Anti-oxidant activities of curcumin and related enones
作者:Waylon M. Weber、Lucy A. Hunsaker、Steve F. Abcouwer、Lorraine M. Deck、David L. Vander Jagt
DOI:10.1016/j.bmc.2005.03.035
日期:2005.6
anti-oxidant properties. There are conflicting reports concerning the structural/electronic basis of the anti-oxidant activity of curcumin. Curcumin is a symmetrical diphenolic dienone. A series of enone analogues of curcumin were synthesized that included: (1) curcumin analogues that retained the 7-carbon spacer between the aryl rings; (2) curcumin analogues with a 5-carbon spacer; and (3) curcumin
Regioselective mono-aza-Michael additions of divinyl ketones with 3-(arylimino)indolin-2-ones: Synthesis of N-enone-functionalized 3-(arylimino)indolin-2-ones
作者:Xiao Chen、Zheng Li
DOI:10.1177/1747519820920179
日期:2020.11
Selective mono-aza-Michael additions of divinyl ketones with 3-(arylimino)indolin-2-ones in the presence of cesium carbonate are described. N-Enone-functionalized 3-(arylimino)indolin-2-ones were efficiently synthesized in satisfactory yield. The salient features of this protocol are high regioselectivity, high yield, and mild conditions.