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1.
Benzo- and pyridoannulated 1,2-dithiole-3-thiones react with compounds containing an activated methyl group such as 1-methyl-3,4-dihydropyrrolo[1,2-a]pyrazine and 2-methylpyridines to furnish substituted 1,2-dithiol-3-ylidenes. 相似文献
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Sylvie PaillouxCornel Edicome Shirima Eileen N. DueslerKaren Ann Smith Robert T. Paine 《Polyhedron》2011,30(16):2746-2757
Syntheses for [(diphenylphosphinoyl)methyl]-4,5-dihydrooxazole (2) and [(diarylphosphinoyl)methyl]benzoxazoles [aryl = phenyl (3), tolyl (4), 2-trifluoromethylphenyl (5) and 3,5-bis(trifluoromethyl)phenyl (6)] have been developed. Each ligand has been characterized by spectroscopic methods and single crystal X-ray diffraction analyses have been completed for 2, 3, 4 and 5. The coordination chemistry of the ligands with Nd(NO3)3 and Yb(NO3)3 has been examined and structure determinations for [Nd(2)2(NO3)3(CH3OH)], [Nd(2)2(NO3)3], [Yb(3)2(NO3)3(H2O)]·0.5(CH3OH), [Nd(3)2(NO3)3]·3(CHCl3), [Nd(4)2(NO3)3(H2O)], [Yb(4)2(NO3)3(H2O)] and [Yb(5)2(NO3)3(H2O)]·0.5(CH3CN) are reported. Depending upon conditions, the ligands act as monodentate PO or bidentate, chelating PO,N donors. 相似文献
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A. I. Tolmachev V. V. Kurdyukov Yu. G. Vlasenko A. N. Chernega 《Russian Journal of General Chemistry》2013,83(11):2088-2094
Two new dyes have been prepared, 3,4-bis[(2,6-di-tert-butyl-4H-pyran-4-ylidene)methyl]-cyclobut-3-ene-1,2-dione and -1,2-dithione. Their molecular and crystal structures have been studied by X-ray diffraction, and their spectral properties have been characterized. The heterocyclic fragments in the dyes molecules are in the trans-position with respect to the bonds connecting chromophore CH group with the 4-membered ring. Substitution of the carbonyl oxygen to sulfur leads to change in the crystal packing. 相似文献
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Bis{2-[(2,4-dichloro-phenylimino)-methyl]-4,6-diiodo-phenol}-copper(II) (1) has been synthesized and its structure determined by X-ray diffraction. It crystallizes in the monoclinic system, space group P2 1 /n with a=14.7558(17), b=20.770(2), c=20.3260(19) , β=90.6110(10)°, V=6229.2(11) 3 and Z=8. The Cu atom is surrounded by two O atoms and two N atoms from two 2-[(2,4-dichloro-phenylimino)-methyl]-4,6-diiodo-phenol molecules to form a tetrahedral coordination environment. The complex is linked into a column by weak intermolecular interactions. 相似文献
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Ivanova A. L. Kanevskaya I. V. Fedotova O. V. 《Russian Journal of Organic Chemistry》2019,55(8):1231-1233
Russian Journal of Organic Chemistry - The reactions of 4-[(1-oxo-3,4-dihydro-2H-naphmalen-2-ylidene)methyl]benzoic acid with 3-(1,3-dioxobutane-1-yl)-2H-chromen-2-one in the presence of... 相似文献
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E. M. Gibadullina T. R. Shaekhov V. V. Syakaev A. R. Burilov M. A. Pudovik 《Russian Chemical Bulletin》2012,61(7):1502-1504
A reaction of 1,3-dimethoxybenzene with dimethyl (3,5-di-tert-butyl-4-oxocyclohexa-2,5-dienylidenemethyl)phosphonate gave rise to 1,3-bis[(3,5-di-tert-butyl-4-hydroxyphenyl)-(dimethoxyphosphoryl)methyl]-4,6-dimethoxybenzene, which was oxidized to 1,3-bis[(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dienylidene)(dimethoxyphosphoryl)methyl]-4,6-dimethoxy-benzene. 相似文献
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Electrochemical Synthesis of 2-(2-Chlorophenyl)-2-[(3,4- dihydroxyphenyl)(methyl)amino]cyclohexanone
Najafi M. Lajvardi M. M. Youseftabar-Miri L. Ameri M. Ghaderi O. 《Russian Journal of Electrochemistry》2018,54(12):1278-1283
