一种新的酸性纳米催化系统,氨基磺酸官能化的Fe 3-x的Ti X Ò 4的磁性纳米颗粒(的MNP),是通过铁的一锅反应合成的3-X的Ti X Ò 4用3-氯丙基三甲氧基硅烷和咪唑烷-2,4-二酮的MNP,然后用氯磺酸官能化。通过几种分析方法建立了这种新合成的纳米催化剂的结构,包括傅立叶变换红外(FTIR)和能量分散X射线(EDX)光谱,透射(TEM)和扫描(SEM)电子显微镜,热重(TG) ),X射线衍射(XRD)和振动样品磁力计(VSM)。为了合成六氢喹啉衍生物,在芳族醛,二甲酮,乙酰乙酸烷基酯和乙酸铵之间的一锅四组分缩合反应中评估了该纳米催化剂的潜在催化能力。该反应在无溶剂条件下顺利进行,成功地提供了极佳的相应六氢喹啉收率。
Résumé A facile and efficient synthesis of hexahydroquinoline derivatives (5a–o) was reported via a four-component condensation reaction of aldehydes, dimedone, methyl aceto acetate and ammonium acetate in the presence of Triton X-100 in water at room temperature. The use of just 20 mol % of Triton X-100 in water solvent is sufficient. The FT-IR, 19F NMR, 1H NMR, 13C NMR spectra and elemental analysis confirm the structure of the compounds.
recycled after use. Herein we have synthesized 1,4-diazabicyclo[2.2.2]octane (DABCO)-based ionicliquids with fluoride anion, hence DABCO-C5-F and DABCO-C7-F, containing C5 and C7 alkyl chains respectively, were synthesized and characterized. Thermal studies (TGA/DSC) were also carried out to find out the decomposition temperature (and hence the working temperature range) of the ionicliquids. Moreover
Novel Pyran and Polyhydroquinoline Derivatives: Inhibiting Human Osteosarcoma Activity
作者:X.-X. Fan、P. Shen、X.-H. Zhou
DOI:10.1134/s1070363218060336
日期:2018.6
A series of pyran 1-6 and polyhydroquinoline derivatives 7-9 are synthesized targeting anticancer agents for clinical trials. Their structures are characterized by IR, H-1 NMR, and HRMS spectra, and single crystal X-ray crystallography. Their anticancer activity against four human osteosarcoma cells (Saos-2, MG-63, 143B, and U2-OS) is evaluated in vitro using the MTT assay. The compounds 7-9 demonstrate high anticancer activity against the four cancer cells.
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