Výsledky vyhledávání - "Yu. G. Khalyavina"

Peculiarities of the Reaction of 2-Amino-1,4-naphthoquinones with 2,2-Dihydroxy-1H-indene-1,3(2H)-dione

Autor: Yu. V. Gatilov, T. I. Lavrikova, O. I. Fominykh, Gornostaev Leonid M, Galina A. Stashina, Yu. G. Khalyavina

Publikováno v: Russian Journal of Organic Chemistry. 55:1716-1725

—The reaction of 2-amino-1,4-naphthoquinones with ninhydrin at 50–60°C in acetic acid leads to 4b,11b-dihydroxy-4b,5-dihydrobenzo[f]indeno[1,2-b]indole-6,11,12(11bH)-triones. The products were isolated as hydrates, and, when heated in DMSO with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::93aaa6061fe1f312ce46438601a7e802
https://doi.org/10.1134/s1070428019110125

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On the Reaction of 2-Benzylamino-1,4-naphthoquinones with Nitrosylsulfuric Acid

Autor: Gornostaev Leonid M, O. I. Fominykh, Yu. V. Gatilov, T. I. Lavrikova, E. V. Nuretdinova, Yu. G. Khalyavina

Publikováno v: Russian Journal of Organic Chemistry. 55:608-614

The reaction of 2-benzylamino-1,4-naphthoquinone with nitrosylsulfuric acid in acetic acid results in preferential formation of 2,1- and 2,3-heterocyclization products: (E)-4-(hydroxyimino)-2-phenylnaphtho [2,1-d]oxazol-5(4H)-one and 2-phenyl-1-hydro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3f3538a4ef21874be4ae76698e445e39
https://doi.org/10.1134/s1070428019050051

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Oximation of 2-(R1-Amino)-4-(R2-imino)naphthalen-1(4H)-ones

Autor: Yu. G. Khalyavina, Yu. V. Gatilov, Gornostaev Leonid M, E. V. Arnold, T. A. Rukovets

Publikováno v: Russian Journal of Organic Chemistry. 54:78-86

The oximation of 2-(R1-amino)-4-(R2-imino)naphthalen-1(4H)-ones with hydroxylamine hydrochloride in pyridine afforded 2-(R-amino)-4-(hydroxyimino)naphthalen-1(4H)-ones.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cf4360a82a14dd52d9a23414f00c4451
https://doi.org/10.1134/s1070428018010062

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Isomerization of 4-arylamino-1,2-naphthoquinones to 2-arylamino-1,4-naphthoquinones

Autor: Gornostaev Leonid M, T. A. Rukovets, Yu. G. Khalyavina, Galina A. Stashina, T. I. Lavrikova

Publikováno v: Russian Chemical Bulletin. 66:1007-1010

4-Arylamino-1,2-naphthoquinones isomerize into 2-arylamino-1,4-naphthoquinones upon refluxing in acetic acid. The isomerization follows two routes via intermediate 2-hydroxy-1,4-naphthoquinone and 2-arylamino-1,4-naphthoquinone 4-N-arylimines.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1fe84f4001739ec720c23dcf53026086
https://doi.org/10.1007/s11172-017-1847-z

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Transformations of 2-alkylamino-1,4-naphthoquinones under the action of nitrating mixture in acetic acid

Autor: Yu. G. Khalyavina, Gornostaev Leonid M, I. S. Kryukovskaya, Yu. V. Gatilov, T. I. Lavrikova, E. V. Nuretdinova

Publikováno v: Russian Journal of Organic Chemistry. 51:1733-1738

Reactions of 2-alkylamino-1,4-naphthoquinones with a nitrating mixture in acetic acid afforded 2-alkyl-1-hydroxy-1H-naphtho[2,3-d]imidazole-4,9-diones.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d55a78217357a506c0084ba700eab1d5
https://doi.org/10.1134/s107042801512012x

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Transformation of 2-alkylamino-1,4-naphthoquinones into 2-alkylnaphtho[2,1-d][1,3]oxazole-4,5-dione 4-oximes by the action of nitrosylsulfuric acid

Autor: Gornostaev Leonid M, Yu. V. Gatilov, T. I. Lavrikova, Galina A. Stashina, Yu. G. Khalyavina, S. I. Firgang

Publikováno v: Russian Journal of Organic Chemistry. 50:1814-1820

2-Alkylnaphtho[2,1-d][1,3]oxazole-4,5-dione 4-oximes were synthesized by reaction of 2-alkylamino-1,4-naphthoquinones with nitrosylsulfuric acid in acetic acid.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7884c3aceed1f0d4dea91005aad99e97
https://doi.org/10.1134/s1070428014120173

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Cyclization of 2-arylamino-1,4-naphthoquinones to benzo[b]phenazine-6,11-dione 5-oxides

Autor: Gornostaev Leonid M, G. A. Stashina, Sergey I. Firgang, Yu. G. Khalyavina, T. I. Lavrikova, Vladimir V. Chernyshev

Publikováno v: Russian Chemical Bulletin. 63:739-743

A method for the synthesis of a new group of tetracyclic diazaquinones, viz., benzo[b]-phenazine-6,11-dione 5-oxides, was developed and the pathways of their further modifications were outlined.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8a9a08d78e91424606385b1f82c9008f
https://doi.org/10.1007/s11172-014-0500-3

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Synthesis of 2-aryl-1-hydroxy-1H-naphtho[2,3-d]imidazole-4,9-diones by reaction of 2-benzylamino-1,4-naphthoquinones with nitric acid

Autor: M. V. Vigant, Gornostaev Leonid M, Anastasia S. Kuznetsova, T. I. Lavrikova, O. I. Kargina, Yu. G. Khalyavina

Publikováno v: Russian Journal of Organic Chemistry. 49:1354-1357

2-Aryl-1-hydroxy-1H-naphtho[2,3-d]imidazole-4,9-diones were synthesized by treatment of 2-benzylamino-1,4-naphthoquinones with a mixture of nitric and sulfuric acids in acetic acid.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f06bc8bc99f484fd93cb29ff8257ad67
https://doi.org/10.1134/s1070428013090194

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