申请人:Lonza, Ltd.
公开号:US04064126A1
公开(公告)日:1977-12-20
A process for the trichloroacetyl of orotic acid which comprises (a) converting trichloroacetyl chloride to .gamma., .gamma., .gamma.-trichloroacetoacetyl chloride with ketene, (b) adding reaction mixture (a) to urea dissolved in a polar organic solvent, e.g., acetic acid, 6-trichloromethyluracil being produced, (c) separating the 6-trichloromethyluracil from reaction mixture (b), and (d) hydrolyzing the 6-trichloromethyluracil to orotic acid.
一种三氯乙酰基乌味酸的过程,包括(a)将三氯乙酰氯转化为γ,γ,γ-三氯乙酰乙酰氯与酮,(b)将反应混合物(a)加入到极性有机溶剂,例如乙酸中溶解的尿素中,生成6-三氯甲基尿嘧啶,(c)从反应混合物(b)中分离出6-三氯甲基尿嘧啶,(d)将6-三氯甲基尿嘧啶水解成乌味酸。