1: With propionaldehyde dimethyl acetal; sulfuric acid; sodium carbonate T=20°C; 0.833333 h; 2: With sodium hydroxide in methanol T=20°C; 18 h; 3: With citric acid pH=4;
参考文献
van Duzer, John H.; Michaelis, Arthur F.; Geiss, William B.; Stafford, Douglas G.; Raker, Joseph; Yu, Xiang Y.; Siedlecki, James M.; Yang, Yingfei
Patent: US2005/197333 A1, 2005 ;
Location in patent: Page/Page column 44 ;