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1.
A. M. Churakov A. Yu. Tyurin E. L. Goncharova S. L. Ioffe Yu. A. Strelenko V. A. Tartakovsky 《Russian Chemical Bulletin》1995,44(5):897-900
1-Aryl-2-alkenyldiazene 1-oxides were prepared by the reactions of 1-aryl-2-bromodiazene 1-oxides with olefins followed by dehydrobromination of the intermediate 1-aryl-2-(-bromoalkyl)diazene 1-oxides by triethylamine.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 924–927, May, 1995.This work was carried out at the Scientific Educational Center of the Institute of Organic Chemistry of the RAS with financial support of the Russian Foundation for Basic Research (Project No. 93-03-18461). 相似文献
2.
A. Yu. Tyurin A. M. Churakov S. L. Ioffe Yu. A. Strelenko V. A. Tartakovsky 《Russian Chemical Bulletin》1997,46(3):592-594
The reactions of 1-aryl-2-bromodiazene 1-oxides with HCl in nonaqueous media give aryldiazonium chlorides, while 1,3,3-substituted
triazenes-1 are formed in the reactions with secondary amines. Using 2-{15N} label, it was shown that the aryl group does not migrate in these reactions.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 3, pp. 613–615, March, 1997. 相似文献
3.
A. Yu. Tyurin A. M. Churakov E. L. Goncharova S. L. Ioffe Yu. A. Strelenko V. A. Tartakovsky 《Russian Chemical Bulletin》1995,44(5):901-906
The reaction of 1-aryl-2-alkenyldiazene 1-oxides with HCl yields arylhydrazones of -chloroacyl chlorides, which eliminate HCl to give 1-aryl-2-(1-chloroalken-1-yl)diazenes. The latter add amines, alcohols, and carboxylic acids to give arylhydrazone chlorides with -functional groups.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 928–933, May, 1995.The work was carried out at the Scientific Educational Center of the Institute of Organic Chemistry of the RAS with financial support of the Russian Foundation for Basic Research (Project No. 93-03-18461). 相似文献
4.
S. Yu. Ryabova N. A. Rastorgueva E. A. Lisitsa L. M. Alekseeva V. G. Granik 《Russian Chemical Bulletin》2003,52(6):1386-1398
A number of 1-aryl-2-oxo-1,2,3,6-tetrahydro[1,4]diazepino[6,5-b]indole 4-oxides were synthesized based on 3-[N-aryl-N-(chloroacetyl)amino]-2-formylindoles. The nature of the substituent in the 1-aryl fragment has a pronounced influence on the course of reactions throughout the whole sequence of transformations during the synthesis of diazepinoindoles. The reduction of 4-oxides by formamidinosulfinic acid, hydrogen in the presence of Pd/C, and sodium bisulfite was studied. The structures of the reaction products were confirmed using IR and 1H NMR spectroscopy and mass spectrometry. 相似文献
5.
S. Ayadi M. Abderrabba 《Russian Journal of Physical Chemistry A, Focus on Chemistry》2008,82(7):1080-1085
In this work, we theoretically study Diels-Alder reactions between cyclohexadiene and a series of 2-aryl-4,6-dinitrobenzotriazole
1-oxides (5a-d). Based on various calculation methods such as SCF/6–31G* and DFT/B3LYP with the 6–31G* standard basis set, we discuss the
thermodynamic possibility of these reactions. The reactions between a series of 6-nitrobenzotriazole 1-oxides(5aa
1
-ab
1
) and cyclohexadiene are also studied.
The text was submitted by the authors in English. 相似文献
6.
Gornostaev L. M. Dolgushina L. V. Khalyavina Yu. G. Stashina G. A. Firgang S. I. 《Russian Chemical Bulletin》2011,60(1):157-159
A method was developed for the synthesis of 1H-1-arylnaphtho[2,3-d][1,2,3]triazole-4,9-dione 2-oxides based on 2-arylamino-3-chloro-1,4-naphthoquinones. The reaction of 1H-1-arylnaphtho[2,3-d][1,2,3]triazole-4,9-dione 2-oxides with an ethanolic alkali solution affords 2-{[1-(aryl)-2-oxido-1H-1,2,3-triazol-4-yl]carbonyl}benzoic acids. 相似文献
7.
