An Easy Access to Oxime Ethers by
<scp>Pd‐Catalyzed</scp>
C—O
<scp>Cross‐Coupling</scp>
of Activated Aryl Bromides with Ketoximes and Chalcone Oximes
作者:Reeta、T. M. Rangarajan、Raj Pal Singh、R. P. Singh、Manjula Singh
DOI:10.1002/cjoc.201900540
日期:2020.8
An efficient Pd‐catalyzed method for C—O cross‐coupling of ketoximes and chalcone oximes with activated arylbromides and bromo‐chalcones has been developed. All oxime ethers were obtained in good to excellent yields by [(π‐allyl)PdCl]2/t BuXPhos (L7 ) catalyst system. TrixiePhos (L11 ) was also found to be effective for the oxime coupling. This method offers an easy and smooth coupling of chalcone
已经开发了一种有效的钯催化的方法,用于酮肟和查尔酮肟与活化的芳基溴化物和溴代查耳酮的C-O交叉偶联。通过[(π-烯丙基)PdCl] 2 / t BuXPhos(L7)催化剂体系可以很好地获得所有肟醚。还发现TrixiePhos(L11)对于肟耦合有效。该方法提供了查耳酮肟与活化的芳基溴化物和溴查耳酮的轻松,平滑的偶联,这是以前没有探索过的。
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