... Organic Letters. ... (1) (a) Olah, GA Friedel−Crafts Chemistry; Wiley-Interscience: London, 1973. There is no corresponding record for this reference. (b) Heaney, H. In Comprehensive Organic Synthesis; Trost, BM, Fleming, I., Eds.; Pergamon Press: Oxford, 1991; Vol. 2, p 773. ...