S. Yu. Ryabova E. Yu. Khmel’nitskaya N. A. Rastorgueva N. B. Grigor’ev V. G. Granik 《Russian Chemical Bulletin》2004,53(12):2830-2833
Electrochemical reduction of 1-aryl-2-oxo-1,2,3,6-tetrahydro[1,4]diazepino[6,5-b]indole 4-oxides, 2-oxo-1-phenyl-1,2,3,6-tetrahydro[1,4]diazepino[6,5-b]indole, and 2-oxo-1-phenyl-1,2,3,4,5,6-hexahydro[1,4]diazepino[6,5-b]indole was studied. The results obtained were compared with previous data for the reduction of 4-oxides with formamidinesulfinic acid.__________Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 12, pp. 2715–2718, December, 2004. 相似文献
8.
N. V. Mel’nichenko A. V. Bentya E. B. Rusanov M. V. Vovk 《Russian Journal of General Chemistry》2015,85(6):1440-1446
Reactions of aryl trifluoromethyl ketone imines with 2-sulfanylacetic and 3-sulfanylpropanoic acids afforded 2-aryl-2-trifluoromethyl-1,3-thiazolidin-4-ones and 2-aryl-2-trifluoromethyltetrahydro-4H-1,3-thiazin-4-ones, respectively. Their subsequent oxidation with hydrogen peroxide gave the corresponding 2-aryl-2-trifluoromethyl-1,3-thiazolidin-4-one 1-oxides and 2-aryl-2-trifluoromethyltetrahydro-4H-1,3-thiazin-4-one 1-oxides and 1,1-dioxides. 相似文献
9.
An efficient and simple method for the synthesis of 2-unsubstituted 1-aryl-4- and 1-aryl-5-acylimidazoles has been developed. It consists in the condensation of α-diketone monooximes with aromatic amines and formaldehyde on the presence of boron trifluoride etherate, leading to the formation of stable boron trifluoride complexes of N-oxides. Further reduction of these complexes led to the corresponding imidazoles. This method permits broad variations of substituents in the aryl part of these compounds. 相似文献
10.
Tomihiro Nishiyama Yasushi Nakai Masataka Kushiyama Etsuo Ikemoto Fukiko Yamada 《Journal of heterocyclic chemistry》1982,19(5):1223-1226
The mass spectral fragmentation of 4-, 5-, and 4,8-disubstituted derivatives of 6-aryl-5,6,7,8-tetrahydro-4H-1,3,2,6-dioxathiazocine 2-oxides is reported. 相似文献
11.
A. A. Dudinov S. A. Woznesensky M. I. Struchkova L. I. Belen'kii M. M. Krayushkin 《Russian Chemical Bulletin》2000,49(5):954-955
Heating 1-aryl-5,5-dichloropenta-2,4-dien-1-ones with 4-bromophenacylpyridinium bromide in AcOH in the presence of AcONH4 gave 2-aryl-6-(4-bromophenyl)-4-(2,2-dichlorovinyl)pyridines. The reaction products were structurally characterized by1H and13C NMR spectroscopy.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 955–957, May, 2000. 相似文献
12.
Interaction of decacarbonyldimanganese and decacarbonyldirhenium with 1-aryl-3-cyanoprop-2-en-1-ones
The reactions of M2(CO)10 (M = Mn, Re) withtrans-1-aryl-3-cyanoprop-2-en-1-ones in the presence of Me3NO proceed with replacement of the CO ligand and lead to complexeseq-(1-aryl-3-cyanoprop-2-en-1-on)nonacarbonyldimanganese andeq-(1-aryl-3-cyanoprop-2-en-1-on)nonacarbonyldirhenium complexes where the metals are bonded with the ligand through the nitrogen atom of the cyanogroup. The treatment of (1-phenyl-3-cyanoprop-2-en-1-on)nonacarbonyldirhenium with a second equivalent of the ligand resulted in the disubstituted complex,eq,eq-bis(1-phenyl-3-cyanoprop-2-en-1-on)octacarbonyldirhenium in a good yield. The structures of the obtained complexes are discussed on the basis of13C,1H NMR, and IR-spectroscopy.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 8, pp. 1485–1487, August, 1994.This work was supported in part by the Russian Foundation for Basic Research (grant No 93-03-4028). 相似文献
13.
Ahluwalia Vinod K. Singh Daljeet Singh Rishi P. 《Monatshefte für Chemie / Chemical Monthly》1985,116(6-7):869-872
Reaction of 2-hydroxybenzophenones (1,3,7,8) with ethoxycarbonyl-methylenetriphenylphosphorane affords 4-aryl-2H-1-benzopyran-2-ones (2,4–6) in excellent yields.
