Aldol Condensations with Metal(II) Complex Catalysts
作者:Kazuo Irie、Ken-ichi Watanabe
DOI:10.1246/bcsj.53.1366
日期:1980.5
Aldol condensations of aldehydes with ketones catalyzed by the first-row transition metal(II) complexes have been widely studied. Complexes of Co(II), Ni(II), Cu(II), and Zn(II) acetates with 2,2′-bipyridine were effective catalysts to afford cross-aldol condensation products, α,β,-unsaturated ketones, in high yields without any self-condensation products. The reaction of 2-butanone, unsymmetrical aliphatic
已经广泛研究了由第一排过渡金属 (II) 配合物催化的醛与酮的羟醛缩合反应。Co(II)、Ni(II)、Cu(II) 和 Zn(II) 醋酸盐与 2,2'-联吡啶的配合物是提供交叉羟醛缩合产物 α,β,-不饱和酮的有效催化剂。没有任何自缩合产物的高产率。2-丁酮(不对称脂肪族酮)与苯甲醛的反应发生区域选择性,得到碱催化型产物。
Organocatalytic regioselective asymmetric Michael addition of azlactones to o-hydroxy chalcone derivatives
作者:Shao-Yun Zhang、Gui-Yu Ruan、Zhi-Cong Geng、Nai-Kai Li、Ming Lv、Yong Wang、Xing-Wang Wang
DOI:10.1039/c5ob00121h
日期:——
enantioselective Michaeladdition between azlactones and o-hydroxy chalcone derivatives is reported. Enantiomerically enriched N,O-aminals with two continuous stereogenic centers are exclusively obtained in moderate to good yields with excellent diastereoselectivities and good to excellent enantioselectivities. The experimental results show that an o-hydroxy group on the cinnamenyl motif of chalcone derivatives
A large series of chalcones were synthesized and studied for activity against Candida albicans. The SAR analysis showed that the antifungal activity was highly dependent on the substitution pattern of the aryl rings and correlated to a large extent with the ability of compounds to interact with sulfhydryl groups. The most active were the hydroxylated chalcones as their activity related to the location
Combined 3D-QSAR and docking analysis for the design and synthesis of chalcones as potent and selective monoamine oxidase B inhibitors
作者:Marco Mellado、César González、Jaime Mella、Luis F. Aguilar、Dolores Viña、Eugenio Uriarte、Mauricio Cuellar、Maria J. Matos
DOI:10.1016/j.bioorg.2021.104689
日期:2021.3
was corroborated by studying twenty-three synthetized chalcones (151–173) based on the generated information. All the synthetized molecules proved to inhibit MAO-B, being ten out of them MAO-B potent and selective inhibitors, with IC50 against this isoform in the nanomolar range, being (E)-3-(4-hydroxyphenyl)-1-(2,2-dimethylchroman-6-yl)prop-2-en-1-one (152) the best MAO-B inhibitor (IC50 of 170 nM).
Inhibition of Caco-2 and MCF-7 cancer cells using chalcones: synthesis, biological evaluation and computational study
作者:Marco Mellado、Mauricio Reyna-Jeldes、Caroline Weinstein-Oppenheimer、Claudio Coddou、Carlos Jara-Gutierrez、Joan Villena、Luis F. Aguilar
DOI:10.1080/14786419.2021.1984465
日期:2022.9.2
development of novel anticancer agents derived from natural sources, like chalcone derivatives. For this investigation, twenty-three chalcones (4a-w) were synthesized and evaluated as antiproliferative agents against MCF-7 and Caco-2cells, finding three and two compounds with similar or higher antiproliferative activity than daunorubicin, while only two chalcones showed better selectivity indexes than