 Moscow Russian Federation
- D. Mendeleev University of Chemical Technology of Russia 9 Miusskaya Sq. 125047 Moscow Russian Federation
| | - Valentina A. Karnoukhova
- A. N. Nesmeyanov Institute of Organoelement CompoundsRussian Academy of Sciences 28 Vavilova Str. 119991 Moscow Russian Federation
| | - Natalya G. Kolotyrkina
- N. D. Zelinsky Institute of Organic ChemistryRussian Academy of Sciences 47 Leninsky Prosp. 119991 Moscow Russian Federation
| | - Angelina N. Kravchenko
- N. D. Zelinsky Institute of Organic ChemistryRussian Academy of Sciences 47 Leninsky Prosp. 119991 Moscow Russian Federation
- Academic Department of Chemistry and PhisicsPlekhanov Russian University of Economics 36 Stremyanny lane 117997 Moscow Russian Federation
| | - Galina A. Gazieva
- N. D. Zelinsky Institute of Organic ChemistryRussian Academy of Sciences 47 Leninsky Prosp. 119991 Moscow Russian Federation
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Ivanov SM, Dmitrienko AO, Medvedev MG, Mironovich LM. Metalated azolo[1,2,4]triazines. II. Generation, C(4)-substituent dependent stability and electrophile trapping of 7-lithiopyrazolo[5,1-c][1,2,4]triazines. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.06.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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15
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Ivanov SM, Shestopalov AM. Metalated Azolo[1,2,4]triazines. I. Synthesis of 2‐(6‐tert‐Butyl‐5‐oxo‐4,5‐dihydro‐1,2,4‐triazin‐3(2H)‐ylidene)acetonitrilesviaRing Opening Degradation of 3‐tert‐Butyl‐7‐lithio‐4‐oxo‐4H‐pyrazolo[5,1‐c][1,2,4]triazin‐1‐ides. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3615] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sergey M. Ivanov
- Laboratory of Medicinal Chemistry (N17)N.D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences Leninsky Prospekt, 47 Moscow 119991 Russia
| | - Anatoliy M. Shestopalov
- Laboratory of Medicinal Chemistry (N17)N.D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences Leninsky Prospekt, 47 Moscow 119991 Russia
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Ivanov SM, Mironovich LM, Kolotyrkina NG, Shestopalov AM. Synthesis and chemical properties of 8-lithio-4-oxopyrazolo[5,1-c][1,2,4]triazines. Russ Chem Bull 2019. [DOI: 10.1007/s11172-019-2464-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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17
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Synthesis of 2-perfluoroalkyl-1,4-dihydropyrazolo[1,5-a][1,3,5]triazines via rearrangements of (1-perfluoroacetyl-1,4-dihydropyrazolo[5,1-c][1,2,4]triazin-4-yl)lithiums. J Fluor Chem 2019. [DOI: 10.1016/j.jfluchem.2019.02.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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