Sj. Barlow et al., EXPLANATION OF AN UNUSUAL SUBSTITUENT EFFECT IN THE BENZYLATION OF ANISOLE AND IDENTIFICATION OF THE ORIGIN OF THE ACTIVE-SITES IN CLAYZIC, Tetrahedron letters, 34(20), 1993, pp. 3339-3342
The surprisingly low reaction rate of anisole (compared to benzene) to
wards ''Clayzic'' catalysed Friedel-Crafts benzylation at ambient temp
erature, has been explained and used to show the presence and identify
the origin of, both Bronsted and Lewis acid sites in ''Clayzic''.