Eine einfache Synthese für 4-Aryl-2H-1-benzopyran-2-one
Zusammenfassung Die Reaktion der 2-Hydroxybenzophenone1,3,7 und8 mit Ethoxycarbonyl-methylentriphenylphosphoran ergab die 4-Aryl-2H-1-benzopyran-2-one2 und4–6 in ausgezeichneten Ausbeuten.相似文献
14.
Some novel unsaturated five-membered organophosphorus heterocyclic compounds, 2-(p-toluenesulfonamido)-4-phenyl-4, 5-dihydro-1H-1, 3, 4-diazaphosphole 4-oxides 8 have been synthesized by Mannich-type reaction of p-toluenesulfonylguanidine with phenyldichlorophosphine and ketones. 相似文献
15.
Treatment of 6-amino-5-arylazo-1,3-dimethyluracils with urea or N,N′-carbonyldiimidazole gave the respective 6-aryl-1,3-dimethyl-6,7-dihydro-6-azalumazin-7-(6H)ones, which were hydrolyzed with alkali to afford 2-aryl-2,3,4,5-tetrahydro-3,5-dioxo-1,2,4-triazine-6-carboxylic acids (1-aryl-6-azauracil-5-carboxylic acids). Thermal decomposition of these carboxylic acids gave the corresponding 2-aryl-1,2,4-triazine-3,5-(2H,4H)diones (1-aryl-6-azauracils). Methylation of the latter with methyl iodide gave the corresponding 2-aryl-4-methyl-1,2,4-triazine-3,5-(2H,4H)diones (1-aryl-3-methyl-6-azauracils). 相似文献
16.
Ayadi S. Essalah K. Abderrabba M. 《Russian Journal of Physical Chemistry A, Focus on Chemistry》2006,80(1):S102-S106
This work deals with the theoretical study of Diels-Alder inverse and normal electron demand reactions. Based on various calculation methods such as SCF/6-31G and DFT/B3LYP with the standard basis set 6-31G, we discuss the possibility of reactions between cyclopentadiene with a series of 2-aryl-4,6-dinitrobenzotriazole 1-oxides from a thermodynamic perspective. 相似文献
17.
A series of new 4-aryl-1,3-dihydro-2H-1,5-benzodiazepine-2-thiones ( 3 ) has been synthesized by condensing the 3,3-dimercapto-1-aryl-2-propen-1-ones with o-phenylenediamine. The structure was established by the results of acid cleavage and by nmr spectra. The alkylation of compounds 3 gave 2-alkylthio-4-aryl-3H-1,5 benzodiazepines ( 10 ). 相似文献
18.
B. V. Paponov O. V. Shishkin S. V. Shishkina R. I. Zubatyuk A. L. Kalyuzhny V. I. Musatov 《Russian Chemical Bulletin》2008,57(3):622-631
6-Aroyl-7-arylindolo[3,4-jk]phenanthridin-5(4H)-ones (2a–i) were synthesized by heating 3-(2-aryl-2-oxoethylidene)-2,3-dihydroindol-2-ones (1a–i) in DMF. Compounds 2a–i are formed via the dimerization of two molecules of unsaturated ketones 1a–i proceeding as the [2+4] cycloaddition through the formation of intermediate spiro adducts. The further Pfitzinger rearrangement,
decarboxylation, and heteroaromatization afford compounds 2a–i. The structures of the reaction products were established by spectroscopic methods and X-ray diffraction.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 3, pp. 609–618, March, 2008. 相似文献
19.
V. N. Kozhevnikov D. N. Kozhevnikov V. L. Rusinov O. N. Chupakhin 《Chemistry of Heterocyclic Compounds》1999,35(4):470-473
Reaction of 6-aryl-3-dimethylamino-1,2,4-triazine 4-oxides with KCN results in constriction of the heterocycle and formation
of 3-amino-5-aryl-4-nitrosopyrazoles. Several methods including labelled K13C15N are used to demonstrate that the reaction proceeds through the ANRORC mechanism.
Dedicated to Professor Henk van der Plas on his 70th birthday.
For No. 2, see [1].
Urals State Technical University, Ekaterinburg 620002, Russia; e-mail: mike@htf.ustu.ru. Translated from Khimiya Geterotsiklicheskikh
Soedinenii, No. 4, pp. 532–535, April, 1999. 相似文献
20.
Constantina P. Hadjiantoniou-Maroulis Vassiliki Ikonomou Evi Parisopoulou 《Journal of heterocyclic chemistry》1996,33(3):655-658
The synthesis and lead tetraacetate oxidation of the title mono- and bis-arylhydrazones to the corresponding 5-acyl-4-aryl(alkyl)-2-aryl-1,2,3-triazole 1-oxides is described. 相似文献