1. (a) Morrison, R. T.; Boyd, R. N.Organic Chemistry, 3rd ed.; Allyn and Bacon: Boston, 1973; pp 186−187.
2. (b) Streitweiser, A., Jr.; Heathcock, C. H.Introduction to Organic Chemistry, 2nd ed.; Macmillan: New York, 1981; pp 307−311.
3. (c) Vollhardt, K. P. C.; Shore, N. E.Organic Chemistry, 2nd ed.; W. H. Freeman: New York, 1994; pp 423−425.
4. (d) Carey, F. A.; Sundberg, R. J.Advanced Organic Chemistry. Part B: Reactions and Synthesis, 3rd ed.; Plenum Press: New York, 1990; pp 176−177.