【摘要】 利用 2 -甲基 -1,4萘醌和亚硫酸氢钠为原料 ,合成维生素K3,考察了原料物质的量比、温度、时间对反应的影响。对结晶母液进行了重复利用试验。产品收率可达 75 %以上。更多还原

【Abstract】 Vitamin K 3 is synthesized by using 2-methyl-1,4-naphthoquinone and hydrosulfite of sodium as reactants. The effects of molerotio of reactants, temperature and time on the reaction have been investigated. Experiments have been made to repeatedly make use of crystalliferous liquid. The ratio of product reachs 75%.更多还原