Ru(II)‐catalyzed oxidative CH activation/annulation of 4‐arylquinazolinones with propargylic alcohol derivatives has been developed for the regioselective construction of 3‐phenyl‐2‐(prop‐1‐en‐2‐yl)‐l’ H ‐spiroindene‐1,4′quinazolin‐2′(3′ H )‐one frameworks in high yields with wide functional group tolerance.
Karthik et al. (Fri,) studied this question.