The present invention relates to new pyrazolinone scavengers of free radicals, pharmaceutical compositions thereof, and methods of use thereof.
Ruthenium(II)-Catalyzed Oxidative Double C–H Activation and Annulation Reaction: Synthesis of Indolo[2,1-<i>a</i>]isoquinolines
作者:Somadrita Borthakur、Bipul Sarma、Sanjib Gogoi
DOI:10.1021/acs.orglett.9b02871
日期:2019.10.4
The first metal-catalyzed double aryl C(sp2)-H bond activation of antipyrine and alkyne annulation reaction is reported. This Ru(II)-catalyzed reaction was accomplished in the presence of 20 mol % phosphine ligand tricyclohexylphosphine tetrafluoroborate to afford indolo[2,1-a]isoquinolines that are very important compounds because of their bioactivity and interesting optical properties.