A novel palladium catalyzed protocol for the synthesis of benzoxazolidine by the reaction sulfamidophenol and terminal alkene was developed. This oxamidation process is simple and does not require any ligand, base or inert atmosphere for the overall transformation. From control experiments, it is apparent that the cross-coupling reaction proceeds with initial formation of enesulfonamide which undergoes
提出了一种新的
钯催化方案,其通过磺酰胺基
苯酚和末端烯烃的反应合成
苯并恶唑烷。该乙酰胺化过程很简单,不需要任何
配体,碱或惰性气氛即可进行整体转化。从对照实验中可以明显看出,交叉偶联反应是随着烯磺酰胺的初步形成而进行的,该烯磺酰胺通过分子内的环化反应而被核仁酸化,随后被TsOH进行原去palpalpalpal化,从而得到
苯并恶唑烷。