1. US 9.284.387 (2016 ExxonMobil); US 8.580.990 (2013); US 8.529.865 (2013 BASF); US 8.188.302 (2012); WO 98/00.399 (1998 DuPont); WO 05/077.885 (2005 Yale); Steinborn Chapter 12; Caprio/Williams Chapter 2.8;
2. Oro/Claver; Zulys; Cornils/Herrmann‐3 p.513;
3. Beller/Bolm Vol. 2 p.318;
4. Togni‐3 p.91;