1: With sodium hydroxide; water Heating / reflux; 2: With hydrogenchloride in water T=20°C; pH=1 - 2;
参考文献
Hadida Ruah, Sara S.; Grootenhuis, Peter D.J.; Van Goor, Frederick; Zhou, Jinglan; Bear, Brian; Miller, Mark T.; McCartney, Jason; Numa, Mehdi Michel Jamel
Patent: US2007/244159 A1, 2007 ;
Location in patent: Page/Page column 139 ;