H. O. House, Modern Synthetic Reactions (W. A. Benjamin, Menlo Park, California, 2nd ed., 1972) pp 353-359; K. W. Bentley in Elucidation of Organic Structures by Physical and Chemical MethodsPt. 2, K. W. Bentley, G. W. Kirby, Eds. (Wiley, New York, 2nd ed., 1973) pp 177-185.