1. T. Greene and P. G. M. Wuts, Protective Groups in Organic Synthesis, 3rd ed., John Wiley & Sons, New York, 1999.
2. P. J. Kocienski, Protecting Groups, G. Thieme, Stuttgart, 1994.
3. J. F. W. McOmie, ed., Protective Groups in Organic Synthesis, Plenum Publishers, New York, 1973.
4. T. A. Hase, ed., Umpoled Synthons: A Survey of Sources and Uses in Synthesis, John Wiley & Sons, New York, 1987.
5. A. Dondoni, ed., Advances in the Use of Synthons in Organic Chemistry, Vols. 1–3. JAI Press, Greenwich, Connecticut, 1993–1995.