A Facile One-Pot Synthesis of 3,5-Disubstituted Isoxazole Derivatives Using Hydroxy (Tosyloxy) Iodobenzene
作者:Ravindra D. Jadhav、Hitesh D. Mistry、Hashim Motiwala、Kishorkumar S. Kadam、Shivaji Kandre、Amol Gupte、Ashok K. Gangopadhyay、Rajiv Sharma
DOI:10.1002/jhet.1556
日期:2013.7
Hydroxy (tosyloxy) iodobenzene (HTIB), a hypervalent iodine reagent, has been extensively used for oxidative transformations. We have developed a one‐pot synthesis wherein aldoximes when reacted with alkynes in the presence of HTIB result in the direct formation of isoxazoles. This simple and straightforward reaction allows for ease of purification while leading to the formation of high purity 3,5‐disubstituted
羟基(甲苯磺酰氧基)碘苯(HTIB),一种高价碘试剂,已被广泛用于氧化转化。我们已经开发了一种单罐合成方法,其中醛基肟在HTIB存在下与炔烃反应时会直接形成异恶唑。这种简单直接的反应使纯化变得容易,同时导致以中等收率形成高纯度的3,5-二取代异恶唑。