MCM-41-Accelerated PWA Catalysis of Friedel-Crafts Reaction of Indoles and Isatins

Figure 1

The SEM of pure MCM-41 (a), fresh catalyst 60 wt% PWA/MCM-41 (b), used catalyst 60 wt% PWA/MCM-41 (c), and EDS spectrum and elemental contents of the region A in (d), region B in (e), and region C in (f).

(a)

(b)

(c)

(d)

(e)

(f)