Design, synthesis and cytotoxic activity of certain novel chalcone analogous compounds
作者:S. El-Meligie、Azza T. Taher、Aliaa M. Kamal、A. Youssef
DOI:10.1016/j.ejmech.2016.09.099
日期:2017.1
of chalcone analogous compounds were designed and synthesized. Replacing/substituting the enone or ethylenic bridge of the parent chalcone with rigid heterocyclic moieties or substituted aromatic amines gave nineteen target compounds. Their cytotoxic activities were screened against both breast and liver cancer cells as well as breast and liver normal cells. Target compounds were also evaluated for
An efficient and practical method for the synthesis of unsymmetricbenzils from readily available β-ketoaldehydes has been developed. Various unsymmetric 1,2-diaryldiketones bearing functional groups have been obtained in good to excellent yields under mild reaction conditions. A plausible mechanism was proposed, and α,α-dichloroketone was considered as the key intermediate. The generation of α,α-dichloroketones
Tandem reaction between chalcone epoxides and 2-naphthyl ethers to construct complex naphtho[2,1-b]furans
作者:Congde Huo、Jinzhu An、Xiaolan Xu、Xiaodong Jia、Xicun Wang、Lisheng Kang
DOI:10.1016/j.tetlet.2012.12.078
日期:2013.2
The reaction of chalcone epoxides with 2-naphthyl ethers can be initiated by stable triarylaminium salt. And after subsequent aerobic oxidative aromatization in one pot, a series of polysubstituted naphtho[2,1-b]furans were delivered.
查尔酮环氧化物与2-萘醚的反应可以通过稳定的三芳基ami盐引发。然后在一个锅中进行好氧氧化芳构化后,输送了一系列多取代的萘并[2,1- b ]呋喃。
Efficient Synthesis of Deoxybenzoins from Chalcones
作者:Paulson Mathew、Daliya Mathew、C. V. Asokan
DOI:10.1080/00397910601130967
日期:2007.3
Abstract β‐Ketoaldehydes derived from chalcone epoxides by Lewis acid–catalyzedrearrangement underwent smooth deformylation when refluxed in tetrahydrofuran (THF) in the presence of ethylenediamine, affording deoxybenzoins in excellent yields. The method is general and useful for the preparation of deoxybenzoins with a variety of substitution patterns.
Friedel–Crafts alkylation between chalcone epoxides and heteroarenes induced by triarylaminium salt
作者:Congde Huo、Xiaolan Xu、Xiaodong Jia、Xicun Wang、Jinzhu An、Chougu Sun
DOI:10.1016/j.tet.2011.10.062
日期:2012.1
Triarylaminiumsalt was disclosed as a highly efficient nonmetallic initiator for the Friedel–Crafts reaction between chalcone epoxides and heteroarenes to construct a series of complex β-heteroaryl α-ketols in mild conditions and with good yields. Chalcone epoxides were presented as valuable halogen-free pre-electrophile in Friedel–Crafts alkylation through the formation of the stabilized benzylic