共查询到20条相似文献,搜索用时 15 毫秒
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Morgalyuk V. P. Strelkova T. S. Kononevich Yu. N. Brel V. K. 《Russian Journal of General Chemistry》2019,89(8):1620-1624
Russian Journal of General Chemistry - Based on 1,3,3,5,5-penta[1-(2,2-dimethyl-1,3-dioxolan-4-yl)methoxy]-1-chlorocyclotriphosphazene, a series of hybrid compounds was obtained by two-step... 相似文献
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Valiullina Z. R. Ivanova N. A. Lobov A. N. Miftakhov M. S. 《Russian Journal of Organic Chemistry》2020,56(11):2043-2047
Russian Journal of Organic Chemistry - Methyl (E)-3-[(4S,5S)-5-acetyl-2,2-dimethyl-1,3-dioxolan-4-yl)]prop-2-enoate obtained from D-ribose eliminates water on storage and transforms into a bicyclic... 相似文献
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Ketalization of benzophenones with epichlorohydrin or 3-chloropropane-1,2-diol gave 2,2-diaryl-4-chloromethyl-1,3-dioxolanes,
which were used to alkylate sodium salts of imid-azole or 1,2,4-triazole. The resulting 1-[(2,2-diaryl-1,3-dioxolan-4-yl)methyl]-1H-azoles exhibit high fungicidal activities.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 940–944, May, 2007. 相似文献
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S. Boyer E. Blazier M. Barabi G. Long G. Zaunius J. W. F. Wasley A. Hamdan 《Journal of heterocyclic chemistry》1988,25(3):1003-1005
A practical synthesis of the title compound 7b is described in seven steps in approximately 10% overall yield. The key step in the synthesis is the formation of the unusual tricyclic ring system 4 via acid catalyzed cyclization. 相似文献
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I. M. Sakhautdinov I. R. Batyrshin A. A. Fatykhov V. M. Yumabaeva K. Yu. Suponitskii M. Yu. Antipin M. S. Yunusov 《Journal of Structural Chemistry》2013,54(2):383-387
The structure of methyl 4-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]-1-methyl-1H-pyrazol-5-carboxylate is determined by X-ray crystallography and further used to elucidate the structure of methyl 4-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]-1-methyl-1H-pyrazol-3-carboxylate, using the data of homo- and heteronuclear 2D NMR correlation spectroscopy. 相似文献
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A very concise synthesis of a potent KDR kinase inhibitor 1 is described. The synthesis features an exceedingly efficient one-pot preparation of the aminothiazole 6 followed by Pd-Xantphos catalyzed cross-coupling with chloropyridine aldehyde 11. Reductive amination of the resulting aldehyde 10 with the piperazine fragment 9 afforded the final product. 相似文献
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Reddy S. Ramakrishna Reddy G. Ganga Reddy Ch. Venkata Ramana Laxminarayana E. 《Russian Journal of Organic Chemistry》2022,58(6):858-864
Russian Journal of Organic Chemistry - A series of new benzamidine derivatives have been synthesized in good yields by involving 1-(1H-benzimidazol-2-yl)-2-bromoethanone,... 相似文献
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1 INTRODUCTION Phthalimide and its derivatives are synthetic mate- rials, which are widely used as important chemical intermediates of biosensors[1] and many drugs such as Citalopran[2], luminal[3], Beta-Lactam[4] and the No. three generation quinolones[5], and they have been identified as active groups of some drugs and chemical luminescence reagents[6, 7]. Tert-butyl 4- [(E)-4-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-1- butenyl] benzoate is an intermediate of a new type of insulin sen… 相似文献
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Thomas J. Greshock 《Tetrahedron letters》2006,47(31):5437-5439
6-(2-Iodoethyl)-2,2-dimethyl-4H-1,3-dioxin has been prepared in five steps from ethyl acetoacetate. A variety of enolates were then alkylated with this iodide. The resulting 6-alkyl-4H-1,3-dioxins were either subjected to further transformations and/or heated (or subjected to a Lewis acid) to effect facile retrocycloaddition reactions. The resulting enones were found to smoothly participate in conjugate addition or olefin metathesis reactions to provide various carbocyclic ring systems. Collectively, these examples document the synthetic equivalency of dioxin 2 with iodoethyl vinyl ketone and, moreover, delineate a strategy for accomplishing the sequential reactions with nucleophiles at the β′, followed by the β electrophilic sites. 相似文献
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The preparation of (+)-(3,3-dimethyl-2-methylenenorbornan-1-yl)methyl methanesulfonate (9) was carried out in 2 steps, dihydroxylation and mesylation, from (−)-2-methylenebornane. Hydrolysis and reduction of 9 gave a fenchyl alcohol (2) and a methylenefenchone (21), respectively. Oxidation of 9 afforded a new analogue (23) of the class of oxatricyclo compounds. Treatment of 9 with NBS resulted in a Wagner-Meerwein rearrangement to produce brominated methylenebornane derivatives (25 and 26), which are also new compounds. 相似文献