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1.
Cyclization of N-(9,10-dioxo-9,10-dihydroanthracen-1-yl)methanesulfonamides to 2,6-dihydronaphtho[1,2,3-cd]indol-6-ones in DMSO-KOH involves intermediate formation of 2,3-dihydroanthra[1,9-cd]-[1λ6,2]thiazin-7-one 2,2-dioxides, whereas heterocyclization of N-(9,10-dioxo-9,10-dihydroanthracen-1-yl)-ethane- and -arenesulfonamides under analogous conditions occurs with participation of methylsulfonylmethanide. 相似文献
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Gornostaev L. M. Beresnev V. A. Lavrikova T. I. Mezrina I. L. 《Russian Journal of Organic Chemistry》2004,40(4):525-526
S,S-Dimethyl-and S-methyl-S-phenyl-N-(9,10-anthraquinon-1-yl)sulfoximides are converted into 6H-naphtho[1,2,3-cd]indol-6-ones on heating in polar aprotic solvents. 相似文献
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《Tetrahedron letters》1986,27(25):2901-2902
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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
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Vysokova Olga А. Kalinina Tatiana A. Slepukhin Pavel А. Pospelova Tatiana А. Obydennov Konstantin L. Glukhareva Tatiana V. 《Chemistry of Heterocyclic Compounds》2018,54(11):1079-1082
Chemistry of Heterocyclic Compounds - A method for the synthesis of novel 1H-pyrazol-1-yl-1,2,3-thiadiazole derivatives has been proposed and their intramolecular cyclization to... 相似文献
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A. V. Bogatskii R. Yu. Ivanova S. A. Andronati Z. I. Zhilina 《Chemistry of Heterocyclic Compounds》1981,17(4):364-366
A number (seven compounds) of 4,5-dihydropyrrolo[1,2,3-e, f][1,5]benzodiazepin-6(7H)-ones were obtained by condensation of 7-aminoindoles with -halopropionic acid derivatives with subsequent cyclization of the resulting 7-(-halopropionylamino)indoles by heating in the presence of bases in dimethylformamide. The compositions and structures of the intermediates and final products were confirmed by the results of elementary analysis and data from the IR, UV, and mass spectra.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 505–507, April, 1981. 相似文献
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Melnichenko V. E. Kudryavtseva T. N. Grekhneva E. V. Lamanov A. Y. Kudryavcev T. A. 《Russian Journal of General Chemistry》2021,91(10):2114-2117
Russian Journal of General Chemistry - A series of new 2-(6H-indolo[2,3-b]quinoxalin-6-yl)-1-phenylethan-1-ones was synthesized by the reaction of various 6H-indolo[2,3-b]quinoxalines with... 相似文献
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1-(N-Phenacylidene)amino-1,2,3-triazoles 3 react with propionylchloride and phenoxyacetylchloride in the presence of triethylamine to give trans- ( 5 ) and cis- ( 6 ) 1-(1,2,3-triazol-1-yl)-4-aroylaztidin-2-ones in a 1:1 ratio, on the contrary to the 1-(N-arylidene)amino-1,2,3-triazoles, which do not give any reaction product with the same acid chlorides. The spectroscopic characteristics of these new N-triazolyl-β-lactams are also discussed. 相似文献
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H. D. Hollis Showalter Judith L. Johnson Jeanne M. Hoftiezer 《Journal of heterocyclic chemistry》1986,23(5):1491-1501
Synthetic methodologies to a number of 5- and 7-chloroanthra[1,9-cd|pyrazol-6(2H)-ones, 4 and 37 respectively, optionally substituted with side chains at N-2 and dioxy substituents in the A ring, are reported. Reported also are detailed uv, ir and 1H-nmr spectroscopy for representative compounds. 相似文献
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Hakobyan Robert M. Hayotsyan Sargis S. Attaryan Hovhannes S. Melikyan Gagik S. 《Chemistry of Heterocyclic Compounds》2019,55(12):1245-1250
Chemistry of Heterocyclic Compounds - Synthetic approach toward pyridone-substituted furan-2(5H)-ones has been described. Intramolecular cyclization of these compounds leads to novel 7-substituted... 相似文献
