1. Recent Advances in Isocyanate Chemistry
2. , , in Methoden Org. Chem. (Houben-Weyl), 4. Aufl. 1952-, Band E4, 1983, S. 738.
3. , , Deutsche Patentanmeldung P 19526081.3, 1995.
4. , Protective Groups in Organic Synthesis, 2. Aufl., Wiley, New York, 1991, Kap. 7, S. 309;
5. Protecting Groups, Thieme, Stuttgart, 1994, Kap. 6, S. 185.