ever-increasing demand for impurity compounds for use in impurity profiling as regulatory agencies seek information during registration. Herein, we report the FeCl3-catalyzed oxidative decarboxylation of aryl- and heteroaryl acetic acids to the corresponding carbonyl compounds. A variety of useful aldehydes and ketones were prepared in a simple one-pot transformation by employing an environmentally benign
随着监管机构在注册过程中寻求信息,对用于杂质分析的杂质化合物的需求不断增加。在此,我们报道了 FeCl 3催化的芳基和杂芳基
乙酸氧化脱羧为相应的羰基化合物。通过采用环境友好、低成本且易于获得的
铁盐,通过简单的一锅法转化制备了多种有用的醛和酮。该方法的实用性已通过制备五种有价值的 A
PI 杂质得到证明,包括首次以多克规模合成
酮咯酸杂质 B。