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101.
Bin-Long Sun Ying-Ying Wang Sen Yang Min-Ting Tu Ying-Ying Shao Yi Hua Yi Zhou Cheng-Xia Tan 《Molecules (Basel, Switzerland)》2022,27(12)
To develop new compounds with high activity, broad spectrum and low-toxicity, 17 benzamides substituted with quinoline-linked 1,2,4-oxadiazole were designed using the splicing principle of active substructures and were synthesized. The biological activities were evaluated against 10 fungi, indicating that some of the synthetic compounds showed excellent fungicidal activities. For example, at 50 mg/L, the inhibitory activity of 13p (3-Cl-4-Cl substituted, 86.1%) against Sclerotinia sclerotiorum was superior to that of quinoxyfen (77.8%), and the inhibitory activity of 13f (3-CF3 substituted, 77.8%) was comparable to that of quinoxyfen. The fungicidal activities of 13f and 13p to Sclerotinia sclerotiorum were better than that of quinoxyfen (14.19 mg/L), with EC50 of 6.67 mg/L and 5.17 mg/L, respectively. Furthermore, the acute toxicity of 13p was 19.42 mg/L, classifying it as a low-toxic compound. 相似文献
102.
M. S. Shvartsberg A. V. Piskunov M. A. Mzhel'skaya A. A. Moroz 《Russian Chemical Bulletin》1993,42(8):1357-1363
A general method for the synthesis of substituted fused polycyclic compounds containing a 4-alkylamino or 4-dialkylaminopyridine cycle has been proposed. The method includes the addition of primary or secondary amines to vicinal (acylethynyl)arylamines followed by the cyclization of the adducts under acidic or basic catalysis conditions. Various aminonaphthoquinolinediones and aminoquinolines have been prepared in high yields by this method.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 8, pp. 1423–1429, August, 1993. 相似文献
103.
104.
-丁基-甲基咪唑硫酸氢盐离子液体与含氮化合物相互作用的理论研究 《燃料化学学报》2018,46(11):1386-1391
采用密度泛函理论方法研究了1-丁基-3-甲基咪唑硫酸氢盐离子液体[Bmim]HSO_4与氮化物喹啉和吲哚分子的相互作用,并进行了NBO和AIM分析。[Bmim]HSO_4离子对最稳定结构表明,[HSO_4]~-阴离子中的氧原子与咪唑环中正电性较大的C14-H20之间有较强的氢键作用。在分子水平上,NBO和AIM分析证实了喹啉和吲哚分子与[Bmim]HSO_4的阴离子之间有较强的相互作用,其中,喹啉分子中的氮原子与阴离子[HSO_4]~-中氢原子之间的作用以及吲哚分子中N-H的氢原子与[HSO_4]~-中氧原子之间的作用是该离子液体能够有效脱除氮化物的主要动力。 相似文献
105.
Shahram Mehdipour-Ataei Samal Babanzadeh Ebrahim Abouzari-Lotf Samaneh Khodami 《Soft Materials》2018,16(4):265-274
A new diamine was prepared via reaction between 8-hydroxy-5-nitroquinoline and 4-nitrobenzoyl chloride, followed by reduction of the nitro groups of the resulted compound. Novel quinoline-based poly(ester-amide)s were produced through polycondensation reactions of the prepared diamine with different diacid chlorides. The monomer and poly(ester-amide)s were characterized and properties of the polymers including solution viscosity, thermal behavior and stability, solubility, and crystallinity were studied.High thermal stability and improved solubility was observed for the polymers, indicating successful designing of monomer and related polymers for overcoming the main issue of thermally stable polymers, i.e. the problem of increasing solubility versus high thermal stability.Also, by changing the diacid chlorides for the preparation of poly(ester-amide)s, the structure-property relations were investigated. 相似文献
106.
Determination of unsulphonated quinoline yellow in soft drinks by solid-phase spectrophotometry 总被引:1,自引:0,他引:1
Luis F. Capitán-Vallvey Ignacio de Orbe Sonia López-Rodríguez Ramiro Avidad 《Mikrochimica acta》1995,117(3-4):129-135
A spectrophotometric method for determination of quinoline yellow spirit soluble (QYSS) in the presence of sulphonated quinoline yellow water soluble (QYWS) in soft drinks at trace levels is reported. The method is based on the fixation of QYSS on C-18 silica gel, followed by measurement of its absorbance at = 418 nm in the solid phase after being packed in a 1-mm cell. The applicable concentration range was 1.5–15.0 ng/ml, the detection limit 0.4ng/ml and the relative standard deviation 5.2%. The method was applied satisfactorily to the determination of this compound in samples of commercial soft drinks. 相似文献
107.
Adil A. Gobouri Naif A. Alshanbari Mosselhi A. M. Mohamed 《Phosphorus, sulfur, and silicon and the related elements》2020,195(3):211-217
AbstractEthylcarboxylate and acetyl selenoloquinoline derivatives were prepared in a one pot synthesis via reaction of sodium hydrogen selenide and 2-chloro-3-cyano-4-methylquinoline followed by reactions with ethyl chloroacetate and chloro acetone respectively which used as precursors to synthesize many of tetra and pentacyclic systems. A new series of pyrimido [4′,5′:4,5]selenolo[2,3-b]quinoline, thiazino[2’,3’:4,5]selenolo[2,3-b]quinoline, oxazino[2',3':4,5]selenolo[3,2-b]quinoline, pyrido[2′,3′:4,5]selenolo[2,3-b]quinoline, pyrido[2′,3′:4,5]selenolo[2,3-b]quinoline-2-substituted selenyl and selenolo[2′,3′:5,6]pyrido[2″,3″:4,5]selenolo[2,3-b]quinoline derivatives were prepared. Elemental analysis, IR, 1H NMR, 13C NMR and mass spectra confirmed the structures of the newly synthesized compounds. 相似文献
108.
109.
S. A. Yamaskhin G. A. Romanova E. A. Oreshkina N. V. Zhukova 《Chemistry of Heterocyclic Compounds》2006,42(1):77-85
It has been shown that the condensation reaction of 5-amino-2,3-dimethyl-and 1,2,3-trimethylindoles with 4,4,4-trifluoroacetoacetic
ester occurs either via the trifluoromethylcarbonyl or the ester group depending upon the conditions under which it is carried
out. Under thermal conditions (refluxing in diphenyl) the enaminocrotonates formed are readily converted to pyrrolo[3,2-f]quinolines
and the amides cyclize in trifluoroacetic acid at 78°C to give pyrrolo[2,3-g]quinolines.
__________
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp. 86–96, January, 2006. 相似文献
110.
Data on the production and the reactions of quinoline aldoximes and ketoximes and their derivatives are reviewed. The synthesis of new heterocycles based on quinoline oximes is examined separately. The main results from investigation of the biological activity of quinoline oximes are presented.__________Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 163–190, February, 2005. 相似文献