发明授权
US4504665A Process for producing chloronicotinic acid compounds 失效
制备氯烟酸化合物的方法

Process for producing chloronicotinic acid compounds
摘要:
A chloronicotinic acid compound is prepared by hydrolyzing a 3-trichloromethyl pyridine compound in the presence of sulfuric acid or phosphoric acid. By this process, a highly pure chloronicotinic acid compound is obtainable in good yield. This compound is useful as an intermediate for medicines.
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