A convenient methodology has been developed for the synthesis of substituted 2-amino-1,3,4-oxadiazoles from corresponding acylthiosemicarbazides using catalytic amount of iodine/KI in the presence of Oxone® as a bulk oxidant. This offers the advantage of short reaction times and substrate variability which is suitable for the rapid production of analogues required for lead optimisation programmes. The method could also be useful for large-scale synthesis because of the mild reaction conditions and the use commercially inexpensive and safe reagents.
我们开发了一种简便的方法,在 Oxone® 作为大量氧化剂存在的情况下,使用催化量的碘/KI,从相应的酰基硫代氨基甲酰肼合成取代的 2-氨基-1,3,4-恶二唑。这种方法具有反应时间短、底物可变性强的优点,适合快速生产先导优化计划所需的类似物。由于反应条件温和,且使用的试剂在商业上既便宜又安全,因此该方法也可用于大规模合成。