1. For reviews on Friedel-Crafts alkylation chemistry see: (a) Olah G A 1964 Friedel-Crafts and related reactions (New York: Wiley-Interscience) vol. II, Part 1
2. Olah G A, Krishnamurti R and Prakash G K S 1991 Friedel-Crafts alkylation in comprehensive organic synthesis (eds) B M Trost and I Fleming (Oxford: Pergamon Press)
3. Roberts R M and Khalaf A A 1984 Friedel-Crafts alkylation chemistry. A century of discovery (New York: Marcel Dekker)
4. Kobayashi S 1994 Synlett. 689
5. Kobayashi S 1995 J. Synth. Org. Chem. Jpn. 53 370