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Milyutin CV, Komogortsev AN, Lichitsky BV. Synthesis of 1,2,3-triazoles containing an allomaltol moiety from substituted pyrano[2,3- d]isoxazolones via base-promoted Boulton-Katritzky rearrangement. Beilstein J Org Chem 2024; 20:1334-1340. [PMID: 38887584 PMCID: PMC11181224 DOI: 10.3762/bjoc.20.117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 05/28/2024] [Indexed: 06/20/2024] Open
Abstract
For the first time, the interaction of aroyl containing pyrano[2,3-d]isoxazolone derivatives with various hydrazines was studied. It was shown that the considered process includes formation of corresponding hydrazones followed by Boulton-Katritzky rearrangement. As a result, the general method for the synthesis of substituted 1,2,3-triazoles bearing an allomaltol fragment was elaborated. The suggested approach can be applied to various aromatic and heterocyclic hydrazines. At the same time for unsubstituted hydrazine the Boulton-Katritzky recyclization is not implemented. In this case the opening of the pyranone ring was observed leading to pyrazolylisoxazole derivatives. Both types of aforementioned structures were proved by X-ray analysis.
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Affiliation(s)
| | - Andrey Nikolaevich Komogortsev
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Pr., 47, Moscow, 119991, Russian Federation
| | - Boris Valerievich Lichitsky
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Pr., 47, Moscow, 119991, Russian Federation
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Komogortsev AN, Melekhina VG, Lichitskii BV. Anionic photochemical rearrangement of 3-hydroxypyran-4-ones bearing oxazol-2-one fragment. Org Biomol Chem 2024; 22:1686-1692. [PMID: 38304927 DOI: 10.1039/d3ob01957h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
The photochemical behavior of in situ generated anions of 3-hydroxypyran-4-ones containing an oxazol-2-one moiety was studied. For the first time, it was demonstrated that blue LED light irradiation (450 nm) of substituted 3-hydroxypyran-4-ones in the presence of a base leads regiospecifically to the formation of isomeric 3-hydroxypyran-2-ones. Transformation of the starting 3-hydroxypyran-4-ones into the corresponding anions is necessary for the presented photoprocess. Based on the considered visible light induced rearrangement, a general method for the synthesis of 3-hydroxypyran-2-ones with an oxazol-2-one moiety was elaborated. The structure of one of the synthesized compounds was confirmed by X-ray diffraction.
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Affiliation(s)
- Andrey N Komogortsev
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Science, Leninsky Pr., 47, Moscow 119991, Russian Federation.
| | - Valeriya G Melekhina
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Science, Leninsky Pr., 47, Moscow 119991, Russian Federation.
| | - Boris V Lichitskii
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Science, Leninsky Pr., 47, Moscow 119991, Russian Federation.
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Komogortsev AN, Lichitskii BV, Melekhina VG. 1,1'-Carbonyldiimidazole-mediated transformation of allomaltol containing hydrazides into substituted 3-acetyltetronic acids. Org Biomol Chem 2023; 21:7224-7230. [PMID: 37642509 DOI: 10.1039/d3ob01136d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
For the first time, the reaction of allomaltol containing hydrazides with 1,1'-carbonyldiimidazole (CDI) was studied. It was shown that under the considered conditions, 3-hydroxy-4-pyranone derivatives were transformed into 3-acetyltetronic acids bearing a pyrrolidin-2-one moiety. We have found that the key intermediates of the investigated process are substituted 6-oxa-1-azaspiro[4.5]dec-7-ene-2,9-diones. The structures of one final product and one intermediate were confirmed by X-ray analysis. The disclosed reaction was tested using a wide range of substituted allomaltols with various carboxamide units. It was demonstrated that in the case of hetaryl containing hydrazides and hydroxamic acids, the direction of the process is completely changed and cyclization into substituted pyrano[3,2-b]pyrans occurs.
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Affiliation(s)
- Andrey N Komogortsev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Science, Leninsky Pr., 47, Moscow 119991, Russian Federation.
| | - Boris V Lichitskii
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Science, Leninsky Pr., 47, Moscow 119991, Russian Federation.
| | - Valeriya G Melekhina
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Science, Leninsky Pr., 47, Moscow 119991, Russian Federation.