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3,5-Disubstituted 4,5-dihydroindeno[1,2-c][1,2]diazepin-6 (1H)-ones ( 3a–g ) were obtained in 29–72% yields by condensing 2-(substituted-2-acylethyl)-1,3-indandiones ( 1a–n ) with hydrazine. The NH group of the indenodiazepinones 3a–g is quite unreactive. Two methods based on the Michael reaction were used for preparing the acylethylindandiones 1a–n : one from 1,3-indandione and chalcone-type compounds and the other from 2-benzylidene-1,3-indandione and acetophenones. The latter method was found more practical and of more general application. 相似文献
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Russian Journal of Organic Chemistry - The title compounds were synthesized in good yields by one-pot four-component condensation of phthaloyl dichloride, ethyl cyanoacetohydrazide, malononitrile,... 相似文献
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E. V. Illenzeer A. A. Aleksandrov M. M. El’chaninov 《Russian Journal of General Chemistry》2013,83(1):95-98
The condensation of 1-hydroxy-2-aminonapnthalene with furoyl chloride in 1-methyl-2-pyrrolidone medium afforded 2-(fur-2-yl)naphtho[2,1-d]oxazole. It was involved in reactions of electrophylic substitution like nitration, bromination, sulfonation, formylation, and acylation. In all cases the substituent enters in position 2 of the furan ring. 相似文献
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Synthetic methodologies for the preparation of substituted 5-nitro- and 5-aminoanthra[1,9-cd]-pyrazol-6(2H)-ones, 4 and 5 respectively, substituted with a basic side at N-2 and dioxy substitution in the A-ring, are reported. These compounds are essentially devoid of activity against in vitro L1210 leukemia and in vivo murine P388 leukemia. 相似文献
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The crystal structure of the title compound (C12H10ClN7OS,Mr=335.78) has been determined by single-crystal X-ray diffraction. The crystal is of triclinic,space group P1 with a=8.4093(11),b=9.4430(12),c=11.1454(14),α=95.508(2),β=111.366(2),γ=115.259(2)°,V=711.42(16) 3,Z=2,Dc=1.568 g/cm3,F(000)=344,μ(MoKα)=0.428 mm-1,the final R=0.0476 and wR=0.1243 for 2353 observed reflections (I > 2σ(I)). The dihedral angles between the pyridine and triazole,thiazole and triazole,and pyridine and thiazole rings are 69.2(1),9.2(1) and 72.7(1)o,respectively. Intramolecular C(8)-H(8B)…O(1) and N(5)-H(5A)…N(4) as well as intermolecular C(5)-H(5)…S(1),C(3)-H(3)…N(6) and N(5)-H(5A)…N(1) hydrogen bonds together with weak C-H…π hydrogen-bonding and π-π stacking interactions contribute to the stability of the structure. There is also evidence for significant electron delocalization in the triazolyl system. 相似文献
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D. Ashok Arram Ganesh B. Vijaya Lakshmi S. Ravi 《Russian Journal of General Chemistry》2014,84(6):1237-1242
Series of new (E)-1-aryl-3-[2-(piperidin-1-yl)quinolin-3-yl]prop-2-en-1-ones and (E)-1-aryl-3-[2-(pyrrolidin-1-yl)quinolin-3-yl]prop-2-en-1-ones have been efficiently prepared via the Claisen-Schmidt condensation of 2-(piperidin-1-yl)quinoline-3-carbaldehyde and 2-(pyrrolidin-1-yl)quinoline-3-carbaldehyde, respectively, with aryl methyl ketones under conditions of ultrasound and microwave irradiation. Structures of the products have been confirmed by IR, 1H NMR, 13C NMR, and mass spectroscopy, as well as by elemental analysis. Evaluation of the in vitro antibacterial activity against bacterial (Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli) and fungal (Aspergillus niger and Candida metapsilosis) strains has revealed good antimicrobial activity of some of the tested compounds. 相似文献
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Mykhaylo V. Vovk Volodymyr A. Sukach Volodymyr V. Pyrozhenko Andriy V. Bol'but 《Heteroatom Chemistry》2006,17(2):104-111
By the reaction of 6-aryl(alkyl)amino-5-cyano-2,3-dihydro-1,3-thiazin-4(10)-ones with α-halogenoketones in the presence of triethylamine, 2,3-dihydrothieno[2,3-d]pyrimidin-4(1H)-ones have been synthesized and their acid-catalyzed recyclization to 2,3-dihydrothieno[3,4-d]pyrimidin-4(1H)-ones has been found and studied. © 2006 Wiley Periodicals, Inc. Heteroatom Chem 17:104–111, 2006; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/hc.20181 相似文献