Russian Journal of Electrochemistry - Electrochemical oxidation of catechol has been studied in the presence of ketamine as a drug in phosphate buffer solution mixed with ethanol using voltammetric... 相似文献
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WANG Feng-Wu ② WEI Yi-Jun ZHU Qi-Yong 《结构化学》2006,25(10):1179-1182
1 INTRODUCTION Schiff base ligands have played an important role in the development of coordination chemistry as they readily form stable complexes with most metal ions[1~4]. These complexes are very interesting in many fields, such as catalysis and enzymatic reac- tions[5, 6], magnetism and molecular architectures[7~9]. The complexes derived from the similar tridentate Schiff base ligand 2-[(2-dimethylaminoethylimino)- methyl]phenol[10, 11] and its derivatives[12~14] have been widely … 相似文献
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Grace A. Bennett Patricia A. Swift George B. Mullen Stanley D. Allen Jeffrey T. Mitchell Wendy E. Jones Vassil St. Georgiev 《Journal of heterocyclic chemistry》1989,26(6):1729-1734
The synthesis and antifungal activity of a novel series of 3-aryl-5-[(aryloxy)methyl]-3-[(1H-1,2,4-triazol-1-yl)-methyl]-2-methylisoxazolidines are described. The in vitro activity was evaluated in solid agar cultures against a variety of dermatophytes and yeast fungi, while in vivo activity was measured in an immune-compromised mouse model of systemic candidiasis. The activity of the title series was compared to that of ketoconazole and one derivative, the cis-3-(4-chlorophenyl)-5-(4-chlorophenyloxy)methyl analogue 5f was found to possess a similar potency in the in vivo assay. Structure-activity relationship correlations are also discussed. 相似文献
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Some 2-substituted 5-(1,3-dithiolan-2-ylidene)-1,3-dioxane-4,6-dione derivatives 3 were prepared from the condensation reaction of 1,3-dithiolan-2-ylidenemalonic acid ( 2 ) with carbonyl compounds in 40–93% yields. 相似文献
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Baeva L. A. Biktasheva L. F. Nugumanov T. R. Fatykhov A. A. 《Russian Journal of Organic Chemistry》2021,57(12):1948-1954
Russian Journal of Organic Chemistry - Previously unknown 5-alkyl-1,3-bis[(alkylsulfanyl)methyl]-1,3,5-triazinan-2-ones have been synthesized by three-component condensation of available... 相似文献
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F. A. Gimalova G. M. Khalikova V. A. Egorov A. G. Mustafin M. S. Miftakhov 《Russian Chemical Bulletin》2013,62(5):1227-1231
Methyl (2E,4S,5S)-5-hydroxy-6-mesyloxy-2-methyl-4-(pent-3-yloxy)hex-2-enoate was synthesized from l-tartaric acid. Attempted substitution of the mesyloxy group by the reaction with NaN3 directly led to methyl (E)-2-[(3S,4S)-4-hydroxy-3-(pent-3-yloxy)pyrrolidin-2-ylidene]propanoate. The latter on treatment with CF3COOH and then NaOH gave methyl (2E)-2-methyl-4-[(S)-oxiran-2-yl]-4-(pent-3-yloxy)but-2-enoate. 相似文献
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Conclusions Methods have been developed for the preparation of the simplest fluorine-containing phenyltriazine, viz., 2-trifluororaethyl-4,6-diphenyl-1,3,5-triazine, in virtually quantitative yield.Translated from Izvestiva Akademii Nauk SSSR, Seriya Khimieheskaya, No. 4, pp. 919–920, April, 1986. 相似文献
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Zeyrek C. T. Boyacıoğlu B. Demir N. Tümer Y. Kiraz A. Ünver H. Yıldız M. 《Russian Journal of General Chemistry》2021,91(2):279-284
Russian Journal of General Chemistry - In the present study, a Schiff base (E)-2-[(3,5-bis(trifluoromethyl)phenylimino)methyl]-4,6-dichlorophenol has been synthesized. Its spectroscopic and X-ray... 相似文献