1: formaldehyd; cyclopenta-1,3-diene With ammonium chloride in water T=20°C; 17 h; 2: di-tert-butyl dicarbonate With sodium hydroxide T=20°C; pH=8; 7 h; Further stages.;
参考文献
Basha, Anwer; Bunnelle, William H.; Dart, Michael J.; Gallagher, Megan E.; Ji, Jianguo; Li, Tao; Pace, Jennifer M.; Ryther, Keith B.; Tietje, Karin R.
Patent: US2005/65178 A1, 2005 ;
Location in patent: Page/Page column 19 ;