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Milyutin CV, Komogortsev AN, Lichitsky BV, Minyaev ME, Melekhina VG. Synthesis of substituted 8 H-benzo[ h]pyrano[2,3- f]quinazolin-8-ones via photochemical 6π-electrocyclization of pyrimidines containing an allomaltol fragment. Beilstein J Org Chem 2023; 19:778-788. [PMID: 37346494 PMCID: PMC10280060 DOI: 10.3762/bjoc.19.58] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 05/31/2023] [Indexed: 06/23/2023] Open
Abstract
For the first time, we elaborated a method for the synthesis of pyrimidines containing an allomaltol unit. The suggested approach is based on the reaction of 2-(1-(dimethylamino)-3-oxo-3-arylprop-1-en-2-yl)-3-hydroxy-6-methyl-4H-pyran-4-ones with cyanamide. The photochemical behavior of the obtained pyrimidines was investigated. It was shown that for the hydroxy derivatives the main pathway of phototransformation is a 6π-electrocyclization of the 1,3,5-hexatriene system and subsequent [1,9]-H sigmatropic shift leading to dihydrobenzo[h]pyrano[2,3-f]quinazolines. At the same time, for methylated analogues the photoreaction proceeds in two directions resulting in the formation of a mixture of the corresponding dihydrobenzo[h]pyrano[2,3-f]quinazolines and polyaromatic products. The obtained dihydro derivatives are stable compounds and do not undergo aromatization upon further UV irradiation. The structures of two of the dihydrobenzo[h]pyrano[2,3-f]quinazolines were confirmed by X-ray diffraction analysis. Based on the performed studies, a two-stage telescopic method for the synthesis of polyaromatic benzo[h]pyrano[2,3-f]quinazolines including the initial photocyclization of the starting pyrimidines and the final dehydration was proposed.
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Affiliation(s)
- Constantine V Milyutin
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Pr., 47, Moscow, 119991, Russian Federation
| | - Andrey Nikolaevich Komogortsev
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Pr., 47, Moscow, 119991, Russian Federation
| | - Boris V Lichitsky
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Pr., 47, Moscow, 119991, Russian Federation
| | - Mikhail E Minyaev
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Pr., 47, Moscow, 119991, Russian Federation
| | - Valeriya G Melekhina
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Pr., 47, Moscow, 119991, Russian Federation
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Milyutin CV, Galimova RG, Komogortsev AN, Lichitsky BV, Migulin VA, Melekhina VG. Photochemical Synthesis of Tetrahydro‐6
H
‐cyclopenta[
b
]furan‐6‐ones from Substituted Allomaltols. ChemistrySelect 2022. [DOI: 10.1002/slct.202204000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Constantine V. Milyutin
- Laboratory of Heterocyclic Compounds N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Science, Leninsky Pr., 47 Moscow 119991 Russian Federation
| | - Renata G. Galimova
- Laboratory of Heterocyclic Compounds N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Science, Leninsky Pr., 47 Moscow 119991 Russian Federation
- Faculty of Chemistry M.V. Lomonosov Moscow State University Leninskie Gory, 1 Moscow 119991 Russian Federation
| | - Andrey N. Komogortsev
- Laboratory of Heterocyclic Compounds N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Science, Leninsky Pr., 47 Moscow 119991 Russian Federation
| | - Boris V. Lichitsky
- Laboratory of Heterocyclic Compounds N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Science, Leninsky Pr., 47 Moscow 119991 Russian Federation
| | - Vasily A. Migulin
- Laboratory of Heterocyclic Compounds N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Science, Leninsky Pr., 47 Moscow 119991 Russian Federation
| | - Valeriya G. Melekhina
- Laboratory of Heterocyclic Compounds N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Science, Leninsky Pr., 47 Moscow 119991 Russian Federation
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4a,7a-Dihydroxy-1-(2-hydroxyethyl)-5-methyl-2′,3′,4a,5′,6′,7a-hexahydrospiro[cyclopenta[b]pyridine-4,4′-pyran]-2,7(1H,3H)-dione. MOLBANK 2022. [DOI: 10.3390/m1481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
An environment-friendly photochemical approach to the synthesis of 4a,7a-dihydroxy-1-(2-hydroxyethyl)-5-methyl-2′,3′,4a,5′,6′,7a-hexahydrospiro[cyclopenta[b]pyridine-4,4′-pyran]-2,7(1H,3H)-dione from 2-(4-(3-hydroxy-6-methyl-4-oxo-4H-pyran-2-yl)tetrahydro-2H-pyran-4-yl)-N-(2-hydroxyethyl)acetamide was elaborated. The suggested method is based on the ESIPT-promoted contraction of 3-hydroxypyran-4-one fragment followed by intramolecular cyclization of generated in situ α-hydroxy-1,2-diketone intermediate. The distinctive feature of the presented protocol is the employment of water as a solvent for the considered photoreaction. The structure of the obtained photoproduct was confirmed by 1H, 13C-NMR, IR spectroscopy and high-resolution mass spectrometry.
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Milyutin CV, Komogortsev AN, Lichitsky BV, Melekhina VG. Investigation of photochemical behavior of furan derivatives containing an allomaltol fragment. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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