We report here a novel cleavage method for polystyrene-supported selenium resin using CH3I-NaI under mild conditions to prepare 3,5-disubstituted isoxazolines. The polymer selenium resins can be reused without further transformation.
Hypervalent iodine-mediated Ritter-type amidation of terminal alkenes: The synthesis of isoxazoline and pyrazoline cores
作者:Sang Won Park、Soong-Hyun Kim、Jaeyoung Song、Ga Young Park、Darong Kim、Tae-Gyu Nam、Ki Bum Hong
DOI:10.3762/bjoc.14.89
日期:——
heterocyclic cores and functional groups. In this regard, we have developed a Ritter-type alkene functionalization utilizing a PhI(OAc)2 ((diacetoxyiodo)benzene, PIDA)/Lewis acid combination in order to access isoxazoline and pyrazoline cores. Based on allyl ketone oximes and allyl ketone tosylhydrazones, we have developed an alkene oxyamidation and amido-amidation protocol en route to accessing both isoxazoline