1. Stereochemistry of Organic Compounds;Eliel,1994
2. (a) Bloomfield, J.; Qwsley, D. C.; Nelke, J. M. Org. React. 1976, 23, 1, 259.
3. (b) McElvain, S. M. Org. React. 1948, 4, 256.
4. (c) Finley, K. T. Chem. Rev. 1964, 64, 573.
5. (a) Schräpler, U.; Rühlmann, K. Chem. Ber. 1964, 97, 1383.