1. Carey, F. A.; Sunberg, R. J.Advanced Organic Chemistry Part A: Structure and Mechanisms, 3rd ed.; Plenum Press: New York, 1990; p 439−444.
2. Streitwieser, A, Jr.; Heathcock, C. H.Introduction to Organic Chemistry; Macmillan Publishing Co. Inc. New York, 1976; p 368−378.