Enantioselective Synthesis of Trifluoromethyl α,β-Unsaturated δ-Lactones via Vinylogous Aldol-Lactonization Cascade
作者:Simone Crotti、Nicola Di Iorio、Andrea Mazzanti、Paolo Righi、Giorgio Bencivenni
DOI:10.1021/acs.joc.8b01672
日期:2018.10.19
by a bifunctional tertiary amine, provides an efficient application of the vinylogous reactivity of alkylidene oxindoles for the preparation of enantioenriched trifluoromethylated α,β-unsaturated δ-lactones.
Lewis acid-promoted direct synthesis of N-unsubstituted hydrazones via the reaction of hydrazine with acetophenone and isatin derivatives
作者:A. S. El-Azab、H. A. Ghabbour、W. M. El-Husseiny、A. R. Maarouf、M. A. Mohamed、A. A.-M. Abdel-Aziz
DOI:10.1134/s1070363216120471
日期:2016.12
Hydrazones 2–22 were synthesized via the reaction of acetophenone with isatin derivatives and anhydrous hydrazine promoted by BF3 as a Lewis acid at 0°C. Structures of the synthesized hydrazones were determined on the basis of NMR and X-ray crystallographic analyses.
Synthesis and anti‐inflammatory activity of diversified heterocyclic systems
作者:Ahmed Bari、Daniel Grenier、Jabrane Azelmat、Saeed Ali Syed、Abdulrahman M. Al‐Obaid、Eric C. Hosten
DOI:10.1111/cbdd.13576
日期:2019.10
In continuation with our research program on the development of novel bioactive molecules, we report herein the design and synthesis of a series of diversified heterocycles (4-22). The synthesized compounds were evaluated for their anti-inflammatoryactivity. The chemical structures of the newly synthesized compounds have been confirmed by NMR, FTIR, and microanalysis.
Synthesis and pharmacological screening of new isatin-3-[N2-(benzimidazol-1- acetyl)]hydrazone
作者:B. Chaithanya、I. V. Kasiviswanath、D. P. Chary
DOI:10.4314/bcse.v33i2.12
日期:——
compounds were screened for antimicrobial, antioxidant and cytotoxic activity. Some of the new compounds showed promising antibacterial and antifungalactivity. KEY WORDS : Antibacterial activity, Antifungalactivity, Antioxidant activity, Cytotoxic activity, Benzimidazole, Isatin Bull. Chem. Soc. Ethiop. 2019 , 33(2), 321-329. DOI: https://dx.doi.org/10.4314/bcse.v33i2.12
20种新型的isatin-3- [N 2-(苯并咪唑-1-乙酰基)] azo(IV)是由十种不同的isatin-3- [N 2-(氯乙酰基)] azo(III)与苯并咪唑和2-反应生成的。甲基苯并咪唑。所述中间体是从靛红hydr(II)与氯乙酰氯缩合获得的。这些化合物通过IR,1 H NMR和质谱表征。筛选所有化合物的抗微生物,抗氧化剂和细胞毒性活性。一些新化合物显示出令人鼓舞的抗菌和抗真菌活性。关键词:抗菌活性,抗真菌活性,抗氧化活性,细胞毒性活性,苯并咪唑,伊斯丁牛。化学 Soc。埃塞俄比亚。2019,33(2),321-329。DOI:https://dx.doi.org/10.4314/bcse.v33i2.12
New method for the preparation of 3-diazo-1,3-dihydroindol-2-ones
作者:V. M. Muzalevskiy、E. S. Balenkova、A. V. Shastin、A. M. Magerramov、N. G. Shikhaliev、V. G. Nenajdenko
DOI:10.1007/s11172-011-0359-5
日期:2011.11
A new method for the preparation of diazo compounds of 2-indolinone series by oxidation of isatin hydrazones with polyhaloalkanes in the presence of copper salts in catalytic amounts was developed.